10-K

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

(Mark One)

☒ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended March 31, 2021

or

☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from                    to                  

Commission File No. 1-12235

Triumph Group, Inc.

(Exact name of registrant as specified in its charter)

Delaware	51-0347963
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification Number)

899 Cassatt Road, Suite 210, Berwyn, Pennsylvania 19312

(Address of principal executive offices, including zip code)

Registrant's telephone number, including area code: (610) 251-1000

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, par value $.001 per share	TGI	New York Stock Exchange
Purchase rights		New York Stock Exchange

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the Registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes  ☒     No  ☐

Indicate by check mark if the Registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of 1934. Yes  ☐     No  ☒

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes  ☒     No  ☐

Indicate by check mark whether the Registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes  ☒     No  ☐

Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Securities Exchange Act of 1934. (Check one)

Large accelerated filer	☐	Accelerated filer	☒
Non-accelerated filer	☐	Smaller reporting company	☐
Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its report. ☒

Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Securities Exchange Act of 1934). Yes  ☐     No  ☒

As of September 30, 2020, the aggregate market value of the shares of Common Stock held by non-affiliates of the Registrant was approximately $336 million. Such aggregate market value was computed by reference to the closing price of the Common Stock as reported on the New York Stock Exchange on September 30, 2020. For purposes of making this calculation only, the Registrant has defined affiliates as including all directors and executive officers.

The number of outstanding shares of the Registrant's Common Stock, par value $.001 per share, on May 17, 2021, was 64,220,262.

Documents Incorporated by Reference

Portions of the following document are incorporated herein by reference:

The Proxy Statement of Triumph Group, Inc. to be filed in connection with our 2021 Annual Meeting of Stockholders is incorporated in part in Part III hereof, as specified herein.

Table of Contents

Item No.		Page
PART I		3
Item 1.	Business	3
	General	3
	Products and Services	3
	Proprietary Rights	4
	Sales, Marketing and Engineering	5
	Backlog	5
	Dependence on Significant Customers	5
	Competition	5
	Government Regulation, including Environmental Regulations, and Industry Oversight	6
	Human Capital Resources	7
	Executive Officers	8
	Recent Developments	9
	Available Information	9
Item 1A.	Risk Factors	10
Item 1B.	Unresolved Staff Comments	19
Item 2.	Properties	19
Item 3.	Legal Proceedings	20
Item 4.	Mine Safety Disclosures	20
PART II		21
Item 5.	Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	21
Item 7.	Management's Discussion and Analysis of Financial Condition and Results of Operations	23
Item 7A.	Quantitative and Qualitative Disclosures About Market Risk	40
Item 8.	Financial Statements and Supplementary Data	42
Item 9.	Changes in and Disagreements With Accountants on Accounting and Financial Disclosure	86
Item 9A.	Controls and Procedures	86
Item 9B.	Other Information	89
PART III		90
Item 10.	Directors, Executive Officers and Corporate Governance	90
Item 11.	Executive Compensation	90
Item 12.	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	90
Item 13.	Certain Relationships, Related Transactions, and Director Independence	90
Item 14.	Principal Accountant Fees and Services	90
PART IV		91
Item 15.	Exhibits, Financial Statement Schedules	91

PART I

Item 1.  Business

Cautionary Note Regarding Forward-Looking Statements

This report contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 relating to our future operations and prospects, including statements that are based on current projections and expectations about the markets in which we operate, and management's beliefs concerning future performance and capital requirements based upon current available information. Such statements are based on management's beliefs as well as assumptions made by and information currently available to management. When used in this document, words like "may," "might," "will," "expect," "anticipate," "plan," "believe," "potential," and similar expressions are intended to identify forward-looking statements. Actual results could differ materially from management's current expectations. For example, there can be no assurance that additional capital will not be required, and that such amounts may be material, or that additional capital, if required, will be available on reasonable terms, if at all, at such times and in such amounts as may be needed by us. In addition to these factors, among other factors that could cause actual results to differ materially, are uncertainties relating to the integration of acquired businesses; general economic conditions affecting our business segments; the continued impact of the coronavirus (“COVID-19”) pandemic; the severe disruptions to the economy, the financial markets, and the markets in which we compete; dependence of certain of our businesses on certain key customers; and the risk that we will not realize all of the anticipated benefits from acquisitions as well as competitive factors relating to the aerospace industry. For a more detailed discussion of these and other factors affecting us, see the risk factors described in "Item 1A. Risk Factors." A prolonged impact of COVID-19 could also have the effect of heightening many of these risks.

General

Triumph Group, Inc. ("Triumph," the "Company," "we," "us," or "our") was incorporated in 1993 in Delaware. Our companies design, engineer, manufacture, repair, and overhaul a broad portfolio of aerospace and defense systems, subsystems, components, and structures. We serve the global aviation industry, including original equipment manufacturers (“OEMs”) and the full spectrum of military and commercial aircraft operators through the aircraft life cycle.

Products and Services

We offer a variety of products and services to the aerospace industry through two operating segments: (i) Triumph Systems & Support, whose companies design, develop, and support proprietary components, subsystems and systems; produce complex assemblies using external designs; and provide full life cycle solutions for commercial, regional, and military aircraft and (ii) Triumph Aerospace Structures, whose companies supply commercial, business, regional, and military manufacturers with large metallic and composite structures and produce close-tolerance parts primarily to customer designs and model-based definition, including a wide range of aluminum, hard metal and composite structure capabilities.

Systems & Support’s capabilities include hydraulic, mechanical and electromechanical actuation, power and control; a complete suite of aerospace gearbox solutions, including engine accessory gearboxes and helicopter transmissions; active and passive heat exchange technology; fuel pumps, fuel metering units, and full authority digital electronic control fuel systems; hydromechanical and electromechanical primary and secondary flight controls; and a broad spectrum of surface treatment options.

The products and capabilities within this group include the design, manufacture, build and repair of:

Aircraft and engine-mounted accessory drives	Thermal control systems and components
Cargo hooks	High lift actuation
Cockpit control levers	Hydraulic systems and components
Control system valve bodies	Landing gear actuation systems
Electronic engine controls	Landing gear components and assemblies
Exhaust nozzles and ducting	Main engine gear box assemblies
Geared transmissions and drive train components	Main fuel pumps
Fuel-metering units	Secondary flight control systems
Vibration absorbers

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Extensive product and service offerings include full post-delivery value chain services that simplify the maintenance, repair and overhaul ("MRO") supply chain. Through its ground support equipment maintenance, component MRO and postproduction supply chain activities, Systems & Support is positioned to provide integrated planeside repair solutions globally. Capabilities include metallic and composite aircraft structures; nacelles; thrust reversers; interiors; auxiliary power units; and a wide variety of pneumatic, hydraulic, fuel and mechanical accessories. Companies in Systems & Support repair and overhaul various components for the aviation industry, including:

Air cycle machines	Blades and vanes
APUs	Cabin panes, shades, light lenses and other components
Constant speed drives	Combustors
Engine and airframe accessories	Stators
Flight control surfaces	Transition ducts
Integrated drive generators	Sidewalls
Nacelles	Light assemblies
Remote sensors	Overhead bins
Thrust reversers	Fuel bladder cells

Aerospace Structures' products include fuselage panels, horizontal and vertical tails, and subassemblies such as floor grids. Aerospace Structures also has the capability to engineer detailed structural designs in metal and composites. Aerospace Structures capabilities also include advanced composite and interior structures, and joining processes such as welding, autoclave bonding and conventional mechanical fasteners.

The products and capabilities within this group include the design, manufacture, build and repair of:

Composite and metal bonding	Flight control surfaces
Engine nacelles	Integrated testing and certification services
Empennages	Wing flaps
Acoustic and thermal insulation systems	Composite ducts and floor panels

However, as a result of the divestitures disclosed in Note 22, subsequent to March 31, 2021, we no longer design, manufacture, build, and repair aircraft wings and composite and metal bonding.  

Proprietary Rights

We benefit from our proprietary rights relating to designs, engineering and manufacturing processes, and repair and overhaul procedures. For some products, our unique manufacturing capabilities are required by the customer's specifications or designs, thereby necessitating reliance on us for the production of such specially designed products.

We view our name and trademark as significant to our business as a whole. Our products are protected by a portfolio of patents, trademarks, licenses or other forms of intellectual property that expire at various dates in the future. We continually develop and acquire new intellectual property and consider all of our intellectual property to be valuable. However, based on the broad scope of our product lines, management believes that the loss or expiration of any single intellectual property right would not have a material adverse effect on our results of operations, our financial position, or our business segments. Our policy is to file applications and obtain patents for our new products as appropriate, including product modifications and improvements. While patents generally expire 20 years after the patent application filing date, new patents are issued to us on a regular basis.

In our overhaul and repair businesses, OEMs of equipment that we maintain for our customers often include language in repair manuals that relate to their equipment, asserting broad claims of proprietary rights to the contents of the manuals used in our operations. There can be no assurance that OEMs will not try to enforce such claims, including the possible use of legal proceedings. In the event of such legal proceedings, there can be no assurance that such actions against the Company will be unsuccessful. However, we believe that our use of manufacture and repair manuals is lawful.

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Sales, Marketing and Engineering

While each of our operating companies maintains responsibility for selling and marketing its specific products, we have developed two marketing teams at the operating segment level who are focused on business development and cross-selling our broad capabilities. One team is dedicated to Systems & Support, and the other team supports Aerospace Structures.  These teams are responsible for selling aerospace structures, systems, integrated assemblies, and repair and overhaul services, reaching across our operating companies, to our OEM, military, airline and air cargo customers. In certain limited cases, we use independent, commission-based representatives to serve our customers' changing needs in some of the markets and geographic regions in which we operate.

The two group-level marketing teams operate as the front end of the selling process, establishing or maintaining relationships, identifying opportunities to leverage our brand, and providing service for our customers. Each individual operating company is responsible for its own technical support, pricing, manufacturing, and product support. Also, within Systems & Support, we meet our customers’ needs by designing systems that integrate the capabilities of our companies.

A significant portion of our government and defense contracts are awarded on a competitive bidding basis. We generally do not bid or act as the primary contractor but will typically bid and act as a subcontractor on contracts on a fixed-price basis. We generally sell to our other customers on a fixed-price, negotiated contract, or purchase order basis.

When subcontracting, there is a risk of nonperformance by our subcontractors, which could lead to disputes regarding quality, cost or impacts to production schedules. Additionally, economic environment changes or natural disasters, trade sanctions, tariffs, budgetary constraints, earthquakes, fires, extreme weather conditions, or pandemics, affecting the prime contractor and our subcontractors may adversely affect their ability to meet or support our performance requirements.

Backlog

We have a number of long-term agreements with several of our customers. These agreements generally describe the terms under which the customer may issue purchase orders to buy our products and services during the term of the agreement. These terms typically include a list of the products or repair services customers may purchase, initial pricing, anticipated quantities and, to the extent known, delivery dates. In tracking and reporting our backlog, however, we only include amounts for which we have actual purchase orders with firm delivery dates or contract requirements generally within the next 24 months, which primarily relate to sales to our OEM customer base. Purchase orders issued by our aftermarket customers are usually completed within a short period of time. As a result, our backlog data relates primarily to the OEM customers. The backlog information set forth below does not include the sales that we expect to generate from long-term agreements for which we do not have actual purchase orders with firm delivery dates.

As of March 31, 2021, we had outstanding purchase orders representing an aggregate invoice price of approximately $1.87 billion, of which $1.18 billion and $0.68 billion related to Systems & Support and Aerospace Structures, respectively. As of March 31, 2020, our continuing operations had outstanding purchase orders representing an aggregate invoice price of approximately $3.20 billion, of which $1.47 billion and $1.73 billion related to Systems & Support and Aerospace Structures, respectively. Of the existing backlog of $1.87 billion, approximately $0.81 billion will not be shipped by March 31, 2022.  Refer to Management’s Discussion and Analysis of Financial Condition and Results of Operations for further information on our backlog.  

Dependence on Significant Customers

As disclosed in Note 19, a significant portion of our net sales are to the Boeing Company (“Boeing”).  Refer to Note 19 for specific disclosure of the concentration of net sales and accounts receivable to these customers.  A significant reduction in sales to Boeing may have a material adverse impact on our financial position, results of operations and cash flows.

Competition

We compete primarily with Tier 1 and Tier 2 systems suppliers and component manufacturers, some of which are divisions or subsidiaries of other large companies, in the manufacture of aircraft structures, systems components, subassemblies and detail parts.

Competition for the repair and overhaul of aviation components comes from four primary sources, some of whom possess greater financial and other resources than we have, and as a result, may be in a better position to handle the current environment: OEMs, major commercial airlines, government support depots, and other independent repair and overhaul companies. Some major commercial airlines continue to own and operate their own service centers, while others have begun to sell or outsource their repair and overhaul services to other aircraft operators or third parties. Large domestic and foreign airlines that provide repair and overhaul services typically provide these services not only for their own aircraft but for other airlines as well. OEMs also maintain service centers that provide repair and overhaul services for the components they manufacture. Many governments maintain aircraft support depots in their military organizations that maintain and repair the aircraft they operate. Other independent service organizations also compete for the repair and overhaul business of other users of aircraft components.

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Participants in the aerospace industry compete primarily on the basis of breadth of technical capabilities, quality, turnaround time, capacity and price.

Government Regulation, Including Environmental Regulations, and Industry Oversight

Government Regulation and Industry Oversight

The aerospace industry is highly regulated in the United States by the Federal Aviation Administration ("FAA") and in other countries by similar agencies. We must be certified by the FAA and, in some cases, by individual OEMs, in order to engineer and service parts and components used in specific aircraft models. If material authorizations or approvals were revoked or suspended, our operations would be adversely affected. New and more stringent government regulations may be adopted, or industry oversight heightened, in the future and these new regulations, if enacted, or any industry oversight, if heightened, may have an adverse impact on us.

We must also satisfy the requirements of our customers, including OEMs, that are subject to FAA regulations, and provide these customers with products and repair services that comply with the government regulations applicable to aircraft components used in commercial flight operations. The FAA regulates commercial flight operations and requires that aircraft components meet its stringent standards. In addition, the FAA requires that various maintenance routines be performed on aircraft components, and we currently satisfy these maintenance standards in our repair and overhaul services. Several of our operating locations are FAA-certificated repair stations.

Generally, the FAA only grants approvals for the manufacture or repair of a specific aircraft component, rather than the broader approvals that have been granted in the past. The FAA approval process may be costly and time-consuming. In order to obtain an FAA Air Agency Certificate, an applicant must satisfy all applicable regulations of the FAA governing repair stations. These regulations require that an applicant have experienced personnel, inspection systems, suitable facilities and equipment. In addition, the applicant must demonstrate a need for the certificate. An applicant must procure manufacturer’s repair manuals from design approval holders relating to each particular aircraft component.   Because of these regulatory requirements, the application process may involve substantial cost.

The certification processes for the European Aviation Safety Agency ("EASA"), which regulates this industry in the European Union; the Civil Aviation Administration of China; and other comparable foreign regulatory authorities are similarly stringent, involving potentially lengthy audits. EASA was formed in 2002 and is handling most of the responsibilities of the national aviation authorities in Europe, such as the United Kingdom Civil Aviation Authority.

Our operations are also subject to a variety of worker and community safety laws. For example, the Occupational Safety and Health Act of 1970 ("OSHA"), mandates general requirements for safe workplaces for all employees in the United States. In addition, OSHA provides special procedures and measures for the handling of hazardous and toxic substances. Specific safety standards have been promulgated for workplaces engaged in the treatment, disposal or storage of hazardous waste. We believe that our operations are in material compliance with OSHA's health and safety requirements.

Environmental Regulation

Our business, operations and facilities are subject to numerous stringent federal, state, local and foreign environmental laws and regulations by government agencies, including the Environmental Protection Agency ("EPA"). Among other matters, these regulatory authorities impose requirements that regulate the emission, discharge, generation, management, transportation and disposal of hazardous materials, pollutants and contaminants; govern public and private response actions to hazardous or regulated substances which may be or have been released to the environment; and require us to obtain and maintain licenses and permits in connection with our operations. This extensive regulatory framework imposes significant compliance burdens and risks on us. Although management believes that our operations and our facilities are in material compliance with such laws and regulations, future changes in these laws, regulations, or interpretations thereof or the nature of our operations or regulatory enforcement actions which may arise, may require us to make significant additional capital expenditures to ensure ongoing compliance or engage in remedial actions.

Certain of our facilities, including facilities acquired and operated by us or one of our subsidiaries have at one time or another been under active investigation for environmental contamination by federal or state agencies when acquired, and at least in some cases, continue to be under investigation or subject to remediation. We are frequently indemnified by prior owners or operators and/or present owners of the facilities for liabilities that we incur as a result of these investigations and the environmental contamination found that predates our acquisition of these facilities, subject to certain limitations. We also maintain a pollution liability policy that provides coverage for certain material liabilities associated with the cleanup of on-site pollution conditions, as well as defense and indemnity for certain third-party suits (including Superfund liabilities at third-party sites), in each case, to the extent not otherwise indemnified. This policy applies to all of our manufacturing and assembly operations worldwide. Also, as we proceed with our plans to exit certain facilities as part of restructuring and related initiatives, the need for remediation for potential environmental contamination could be identified, and such obligations could be material. If we are required to pay the expenses related to environmental liabilities because neither indemnification nor insurance coverage is available, these expenses could have a material adverse effect on us.

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Human Capital Resources

Our success greatly depends on identifying, attracting, engaging, developing, and retaining a highly skilled workforce in multiple areas, including engineering, manufacturing, information technology, cybersecurity, business development, finance, and strategy and management.  Our human capital management strategy places significant importance on attracting and developing a talented and diverse workforce by creating a workplace that is engaging and inclusive and promotes a culture of innovation, excellence, and continuous improvement. The objectives of our human capital management strategy are aligned with and support our strategic and financial goals.  

We use a wide variety of human capital measures in managing our business, including: workforce demographics and diversity metrics; talent acquisition, retention, and development metrics; and employee safety and health metrics.  

Diversity and Workforce Demographics

We value the diversity of our workforce and believe that the best innovation and business results are achieved when teams are populated with individuals from a diverse set of backgrounds, cultures, genders, and experiences. We have a Diversity & Inclusion Steering Committee (“DISC”) committed to creating an environment in which all employees feel valued, included, and empowered to share their unique experiences, perspectives, and viewpoints.  We believe this is critical to the success of our business and the delivery of worldclass manufacturing, engineering, and aerospace services.  We track the diversity of our leadership and workforce and review our progress toward our diversity objectives with the Company’s Board of Directors on a periodic basis.  Across our total employee population and based on employees who self-identify, as of March 31, 2021, approximately 28% of our employees are female, 10% are people of color, and 8% are veterans.  

Several of our subsidiaries are parties to collective bargaining agreements with labor unions. Under those agreements, we currently employ approximately 1,247 full-time employees. Currently, approximately 19% of our 6,692 permanent employees are represented by labor unions and approximately 55% of net sales are derived from the facilities at which at least some employees are unionized. Of the 1,247 employees represented by unions, no employees are working under contracts that have expired.

Our inability to negotiate an acceptable contract with any of our labor unions could result in strikes by the affected workers and increased operating costs as a result of higher wages or benefits paid to union members. If the unionized workers were to engage in a strike or other work stoppage, or if other employees were to become unionized, we could experience a significant disruption of our operations and higher ongoing labor costs, which could have an adverse effect on our business and results of operations.

Talent Acquisition, Retention, and Development

Hiring, developing, and retaining talented employees, particularly in highly technical areas, is an integral part of our human capital management.  In addition to our focus on recruitment, we monitor attrition rates, including with respect to top talent.  We believe that the commitment and connection of employees to their workplace, what we refer to as employee engagement, is a critical component of retention of top talent.  We periodically conduct surveys of our workforce designed to gauge “employee engagement”.  Our People & Culture Committee monitors the responses to these surveys in our pursuit of continuously improving our employee engagement metrics.  We also continue to invest in technology that supports the effectiveness, efficiency, and engagement of our employees, including advanced communication systems and processes.  These investments were particularly valuable as we navigated the challenges presented by the global COVID-19 pandemic.  

We also attract and reward our employees by providing market-competitive compensation and benefit practices that cover the many facets of health, including resources and programs designed to support physical, mental, and financial wellness. We also provide tuition reimbursement and other educational and training opportunities to our employees.

Employee Safety and Health

Ensuring the safety of our employees is a top priority for us.  Our safety and health program seeks to enhance business value by creating a safe and healthy work environment, promote the resiliency of our workforce and engage our employees.  We provide health and safety guidance and resources to all of our businesses in order to ensure occupational safety, reduce risk, and prevent incidents. Our values include the commitment of each person to creating a safe work environment for themselves and their team members, and, through various programs and activities, we recognize individuals in our organization who make significant contributions to workplace safety.  

We monitor the effectiveness of our safety and health program by comparing recordable incidents and incident severity to specific performance metrics established annually.  We measure the volume of safety incidents through the total recordable incident rate (“TRIR”) metric, and we measure incident severity through the days away restricted and transferred (“DART”) metric across all of our facilities.  These rates are measured on a calendar year basis, and the table below reflects our results over the three most recent calendar years:

	Calendar year ended
Safety Metric	2020	2019	2018
TRIR	1.9	2.3	2.2
DART	1.3	1.4	1.2
TRIR = total number of recordable cases x 200,000 / total hours worked
DART = number of cases with days away from work x 200,000 / total hours worked by all employees

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In response to the global COVID-19 pandemic, we established a cross-functional team to develop appropriate workplace safety and health policies.  We implemented strict protocols aimed at protecting our people and keeping our factories operational and followed Centers for Disease Control and Prevention (“CDC”) guidance.  Drawing upon our core value of acting with velocity, Triumph team members responded locally and on a company-wide basis with innovative solutions to limit the spread of the virus and deliver products and services to customers. This included equipping employees with personal protective equipment; sanitizing workspaces more frequently; and investing in technologies, including enhanced rapid communication software and other technologies that enabled many employees to work remotely.  We limited travel and adjusted our capacity and staffing levels in response to commercial demands. The Company also produced and distributed over 10,000 masks to local medical facilities. Our COVID-19 response team continues to monitor the impact of the pandemic and will continue to provide guidance to our businesses and employees with regard to appropriate safety measures and policies.  

Community Service and Philanthropy

Since 2011, we have demonstrated a deep dedication to corporate citizenship through our Wings community outreach program. Through Wings, based on the needs of their communities, our employees around the world create and implement service projects by partnering with local nonprofit organizations and engage in meaningful volunteer projects that directly benefit local charities committed to serving the needs of others. In 2018, to commemorate our 25th anniversary, the Company committed to 25,000 hours of volunteerism. Through the Wings program and individual acts of volunteerism, employees at our sites have partnered with organizations, including The United Way, The American Red Cross, The Salvation Army, Boys and Girls Club of Middle Tennessee, Ouachita Children’s Center, Los Angeles Regional Food Bank, Second Harvest Food Bank, and many others. The Company enjoys partnering in local communities, and team-based volunteer events help bring our employees together as one team serving its communities.

In 2008, the Triumph Group Charitable Foundation was formed.  The Triumph Group Charitable Foundation allocates its approximately $300 thousand annual grant budget to recipient organizations with the missions of advancing education, particularly in the areas of science, technology, engineering, and mathematics (“STEM”) improving our communities and supporting veterans and military families.

Executive Officers

Our current executive officers are:

Name	Age	Position
Daniel J. Crowley	58	Chair, President and Chief Executive Officer
James F. McCabe, Jr.	58	Senior Vice President, Chief Financial Officer
Jennifer H. Allen	49	Senior Vice President, General Counsel and Secretary
Lance R. Turner	50	Senior Vice President, Chief Human Resources Officer
Thomas A. Quigley, III	44	Vice President, Investor Relations and Controller
William Kircher	54	Executive Vice President, Systems & Support

Daniel J. Crowley was appointed President and Chief Executive Officer and a director of the Company on January 4, 2016. He was elected Chair of the Board of Directors of the Company on November 17, 2020.  Previously, Mr. Crowley served as a corporate vice president and President of Integrated Defense Systems at Raytheon Company from 2013 until 2015, and as President of Network Centric Systems at Raytheon Company from 2010 until 2013. Prior to joining Raytheon Company, Mr. Crowley served as Chief Operating Officer of Lockheed Martin Aeronautics after holding a series of increasingly responsible assignments across its space, electronics, and aeronautics sectors.

James F. McCabe, Jr. has been our Senior Vice President and Chief Financial Officer since August 2016. He joined the Company from Steel Partners Holdings, where he served in a number of roles from 2007 to 2016, including the following: Senior Vice President and CFO, President, Shared Services, and Senior Vice President and CFO of its affiliates Handy & Harman and Steel Excel. Prior to joining Steel Partners Holdings, Mr. McCabe served as Vice President, Finance and Treasurer of American Water’s Northeast Region from 2004 to 2007, and President and CFO of Teleflex Aerospace from 1991 to 2003, which served the global aviation industry. He has previously qualified as a certified public accountant and Six Sigma Green Belt and served as a member of the Board of Governors and the Civil Aviation Council Executive Committee for the Aerospace Industries Association.

Jennifer H. Allen has been a Senior Vice President and our General Counsel and Secretary since September 2018. She joined Triumph Group from CIRCOR International, Inc., where she was Senior Vice President, General Counsel & Secretary from 2016 to 2018.  Previously, she was Vice President & Associate General Counsel – Corporate for BAE Systems, Inc., from 2010 to 2016, a member of the mergers and acquisition group in the New York office of Jones Day from 2005 to 2010, and a member of the business and finance group in the Philadelphia office of Morgan, Lewis & Bockius LLP from 1996 to 2001.

Lance R. Turner was appointed our Senior Vice President and Chief Human Resources Officer in September 2017. From 2013 until September 2017, Mr. Turner served as Vice President of Human Resources for CenturyLink, Inc.; and from 2000 until 2013, as Senior Director of Human Resources for Honeywell.

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Thomas A. Quigley, III has been our Vice President, Investor Relations and Controller since December 2019. From November 2012 to December 2019, Mr. Quigley served as our Vice President and Controller, and serves as the Company's principal accounting officer. Mr. Quigley previously served as the Company's SEC Reporting Manager from 2009 to 2012. From 2002 until joining Triumph in 2009, Mr. Quigley held various roles within the audit practice of KPMG LLP, including Senior Audit Manager.

William Kircher was appointed our Executive Vice President, Customer Solutions & Support in February 2021, having joined the Company in September 2018. Prior to joining the Company, he served as Chief Operating Officer of MB Aerospace, a Blackstone portfolio company, from 2016 to 2017 and as CEO of VAS Aero Services, a HIG portfolio company, in 2015. Mr. Kircher also spent 18 years with United Technologies Corporation in various domestic and international leadership roles, including President, UTC Aerospace Singapore, and Vice President, Singapore Overhaul and Repair for Pratt and Whitney.

Recent Developments

As disclosed in Note 3, we completed the divestiture of a number of our assets and operations in the year ended March 31, 2021, the largest of which was the transfer of the assets and certain liabilities associated with our Gulfstream G650 wing supply chain activities.  Additionally, in the year ended March 31, 2021, we entered into definitive agreements to sell the composites manufacturing operations located in Milledgeville, Georgia, and Rayong, Thailand, as well as our manufacturing operations located in Red Oak, Texas.  These transactions closed subsequent to March 31, 2021, and we received net proceeds of approximately $155.0 million.  We intend to use approximately $120.0 million of the net proceeds to redeem approximately $113.0 million aggregate principal amount of the First Lien Notes at a redemption price of 106.656%, plus accrued and unpaid interest.   These divestiture transactions represent progress on our transition to focusing on our businesses within the Systems & Support operating segment.

Refer to the accompanying consolidated financial statements and related notes for descriptions of other material matters occurring in the year ended March 31, 2021.  

Available Information

For more information about us, visit our website at www.triumphgroup.com. The contents of the website are not part of this Annual Report on Form 10-K. Our electronic filings with the Securities and Exchange Commission ("SEC") (including all Forms 10-K, 10-Q and 8-K, and any amendments to these reports) are available free of charge through our website as soon as reasonably practicable after we electronically file with or furnish them to the SEC. The SEC maintains an internet site that contains reports, proxy and information statements, and other information regarding issuers who file electronically with the SEC at www.sec.gov.

In addition, electronic copies of the Company’s SEC filings will be made available, free of charge, on written request.

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Item 1A.  Risk Factors

Strategic Risks

Strategic risk relates to our future business plans and strategies, including the risks associated with the global macro-environment; competitive threats; the demand for our products and services; the success of our investments in technology and innovation; our portfolio of businesses and capital allocation decisions; dispositions, acquisitions, joint ventures, and restructuring activity; intellectual property; and other risks.

Factors that have an adverse impact on the aerospace industry may adversely affect our results of operations and liquidity.

A substantial percentage of our gross profit and operating results derive from commercial aviation. Our operations have been focused on designing, engineering, manufacturing, repairing and overhauling a broad portfolio of aircraft components, accessories, subassemblies, systems, and aerostructures. Therefore, our business is directly affected by economic factors and other trends that affect our customers in the aerospace industry, including a possible decrease in outsourcing by OEMs and aircraft operators or projected market growth that may not materialize or be sustainable. We are also significantly dependent on sales to the commercial aerospace market, which has been cyclical in nature with significant downturns in the past. When these economic and other factors adversely affect the aerospace industry, they tend to reduce the overall customer demand for our products and services, which decreases our operating income. Economic and other factors that might affect the aerospace industry may have an adverse impact on our results of operations and liquidity. We have credit exposure to a number of commercial airlines, some of which have encountered severe financial difficulties. Some airlines are currently requesting federal assistance and there can be no assurance that they will receive such assistance in the desired amounts, if at all. In addition, an increase in energy costs and the price of fuel to the airlines could result in additional pressure on the operating costs of airlines. The market for jet fuel is inherently volatile and is subject to, among other things, changes in government policy on jet fuel production, fluctuations in the global supply of crude oil and disruptions in oil production or delivery caused by hostility in oil-producing areas. Airlines are sometimes unable to pass on increases in fuel prices to customers by increasing fares due to the competitive nature of the airline industry, and this compounds the pressure on operating costs. Other events of general impact such as natural disasters, pandemics, war, terrorist attacks affecting the industry or pandemic health crises may lead to declines in the worldwide aerospace industry that could adversely affect our business and financial condition.

In addition, demand for our maintenance, repair and overhaul services is strongly correlated with worldwide flying activity. A significant portion of the MRO activity required on commercial aircraft is mandated by government regulations that limit the total time or number of flights that may elapse between scheduled MRO events. As a result, although short-term deferrals are possible, MRO activity is ultimately required to continue to operate the aircraft in revenue-producing service. Therefore, over the intermediate and long term, trends in the MRO market are closely related to the size and utilization level of the worldwide aircraft fleet, as reflected by the number of available seat miles, commonly referred to as ASMs, and cargo-ton miles flown. Consequently, conditions or events that contribute to declines in worldwide ASMs and cargo miles flown, such as those mentioned above, could negatively impact our MRO business.

The effects of the COVID-19 pandemic and other potential future public health crises, epidemics, pandemics or similar events on our business, operating results and cash flows are uncertain.

The global outbreak of the coronavirus disease 2019 (“COVID-19”) was declared a pandemic by the World Health Organization and a national emergency by the U.S. Government in March 2020 and has negatively affected the U.S. and global economy; disrupted global supply chains; resulted in significant travel and transport restrictions, including mandated closures and orders to “shelter-in-place”; and created significant disruption of the financial markets. COVID-19 has already impacted the demand for our products and services. The extent of the continued impact of the COVID-19 pandemic on our operational and financial performance, including our ability to execute our programs in the expected time frame, will depend on future developments, including the duration and spread of the pandemic and related actions taken by the U.S. Government, state and local government officials, and international governments to prevent disease spread, all of which are uncertain and cannot be predicted.

In accordance with the U.S. Department of Defense guidance issued in March 2020 designating the Defense Industrial Base as a critical infrastructure workforce, our U.S. production facilities have continued to operate in support of essential products and services required to meet national security commitments to the U.S. Government and the U.S. military, however, facility closures or work slowdowns or temporary stoppages could occur. In addition, other countries have different practices and policies that can affect our international operations and the operations of our suppliers and customers. For example, we had a brief pause in operations located in Mexico in observance of local COVID-19 policies and additional closures could occur, and we are also seeing impacts from travel restrictions both within and outside the U.S. In some cases, facilities are not operating under full staffing as a result of the impact of COVID-19 on or our customers, which could have a longer-term impact.

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If significant portions of our workforce are unable to work effectively, including because of illness, quarantines, absenteeism, government actions, facility closures, travel restrictions, or other restrictions in connection with the COVID-19 pandemic, our operations will be impacted. We may be unable to perform fully on our contracts and our costs may increase as a result of the COVID-19 outbreak. These cost increases, including costs for employees whose jobs cannot be performed remotely, may not be fully recoverable under our contracts, particularly fixed-price contracts, or adequately covered by insurance. The impact of COVID-19 could worsen if there is an extended duration of any COVID-19 outbreak or a resurgence of COVID-19 infection in affected regions after they have begun to experience improvement. We have also incurred increased costs as part of the measures that we have taken to ensure the health and well-being of our employees.

The continued spread of COVID-19 has also led to disruption and volatility in the global capital markets, which depending on future developments could impact our capital resources and liquidity in the future. We are also monitoring the impacts of COVID-19 on the fair value of our assets.  In the fourth quarter of fiscal 2020, we recognized an impairment of goodwill within the Systems & Support reportable segment that was largely due to the impact of the COVID-19 pandemic on global capital markets as well as certain of the MRO operations within that segment.  We cannot assure you that we will not experience future changes in expectations for sales, earnings and cash flows related to intangible assets and goodwill below our current projections, which could result in additional impairment changes.

To the extent the COVID-19 pandemic adversely affects our business and financial results, it may also have the effect of heightening many of the other risk factors described in this “Risk Factors” section, such as those relating to our level of indebtedness, results of operations and cash flows.

Changes in levels of U.S. Government defense spending or overall acquisition priorities could negatively impact our financial position and results of operations.

We derive a significant portion of our revenue from the U.S. Government, primarily from defense-related programs with the U.S. Department of Defense ("U.S. DoD"). Levels of U.S. defense spending are very difficult to predict and may be impacted by numerous factors such as the political environment, U.S. foreign policy, macroeconomic conditions and the ability of the U.S. Government to enact relevant legislation such as authorization and appropriations bills.

In addition, significant budgetary delays and constraints have already resulted in reduced spending levels, and additional reductions may be forthcoming. The Budget Control Act of 2011 established limits on U.S. Government discretionary spending, including a reduction of defense spending between the 2012 and 2021 U.S. Government fiscal years. Accordingly, long-term uncertainty remains with respect to overall levels of defense spending and it is likely that U.S. Government discretionary spending levels will continue to be subject to pressure.

In addition, there continues to be significant uncertainty with respect to program-level appropriations for the U.S. DoD and other government agencies within the overall budgetary framework described above. While the House and Senate Appropriations committees included funding for major military programs in fiscal year 2020, such as CH-47 Chinook, AH-64 Apache, KC-46A Tanker, UH-60 Black Hawk, Northrop Grumman Global Hawk and V-22 Osprey programs, uncertainty remains about how defense budgets in fiscal year 2021 and beyond will affect these programs. Future budget cuts, including cuts mandated by sequestration, or future procurement decisions associated with the authorizations and appropriations process could result in reductions, cancellations, and/or delays of existing contracts or programs. Any of these impacts could have a material effect on the results of our operations, financial position and/or cash flows.

In addition, as a result of the significant ongoing uncertainty with respect to both U.S. defense spending levels and the nature of the threat environment, we expect the U.S. DoD to continue to emphasize cost-cutting and other efficiency initiatives in its procurement processes. If we can no longer adjust successfully to these changing acquisition priorities and/or fail to meet affordability targets set by the U.S. DoD customer, our revenues and market share would be further impacted.

The profitability of certain development and production programs depends significantly on the assumptions surrounding satisfactory settlement of claims and assertions.

For certain of our new development programs, we regularly commence work or incorporate customer-requested changes prior to negotiating pricing terms for engineering work or the product which has been modified. We typically have the legal right to negotiate pricing for customer-directed changes. In those cases, we assert to our customers our contractual rights to obtain the additional revenue or cost reimbursement we expect to receive upon finalizing pricing terms. An expected recovery value of these assertions is incorporated into our contract profitability estimates when applying contract accounting. Our inability to recover these expected values, among other factors, could result in the recognition of a forward loss on these programs or a lower than expected profit margin and could have a material adverse effect on our results of operations. In addition, negotiations over our claims may lead to disputes with our customers that would result in litigation and its associated costs and risks of damages, penalties and injunctive relief, any of which could have a material, adverse effect on our business and results of operations.

We incur risk associated with new programs with new technologies.

New programs with new technologies typically carry risks associated with design responsibility, development of new production tools, hiring and training of qualified personnel, increased capital and funding commitments, ability to meet customer specifications, delivery schedules and unique contractual requirements, supplier performance, subcontractor performance, ability of the customer

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to meet its contractual obligations to us, and our ability to accurately estimate costs associated with such programs. In addition, any new aircraft program may not generate sufficient demand or may experience technological problems or significant delays in the regulatory certification or manufacturing and delivery schedule. If we were unable to perform our obligations under new programs to the customer's satisfaction or manufacture products at our estimated costs, if we were to experience unexpected fluctuations in raw material prices or supplier problems leading to cost overruns, if we were unable to successfully perform under revised design and manufacturing plans or successfully and equitably resolve claims and assertions, or if a new program in which we had made a significant investment was terminated or experienced weak demand, delays or technological problems, our business, financial condition and results of operations could be materially adversely affected. This risk includes the potential for default, quality problems, or inability to meet weight requirements and could result in low margin or forward loss contracts, and the risk of having to write-off inventory or contract assets if they were deemed to be unrecoverable over the life of the program. In addition, beginning new work on existing programs also carries risks associated with the transfer of technology, knowledge and tooling.

In order to perform on new programs, we may be required to construct or acquire new facilities requiring additional up-front investment costs. In the case of significant program delays and/or program cancellations, we could be required to bear certain unrecoverable construction and maintenance costs and incur potential impairment charges for the new facilities. Also, we may need to expend additional resources to determine an alternate revenue generating use for the facilities. Likewise, significant delays in the construction or acquisition of a plant site could impact production schedules.

Cancellations, reductions or delays in customer orders, or new orders under existing forward loss contracts, may adversely affect our results of operations.

Our overall operating results are affected by many factors, including the timing of orders from large customers and the timing of expenditures to manufacture parts and purchase inventory in anticipation of future sales of products and services. A large portion of our operating expenses are relatively fixed. Because several of our operating locations typically do not obtain long-term purchase orders or commitments from our customers, they must anticipate the future volume of orders based upon the historic purchasing patterns of customers and upon our discussions with customers as to their anticipated future requirements. These historic patterns may be disrupted by many factors, including changing economic conditions, inventory adjustments, or work stoppages or labor disruptions at our customers' locations. Cancellations, reductions or delays in orders by a customer or group of customers could have a material adverse effect on our business, financial condition, and results of operations.  Additionally, new orders submitted under long-term contracts that have been determined to be forward loss contracts may result in significant forward loss accruals immediately upon receipt of the new order and have a material adverse effect on our business, financial condition, and results of operations.  

A significant decline in business with a key customer could have a material adverse effect on us.

As disclosed in Note 19, a significant portion of our net sales are to Boeing.  As a result, a significant reduction in purchases by Boeing could have a material adverse impact on our financial condition, results of operations, and cash flows. In addition, some of our individual companies rely significantly on particular customers, the loss of which could have an adverse effect on those businesses.

Competitive pressures may adversely affect us.

We have numerous competitors in the aerospace industry. We compete primarily with the top-tier systems integrators and the manufacturers that supply them, some of which are divisions or subsidiaries of OEMs and other large companies that manufacture aircraft components and subassemblies. Our OEM competitors, which include Boeing, Airbus, Bell Helicopter, Bombardier, Cessna, General Electric, Gulfstream, Honeywell, Lockheed Martin, Northrop Grumman, Raytheon, Rolls Royce and Sikorsky, may choose not to outsource production of systems, subsystems, components, or aerostructures due to, among other things, a desire to vertically integrate direct labor and overhead considerations, capacity utilization at their own facilities, or a desire to retain critical or core skills. Consequently, traditional factors affecting competition, such as price and quality of service, may not be significant determinants when OEMs decide whether to produce a part in-house or to outsource. We also face competition from non-OEM component manufacturers, including Parker, Eaton, Honeywell, Transdigm, and UTC Aerospace Systems. Competition for the repair and overhaul of aviation components comes from three primary sources: OEMs, major commercial airlines and other independent repair and overhaul companies.

We may need to expend significant capital to keep pace with technological developments in our industry.

The aerospace industry is constantly undergoing development and change, and it is likely that new products, equipment, and methods of repair and overhaul service will be introduced in the future. In order to keep pace with any new developments, such as additive technology, we may need to expend significant capital to purchase new equipment and machines or to train our employees in the new methods of production and service. As a result of the current impact of COVID-19, we cannot assure you whether we will need to allocate resources for other purposes.

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We may not realize our anticipated return on capital commitments made to expand our capabilities.

We continually make significant capital expenditures to implement new processes and to increase both efficiency and capacity. Some of these projects require additional training for our employees and not all projects may be implemented as anticipated. If any of these projects do not achieve the anticipated increase in efficiency or capacity, our returns on these capital expenditures may be lower than expected.

We may not be successful in achieving expected operating efficiencies and sustaining or improving operating expense reductions, and may experience business disruptions associated with restructuring, facility consolidations, realignment, cost reduction and other strategic initiatives.

Over the past several years, we have implemented a number of restructuring, realignment and cost-reduction initiatives, including facility consolidations, organizational realignments and reductions in our workforce. While we have realized some efficiencies from these actions, we may not realize the benefits of these initiatives to the extent we anticipated. Further, such benefits may be realized later than expected, and the ongoing difficulties in implementing these measures may be greater than anticipated, which could cause us to incur additional costs or result in business disruptions. In addition, if these measures are not successful or sustainable, we may be compelled to undertake additional realignment and cost-reduction efforts, which could result in significant additional charges. Moreover, if our restructuring and realignment efforts prove ineffective, our ability to achieve our other strategic and business plan goals may be adversely affected. The continued impact of the COVID-19 pandemic could also make it more difficult to realize the benefits and synergies of our actions. We generally do not have the ability to pass on additional costs as a result of the COVID-19 pandemic to our customers under fixed-price contracts.

We do not own certain intellectual property and tooling that is important to our business.

In our overhaul and repair businesses, OEMs of equipment that we maintain for our customers include language in repair manuals relating to their equipment asserting broad claims of proprietary rights to the contents of the manuals used in our operations. Although we believe that our use of manufacture and repair manuals is lawful, there can be no assurance that OEMs will not try to enforce such claims, including through the possible use of legal proceedings, or that any such actions will be unsuccessful.

Our business also depends on using certain intellectual property and tooling that we have rights to use pursuant to license grants under our contracts with our OEM customers. These contracts contain restrictions on our use of the intellectual property and tooling and may be terminated if we violate certain of these restrictions. Our loss of a contract with an OEM customer and the related license rights to use an OEM's intellectual property or tooling would materially adversely affect our business.

Operational Risks

Operational risk relates to risks arising from systems, processes, people, and external events that affect the operation of our businesses. It includes risks related to product and service life cycle and execution; product safety and performance; information management and data protection and security, including cybersecurity; and supply chain and business disruption.

Our business could be negatively affected by cyber or other security threats or other disruptions.

Our businesses depend heavily on information technology and computerized systems to communicate and operate effectively. Our systems and technologies, or those of third parties on which we rely, could fail or become unreliable due to equipment failures, software viruses, cyber threats, terrorist acts, natural disasters, power failures or other causes. These threats arise in some cases as a result of our role as a defense contractor. Our customers, including the U.S. Government, are increasingly requiring cybersecurity protections and mandating cybersecurity standards in our products, and we may incur additional cost to comply with such demands.

Cybersecurity threats are evolving and include, but are not limited to, malicious software; ransomware; attempts to gain unauthorized access to our sensitive information, including that of our customers, suppliers, subcontractors, and joint venture partners; and other electronic security breaches that could lead to disruptions in mission critical systems, unauthorized release of confidential or otherwise protected information and corruption of data.

Although we utilize various procedures and controls to monitor and mitigate these threats, there can be no assurance that these procedures and controls will be sufficient to prevent security threats from materializing. If any of these events were to materialize, the costs related to cyber or other security threats or disruptions may not be fully insured or indemnified and could have a material adverse effect on our reputation, operating results and financial condition.

Any significant disruption from key suppliers of raw materials and key components could delay production and decrease revenue.

We are highly dependent on the availability of essential raw materials such as carbon fiber, aluminum and titanium, and purchased engineered component parts from our suppliers, many of which are available only from single customer-approved sources. Moreover, we are dependent upon the ability of our suppliers to provide raw materials and components that meet our

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specifications, quality standards and delivery schedules. Our suppliers' failure to provide expected raw materials or component parts could require us to identify and enter into contracts with alternate suppliers that are acceptable to both us and our customers, which could result in significant delays, expenses, increased costs, and management distraction and adversely affect production schedules and contract profitability.

We have from time to time experienced limited interruptions of supply, and we may experience a significant interruption in the future. Our continued supply of raw materials and component parts is subject to a number of risks, including:

• availability of capital to our suppliers;

• the destruction of our suppliers' facilities or their distribution infrastructure;

• a work stoppage or strike by our suppliers' employees;

• the failure of our suppliers to provide raw materials or component parts of the requisite quality;

• the failure of essential equipment at our suppliers' plants;

• the failure or shortage of supply of raw materials to our suppliers;

• contractual amendments and disputes with our suppliers;

• reduction to credit terms; and

• geopolitical conditions in the global supply base.

In addition, some contracts with our suppliers for raw materials, component parts and other goods are short-term contracts, which are subject to termination on a relatively short-term basis. The prices of our raw materials and component parts fluctuate depending on market conditions, and substantial increases in prices could increase our operating costs, which, as a result of our fixed-price contracts, we may not be able to recoup through increases in the prices of our products.

Due to economic difficulty, we may face pressure to renegotiate agreements resulting in lower margins. Our suppliers may discontinue provision of products to us at attractive prices or at all, and we may not be able to obtain such products in the future from these or other providers on the scale and within the time periods we require. Furthermore, substitute raw materials or component parts may not meet the strict specifications and quality standards we and our customers demand, or that the U.S. Government requires. If we are not able to obtain key products on a timely basis and at an affordable cost, or we experience significant delays or interruptions of their supply, revenues from sales of products that use these supplies will decrease. The current impact of the COVID-19 pandemic could also result in a larger period of time to find suitable replacements.

Significant consolidation by aerospace industry suppliers could adversely affect our business.

The aerospace industry continues to experience consolidation among suppliers and customers, primarily as it pertains to the airlines. Suppliers have consolidated and formed alliances to broaden their product and integrated system offerings and achieve critical mass. This supplier consolidation is in part attributable to aircraft manufacturers more frequently awarding long-term sole-source or preferred supplier contracts to the most capable suppliers, thus reducing the total number of suppliers. This consolidation could cause us to compete against certain competitors with greater financial resources, market penetration and purchasing power. When we purchase component parts and services from suppliers to manufacture our products, consolidation reduces price competition between our suppliers, which could diminish incentives for our suppliers to reduce prices. If this consolidation continues, our operating costs could increase, and it may become more difficult for us to be successful in obtaining new customers. The COVID-19 pandemic has also put considerable pressure on suppliers, which could exacerbate this consolidation.

Our business could be materially adversely affected by product warranty obligations.

Our operations expose us to potential liability for warranty claims made by customers or third parties with respect to aircraft components that have been designed, manufactured, or serviced by us or our suppliers. Material product warranty obligations could have a material adverse effect on our business, financial condition and results of operations.

Any product liability claims in excess of insurance may adversely affect our financial condition.

Our operations expose us to potential liability for personal injury or death as a result of the failure of an aircraft component that has been serviced by us or the failure of an aircraft component designed or manufactured by us. While we believe that our liability insurance is adequate to protect us from these liabilities, our insurance may not cover all liabilities. Additionally, should insurance market conditions change, general aviation product liability, insurance coverage may not be available in the future at a cost acceptable to us. Any material liability not covered by insurance or for which third-party indemnification is not available could have a material adverse effect on our financial condition.

The lack of available skilled personnel may have an adverse effect on our operations.

From time to time, some of our operating locations have experienced difficulties in attracting and retaining skilled personnel to design, engineer, manufacture, repair and overhaul sophisticated aircraft components. Our ability to operate successfully could be jeopardized if we are unable to attract and retain a sufficient number of skilled personnel to conduct our business.

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Our fixed-price contracts may commit us to unfavorable terms.

A significant portion of our net sales are derived from fixed-price contracts under which we have agreed to provide components or aerostructures for a price determined on the date we entered into the contract. Several factors may cause the costs we incur in fulfilling these contracts to vary substantially from our original estimates, and we bear the risk that increased or unexpected costs may reduce our profit or cause us to sustain losses on these contracts. In a fixed-price contract, we may be required to fully absorb cost overruns, notwithstanding the difficulty of estimating all of the costs we will incur in performing these contracts. Because our ability to terminate contracts is generally limited, we may not be able to terminate our performance requirements under these contracts at all or without substantial liability and, therefore, in the event we are sustaining reduced profits or losses, we could continue to sustain these reduced profits or losses for the duration of the contract term. Our failure to anticipate technical problems, estimate delivery reductions, estimate costs accurately or control costs during performance of a fixed-price contract may reduce our profitability or cause significant losses on programs.

Due to the size and long-term nature of many of our contracts, we are required by GAAP to estimate sales and expenses relating to these contracts in our financial statements, which may cause actual results to differ materially from those estimated under different assumptions or conditions.

Our consolidated financial statements are prepared in conformity with accounting principles generally accepted in the United States ("GAAP"). These principles require our management to make estimates and assumptions regarding our contracts that affect the reported amounts of revenue and expenses during the reporting period. Accounting for revenue recognized over time requires judgment relative to assessing risks, estimating contract sales and costs, and making assumptions for schedule and technical issues. Due to the size and nature of many of our contracts, the estimation of total sales and cost at completion is complicated and subject to many variables. While we base our estimates on historical experience and on various assumptions that we believe to be reasonable under the circumstances at the time made, actual results may differ materially from those estimated.

Our operations depend on our manufacturing facilities, which are subject to physical and other risks that could disrupt production.

Our manufacturing facilities or our customers' facilities could be damaged or disrupted by a natural disaster, war, or terrorist activity. We maintain property damage and business interruption insurance at the levels typical in our industry or for our customers and suppliers, however, a pandemic or other major catastrophe, such as an earthquake, hurricane, fire, flood, tornado or other natural disaster at any of our sites, or war or terrorist activities in any of the areas where we conduct operations could result in a prolonged interruption of our business. Any disruption resulting from these events could cause significant delays in shipments of products and the loss of sales and customers, and we may not have insurance to adequately compensate us for any of these events. For leased facilities, timely renewal of leases and risk mitigation from the sale of our leased facilities is required to avoid any business interruption.

We may be subject to work stoppages at our facilities or those of our principal customers and suppliers, which could seriously impact the profitability of our business.

Our unionized workforces and those of our customers and suppliers may experience work stoppages during collective bargaining agreement negotiations. If we are unable to negotiate a contract with those workforces, our operations may be disrupted, and we may be prevented from completing production and delivery of products from those facilities, which would negatively impact our results. Contingency plans have been developed that would allow production to continue in the event of a strike.

Financial Risks 

Financial risk relates to our ability to meet financial obligations and mitigate exposure to broad market risks, including funding and liquidity risks, such as risk related to our credit ratings and our availability and cost of funding; credit risk; and volatility in foreign currency exchange rates, interest rates, and commodity prices. Liquidity risk refers to the potential inability to meet contractual or contingent financial obligations (whether on- or off-balance sheet) as they arise and could potentially impact our financial condition or overall safety and soundness. Credit risk is the risk of financial loss arising from a customer or counterparty failure to meet its contractual obligations to us.

Our substantial debt could adversely affect our financial condition and our ability to operate and grow our business. The terms of our indentures governing our Senior Notes impose significant operating and financial restrictions on us and our subsidiaries, which could also adversely affect our operating flexibility and put us at a competitive disadvantage by preventing us from capitalizing on business opportunities and additional financing may not be available on terms acceptable to us.

The terms of our indentures governing our Senior Notes and Securitization Facility (each as defined in Note 10) impose significant operating and financial restrictions on us, which limit our ability to incur liens, sell assets and enter into certain transactions, among

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other things.  In addition, our debt documents require us to comply with various financial and other covenants set forth in the related agreement. We are in compliance with all of our debt covenants. 

We cannot assure you that we will be able to maintain compliance with the covenants in the agreements governing our indebtedness in the future or, if we fail to do so, that we will be able to obtain waivers from the holders of such indebtedness or amend the covenants and other terms of the agreements governing such indebtedness on commercially reasonable terms, if at all. Failure to maintain compliance with these covenants may allow the holders of such indebtedness to require immediate repayment of the indebtedness owed to them and to terminate any unfunded commitments, which could have a material adverse effect on our operations.

We may periodically need to obtain additional financing in order to meet our debt obligations as they come due, to support our operations and/or to make acquisitions. Our access to the debt capital markets and the cost of borrowings are affected by a number of factors, including market conditions and the strength of our credit ratings and the impact of the COVID-19 pandemic on our markets.  If we cannot obtain adequate sources of credit on favorable terms, or at all, our business, operating results, and financial condition could be adversely affected. We may also seek transactions to extend the maturity of our debt, reduce leverage or obtain covenant flexibility. Such transactions could result in us incurring additional secured debt or equity and there can be no assurance that we will be successful in these endeavors.

Volatility in the financial markets may impede our ability to successfully access capital markets and ensure adequate liquidity and may adversely affect our customers and suppliers.

Turmoil in the capital markets may impede our ability to access the capital markets when we would like, or need, to raise capital or may restrict our ability to borrow money on favorable terms. Such market conditions could have an adverse impact on our flexibility to react to changing economic and business conditions and on our ability to fund our operations and capital expenditures in the future. In addition, interest rate fluctuations, financial market volatility, or credit market disruptions may also negatively affect our customers' and our suppliers' ability to obtain credit to finance their businesses on acceptable terms. As a result, our customers' need for and ability to purchase our products or services may decrease, and our suppliers may increase their prices, reduce their output or change their terms of sale. If our customers' or suppliers' operating and financial performance deteriorates, or if they are unable to make scheduled payments or obtain credit, our customers may not be able to pay, or may delay payment of, accounts receivable owed to us, and our suppliers may restrict credit or impose different payment terms. Any inability of customers to pay us for our products and services or any demands by suppliers for different payment terms may adversely affect our earnings and cash flow.

Our expansion into international markets may increase credit, currency and other risks, and our current operations in international markets expose us to such risks.

As we pursue customers in Asia, South America and other less developed aerospace markets throughout the world, our inability to ensure the creditworthiness of our customers in these areas could adversely impact our overall profitability. In addition, with operations in China, France, Germany, Ireland, Mexico, Thailand and the United Kingdom, and customers throughout the world, we are subject to the legal, political, social and regulatory requirements, and economic conditions of other jurisdictions. In the future, we may also make additional international capital investments, including further acquisitions of companies outside the United States or companies having operations outside the United States. Risks inherent to international operations include, but are not limited to, the following:

• difficulty in enforcing agreements in some legal systems outside the United States;

• imposition of additional withholding taxes or other taxes on our foreign income, tariffs or other restrictions on foreign trade and investment, including currency exchange controls;

• fluctuations in exchange rates which may affect demand for our products and services and may adversely affect our profitability in U.S. dollars;

• inability to obtain, maintain or enforce intellectual property rights;

• changes in general economic and political conditions in the countries in which we operate;

• unexpected adverse changes in the laws or regulatory requirements outside the United States, including those with respect to environmental protection, export duties and quotas;

• failure by our employees or agents to comply with U.S. laws affecting the activities of U.S. companies abroad;

• difficulty with staffing and managing widespread operations; and

• difficulty of and costs relating to compliance with the different commercial and legal requirements of the countries in which we operate.

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Financial market conditions may adversely affect the benefit plan assets for our defined benefit plans, increase funding requirements and materially impact our statements of financial position and cash flows.

Our benefit plan assets are invested in a diversified portfolio of investments in both the equity and debt categories, as well as limited investments in other alternative investments. The current market values of all of these investments, as well as the related benefit plan liabilities are impacted by the movements and volatility in the financial markets. In accordance with the Compensation—Retirement Benefits topic of the Accounting Standards Codification ("ASC"), we have recognized the overfunded or underfunded status of a defined benefit postretirement plan as an asset or liability on our balance sheet, and will recognize changes in that funded status in the year in which the changes occur. The funded status is measured as the difference between the fair value of the plan's assets and the projected benefit obligation. A decrease in the fair value of these plan assets or a decrease in interest rates resulting from movements in the financial markets will increase the underfunded status of the plans recorded on our consolidated balance sheets and result in additional cash funding requirements to meet the minimum required funding levels.

Legal & Compliance Risks

Legal and compliance risk relates to risks arising from the government and regulatory environment and action and from legal proceedings and compliance with integrity policies and procedures, including those relating to financial reporting and environmental, health, and safety matters. Government and regulatory risk includes the risk that the government or regulatory actions will impose additional cost on us or require us to make adverse changes to our business models or practices.

Our international sales and operations are subject to applicable laws relating to trade, export controls and foreign corrupt practices, the violation of which could adversely affect our operations.

We must comply with all applicable export control laws and regulations of the United States and other countries. United States laws and regulations applicable to us include the Arms Export Control Act, the International Traffic in Arms Regulations ("ITAR"), the Export Administration Regulations ("EAR"), and the trade sanctions laws and regulations administered by the United States Department of the Treasury's Office of Foreign Assets Control ("OFAC"). EAR restricts the export of dual-use products and technical data to certain countries, while ITAR restricts the export of defense products, technical data and defense services. The U.S. Government agencies responsible for administering EAR and ITAR have significant discretion in the interpretation and enforcement of these regulations. We cannot provide services to certain countries subject to United States trade sanctions unless we first obtain the necessary authorizations from OFAC. In addition, we are subject to the Foreign Corrupt Practices Act, which generally bars bribes or unreasonable gifts to foreign governments or officials.

Violations of these laws or regulations could result in significant additional sanctions, including fines, more onerous compliance requirements, more extensive debarments from export privileges, loss of authorizations needed to conduct aspects of our international business, and criminal penalties and may harm our ability to enter into contracts with the U.S. Government. A future violation of ITAR or the other regulations enumerated above could materially adversely affect our business, financial condition and results of operations.

The construction of aircraft is heavily regulated, and failure to comply with applicable laws could reduce our sales or require us to incur additional costs to achieve compliance, and we may incur significant expenses to comply with new or more stringent governmental regulation.

The aerospace industry is highly regulated in the United States by the FAA and in other countries by similar agencies. We must be certified by the FAA and, in some cases, by individual OEMs in order to engineer and service parts, components and aerostructures used in specific aircraft models. If any of our material authorizations or approvals were revoked or suspended, our operations would be adversely affected. New or more stringent governmental regulations may be adopted, or industry oversight heightened in the future, and we may incur significant expenses to comply with any new regulations or any heightened industry oversight.

Any exposure to environmental liabilities may adversely affect us.

Our business, operations and facilities are subject to numerous stringent federal, state, local, and foreign environmental laws and regulations, and we are subject to potentially significant fines or penalties, including criminal sanctions, if we fail to comply with these requirements. In addition, we could be affected by future laws and regulations, including those imposed in response to climate change concerns and other actions commonly referred to as "green initiatives." Compliance with current and future environmental laws and regulations currently requires, and is expected to continue to require, significant operating and capital costs.

Pursuant to certain environmental laws, a current or previous owner or operator of a contaminated site may be held liable for the entire cost of investigation, removal or remediation of hazardous materials at such property. Innocent Landowner Regulations require an Environmental Site Assessment prior to acquisition to prevent unknowingly acquiring impaired property.  Once identified, if the transaction continues, the impairment is not covered by insurance. Although management believes that our operations and facilities are in material compliance with such laws and regulations, future changes in such laws, regulations, or interpretations

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thereof or the nature of our operations or regulatory enforcement actions, which may arise, may require us to make significant additional capital expenditures to ensure compliance in the future. Certain of our facilities, including facilities acquired and operated by us or one of our subsidiaries, have at one time or another been under active investigation for environmental contamination by federal or state agencies when acquired and, at least in some cases, continue to be under investigation or subject to remediation. Lawsuits, claims and costs involving environmental matters may arise in the future. Individual facilities of ours have also been subject to investigation on occasion for possible past waste disposal practices which might have contributed to contamination at or from remote third-party waste disposal sites. In some instances, we are indemnified by prior owners or operators and/or present owners of the facilities for liabilities that we incur as a result of these investigations and the environmental contamination found that predates our acquisition of these facilities, subject to certain limitations, including, but not limited to, specified exclusions, deductibles and limitations on the survival period of the indemnity. We also maintain a pollution liability policy that provides coverage, subject to specified limitations, for specified material liabilities associated with the cleanup of certain on-site pollution conditions, as well as defense and indemnity for certain third-party suits (including Superfund liabilities at third-party sites), in each case, to the extent not otherwise indemnified. Also, as we proceed with our plans to exit certain facilities as part of restructuring and related initiatives, the need for remediation for potential environmental contamination could be identified. However, if we are required to pay the expenses related to environmental liabilities because neither indemnification nor insurance coverage is available, these expenses could have a material adverse effect on our financial position, results of operations, and cash flows.

We could become involved in intellectual property litigation, which could have a material and adverse impact on our profitability.

We and other companies in our industry possess certain proprietary rights relating to designs, engineering, manufacturing processes, and repair and overhaul procedures. In the event that we believe that a third party is infringing upon our proprietary rights, we may bring an action to enforce such rights. In addition, third parties may claim infringement by us with respect to their proprietary rights and may initiate legal proceedings against us in the future. The expense and time of bringing an action to enforce such rights or defending against infringement claims can be significant. Intellectual property litigation involves complex legal and factual questions, which makes the outcome of any such proceedings subject to considerable uncertainty. Not only can such litigation divert management's attention, but it can also expose us to damages and potential injunctive relief, which, if granted, may preclude us from making, using, or selling particular products or technology. The expense and time associated with such litigation may have a material and adverse impact on our profitability.

Our reputation; our ability to do business; and our financial position, results of operations, and/or cash flows may be impacted by the improper conduct of employees, agents, subcontractors, suppliers, business partners or joint ventures in which we participate.

We have implemented policies, procedures, training, and other compliance controls and have negotiated terms designed to prevent misconduct by employees, agents, or others working on our behalf or with us that would violate the applicable laws of the jurisdictions in which we operate, including laws governing improper payments to government officials, the protection of export controlled or classified information, cost accounting and billing, competition and data privacy. However, we cannot ensure that we will prevent all such misconduct committed by our employees, agents, subcontractors, suppliers, business partners, or others working on our behalf or with us, and this risk of improper conduct may increase as we expand globally. In the ordinary course of our business, we form and are members of joint ventures. We may be unable to prevent misconduct or other violations of applicable laws by these joint ventures (including their officers, directors and employees) or our partners. Improper actions by those with whom or through whom we do business (including our employees, agents, subcontractors, suppliers, business partners and joint ventures) could subject us to administrative, civil or criminal investigations and monetary and non-monetary penalties, including suspension and debarment, which could negatively impact our reputation and ability to conduct business and could have a material adverse effect on our financial position, results of operations and/or cash flows.

The U.S. Government is a significant customer of our largest customers, and we and they are subject to specific U.S. Government contracting rules and regulations.

The military aircraft manufacturers' business, and by extension, our business, is affected by the U.S. Government's continued commitment to programs under contract with our customers. The terms of defense contracts with the U.S. Government generally permit the government to terminate contracts partially or completely, either for its convenience or if we default by failing to perform under the contract. Termination for convenience provisions provide only for our recovery of unrecovered costs incurred or committed, settlement expenses and profit on the work completed prior to termination. Termination for default provisions provide for the contractor to be liable for excess costs incurred by the U.S. Government in procuring undelivered items from another source. On contracts where the price is based on cost, the U.S. Government may review our costs and performance, as well as our accounting and general business practices. Based on the results of such audits, the U.S. Government may adjust our contract-related costs and fees, including allocated indirect costs. In addition, under U.S. Government purchasing regulations, some of our costs, including most financing costs, portions of research and development costs, and certain marketing expenses may not be subject to reimbursement.

We bear the potential risk that the U.S. Government may unilaterally suspend our customers or us from new contracts pending the resolution of alleged violations of procurement laws or regulations. Sales to the U.S. Government are also subject to changes in the

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government's procurement policies in advance of design completion. An unexpected termination of, or suspension from, a significant government contract, a reduction in expenditures by the U.S. Government for aircraft using our products, lower margins resulting from increasingly competitive procurement policies, a reduction in the volume of contracts awarded to us, or substantial cost overruns could have a material adverse effect on our financial condition, results of operations and cash flows.

We are subject to the requirements of the National Industrial Security Program Operating Manual for facility security clearance, which is a prerequisite for our ability to perform on classified contracts for the U.S. Government.

U.S. DoD facility security clearance is required in order to be awarded and be able to perform on classified contracts for the U.S. DoD and certain other agencies of the U.S. Government, which is a significant part of our business. We have obtained clearance at appropriate levels that require stringent qualifications, and we may be required to seek higher level clearances in the future. We cannot assure you that we will be able to maintain our security clearance. If for some reason our security clearance is invalidated or terminated, we may not be able to continue to perform our present classified contracts or be able to enter into new classified contracts, which could affect our ability to compete for and capture new business.

Regulations related to conflict minerals have and will continue to force us to incur additional expenses, may make our supply chain more complex and could adversely impact our business.

The Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010 contains provisions to improve transparency and accountability concerning the supply of certain minerals and metals, known as conflict minerals, originating from the Democratic Republic of Congo (the "DRC") and adjoining countries. As a result, in August 2012, the SEC adopted annual investigation, disclosure and reporting requirements for those companies that manufacture or contract to manufacture products that contain conflict minerals that originated from the DRC and adjoining countries. We have and will continue to incur compliance costs, including costs related to determining the sources of conflict minerals used in our products and other potential changes to processes or sources of supply as a consequence of such verification activities. The implementation of these rules could adversely affect the sourcing, supply and pricing of materials used in certain of our products. As there may be only a limited number of suppliers offering "conflict-free" minerals, we cannot be sure that we will be able to obtain necessary conflict-free minerals from such suppliers in sufficient quantities or at competitive prices. Also, we may face reputational challenges if we determine that certain of our products contain minerals not determined to be conflict-free.

Our business is subject to regulation in the United States and internationally.

The manufacturing of our products is subject to numerous federal, state and foreign governmental regulations. The number of laws and regulations that are being enacted or proposed by various governmental bodies and authorities are increasing. Compliance with these regulations is difficult and expensive. If we fail to adhere, or are alleged to have failed to adhere, to any applicable federal, state, or foreign laws or regulations, or if such laws or regulations negatively affect sales of our products, our business, prospects, results of operations, financial condition or cash flows may be adversely affected. In addition, our future results could be adversely affected by changes in applicable federal, state, and foreign laws and regulations, or the interpretation or enforcement thereof, including those relating to manufacturing processes, product liability, government contracts, trade rules and customs regulations, intellectual property, consumer laws, privacy laws, as well as accounting standards and taxation requirements (including tax-rate changes, new tax laws or revised tax law interpretations).

Item 1B.  Unresolved Staff Comments

None.

Item 2.  Properties

As of March 31, 2021, our segments owned or leased properties that are material to our operations with the following square footage:

(Square feet in thousands)	Owned		Leased		Total
Systems & Support		1,444		563		2,007
Aerospace Structures		2,420		2,071		4,491
Corporate		—		30		30
Total		3,864		2,664		6,528

At March 31, 2021, our segments occupied 61% of the square footage in the table above at the following major locations:

• Systems & Support: West Hartford, Connecticut; Park City, Utah; and Hot Springs, Arkansas

• Aerospace Structures: Milledgeville, Georgia; Red Oak, Texas; Grand Prairie, Texas; and Stuart, Florida

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We believe that our properties are adequate to support our operations for the foreseeable future.  As disclosed above, subsequent to March 31, 2021, we completed the sale of our manufacturing operations located in Milledgeville, Georgia, and Red Oak, Texas.  These facilities will reduce the total square footage of owned and leased property as reflected in the table above by approximately 1.8 million square feet.

Item 3.  Legal Proceedings

In the ordinary course of business, we are involved in disputes, claims and lawsuits with employees, suppliers and customers, as well as governmental and regulatory inquiries, that are deemed to be immaterial. Some may involve claims or potential claims of substantial damages, fines, penalties or injunctive relief. While we cannot predict the outcome of any pending or future litigation or proceeding and no assurances can be given, we do not believe that any pending matter will have a material effect, individually or in the aggregate, on its financial position or results of operations.

Item 4.  Mine Safety Disclosures

Not applicable.

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PART II

Item 5.  Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

Our common stock is traded on the New York Stock Exchange under the symbol "TGI." As of May 17, 2021, there were approximately 136 holders of record of our common stock and we believe that our common stock was beneficially owned by approximately 14,000 persons.

Stock Issuances

On February 4, 2021, the Company implemented a new “at the market” stock issuance program by entering into an equity distribution agreement (the “Equity Distribution Agreement”) with Citigroup Global Markets Inc. (the “Manager”). Under the terms of the Equity Distribution Agreement, the Company may from time to time to or through the Manager, acting as agent and/or principal, offer and sell shares of its common stock (the “Shares”), par value $0.001 per share (“Common Stock”) having a gross sales price of up to $150.0 million.  From the date the program was implemented through March 31, 2021, the Company completed the program, selling 9,178,752 shares with a gross sales price of $150.0 million for total proceeds net of stock issuance costs of $145.4 million.

On December 17, 2020, the Company contributed 2,849,002 shares of common stock to the separate pension plan trust with an aggregate contribution value of approximately $40.0 million on the contribution date.

Dividend Policy

During fiscal 2021, we made no declaration or payments of dividends due to the March 2020 suspension of our dividend program.  This suspension is still in place.  In fiscal 2020, we paid cash dividends of $0.16 per share. Our declaration and payment of cash dividends in the future and the amount thereof will depend upon our results of operations, financial condition, cash requirements, future prospects, limitations imposed by credit agreements or indentures governing debt securities and other factors deemed relevant by our Board of Directors. No assurance can be given that cash dividends will be declared and paid at historical levels or at all. Certain of our debt arrangements restrict our paying dividends and making distributions on our capital stock, except for the payment of stock dividends and redemptions of an employee's shares of capital stock upon termination of employment. We currently have an accumulated deficit which could limit or restrict our ability to pay dividends in the future.

Repurchases of Stock

In December 1998, we announced a program to repurchase up to 500,000 shares of our common stock. In February 2008, the Company's Board of Directors authorized an increase in the Company's existing stock repurchase program by up to an additional 500,000 shares of its common stock. In February 2014, the Company's Board of Directors authorized an increase in the Company's existing stock repurchase program by up to an additional 5,000,000 shares of its common stock. Though no purchases have been made in recent years, to the extent permitted by documentation governing our indebtedness, repurchases may be made from time to time in open market transactions, block purchases, privately negotiated transactions or otherwise at prevailing prices. No time limit has been set for completion of the program.  As of May 20, 2021, the Company remains able to purchase an additional 2,277,789 shares under such program. We currently have an accumulated deficit which, together with certain restrictive covenants imposed by credit agreements or indentures governing debt securities, could limit or restrict our ability to repurchase stock in the future.

Equity Compensation Plan Information

The information required regarding equity compensation plan information will be included in our 2021 Proxy Statement in connection with our 2021 Annual Meeting of Stockholders to be held on July 21, 2021, under the heading "Equity Compensation Plan Information" and is incorporated herein by reference.

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The following graph compares the cumulative 5-year total return provided stockholders on our common stock relative with the cumulative total returns of the Russell 1000 index, the Russell 2000 index and the S&P Aerospace & Defense index. An investment of $100 (with reinvestment of all dividends) is assumed to have been made in our common stock and in each of the indexes on March 31, 2016, and its relative performance is tracked through March 31, 2021.

COMPARISON OF 5-YEAR CUMULATIVE TOTAL RETURN*

Among Triumph Group, Inc., and The Russell 1000 and 2000 Indexes

And The S&P Aerospace & Defense Index

* $100 invested on March 31, 2016, in stock or index, including reinvestment of dividends.

	Fiscal year ended March 31,
	2016		2017		2018		2019		2020		2021
Triumph Group, Inc.		100.00		82.23		80.91		61.68		22.04		59.93
Russell 1000		100.00		117.43		133.84		146.29		134.55		216.07
Russell 2000		100.00		126.22		141.10		143.99		109.45		213.26
S&P Aerospace & Defense		100.00		127.20		180.68		180.44		132.85		185.69

The stock price performance included in this graph is not necessarily indicative of future stock price performance.

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Item 7.  Management's Discussion and Analysis of Financial Condition and Results of Operations

The following discussion should be read in conjunction with the consolidated financial statements and notes thereto contained elsewhere herein.

OVERVIEW

We are a major supplier to the aerospace industry and have two reportable segments: (i) Systems & Support, whose companies’ revenues are derived from integrated solutions, including design, development and support of proprietary components, subsystems and systems, production of complex assemblies using external designs, as well as full life cycle solutions for commercial, regional and military aircraft; and (ii) Aerospace Structures, whose companies supply commercial, business, regional, and military manufacturers with large metallic and composite structures and produce close-tolerance parts primarily to customer designs and model-based definition, including a wide range of aluminum, hard metal and composite structure capabilities.

During the fiscal year ended March 31, 2021, we divested of a number of our assets and operations, including the transfer of the assets and certain liabilities associated with our Gulfstream G650 wing supply chain activities.  Additionally, subsequent to March 31, 2021, we completed the sale of our composites manufacturing operations located in Milledgeville, Georgia, and Rayong, Thailand, as well as our manufacturing operations located in Red Oak, Texas.  We recognized combined net losses of $104.7 million primarily from these transactions. These losses are presented on the accompanying consolidated statements of operations within loss on sale of assets and businesses, net.  The operating results associated with the G650 wing supply chain activities and the composites and other manufacturing operations referred to above were included within Aerospace Structures through the date of transfer and through March 31, 2021, respectively.  During the year ended March 31, 2021, these transactions represented, in the aggregate, approximately $266.2 million of the $1.87 billion of consolidated net sales (or approximately 14.2% of consolidated net sales).

Significant financial results for the fiscal year ended March 31, 2021, include:

• Net sales for fiscal 2021 decreased 35.5% to $1.87 billion.

• Operating loss for fiscal 2021 was $326.2 million.

• Included in operating loss for fiscal 2021 was loss on sale of assets and businesses of $104.7 million and restructuring charges of $53.2 million.

• Net loss for fiscal 2021 was $450.9 million or $8.55 per diluted common share.

• Backlog decreased 41.6% over the prior year to $1.9 billion primarily due to the divestitures occurring in and subsequent to the year-ended March 31, 2021, which had backlog of approximately $684.3 million as of March 31, 2020.

Our working capital needs are generally funded through cash flows from operations and borrowings under our credit arrangements. For the fiscal year ended March 31, 2021, we used $173.1 million of cash flows in operating activities, used $9.3 million in investing activities, and received $277.2 million from financing activities. Cash flows provided by operating activities in fiscal year 2020 were $96.7 million.

We have committed to several plans that incorporated the restructuring of certain of our businesses. As of March 31, 2021, with the exception of two pending facility closures to be completed in fiscal 2022 or 2023, we have substantially completed these plans.

During late fiscal 2020, in response to anticipated market headwinds primarily arising from the impact of the COVID-19 pandemic, we committed to new restructuring and cost reduction activities to align capacity with expected demand.  These plans and related activities were implemented to generate savings of approximately $120.0 million in fiscal 2021 on a consolidated basis, primarily from headcount and other human resource related cost reductions.  We achieved these savings goals for the year ended March 31, 2021.  

While the long-term outlook for the aerospace industry remains positive due the fundamental drivers of air travel demand, current expectations are that it will take 2-3 years for travel to return to calendar 2019 levels and a few years beyond that for the industry to return to long-term trend growth, although there can be no assurance that such period will not be longer. To balance the supply and demand given the COVID-19 shock and to preserve long-term potential and competitiveness, our customers have decided to reduce the production rates of several of their commercial aircraft programs. These rate decisions were based on assessments of the demand environment. There is uncertainty with respect to how commercial air traffic levels will recover, and whether and at what point capacity will return to and/or exceed pre-COVID-19 pandemic levels.  We continue to work with our customers to closely monitor the key factors that affect backlog and future demand including customers’ evolving manufacturing plans, the widebody replacement cycle and the cargo market, but such impact could be material and make it difficult to compare periods.

We continue to expect the COVID-19 pandemic to reduce demand for commercial aviation aftermarket due to the recent sharp decreases in flights; as well as reduce demand for commercial aviation production as OEMs have lowered their related delivery rate assumptions.  The COVID-19 pandemic related reduction in OEM production rates has resulted in additional costs to produce and deliver our products.  While these costs were largely mitigated through our cost reduction initiatives during the year ended March 31, 2021, continued or further cost increases may not be mitigated through additional cost reduction initiatives and could negatively impact earnings and cash flows, particularly with respect to our fixed-price contracts.

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We are unable at this time to reasonably estimate potential future additional financial impacts or a range of loss, if any, due to continued uncertainties related to the impacts of COVID-19 on our operations, supply chain and customers, future changes to OEM production rates, supply chain impacts, and/or the results of negotiations with particular customers. Any such impacts, including any changes in our estimates, could have a material adverse effect on our financial position, results of operations, and/or cash flows.

For example, we expect that, in the event that our customers are unable to resume aircraft deliveries consistent with provided assumptions, the continued absence of revenue, earnings, and cash flows associated with those deliveries would continue to have a material impact on our operating results.  In the event that future OEM production rate increases occur at a slower rate or take longer than we are currently assuming, we expect that the growth in inventory and other cash flow impacts associated with production would decrease.  However, while any prolonged delays in planned OEM production rate increases could mitigate the impact on our liquidity, it could significantly increase the overall expected costs to manufacture our products, which would reduce operating margins and/or increase abnormal production costs in the future.  Additionally, the declines in global air travel are expected to result in reduced demand for MRO services and uncertainty exists related to the length of time until air travel returns to historical levels.

From fiscal 2015 to fiscal 2019, our Aerospace Structures business unit experienced operating and forward losses on our production of the Boeing 747-8 fuselage for Boeing, Gulfstream G280 wing for Israel Aerospace Industries, Ltd ("IAI") and Gulfstream G650 wing for Gulfstream. Further discussion is included below regarding the significant developments of each program as well as other significant programs.

Boeing 737 MAX

The Boeing 737 MAX program represented approximately 3% of revenue for the fiscal year ended March 31, 2021. During the third fiscal quarter of the year ended March 31, 2021, the Federal Aviation Administration and the Agência Nacional de Aviação Civil of Brazil approved the 737 MAX return to flight which was quickly followed by Transport Canada and the European Union Aviation Safety Agency in January 2021. Boeing resumed 737 MAX deliveries in our third fiscal quarter of the year ended March 31, 2021, delivering 27 aircraft.  Conditions are expected to improve as COVID-19 vaccination distribution accelerates, and Boeing has projected further 737 MAX rate increases in the latter half of calendar year 2021.  The International Air Transport Association has predicted a 55% increase in passengers traveling in 2021 to 2.8 billion passengers.  

Boeing has predicted that revenue passenger miles will return to 2019 levels in approximately two to three years. Boeing has planned 737 MAX gradual rate increases to 31 per month in early calendar year 2022 with further gradual increases corresponding with market demand. In January, Boeing stated that it has delivered more than 80 737 MAX airplanes since the FAA granted a return to flight and approximately 320 airplanes remain in inventory.  Boeing has stated that the balance of 737 MAX airplanes produced during the grounding and included within inventory will be delivered by the close of calendar year 2022. While we expect to see gradual increases in 737 MAX revenue across both of our reportable segments in fiscal year 2022 based on these assumptions, a resurgence of COVID-19 that results in additional delays or shutdowns could degrade this expectation.

Boeing 747-8

As of March 31, 2020, Triumph’s production on this program has completed from its Hawthorne, California, facility, with the remaining production from its Grand Prairie, Texas, facility expected to be completed in early to mid-fiscal 2022.  Facility exit plans are underway at both locations and are expected to result in additional cost to exit of approximately $7.5 million through mid-fiscal 2022 and result in projected cash uses.

G280

In May 2020, we reached agreement to the accelerated transfer of the G280 wing program to IAI and Korean Aerospace Industries.  We completed the final wing assembly in July 2020 and have closed our manufacturing operations at the leased Tulsa factory as of the end of October 2020.

G650

In the first quarter of fiscal 2019, we reached an agreement with Gulfstream to optimize the supply chain on our G650 work scope.  The G650 wing box and wing completion work, which had been coproduced across three facilities at both companies, are being consolidated into Gulfstream’s facilities in Savannah, Georgia.  We completed the manufacturing of our final wing box in July 2019.  In August 2020, we completed the transfer of our remaining G650 wing supply chain activity and engineering services to Gulfstream.  As a result of the divestiture of our composites manufacturing operations located in Milledgeville, Georgia, in May 2021, we no longer are responsible for the production of G650 wing components.  We continue to produce G650 flaps under a separate supply agreement.

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T-7 Red Hawk

The T-7 Red Hawk wing and horizontal tail manufacturing operations were part of the sale of our Red Oak, Texas manufacturing operations which closed in May 2021.  The related manufacturing operations did not have a significant impact on the results of our operations in the year ended March 31, 2021.  

Although none of the development or production programs noted above individually are expected to have a material impact on our net revenues, they do have the potential, either individually or in the aggregate, to materially and negatively impact our consolidated results of operations if future changes in estimates result in the need for a forward loss provision. Absent any such loss provisions, we do not anticipate that any of these programs will significantly dilute our future consolidated margins, although a prolonged impact of the COVID-19 pandemic could result in changes in expectations.

During the fiscal year ended March 31, 2020, we divested of a number of our assets and operations, including the sale of our manufacturing operations at our Nashville, Tennessee, facility and the assignment of our E-2 Jets contract with Embraer for the manufacture of structural components for their program to AeroSpace Technologies of Korea Inc. ("ASTK").  We recognized combined net losses of $56.9 million associated with the fiscal 2020 divestitures, which are presented on the accompanying consolidated statements of operations within loss on sale of assets and businesses, net.  The operating results of the Nashville manufacturing operations are included in Aerospace Structures through the date of divestiture or assignment.  Collectively, these transactions are referred to as the “fiscal 2020 divestitures.”  

During the fiscal year ended March 31, 2019, we divested of a number of our assets and operations, including (i) selling all of the shares of Triumph Structures - East Texas, Inc. and all of the shares of Triumph Structures - Los Angeles, Inc. and Triumph Processing, Inc. (collectively, the "Long & Large"), (ii) transitioning the responsibility for the Bombardier Global 7500 ("Global 7500") wing program manufacturing operations of Aerospace Structures to Bombardier, (iii) selling all of the shares of Triumph Fabrications - San Diego, Inc. and Triumph Fabrications - Ft. Worth, Inc. (together, "Fabrications"), (iv) selling all of the shares of Triumph Structures – Kansas City, Inc., Triumph Structures – Wichita, Inc., Triumph Gear Systems – Toronto, ULC and Triumph Northwest (The Triumph Group Operations, Inc.) (together, "Machining"), and (v) selling all of the shares of Triumph Aviation Services - NAAS Division, Inc. ("NAAS"). Collectively, these transactions are referred to as the "fiscal 2019 divestitures". We recognized combined net losses of $235.3 million associated with the fiscal 2019 divestitures, which are presented on the accompanying consolidated statements of operations within loss on divestitures. With the exception of NAAS, the operating results for the fiscal 2019 divestitures are included in Aerospace Structures ("fiscal 2019 Aerospace Structures Divestitures") through the respective dates of divestiture. The operating results for NAAS are included in Systems & Support through the date of divestiture.

RESULTS OF OPERATIONS

The following includes a discussion of our consolidated and business segment results of operations. Our diverse structure and customer base do not provide for precise comparisons of the impact of price and volume changes to our results. However, we have disclosed the significant variances between the respective periods.

Non-GAAP Financial Measures

We prepare and publicly release annual audited and quarterly unaudited financial statements prepared in accordance with U.S. GAAP. In accordance with Securities and Exchange Commission (the "SEC") rules, we also disclose and discuss certain non-GAAP financial measures in our public filings and earning releases. Currently, the non-GAAP financial measures that we disclose are Adjusted EBITDA, which is our net loss before interest, income taxes, amortization of acquired contract liabilities, legal settlements, loss on divestitures, depreciation and amortization; and Adjusted EBITDAP, which is Adjusted EBITDA, before pension expense or benefit, including the effects of curtailments, settlements, and other early retirement incentives. We disclose Adjusted EBITDA on a consolidated and Adjusted EBITDAP on a consolidated and a reportable segment basis in our earnings releases, investor conference calls and filings with the SEC. The non-GAAP financial measures that we use may not be comparable to similarly titled measures reported by other companies. Also, in the future, we may disclose different non-GAAP financial measures in order to help our investors more meaningfully evaluate and compare our future results of operations with our previously reported results of operations.

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We view Adjusted EBITDA and Adjusted EBITDAP as operating performance measures and, as such, we believe that the U.S. GAAP financial measure most directly comparable to such measures is net loss. In calculating Adjusted EBITDA and Adjusted EBITDAP, we exclude from net loss the financial items that we believe should be separately identified to provide additional analysis of the financial components of the day-to-day operation of our business. We have outlined below the type and scope of these exclusions and the material limitations on the use of these non-GAAP financial measures as a result of these exclusions. Adjusted EBITDA and Adjusted EBITDAP are not measurements of financial performance under U.S. GAAP and should not be considered as a measure of liquidity, as an alternative to net loss, or as an indicator of any other measure of performance derived in accordance with U.S. GAAP. Investors and potential investors in our securities should not rely on Adjusted EBITDA or Adjusted EBITDAP as a substitute for any U.S. GAAP financial measure, including net loss. In addition, we urge investors and potential investors in our securities to carefully review the reconciliation of Adjusted EBITDA and Adjusted EBITDAP to net loss set forth below, in our earnings releases, and in other filings with the SEC and to carefully review the U.S. GAAP financial information included as part of our Quarterly Reports on Form 10-Q and our Annual Reports on Form 10-K that are filed with the SEC, as well as our quarterly earnings releases, and compare the U.S. GAAP financial information with our Adjusted EBITDA and Adjusted EBITDAP.

Adjusted EBITDA and Adjusted EBITDAP are used by management to internally measure our operating and management performance and by investors as a supplemental financial measure to evaluate the performance of our business that, when viewed with our U.S. GAAP results and the accompanying reconciliation, we believe provides additional information that is useful to gain an understanding of the factors and trends affecting our business. We have spent more than 20 years expanding our product and service capabilities, partially through acquisitions of complementary businesses. Due to the expansion of our operations, which included acquisitions, our net loss has included significant charges for depreciation and amortization. Adjusted EBITDA and Adjusted EBITDAP exclude these charges and provide meaningful information about the operating performance of our business, apart from charges for depreciation and amortization. We believe the disclosure of Adjusted EBITDA and Adjusted EBITDAP helps investors meaningfully evaluate and compare our performance from quarter to quarter and from year to year. We also believe Adjusted EBITDA and Adjusted EBITDAP are measures of our ongoing operating performance because the isolation of noncash charges, such as depreciation and amortization, and nonoperating items, such as interest, income taxes, pension and other postretirement benefits, provides additional information about our cost structure and, over time, helps track our operating progress. In addition, investors, securities analysts, and others have regularly relied on Adjusted EBITDA and Adjusted EBITDAP to provide financial measures by which to compare our operating performance against that of other companies in our industry.

Set forth below are descriptions of the financial items that have been excluded from our net income to calculate Adjusted EBITDA and Adjusted EBITDAP and the material limitations associated with using these non-GAAP financial measures as compared with net loss from continuing operations:

• Gains or losses from sale of assets and businesses may be useful for investors to consider because they reflect gains or losses from sale of operating units or other assets. We do not believe these earnings necessarily reflect the current and ongoing cash earnings related to our operations.

• Legal judgments and settlements, when applicable, may be useful for investors to consider because it reflects gains or losses from disputes with third parties. We do not believe these earnings necessarily reflect the current and ongoing cash earnings related to our operations.

• Non-service defined benefit income or expense from our pension and other postretirement benefit plans (inclusive of the adoption of ASU 2017-07, Compensation – Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost, and certain pension related transactions such as curtailments, settlements, early retirement or other incentives) may be useful for investors to consider because they represent the cost of postretirement benefits to plan participants, net of the assumption of returns on the plan's assets and are not indicative of the cash paid for such benefits. We do not believe these earnings (expenses) necessarily reflect the current and ongoing cash earnings related to our operations.

• Amortization of acquired contract liabilities may be useful for investors to consider because it represents the noncash earnings on the fair value of off-market contracts acquired through acquisitions. We do not believe these earnings necessarily reflect the current and ongoing cash earnings related to our operations.

• Amortization expense and nonrecurring asset impairments (including goodwill, intangible asset impairments, and nonrecurring rotable inventory impairments) may be useful for investors to consider because it represents the estimated attrition of our acquired customer base and the diminishing value of tradenames, product rights, licenses, or, in the case of goodwill, other assets that are not individually identified and separately recognized under U.S. GAAP, or, in the case of nonrecurring asset impairments, the impact of unusual and nonrecurring events affecting the estimated recoverability of existing assets. We do not believe these charges necessarily reflect the current and ongoing cash charges related to our operating cost structure.

• Depreciation may be useful for investors to consider because it generally represents the wear and tear on our property and equipment used in our operations. We do not believe these charges necessarily reflect the current and ongoing cash charges related to our operating cost structure.

• The amount of interest expense and other we incur may be useful for investors to consider and may result in current cash inflows or outflows. However, we do not consider the amount of interest expense and other to be a representative component of the day-to-day operating performance of our business.

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• Income tax expense may be useful for investors to consider because it generally represents the taxes that may be payable for the period and the change in deferred income taxes during the period and may reduce the amount of funds otherwise available for use in our business. However, we do not consider the amount of income tax expense to be a representative component of the day-to-day operating performance of our business.

Management compensates for the above-described limitations of using non-GAAP measures only to supplement our U.S. GAAP results and to provide additional information that is useful to gain an understanding of the factors and trends affecting our business.

The following table shows our Adjusted EBITDA and Adjusted EBITDAP reconciled to our net loss for the indicated periods (in thousands):

	Fiscal year ended March 31,
	2021			2020			2019
Net loss (U.S. GAAP measure)	$	(450,910	)	$	(29,433	)	$	(327,146	)
Income tax expense (benefit)		2,881			5,798			(5,426	)
Interest expense and other		171,397			122,129			114,619
Curtailments, settlements and early retirement incentives		—			14,293			4,032
Union represented employee incentives		—			7,071			—
Legal judgment gain, net of expenses		—			(9,257	)		—
Impairment of rotable inventory		23,689			—			—
Loss on sale of assets and businesses, net		104,702			56,916			235,301
Adoption of ASU 2017-07		—			—			87,241
Amortization of acquired contract liabilities		(38,564	)		(75,286	)		(67,314	)
Depreciation and amortization*		345,716			204,289			149,904
Adjusted EBITDA (non-GAAP measure)	$	158,911		$	296,520		$	191,211
Non-service defined benefit income (excluding settlements)		(49,519	)		(54,880	)		(60,758	)
Adjusted EBITDAP (non-GAAP measure)	$	109,392		$	241,640		$	130,453

* Includes impairment charges related to intangible assets

The following tables show our Adjusted EBITDAP by reportable segment reconciled to our operating (loss) income for the indicated periods (in thousands):

	Fiscal year ended March 31, 2021
	Total			Systems & Support			Aerospace Structures			Corporate/ Eliminations
Operating (loss) income	$	(326,151	)	$	113,517		$	(267,702	)	$	(171,966	)
Loss on sale of assets and businesses		104,702			—			—			104,702
Impairment of rotable inventory		23,689			23,689			—			—
Amortization of acquired contract liabilities		(38,564	)		(15,062	)		(23,502	)		—
Depreciation and amortization*		345,716			33,549			308,708			3,459
Adjusted EBITDAP	$	109,392		$	155,693		$	17,504		$	(63,805	)

	Fiscal year ended March 31, 2020
	Total			Systems & Support			Aerospace Structures			Corporate/ Eliminations
Operating income (loss)	$	57,907		$	141,341		$	41,864		$	(125,298	)
Legal judgment gain, net of expenses		(9,257	)	$	—		$	—		$	(9,257	)
Loss (gain) on sale of assets and businesses		56,916		$	—		$	(10,121	)	$	67,037
Union represented employee incentives		7,071			—			7,071			—
Amortization of acquired contract liabilities		(75,286	)		(34,486	)		(40,800	)		—
Depreciation and amortization*		204,289			98,497			102,418			3,374
Adjusted EBITDAP	$	241,640		$	205,352		$	100,432		$	(64,144	)

	Fiscal year ended March 31, 2019
	Total			Systems & Support			Aerospace Structures			Corporate/ Eliminations
Operating (loss) income	$	(274,679	)	$	201,094		$	(152,407	)	$	(323,366	)
Loss on sale of assets and businesses		235,301			—			—			235,301
Adoption of ASU 2017-07		87,241			—			87,241			—
Amortization of acquired contract liabilities		(67,314	)		(34,121	)		(33,193	)		—
Depreciation and amortization		149,904			35,373			111,431			3,100
Adjusted EBITDAP	$	130,453		$	202,346		$	13,072		$	(84,965	)

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* Includes impairment charges related to intangible assets

The fluctuations from period to period within the amounts of the components of the reconciliations above are discussed further below within Results of Operations.

Fiscal year ended March 31, 2021, compared with fiscal year ended March 31, 2020

	Year Ended March 31,
	2021			2020
	(in thousands)
Net sales	$	1,869,719		$	2,900,117
Segment operating (loss) income	$	(154,185	)	$	183,205
Corporate expense		(171,966	)		(125,298	)
Total operating (loss) income		(326,151	)		57,907
Interest expense and other		171,397			122,129
Non-service defined benefit income		(49,519	)		(40,587	)
Income tax expense		2,881			5,798
Net loss	$	(450,910	)	$	(29,433	)

Net Sales

Net sales decreased by $1.03 billion, or 35.5%, to $1.87 billion for the fiscal year ended March 31, 2021, from $2.90 billion for the fiscal year ended March 31, 2020. Organic sales adjusted for inter-segment sales decreased $782.3 million, or 29.9%, with additional declines from the Nashville and G650 divestitures of $248.1 million. Organic sales decreased primarily due to the impacts of the COVID-19 pandemic, including temporarily idle facilities and certain production rate decreases primarily on commercial programs, planned reductions on sunsetting programs (i.e., 747-8, G280, G550), and the transitioned workscope on the E-2 Jet program.  These declines were partially offset by increases in military platforms.  Net sales for the year ended March 31, 2021, included $43.8 million in total nonrecurring revenues, as compared with $41.5 million for the year ended March 31, 2020.

Cost of Sales and Gross Margin

Cost of sales decreased by $831.1 million, or 36.0%, to $1.48 billion for the fiscal year ended March 31, 2021, from $2.31 billion for the fiscal year ended March 31, 2020. Organic cost of sales adjusted for inter-segment sales decreased $588.8 million, or 29.0%, with additional declines from the Nashville and G650 divestitures of $242.3 million. Organic cost of sales decreased primarily due to the lower volumes described above within our discussion of net sales and a $10.0 million partial reversal of prior loss reserves. These decreases were partially offset by an approximately $23.7 million impairment loss recognized in cost of sales on certain rotable inventory that primarily arose as a result of customer fleet retirement announcements resulting from the COVID-19 pandemic.

Organic gross margin for the fiscal year ended March 31, 2021, was 21.1% compared with 22.1% for the fiscal year ended March 31, 2020. The gross margin for the fiscal year ended March 31, 2021, decreased primarily as a result of the impairment of rotable asset inventory as cost-reduction actions and certain favorable customer settlements offset absorption related increases.  Gross margin for the year ended March 31, 2021, included net favorable cumulative catch-up adjustments on long-term contracts of $12.3 million. The favorable cumulative catch-up adjustments to operating income included gross favorable adjustments of $55.2 million and gross unfavorable adjustments of $42.8 million. Gross margins for the year ended March 31, 2020, included net unfavorable cumulative catch-up adjustments of $22.8 million.

Segment Operating Income

Segment operating income decreased by $337.4 million, or 184.2%, to an operating loss of $154.2 million for the fiscal year ended March 31, 2021, from segment operating income of $183.2 million for the fiscal year ended March 31, 2020. Organic segment operating income decreased by $338.9 million, or 187.9%, primarily due to long-lived asset impairment charges of $252.4 million partially offset by the prior year goodwill impairment of $66.1 million, the decreased volumes and impairment of rotable asset inventory discussed above within our discussion of net sales and cost of sales, increased restructuring costs of $20.4 million. These increases were partially offset by decreases in administrative compensation cost of $20.5 million, travel costs of $6.9 million, decreased research and development costs of $4.9 million, the reduction in the forward loss reserve of a commercial widebody program described above within our discussion of cost of sales, and intangible asset amortization expense of $26.7 million, the latter being the result of the reduction in the carrying value of the long-lived assets impaired in the first fiscal quarter impairment as disclosed in Note 2. Additionally, the Nashville and G650 divestitures contributed approximately $4.3 million of operating income in the year ended March 31, 2021, which is consistent with the operating income contributed in the year ended March 31, 2020.  

Corporate Expense

Corporate operations incurred expenses of $172.0 million for the fiscal year ended March 31, 2021, as compared with $125.3 million for the fiscal year ended March 31, 2020. The corporate expenses increased because of increased loss on sale of assets and businesses of $37.7 million, increased restructuring costs of $7.5 million, and a $9.3 million gain on legal judgment in the prior fiscal year. These increases were partially offset by decreased subscription costs of $3.3 million and travel costs of $2.6 million.  

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Interest Expense and Other

Interest expense and other increased by $49.3 million, or 40.3%, to $171.4 million for the fiscal year ended March 31, 2021, compared with $122.1 million for the fiscal year ended March 31, 2020, due to the write-off of approximately $15.6 million of deferred financing fees associated with the extinguishment of our revolving credit facility and partial extinguishment of our 5.25% Senior Notes due June 1, 2022 (the “2022 Notes”), as well as higher interest rates and relative debt levels and a $6.2 million increase from the net unfavorable change in foreign currency exchange rate losses.  

Non-service Defined Benefit Income

Non-service defined benefit income increased by $8.9 million, or 22.0%, to $49.5 million for the fiscal year ended March 31, 2021, compared with $40.6 million for the fiscal year ended March 31, 2020. The increase was primarily due to prior year expenses from pension settlements, special termination benefits, and curtailment losses of $64.6 million partially offset by a prior year gain from curtailment of other post-employment benefits of $49.5 million, partially offset by changes in actuarial assumptions and experience which reduced income for the year ended March 31, 2021, by $6.3 million.

Income Taxes

The income tax expense was $2.9 million for the fiscal year ended March 31, 2021, reflecting an effective tax rate of (0.7)%.  During the fiscal year ended March 31, 2021, we adjusted the valuation allowance against the consolidated net deferred tax asset by $73.9 million primarily due to an increase in the net operating loss and changes to temporary differences related to interest disallowance, long-lived intangible asset impairment, and pension and other postretirement benefit plans. As of March 31, 2021, management determined that it was necessary to maintain a valuation allowance against principally all of our net deferred tax assets.

Fiscal year ended March 31, 2020, compared with fiscal year ended March 31, 2019

	Year Ended March 31,
	2020			2019
	(in thousands)
Net sales	$	2,900,117		$	3,364,930
Segment operating income	$	183,205		$	48,687
Corporate expenses		(125,298	)		(323,366	)
Total operating income (loss)		57,907			(274,679	)
Interest expense and other		122,129			114,619
Non-service defined benefit income		(40,587	)		(56,726	)
Income tax expense (benefit)		5,798			(5,426	)
Net loss	$	(29,433	)	$	(327,146	)

Net Sales

Net sales decreased by $464.8 million, or 13.8%, to $2.90 billion for the fiscal year ended March 31, 2020, from $3.36 billion for the fiscal year ended March 31, 2019.  Organic sales adjusted for inter-segment sales increased $140.5 million, or 5.2%, offset by declines from the fiscal 2019 divestitures and fiscal 2020 divestitures, including the Global 7500 transition, of $605.3 million.  Organic sales increased primarily due to increased volumes across Airbus commercial programs and various military programs, as well as aftermarket demand for military rotorcraft programs in Systems & Support, increased volumes on G550, 767, 787, G280, and M100 programs as well as increased volume and pricing on E-2 Jets sales to ASTK in Aerospace Structures, and increased demand for accessory components.  These increases were partially offset in decreased volumes on 737.

Cost of Sales and Gross Margin

Cost of sales decreased by $617.5 million, or 21.1%, to $2.31 billion for the fiscal year ended March 31, 2020, from $2.92 billion for the fiscal year ended March 31, 2019. Organic cost of sales adjusted for inter-segment sales increased $26.3 million, or 1.2%, offset by declines from the fiscal 2019 divestitures and fiscal 2020 divestitures, including the Global 7500 transition, of $645.6 million. Organic cost of sales increased primarily due to the higher volumes in the above programs partially offset by the prior year forward loss provisions from the adoption of ASU 2017-07 of $87.2 million.  Organic gross margin for the fiscal year ended March 31, 2020, was 20.8% compared with 17.6% for the fiscal year ended March 31, 2019. The gross margin for the fiscal year ended March 31, 2020, increased compared with the prior year period due to the nonrecurring forward loss provisions from the adoption of ASU 2017-07.  

Gross margin included net unfavorable cumulative catch-up adjustments on long-term contracts of $22.8 million. The unfavorable cumulative catch-up adjustments to operating income included gross favorable adjustments of $43.4 million and gross unfavorable adjustments of $66.2 million. Gross margins for fiscal 2019 included net unfavorable cumulative catch-up adjustments of $68.7 million.

Segment Operating Income

Segment operating income increased by $134.5 million, or 276.3%, to $183.2 million for the fiscal year ended March 31, 2020, from $48.7 million for the fiscal year ended March 31, 2019.  Organic segment operating income increased by $45.1 million, or 31.7%,

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primarily due to the increased margins above as well as decreases in administrative compensation cost of $13.7 million and research and development of $8.5 million, were partially offset by a $66.1 million goodwill impairment charge under Systems & Support.   The fiscal 2019 divestitures and fiscal 2020 divestitures contributed $89.4 million in increased operating income in the current year primarily due to incurring operating losses of the fiscal year ended March 31, 2019.  

Corporate Expense

Corporate operations incurred expenses of $125.3 million for the fiscal year ended March 31, 2020, as compared with $323.4 million for the fiscal year ended March 31, 2019.  The corporate expenses included decreased loss on sale of assets and businesses of $168.3 million, decreased compensation cost of $12.3 million, with additional benefit from the legal judgment gain of $9.3 million.  

Interest Expense and Other

Interest expense and other increased by $7.5 million, or 6.6%, to $122.1 million for the fiscal year ended March 31, 2020, compared with $114.6 million for the fiscal year ended March 31, 2019, due to higher interest rates and relative debt levels.

Non-service Defined Benefit Income

Non-service defined benefit income decreased by $16.1 million, or 28.5%, to $40.6 million for the fiscal year ended March 31, 2020, compared with $56.7 million for the fiscal year ended March 31, 2019.  The decrease was primarily due to additional expense in the current year from pension settlements, special termination benefits, and curtailment losses of $64.6 million partially offset by a gain from curtailment of other post-employment benefits of $49.5 million, as well as changes in actuarial assumptions and experience which reduced income for fiscal year 2020 by $4.1 million.

Income Taxes

The income tax expense was $5.8 million for the fiscal year ended March 31, 2020, reflecting an effective tax rate of (24.5)%.  During the fiscal year ended March 31, 2020, we adjusted the valuation allowance against the consolidated net deferred tax asset by $36.9 million primarily due to an increase in the net operating loss and changes to temporary differences related to pension and other postretirement benefit plans.  As of March 31, 2020, management determined that it was necessary to maintain a valuation allowance against principally all of our net deferred tax assets.

Business Segment Performance

We report our financial performance based on the following two reportable segments: Systems & Support and Aerospace Structures. Our Chief Operating Decision Maker ("CODM") utilizes Adjusted EBITDAP as a primary measure of profitability to evaluate performance of our segments and allocate resources.

The results of operations among our reportable segments vary due to differences in competitors, customers, extent of proprietary deliverables and performance. For example, Systems & Support, which generally includes proprietary products and/or arrangements where we become the primary source or one of a few primary sources to our customers, our unique manufacturing capabilities command a higher margin. Also, OEMs are increasingly focusing on assembly activities while outsourcing more manufacturing and repair to third parties, and as a result, are less of a competitive force than in previous years. This compares to Aerospace Structures, which generally includes long-term sole-source or preferred supplier contracts and the success of these programs provides a strong foundation for our business and positions us well for future growth on new programs and new derivatives.

Refer to Item 1 for further details regarding the operations and capabilities of each of our reportable segments.  

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We currently generate a majority of our revenue from clients in the commercial aerospace industry, the military, the business jet industry and the regional airline industry. Our growth and financial results are largely dependent on continued demand for our products and services from clients in these industries. If any of these industries experiences a downturn, our clients in these sectors may conduct less business with us. The following table summarizes our net sales by end market by business segment. The loss of one or more of our major customers or an economic downturn in the commercial airline or the military and defense markets could have a material adverse effect on our business.

	Year Ended March 31,
	2021			2020			2019
Systems & Support
Commercial aerospace		22.0	%		26.5	%		22.6	%
Military		29.5			15.0			12.2
Business Jets		2.0			2.3			1.9
Regional		1.3			1.5			1.4
Non-aviation		1.7			1.3			0.8
Total Systems & Support net sales		56.5	%		46.6	%		38.9	%
Aerospace Structures
Commercial aerospace		25.8	%		30.3	%		30.4	%
Military		7.4			4.0			7.1
Business Jets		9.7			16.0			21.7
Regional		0.6			3.1			1.1
Non-aviation		0.0			0.0			0.8
Total Aerospace Structures net sales		43.5	%		53.4	%		61.1	%
Total Consolidated net sales		100.0	%		100.0	%		100.0	%

The impacts of the COVID-19 pandemic and resulting production rate decreases primarily on commercial programs led to a reduction in the proportion of our sales mix arising from the commercial aerospace end market in both of our segments.  The current year transfer of the assets and certain liabilities associated with our Gulfstream G650 wing supply chain activities and the fiscal 2020 divestitures led to reductions in our sales mix arising from the business jets end market and also contributed to the reductions in commercial aerospace within Aerospace Structures. Additionally, both Systems & Support and Aerospace Structures experienced increases in military end market sales primarily from volume on military rotorcraft.

Business Segment Performance—Fiscal year ended March 31, 2021, compared with fiscal year ended March 31, 2020

	Year Ended March 31,						% Change			% of Total Sales
	2021			2020						2021			2020
	(in thousands)
NET SALES
Systems & Support	$	1,060,001		$	1,357,564			(21.9	)%		56.7	%		46.8	%
Aerospace Structures		814,371			1,555,887			(47.7	)%		43.6	%		53.7	%
Elimination of inter-segment sales		(4,653	)		(13,334	)		65.1	%		(0.3	)%		(0.5	)%
Total net sales	$	1,869,719		$	2,900,117			(35.5	)%		100.0	%		100.0	%

	Year Ended March 31,						% Change			% of Segment Sales
	2021			2020						2021			2020
	(in thousands)
SEGMENT OPERATING (LOSS) INCOME
Systems & Support	$	113,517		$	141,341			(19.7	)%		10.7	%		10.4	%
Aerospace Structures		(267,702	)		41,864			(739.5	)%		(32.9	)%		2.7	%
Corporate		(171,966	)		(125,298	)		(37.3	)%	n/a			n/a
Total segment operating (loss) income	$	(326,151	)	$	57,907			(663.2	)%		(17.4	)%		2.0	%

	Year Ended March 31,						% Change			% of Segment Sales
	2021			2020						2021			2020
	(in thousands)
Adjusted EBITDAP
Systems & Support	$	155,693		$	205,352			(24.2	)%		14.9	%		15.5	%
Aerospace Structures		17,504			100,432			(82.6	)%		2.2	%		6.6	%
Corporate		(63,805	)		(64,144	)		0.5	%	n/a			n/a
	$	109,392		$	241,640			(54.7	)%		6.0	%		8.6	%

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Systems & Support:     

Net Sales

Systems & Support net sales decreased by $297.6 million, or 21.9%, to $1.06 billion for the fiscal year ended March 31, 2021, from $1.36 billion for the fiscal year ended March 31, 2020. Sales decreased primarily due the impact of the COVID-19 pandemic and decreased sales volumes on commercial narrowbody and widebody programs, partially offset by increases in military platforms.

Cost of Sales and Gross Margin

Systems & Support cost of sales decreased by $178.6 million, or 18.6%, to $781.9 million for the fiscal year ended March 31, 2021, from $960.5 million for the fiscal year ended March 31, 2020. Gross margin for the fiscal year ended March 31, 2021, was 26.2% compared with 29.3% for the fiscal year ended March 31, 2020. Cost of sales decreased due to the sales decrease noted above as well as sales mix and the results of our restructuring and cost-reduction activities as well as a $10.0 million partial reversal of prior loss reserves.  These decreases were partially offset by an approximately $23.7 million impairment loss recognized in cost of sales on certain rotable inventory that primarily arose as a result of customer fleet retirement announcements resulting from the COVID-19 pandemic.  Gross margin decreased primarily as a result of the changes in sales mix and the impairment of rotable inventory, as cost-reduction actions offset absorption related increases.

Operating Income and Adjusted EBITDAP

Systems & Support operating income decreased by $27.8 million, or 19.7%, to $113.5 million for the fiscal year ended March 31, 2021, from $141.3 million for the fiscal year ended March 31, 2020. Operating income decreased primarily due to the decreased sales and factors affecting cost of sales noted above, partially offset by reductions in administrative compensation cost of $9.4 million and restructuring costs of $11.8 million as well the goodwill impairment recognized in the year ended March 31, 2020, of $66.1 million. The decrease in Adjusted EBITDAP year over year is due to the same factors that decreased operating income, with the exception of the current year rotable inventory asset impairment and the prior year goodwill impairment, which are excluded from Adjusted EBITDAP.

Operating Margin and Adjusted EBITDAP Margin

Systems & Support operating income as a percentage of segment sales increased to 10.7% for the fiscal year ended March 31, 2021, as compared with 10.4% for the fiscal year ended March 31, 2020, due to the factors described above. These same factors contributed to the decrease in Adjusted EBITDAP margin to 14.9% from 15.5% year over year, with the exception of the current year rotable inventory asset impairment and the prior year goodwill impairment, which are excluded from Adjusted EBITDAP.

Aerospace Structures:     

Net Sales

Aerospace Structures net sales decreased by $741.5 million, or 47.7%, to $814.4 million for the fiscal year ended March 31, 2021, from $1.56 billion for the fiscal year ended March 31, 2020.  Organic net sales decreased by $493.5 million, with additional declines from the Nashville and G650 divestitures of $248.1 million.  Organic net sales decreased due to the planned reductions on sunsetting programs (i.e., 747-8, G280, G550), the transitioned workscope on the E-2 Jets and G650 programs, as well as the impacts of the COVID-19 pandemic, including temporarily idle facilities and certain production rate decreases primarily on commercial programs. Net sales for the year ended March 31, 2021, included $43.8 million in total nonrecurring revenues, as compared with $36.5 million for the year ended March 31, 2020.

Cost of Sales and Gross Margin

Aerospace Structures cost of sales decreased by $661.2 million, or 48.6%, to $699.0 million for the fiscal year ended March 31, 2021, from $1.36 billion for the fiscal year ended March 31, 2020. Organic cost of sales decreased by $418.9 million, with an additional reduction in cost of sales from the Nashville and G650 divestitures of $242.3 million.  Organic gross margin for the fiscal year ended March 31, 2021, was 14.1% compared with 14.5% for the fiscal year ended March 31, 2020.  The decrease in organic cost of sales is due to decrease in sales noted above. Organic gross margin decreased primarily as a result of increased product costs due to the lower sales volumes partially offset by the results of our restructuring and cost reduction activities and certain favorable customer settlements. The gross margin included net favorable cumulative catch-up adjustments of $11.5 million. The net favorable cumulative catch-up adjustments included gross favorable adjustments of $54.4 million and gross unfavorable adjustments of $42.8 million. The net unfavorable cumulative catch-up adjustment for the fiscal year ended March 31, 2020, was $22.9 million.

Operating Income and Adjusted EBITDAP

Aerospace Structures operating income decreased by $309.6 million, or 739.5%, to an operating loss of $267.7 million for the fiscal year ended March 31, 2021, from operating income of $41.9 million for the fiscal year ended March 31, 2020. Organic operating income decreased by $311.1 million, or 795.9%.  The Nashville and G650 divestitures contributed approximately $4.3 million of operating income in the year ended March 31, 2021, which is consistent with the operating income contributed in the year ended March 31, 2020.  The decreased organic operating income for the fiscal year ended March 31, 2021, was primarily the result of the decreases noted above as well as the $252.4 million long-lived asset impairment described above and an increase in restructuring costs of $32.2 million partially offset by decreased administrative compensation cost of $11.1 million and intangible asset amortization expense of $26.7 million, the latter being the result of the reduction in the carrying value of the long-lived assets impaired in the first quarter impairment as disclosed in Note 2. The increase in Adjusted EBITDAP year over year is due to the same factors that increased operating income, except for the long-lived asset impairment charges, which are excluded from Adjusted EBITDAP.

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Operating Margin and Adjusted EBITDAP Margin

Aerospace Structures operating loss as a percentage of segment sales decreased to (32.9)% for the fiscal year ended March 31, 2021, as compared with 2.7% for the fiscal year ended March 31, 2020, due to the decrease in operating income as noted above. These same factors as noted above for the Adjusted EBITDAP contributed to the decrease in Adjusted EBITDAP margin to 2.2% from 6.6% year over year.

Business Segment Performance—Fiscal year ended March 31, 2020, compared with fiscal year ended March 31, 2019

	Year Ended March 31,						% Change			% of Total Sales
	2020			2019						2020			2019
	(in thousands)
NET SALES
Systems & Support	$	1,357,564		$	1,325,011			2.5	%		46.8	%		39.4	%
Aerospace Structures		1,555,887			2,062,404			(24.6	)%		53.7	%		61.3	%
Elimination of inter-segment sales		(13,334	)		(22,485	)		40.7	%		(0.5	)%		(0.7	)%
Total net sales	$	2,900,117		$	3,364,930			(13.8	)%		100.0	%		100.0	%

	Year Ended March 31,						% Change			% of Segment Sales
	2020			2019						2020			2019
	(in thousands)
SEGMENT OPERATING INCOME (LOSS)
Systems & Support	$	141,341		$	201,094			(29.7	)%		10.4	%		15.2	%
Aerospace Structures		41,864			(152,407	)		127.5	%		2.7	%		(7.4	)%
Corporate		(125,298	)		(323,366	)		61.3	%	n/a			n/a
Total segment operating income (loss)	$	57,907		$	(274,679	)		121.1	%		2.0	%		(8.2	)%

	Year Ended March 31,						% Change			% of Segment Sales
	2020			2019						2020			2019
	(in thousands)
Adjusted EBITDAP
Systems & Support	$	205,352		$	202,346			1.5	%		15.5	%		15.7	%
Aerospace Structures		100,432			13,072			668.3	%		6.6	%		0.6	%
Corporate		(64,144	)		(84,965	)		24.5	%	n/a			n/a
	$	241,640		$	130,453			85.2	%		8.6	%		4.0	%

Systems & Support:  

Net Sales

Systems & Support net sales increased by $32.6 million, or 2.5%, to $1.36 billion for the fiscal year ended March 31, 2020, from $1.33 billion for the fiscal year ended March 31, 2019. Organic sales increased by $63.3 million, or 4.9%, offset by declines of $30.8 million from the fiscal 2019 divestitures within Systems & Support.  Organic sales increased due to increased volumes on engine components, Airbus commercial programs, aftermarket demand for military rotorcraft components, and aftermarket spare part sales and accessory component repairs. These increases were partially offset by decreased volumes on 737.  

Cost of Sales and Gross Margin

Systems & Support cost of sales increased by $8.7 million, or 0.9%, to $960.5 million for the fiscal year ended March 31, 2020, from $951.8 million for the fiscal year ended March 31, 2019. Organic cost of sales increased by $33.1 million, or 3.6%, offset by declines of $24.4 million from the fiscal 2019 divestitures within Systems & Support.  Organic gross margin for the fiscal year ended March 31, 2020, was 29.3% compared with 28.3% for the fiscal year ended March 31, 2019. Organic cost of sales increased due to the sales increase noted above and sales mix, partially offset by a reduction of cost of sales as a result of a $5.3 million reduction in acquired contract reserves, which also drove the increased gross margin for the fiscal year ended March 31, 2020.

Operating Income and Adjusted EBITDAP

Systems & Support operating income decreased by $59.8 million, or 29.7%, to $141.3 million for the fiscal year ended March 31, 2020, from $201.1 million for the fiscal year ended March 31, 2019. Organic operating income decreased by $57.2 million, or 28.8% primarily due to the goodwill impairment charge of $66.1 million and increased restructuring costs of $8.3 million, partially offset by decreased research and development costs of $5.9 million and the increased gross margin described above.  The fiscal 2019 divestitures resulted in $2.6 million in decreased operating income in the current year primarily due to operating income earned in the fiscal year ended March 31, 2019.

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Operating Margin and Adjusted EBITDAP Margin

Systems & Support operating income as a percentage of segment sales decreased to 10.4% for the fiscal year ended March 31, 2020, as compared with 15.2% for the fiscal year ended March 31, 2019, due to the factors described above. These same factors contributed to the decrease in Adjusted EBITDAP margin year over year.

Aerospace Structures:   

Net Sales

Aerospace Structures net sales decreased by $506.5 million, or 24.6%, to $1.56 billion for the fiscal year ended March 31, 2020, from $2.06 billion for the fiscal year ended March 31, 2019.  Organic net sales increased by $68.0 million, offset by declines of $574.5 million from the fiscal 2019 and fiscal 2020 divestitures within Aerospace Structures.  Organic net sales increased due to increased volumes for the G280, G550, 767, and M100 programs, as well as increased volumes and pricing related to the E-2 Jets and 787 programs.  These increases were partially offset by decreased volumes on 737.  

Cost of Sales and Gross Margin

Aerospace Structures cost of sales decreased by $637.2 million, or 31.9%, to $1.36 billion for the fiscal year ended March 31, 2020, from $2.00 billion for the fiscal year ended March 31, 2019. Organic cost of sales decreased by $16.0 million, with an additional reduction in cost of sales of $621.3 million from the fiscal 2019 and fiscal 2020 divestitures within Aerospace Structures.  Organic gross margin for the fiscal year ended March 31, 2020, was 13.0% compared with 7.7% for the fiscal year ended March 31, 2019.  The decrease in organic cost of sales is due to the nonrecurring forward loss provisions from the adoption of ASU 2017-07 in the year ended March 31, 2019, of $87.2 million and a reduction in unfavorable cumulative catch-up adjustments of $45.8 million partially offset by increases related to the increased net sales above.  The gross margin included net unfavorable cumulative catch-up adjustments of $22.9 million due in large part to the estimated effects of the COVID-19 pandemic. The net unfavorable cumulative catch-up adjustments included gross favorable adjustments of $43.3 million and gross unfavorable adjustments of $66.2 million. The net unfavorable cumulative catch-up adjustment for the fiscal year ended March 31, 2019, was $68.7 million.

Operating Income and Adjusted EBITDAP

Aerospace Structures operating income increased by $194.3 million, or 127.5%, to $41.9 million for the fiscal year ended March 31, 2020, from an operating loss of $152.4 million for the fiscal year ended March 31, 2019. Organic operating income increased by $102.3 million, or 182.0%, with further increases resulting from the fiscal 2019 and fiscal 2020 divestitures within Aerospace Structures of $92.0 million.  The increased organic operating income for the fiscal year ended March 31, 2020, was primarily due to the increased gross margin discussed above as well as lower administrative compensation due to decreased severance and headcount of approximately $18.8 million and the approximately $10.0 million gain recognized as a result of the transfer of the E-2 Jets program to ASTK. The increase in Adjusted EBITDAP year over year is due to the same factors that increased operating income.

Operating Margin and Adjusted EBITDAP Margin

Aerospace Structures operating income as a percentage of segment sales increased to 2.7% for the fiscal year ended March 31, 2020, as compared with (7.4)% for the fiscal year ended March 31, 2019, due to the increase in operating income as noted above. These same factors as noted above for the Adjusted EBITDAP contributed to the increased Adjusted EBITDAP margin year over year.

Liquidity and Capital Resources

Our working capital needs are generally funded through our current cash and cash equivalents, cash flows from operations, and proceeds from the Securitization Facility. For the fiscal year ended March 31, 2021, we had a net cash outflow of $173.1 million from operating activities, a decrease of $269.8 million, compared with a net cash inflow of $96.7 million for the fiscal year ended March 31, 2020. Cash flows from operations were unfavorably impacted by increased disbursements to our suppliers relative to the receipts from our customers, as we were unable to reduce volumes of our material purchases at the same rates that our sales declined from the impacts of the COVID-19 pandemic.  Cash flows included steady inventory levels and significantly lower accounts payable.  Additionally, of the approximately $51.0 million in cash proceeds from the transfer of the assets and certain liabilities associated with the G650 wing supply chain activities, approximately $50.0 million of the cash proceeds were allocated to the settlement of existing relationships derived from operations and therefore are classified within operating cash flows.  The remaining approximately $1.0 million of the cash proceeds were allocated to the productive assets transferred as part of the transaction and are classified within investing cash flows.  Cash flows from operations began to recover in the second half of the fiscal year.  Cash flows from operations also included approximately $40.0 million in the liquidation of prior period customer advances against current period deliveries.  Interest payments were approximately $116.5 million for the year ended March 31, 2021, as compared with $99.4 million for the year ended March 31, 2020.  The increase in interest payments was the result of higher interest rates and relative debt levels as a result of the financing activities described below.  

In March 2020, in response to anticipated headwinds resulting from the impact of the COVID-19 pandemic on the aerospace industry, including the impact on global air travel, we implemented certain cost reduction actions to improve our financial health, align capacity with expected demand, and ensure our long-term competitiveness.  This included the reduction of overhead and indirect staff and temporary workers and the selective implementation of furloughs across our business to reduce costs while delivering on customer commitments. Through these initiatives, combined with reductions in travel, corporate events, and other expenses, we achieved our cost reduction goals in fiscal year 2021.  We also completed certain previously announced

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consolidation and shutdown initiatives with sunsetting programs within Aerospace Structures that resulted in cash outflows of approximately $20.0 million.  

Cash flows provided by investing activities for the fiscal year ended March 31, 2021, decreased $16.7 million from the fiscal year ended March 31, 2020, to cash used in investing activities of $9.3 million compared with cash provided by investing activities of $7.4 million. Cash flows provided by investing activities for the fiscal year ended March 31, 2021, included cash from the sale of assets and businesses of $15.9 million offset by capital expenditures of $25.2 million. Cash flows used in investing activities for the fiscal year ended March 31, 2020, included cash from the fiscal 2020 divestitures of $47.2 million offset by capital expenditures of $39.8 million.  We currently expect capital expenditures in fiscal 2022 to be in the range of $30.0 million, of which approximately $22.0 million pertains to our core Systems & Support operating segment.  The majority of our fiscal 2022 capital expenditures are capital investments designed to improve our manufacturing efficiency and expand our capabilities.

Cash flows provided by financing activities for the fiscal year ended March 31, 2021, were $277.2 million, compared with cash flows provided by financing activities for the fiscal year ended March 31, 2020, of $293.7 million. In March, we drew on our Credit Facility (as defined below), bringing the outstanding balance as of March 31, 2020, to $400.0 million.  This was done as part of a comprehensive precautionary approach to increase our cash position and maximize our financial flexibility, in light of the current volatility in the global markets resulting from the COVID-19 pandemic.  In the year ended March 31, 2021, the following significant financing cash flow events occurred:

• We issued $700.0 million of 8.875% Senior Secured First Lien Notes due 2024 (the “First Lien Notes”).

• Using a portion of the proceeds from issuance of the First Lien Notes, we terminated the Revolving Credit Facility and fully repaid the $400.0 million borrowed thereunder.

• We fully repaid the $75.0 million borrowed as of March 31, 2020, under our Receivables Securitization Facility.

• We extinguished approximately $63.5 million of the outstanding balance under the 2022 Notes

• We sold 9.2 million shares of common stock for net cash proceeds of approximately $145.4 million

• As part of these transactions, we paid approximately $20.7 million in deferred financing costs.

The remainder of financing cash flows pertain primarily to borrowings and payments under finance leases.  As of March 31, 2021, we had $589.9 million of cash on hand and $34.2 million was available under our receivable securitization facility (the “Securitization Facility”) (subject to any additional constraints arising from the balance of eligible receivables at that time) after giving effect to approximately $27.8 million in outstanding letters of credit.

We have taken a number of actions to improve liquidity. In March 2020, we suspended the declaration and/or payment of dividends until further notice. We have furloughed certain employees and announced reductions in force which were largely implemented in the first and fourth quarters of fiscal 2021. We have reduced discretionary spending as well as reduced or deferred research and development and capital expenditures. We are also working with our customers and supply chain to accelerate receipts and conserve cash. We have also deferred certain employer payroll tax payments pursuant to the Coronavirus Aid, Relief, and Economic Security (“CARES”) Act. In September 2020, we submitted an application to the IRS requesting a change in the plan year for our U.S. pension plan.  The change was designed to minimize the funding impact of the temporary market trough caused by the COVID-19 pandemic.  The IRS approved our application.  As a result, our projected required pension contributions for the next three fiscal years were reduced by approximately $50.0 million.  In addition, the pension funding relief provisions of the American Rescue Plan Act (“ARPA”) further reduced our projected pension funding requirements by approximately an additional $200.0 million over the next six fiscal years. We expect to take advantage of additional programs if passed by the federal government.

As disclosed above, subsequent to March 31, 2021, we completed the sale of our manufacturing operations in Milledgeville, Georgia, Rayong, Thailand, and Red Oak, Texas, receiving net proceeds of approximately $155.0 million.  We intend to use approximately $120.0 million of the net proceeds to redeem approximately $113.0 million aggregate principal amount of the First Lien Notes at a redemption price of 106.656%, plus accrued and unpaid interest. The redemption is required by the terms of the First Lien Notes, and following the redemption, approximately $587.0 million aggregate principal amount of First Lien Notes will remain outstanding. The divestiture transactions will significantly reduce our cash receipts from customers as well as our contractual obligations as disclosed below, including reducing the risk of incurring cash flow losses on long-term fixed price contracts.  We also expect that in the first quarter of fiscal 2022 we will use available cash to redeem all $236.5 million aggregate principal outstanding amount of our 2022 Notes at a redemption price of 100.000%, plus accrued and unpaid interest.  Subsequent to this redemption, we will have no material outstanding indebtedness maturing before 2024.  

While we currently expect fiscal 2022 operations to result in net cash outflows due to liquidation of prior customer advances, losses on exit costs on our 747-8 program and customer settlement; we believe, based on an assessment of our current cash as presented on the accompanying consolidated balance sheet as of March 31, 2021, as well as current market conditions, that cash flows from operations and borrowings under our receivable securitization facility (the “Securitization Facility”) will be sufficient to meet anticipated cash requirements for our current operations for at least the next 12 months.  We also believe, based on our current cash, our fiscal 2022 operating cash flow expectations, the expected recovery of cash flows from operations subsequent to fiscal 2022, the successful capital market transactions occurring during the year ended March 31, 2021, and the repayment of the 2022 Notes, that we have the ability to generate and obtain adequate amounts of cash to meet anticipated cash requirements for the foreseeable future. We are evaluating additional funding options from the U.S. government via the U.S. Treasury and various Federal Reserve programs. We are also considering various divestiture opportunities that should provide liquidity as well as opportunities to access credit and capital markets.  There can be no assurance that such funding sources will be available to us on

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terms favorable to us, if at all. We may also seek transactions to extend the maturity of our indebtedness, reduce leverage, or decrease interest expense. Such transactions could include one or more repurchases or exchanges of our outstanding indebtedness. These transactions could increase our total amount of secured indebtedness or be dilutive to stockholders. There can be no assurances if or when we will consummate any such transactions or the timing thereof.

On August 17, 2020, we completed a series of refinancing transactions that are described below:

• We issued $700.0 million principal amount of the First Lien Notes pursuant to an indenture among us, the Guarantor Subsidiaries (as defined below) and U.S. Bank National Association, as trustee (the “First Lien Notes Indenture”). The First Lien Notes were sold at 100% of the principal amount and have an effective interest yield of 8.875%.

• We repaid the loans and other amounts outstanding under our revolving credit facility (the “Revolving Credit Facility”), which was governed by the Third Amended and Restated Credit Agreement, dated as of November 19, 2013 (as amended, the “Revolving Credit Agreement”) and terminated all commitment thereunder.  The payment of $335.2 million was made using a portion of the proceeds from the issuance of the First Lien Notes.  We initially cash collateralized the letters of credit issued under the Revolving Credit Agreement but now have the ability to issue letters of credit under the Securitization Facility.

• We entered into amendments to the Securitization Facility.  The August amendments removed the covenants that required us to maintain certain financial ratios.  As of March 31, 2021, the maximum amount available under the Receivables Securitization Facility was $75.0 million, and we have the ability to reduce the facility amount to not less than $50.0 million.  The actual amount available under the Securitization Facility at any point in time is dependent upon the balance of eligible accounts receivables as well as the amount of letters of credit outstanding. At March 31, 2021, there was $0.0 million outstanding under our Securitization Facility. Interest rates on the Securitization Facility are based on prevailing market rates for short-term commercial paper, plus a program fee and a commitment fee.

On September 29, 2020, we entered into additional amendments to the Securitization Facility.  The September amendments provide us with enhanced liquidity options by establishing a letter of credit facility under the Securitization Facility which effectively replaces a similar limited letter of credit facility under the Revolving Credit Facility. Pursuant to the letter of credit facility, we may request the Securitization Facility’s administrator to issue one or more letters of credit that will expire no later than 12 months after the date of issuance, extension or renewal, as applicable.

The 2022 Notes and the 7.750% Senior Notes due August 15, 2025 (the “2025 Notes”) (collectively, the "Senior Notes") are our senior unsecured obligations and rank equally in right of payment with all of our other existing and future senior unsecured indebtedness and senior in right of payment to all of our existing and future subordinated indebtedness. The Senior Notes are guaranteed on a full, joint and several basis by each of the Guarantor Subsidiaries.

Pursuant to the documentation governing the Senior Notes, we may redeem some or all of our Senior Notes prior to their stated maturities, subject to certain limitations set forth in the indenture governing the applicable Senior Notes and, in certain cases, subject to significant prepayment premiums. We are obligated to offer to repurchase the Senior Notes at specified prices as a result of certain change-of-control events and a sale of all or substantially all of our assets. These restrictions and prohibitions are subject to certain qualifications and exceptions.

The indentures governing the Senior Notes, as well as Securitization Facility, contain covenants and restrictions that, among other things, limit our ability and the ability of any of the Guarantor Subsidiaries to (i) grant liens on our assets; (ii) make dividend payments, other distributions or other restricted payments; (iii) incur restrictions on the ability of the Guarantor Subsidiaries to pay dividends or make other payments or investments; (iv) enter into sale and leaseback transactions; (v) merge, consolidate, transfer or dispose of substantially all of their assets; (vi) incur additional indebtedness; (vii) use the proceeds from sales of assets, including capital stock of restricted subsidiaries (in the case of the Senior Notes); and (viii) enter into transactions with affiliates. We are currently in compliance with all covenants under our debt documents and expect to remain in compliance for the foreseeable future.

For further information on our long-term debt, see Note 10.

The 2022 Notes and 2025 Notes are our senior unsecured obligations and rank equally in right of payment with all of our other existing and future senior unsecured indebtedness and senior in right of payment to all of our existing and future subordinated indebtedness. The 2022 Notes and 2025 Notes are guaranteed on a full, joint and several basis by each of our existing and future domestic restricted subsidiaries that is a borrower under any of our credit facilities or that guarantees any of our debt or that of any of our restricted subsidiaries, in each case incurred under any of our credit facilities.

Our only consolidated subsidiaries that are not guarantors of the First Lien Notes, 2022 Notes, the 2024 Notes and the 2025 Notes (the "Non-Guarantor Subsidiaries") are: (i) the receivables securitization special purpose entity, and (ii) the foreign operating subsidiaries.

The First Lien Notes, the 6.250% Senior Secured Notes due September 15, 2024 (the “2024 Notes”),and the guarantees are secured, subject to permitted liens, by second-priority liens on all of our assets and our subsidiary guarantors (the “Collateral”) that secure all of the indebtedness under certain hedging and cash management obligations. The First Lien Notes and the 2024 Notes and the guarantees are not secured by the assets of Non-Guarantor Subsidiaries. Some of our assets are excluded from the Collateral, including our real property assets.

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The following tables present summarized financial information of the Company and the Guarantor Subsidiaries on a combined basis. The combined summarized financial information eliminates intercompany balances and transactions among the Company and the Guarantor Subsidiaries and equity in earnings and investments in any Guarantor Subsidiaries or Non-Guarantor Subsidiaries. The summarized financial information is provided in accordance with the reporting requirements of Rule 13-01 under SEC Regulation S-X for the issuer and Guarantor Subsidiaries.

Parent and Guarantor Summarized Financial Information	March 31,
Summarized Balance Sheet	2021
	in thousands
Assets
Due from non-guarantor subsidiaries	$	441
Current assets		1,232,055
Noncurrent assets		748,480
Noncurrent receivable from non-guarantor subsidiaries		107,059
Liabilities
Due to non-guarantor subisidiaries		14,556
Current liabilities		664,260
Noncurrent liabilities		2,556,915
	Year Ended
Summarized Statement of Operations	March 31, 2021
	in thousands
Net sales to non-guarantor subsidiaries	$	6,301
Net sales to unrelated parties		1,745,186
Gross profit		364,607
Loss from continuing operations before income taxes		(439,735	)
Net loss		(442,132	)

For the fiscal year ended March 31, 2020, we had a net cash inflow of $96.7 million from operating activities, an increase of $271.1 million, compared with a net cash outflow of $174.4 million for the fiscal year ended March 31, 2019. We liquidated approximately $89.0 million in prior period customer advances against current period deliveries.  During the fiscal year ended March 31, 2019, we invested in inventory to support ramping and existing programs.  

Cash flows provided by investing activities for the fiscal year ended March 31, 2020, decreased $193.2 million from the fiscal year ended March 31, 2019. Cash flows provided by investing activities for the fiscal year ended March 31, 2020, included cash from the fiscal 2020 sales of assets and businesses of $47.2 million offset by capital expenditures of $39.8 million. Cash flows used in investing activities for the fiscal year ended March 31, 2019, included cash from the fiscal 2019 divestitures of $247.6 million, offset by capital expenditures of $47.1 million.

Our expected future cash flows for the next five years for long-term debt, leases and other obligations are as follows:

	Payments Due by Period
Contractual Obligations	Total		Less than 1 Year		1 - 3 Years		4 - 5 Years		After 5 Years
	(in thousands)
Debt principal	$	1,982,321	$	5,972	$	242,673	$	1,727,145	$	6,531
Debt interest(1)		497,172		146,375		269,335		79,649		1,813
Operating leases		69,501		15,752		17,618		12,219		23,912
Purchase obligations		882,858		631,609		216,337		34,411		501
Total		3,431,852		799,708		745,963		1,853,424		32,757

(1) Includes fixed-rate interest only.

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The above table includes approximately $207.7 million of total contractual obligations pertaining to the manufacturing operations located in Milledgeville, Georgia, Rayong, Thailand, and Red Oak, Texas, that, subsequent to the closing of these transactions in May, are no longer contractual obligations of the Company.  Of the $207.7 million total contractual obligations, approximately $183.1 million represented purchase obligations, of which approximately 78% were expected to be paid in less than one year.  The majority of the remaining $24.6 million contractual obligations associated with these divestitures pertained to operating leases.  The above table excludes unrecognized tax benefits of $11.8 million as of March 31, 2021, since we cannot predict with reasonable certainty the timing of cash settlements with the respective taxing authorities.  

In addition to the financial obligations detailed in the table above, we also had obligations related to our benefit plans at March 31, 2021, as detailed in the following table. Our other postretirement benefits are not required to be funded in advance, so benefit payments are paid as they are incurred. Our expected net contributions and payments are included in the table below:

	Pension Benefits		Other Postretirement Benefits
	(in thousands)
Projected benefit obligation at March 31, 2021	$	2,230,248	$	4,924
Plan assets at March 31, 2021		1,853,963		—
Projected contributions by fiscal year
2022		1,597		3,375
2023		1,284		169
2024		1,273		161
2025		1,264		153
2026		1,242		143
Total 2022 - 2026	$	6,660	$	4,001

Current plan documents reserve our right to amend or terminate the plans at any time, subject to applicable collective bargaining requirements for represented employees.

CRITICAL ACCOUNTING POLICIES AND ESTIMATES

Critical accounting policies are those accounting policies that can have a significant impact on the presentation of our financial condition and results of operations, and that require the use of complex and subjective estimates based upon past experience and management's judgment. Because of the uncertainty inherent in such estimates, actual results may differ from these estimates. Below are those policies applied in preparing our consolidated financial statements that management believes are the most dependent on the application of estimates and assumptions. For additional accounting policies, refer to Note 2 to the accompanying consolidated financial statements.

Revenue Recognition and Contract Balances

Our accounting policy regarding revenue recognition is disclosed in Note 2 to the consolidated financial statements.  As described in Note 2, for certain contracts and performance obligations, we are required to exercise judgment when developing assumptions regarding expected total costs to fulfill performance obligations, variable consideration, and the standalone selling price of a performance obligation.  These assumptions are most significant within the Aerospace Structures business segment because the size and long-term nature of our contracts with customers.  Specifically, assumptions regarding the total costs require significant judgment with regard to materials, labor, and overhead costs that are affected by our ability to achieve technical requirements and schedule requirements, as well as our estimation of internal and subcontractor performance projections, anticipated volume, asset utilization, labor agreements, and inflation trends.  We continually review and update our assumptions based on market trends and program performance. When we satisfy a performance obligation and recognize revenue over time, material changes in assumptions may result in positive or negative cumulative catch-up adjustments related to revenues previously recognized or, in some cases, forward loss contract reserves.

Goodwill and Intangible Assets

Refer to Note 2 and Note 7 for details on our goodwill and intangible asset accounting policies.  As disclosed in Note 7, as of March 31, 2021, Aerospace Structures had goodwill of $871.4 million which was fully impaired during fiscal year 2018.  The goodwill of one of the reporting units within Systems & Support had goodwill of $66.1 million which was fully impaired during fiscal year 2020.  No reporting units have goodwill with a material carrying value that is at risk of impairment as of March 31, 2021.

We review identified intangible assets with definite lives and subject to amortization for impairment whenever events or changes in circumstances indicate that the related carrying amounts may not be recoverable. Determining whether an impairment loss has occurred requires the use of our internal forecast to estimate future cash flows and the useful life over which these cash flows will occur.  As disclosed in Note 2, in May 2020, we concluded that the planned divestitures of our composites manufacturing operations located in Milledgeville, Georgia and Rayong, Thailand, represented a significant change in the manner in which the related asset group was expected to be used and that the asset group therefore needed to be tested for recoverability and

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impairment.  We applied a discount rate of 15.0% to the estimated future excess earnings and cash flows of the asset group in order to estimate the fair value of the asset group as of the measurement date and recognized a total noncash impairment charge of $252.4 million, primarily allocated to definite-lived intangible assets.

Postretirement Plans

Certain of our current and former employees participate in defined benefit pension and other postretirement defined benefit plans (collectively, referred to as “defined benefit plans”) in the United States, Canada, and the United Kingdom, which we sponsor. The determination of projected benefit obligations and the recognition of expenses related to defined benefit pension plans are dependent on various assumptions. The most significant of these assumptions are the discount rates and the long-term expected rates of return on plan assets. Actual results that differ from our assumptions are accumulated and amortized for each plan to the extent required over the estimated future life expectancy of plan participants.

Significant Assumptions

We develop assumptions using relevant experience, in conjunction with market-related data for each plan. Assumptions are reviewed annually with third party consultants and adjusted as appropriate. Refer to Note 15 for details regarding the assumptions used to estimate projected benefit obligations and net periodic benefit cost as they pertain to our defined benefit pension plans.  

Expected Return on Plan Assets

We determine our expected return on plan assets by evaluating both historical returns and estimates of future returns. Specifically, we consider the plan’s actual historical annual return on assets and historical broad market returns over long-term time frames based on our strategic allocation, which is detailed in Note 15. Future returns are based on independent estimates of long-term asset class returns. Based on this approach, the weighted average long-term expected annual rate of return on assets was estimated at 7.94% for fiscal years 2021 and 2020.

Discount Rate

The discount rate is used to calculate the present value of expected future benefit payments at the measurement date. A decrease in the discount rate increases the present value of benefit obligations and generally decreases pension expense. The discount rate assumption is based on current investment yields of high-quality fixed income investments during the retirement benefits maturity period. The pension discount rate is determined by considering an interest rate yield curve comprising AAA/AA bonds, with maturities between zero and thirty years, developed by the plan’s actuaries. Annual benefit payments are then discounted to present value using this yield curve to develop a single discount rate matching the plan’s characteristics.  The discount rate assumption will change from measurement date to measurement date as market yields on high quality corporate bonds change.

Sensitivity Analysis

Pension Expense

A 25 basis point change in each of the long-term expected rate of return on plan assets and discount rate would have the following effect on the combined U.S. defined benefit pension plans’ pension income for the next 12 months:

	(Decrease)/Increase in Pension Income
	25 Basis Point Increase			25 Basis Point Decrease
	(In thousands)
Expected long-term rate of return on plan assets	$	(4,218	)	$	4,218
Discount rate	$	(586	)	$	707

Projected Benefit Obligation

Funded status is derived by subtracting the respective year-end values of the projected benefit obligations (“PBO”) from the fair value of plan assets. The sensitivity of the PBO to changes in the discount rate varies depending on the magnitude and direction of the change in the discount rate. Refer to Note 12 for a quantitative sensitivity analysis for the PBO.

Income Tax

We follow ASC 740, Income Taxes, which prescribes a recognition threshold and measurement attribute criteria for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return, as well as guidance on derecognition, classification, interest and penalties, accounting in interim periods, disclosure and transition.

39

We recognize deferred tax assets and liabilities based on the differences between the financial statement basis and the tax basis of assets, liabilities, net operating losses and tax carryforwards. A valuation allowance is required to be recognized to reduce the recorded deferred tax asset to the amount that will more likely than not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income by jurisdiction during the periods in which those temporary differences become deductible or when carryforwards can be utilized. We consider the scheduled reversal of deferred tax liabilities, projected future taxable income and tax planning strategies in this assessment. As of March 31, 2021, we have a valuation allowance against substantially all of our net deferred tax assets given the insufficient positive evidence to support the realization of our deferred tax assets.  A reduction in the valuation allowance could result in a significant decrease in income tax expense in the period that the reduction is recorded.  However, the exact timing and amount of the reduction in our valuation allowance are unknown at this time and will be subject to the earnings level we achieve as well as our projected income in future periods.

Recently Issued Accounting Pronouncements

Refer to Note 2 for disclosure of the effects of recently issued accounting guidance.

Item 7A.  Quantitative and Qualitative Disclosures About Market Risk

Commodity Price Risk and Inflation Risk

Some contracts with our suppliers for raw materials, component parts and other goods are short-term contracts, which are subject to termination on a relatively short-term basis. The prices of our raw materials and component parts fluctuate depending on market conditions, and substantial increases in prices, whether due to significant inflationary pressures or other market factors, could increase our operating costs, which, as a result of our fixed-price contracts, we may not be able to recoup through increases in the prices of our products. We generally do not employ forward contracts or other financial instruments to hedge commodity price risk, although we continue to review a full range of business options focused on strategic risk management for all material commodities.

Any failure by our suppliers to provide acceptable raw materials, components, kits or subassemblies could adversely affect our production schedules and contract profitability. We assess qualification of suppliers and continually monitor them to control risk associated with such supply base reliance.

To a lesser extent, we also are exposed to fluctuations in the prices of certain utilities and services, such as electricity, natural gas, chemicals and freight. We utilize a range of long-term agreements to minimize procurement expense and supply risk in these areas, and we strive to minimize the effects of inflation through cost containment, productivity improvements, and, where possible, price increases.  We do not believe that inflation has had a material effect on our business, financial condition, or results of operations to date..

Foreign Exchange Risk

In addition, even when revenues and expenses are matched, we must translate foreign denominated results of operations, assets and liabilities for our foreign subsidiaries to U.S. dollars in our consolidated financial statements. Consequently, increases and decreases in the value of the U.S. dollar as compared with the respective foreign currencies will affect our reported results of operations and the value of our assets and liabilities on our consolidated balance sheets, even if our results of operations or the value of those assets and liabilities has not changed in its original currency. These transactions could significantly affect the comparability of our results between financial periods and/or result in significant changes to the carrying value of our assets, liabilities and stockholders' equity.

We are subject to foreign currency exchange rate risk relating to receipts from customers and payments to suppliers in foreign currencies. We use foreign currency forward contracts to hedge the price risk associated with forecasted foreign denominated payments related to our ongoing business. Foreign currency forward contracts are sensitive to changes in foreign currency exchange rates. At March 31, 2021, a 10% change in the exchange rate in our portfolio of foreign currency contracts would not have material impact on our unrealized gains. Consistent with the use of these contracts to neutralize the effect of exchange rate fluctuations, such unrealized losses or gains would be offset by corresponding gains or losses, respectively, in the remeasurement of the underlying transactions being hedged. When taken together, these forward currency contracts and the offsetting underlying commitments do not create material market risk.

40

Interest Rate Risk

Our primary exposure to market risk consists of changes in interest rates on borrowings. An increase in interest rates would adversely affect our operating results and the cash flow available after debt service to fund operations and expansion. In addition, an increase in interest rates would adversely affect our ability to pay dividends on our common stock, if permitted to do so under certain of our debt arrangements, including the Amended Credit Agreement. We manage exposure to interest rate fluctuations by optimizing the use of fixed and variable rate debt. As of March 31, 2021, approximately 100% of our debt was fixed-rate debt. Our financing policy states that we generally maintain between 50% and 75% of our debt as fixed-rate debt on a fully leveraged basis. The information below summarizes our market risks associated with debt obligations and should be read in conjunction with Note 10 of the notes to the accompanying consolidated financial statements.

The following table presents principal cash flows and the related interest rates. Fixed interest rates disclosed represent the weighted average rate as of March 31, 2021. Variable interest rates disclosed fluctuate with the LIBOR, federal funds rates, and other weekly rates and represent the weighted average rate at March 31, 2021.

Expected Years of Maturity

	Next 12 Months			13 - 24 Months			25 - 36 Months			37 - 48 Months			49 - 60 Months			Thereafter			Total
Fixed rate cash flows (in thousands)	$	5,972		$	239,883		$	2,790		$	1,226,364		$	500,781		$	6,531		$	1,982,321
Weighted average interest rate (%)		7.40	%		7.32	%		7.70	%		5.77	%		5.88	%		7.33	%
Variable rate cash flows (in thousands)	$	—		$	—		$	—		$	—		$	—		$	—
Weighted average interest rate (%)		—	%		—	%		—	%		—	%		—	%		—	%

There are no other significant market risk exposures.

41

Item 8.  Financial Statements and Supplementary Data

Report of Independent Registered Public Accounting Firm

To the Board of Directors and Stockholders of Triumph Group, Inc.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Triumph Group, Inc. (the Company) as of March 31, 2021 and 2020, the related consolidated statements of operations, comprehensive loss, stockholders' deficit and cash flows for each of the three years in the period ended March 31, 2021, and the related notes and financial statement schedule listed in the Index at Item 15(a) (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company at March 31, 2021 and 2020, and the results of its operations and its cash flows for each of the three years in the period ended March 31, 2021, in conformity with U.S. generally accepted accounting principles.

We also have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company’s internal control over financial reporting as of March 31, 2021, based on criteria established in Internal Control – Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) and our report dated May 20, 2021, expressed an unqualified opinion thereon.

Change in Accounting Principle

As discussed in Note 1 to the consolidated financial statements, the Company changed its method of calculating the expected return on the fixed income assets held within the plan assets of its qualified U.S. defined benefit plan during the year ended March 31, 2021.

Basis for Opinion

These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company's financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures include examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matters

The critical audit matters communicated below are matters arising from the current period audit of the financial statements that were communicated or required to be communicated to the audit committee and that: (1) relate to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matters below, providing separate opinions on the critical audit matters or on the accounts or disclosures to which they relate.

Revenue Recognition for Performance Obligations Satisfied Over Time

Description of the Matter

As described in Notes 2 and 4 of the consolidated financial statements, the Company’s Aerospace Structures reportable segment recognizes revenue for performance obligations that are satisfied over time using an input method with revenue recognized proportionately as costs are incurred relative to the total expected costs to satisfy the performance obligation (“estimate-at-completion”). This method of revenue recognition requires management to continuously update estimate-at-completion costs, changes to which affect the amount of profit and loss recognized each period. During fiscal year 2021, approximately $747 million of the revenue for Aerospace Structures represent revenues from performance obligations that have been satisfied over time.

Auditing the revenue recognition for performance obligations satisfied over time within the Aerospace Structures reportable segment, including its estimate-at-completion analyses, was especially challenging due to the significant judgment involved in evaluating the key assumptions, including materials, labor and overhead costs, made by management in its estimates of the total expected costs to satisfy the performance obligations. The estimate-at-completion analyses and resultant forecasted profit or loss of each performance obligation are sensitive to assumptions surrounding the Company’s ability to achieve the technical requirements, schedule requirements, internal and subcontractor performance projections, anticipated business volume, anticipated asset utilization, and anticipated labor agreements, as well as the accuracy of estimated inflation trends, each of which can materially change the key cost assumptions.

42

How We Addressed the Matter in Our Audit We obtained an understanding, evaluated the design and tested the operating effectiveness of controls over the Company’s process to recognize revenue for performance obligations that are satisfied over time within the Aerospace Structures reportable segment.  In particular, we tested controls over management’s review of the key assumptions in the estimate-at-completion analyses, which are describe above.  We also tested management’s controls over the completeness and accuracy of the data used in the estimate-at-completion analyses. To test the recognition of revenue for performance obligations that are satisfied over time within the Aerospace Structures reportable segment, our audit procedures included, among others, evaluating the key assumptions used to develop the estimate-at-completion analyses and the completeness and accuracy of the underlying data used in management’s calculations.  For example, we compared estimated costs to satisfy performance obligations in the estimate-at-completion analyses to historical results and source documentation including supplier agreements, current and projected labor rates, expected inflation rates, as well as overhead costs including rent expense and depreciation of long-lived assets. We recalculated the revenue recognized and resulting profit or loss based on actual costs and estimate-at-completion assumptions. When testing the significant assumptions, we involved our engineering specialists to assist in evaluating key judgments including cost projections related to management’s determination of estimate-at-completion costs.  In addition, we assessed the accuracy of the Company's historical estimates by comparing them to actual costs incurred. When there was a significant change in estimate, we inspected underlying evidence for the reason for the change in the estimate and the timing of the change in estimate.

Realizability of Deferred Tax Assets

Description of the Matter

As described in Note 12 of the consolidated financial statements, at March 31, 2021 the Company had deferred tax assets for deductible temporary differences and tax attributes of $56 million (net of a $513 million valuation allowance). Deferred tax assets are reduced by a valuation allowance if, based upon the weight of all available evidence, it is more likely than not that some portion, or all, of the deferred tax assets will not be realized. Auditing the Company’s analysis of the realizability of its deferred tax assets required complex auditor judgment because the amounts are material to the financial statements and the assessment process involves significant judgment to apply changes in the tax law, determine the future reversal pattern of existing taxable temporary differences and other assumptions of future taxable income that may be affected by future market or economic conditions.

How We Addressed the Matter in Our Audit

We obtained an understanding, evaluated the design, and tested the operating effectiveness of controls that address the risks of material misstatement relating to the realizability of deferred tax assets.  This included controls over management’s evaluation and application of the effects of changes in the tax law and the scheduling of the future reversal pattern of existing taxable temporary differences that have been identified as a source of future taxable income. To test the Company’s assessment of the realizability of deferred tax assets and the resulting valuation allowance, our audit procedures included, among others, testing the Company’s calculation of future taxable income from the reversal of existing temporary taxable differences and evaluating the scheduling of the reversal patterns. In addition, we compared taxable income in prior carryback years, if any, to the Company’s income tax returns; considered the feasibility of tax planning strategies; and, evaluated projected future taxable income exclusive of reversing temporary differences and carryforwards. We involved our tax professionals to assist in evaluating the application of tax law, including any changes in the tax law, in the Company’s consideration of the sources of future taxable income.

43

Defined Benefit Pension Obligations

Description of the Matter

At March 31, 2021, the Company’s aggregate defined benefit pension obligation was $2.2 billion and the net periodic benefit income was $38 million.  As described in Note 15 of the consolidated financial statements, the Company updates the estimates used to measure the defined benefit pension obligation and plan assets in the fourth quarter and upon a remeasurement event to reflect the actual return on plan assets and updated actuarial assumptions. Auditing the defined benefit pension obligations and the related net periodic benefit income required complex auditor judgment and technical expertise due to the highly judgmental nature of the actuarial assumptions (e.g., discount rate, mortality rate, expected return on plan assets) used in the measurement process.  These assumptions had a significant effect on the projected benefit obligation and the net periodic benefit income.

How We Addressed the Matter in Our Audit

We obtained an understanding, evaluated the design and tested the operating effectiveness of controls over management’s determination of the defined benefit pension obligation calculations, the significant actuarial assumptions described above and the data inputs provided to the Company’s actuarial specialists. To test the defined benefit pension benefit obligation, and the related net periodic benefit income, our audit procedures included, among others, evaluating the methodology used, the significant actuarial assumptions described above, the underlying data used by management and its actuaries and the appropriateness of management’s judgments in applying the authoritative accounting literature.  We compared the actuarial assumptions used by management to historical trends and evaluated the change in the defined benefit pension from prior year resulting from the change in service cost, interest cost, benefit payments, actuarial gains and losses, participant contributions, special termination benefits and plan amendments. In addition, we involved our actuarial specialists to assist in evaluating management’s methodology for determining the actuarial assumptions. For example, we evaluated management’s methodology for determining the discount rate that reflects the maturity and duration of the benefit payments and is used to measure the defined benefit pension obligation.  As part of this assessment, we compared the projected defined benefit pension obligation cash flows to prior year amounts and compared the current year benefits paid to the prior year projected cash flows.  To evaluate the mortality rate, we assessed whether the information is consistent with publicly available information, and whether any market data adjusted for entity-specific adjustments were applied. We also tested the completeness and accuracy of the underlying data, including the participant data provided to the Company’s actuarial specialists.  Lastly, to evaluate the expected return on plan assets, we assessed whether management’s assumptions were consistent with a range of returns for a portfolio of comparative investments.

We have served as the Company’s auditor since 1993.

/s/ Ernst & Young LLP

Philadelphia, Pennsylvania

May 20, 2021

44

TRIUMPH GROUP, INC.

Consolidated Balance Sheets

(Dollars in thousands, except per share data)

	March 31,
	2021			2020
ASSETS
Current assets:
Cash and cash equivalents	$	589,882		$	485,463
Trade and other receivables, less allowance for credit losses    of $8,095 and $4,293		194,066			359,487
Contract assets		134,638			244,417
Inventory, net		400,366			452,976
Prepaid expenses and other current assets		19,206			19,289
Assets held for sale		216,276			—
Total current assets	$	1,554,434			1,561,632
Property and equipment, net		211,369			418,141
Goodwill		521,638			513,527
Intangible assets, net		102,453			381,968
Other, net		61,041			105,065
Total assets	$	2,450,935		$	2,980,333
LIABILITIES AND STOCKHOLDERS' DEFICIT
Current liabilities:
Current portion of long-term debt	$	5,247		$	7,336
Accounts payable		179,473			457,694
Contract liabilities		204,379			295,320
Accrued expenses		271,160			227,403
Liabilities related to assets held for sale		58,108			—
Total current liabilities	$	718,367			987,753
Long-term debt, less current portion		1,952,296			1,800,171
Accrued pension and other postretirement benefits		384,256			660,065
Deferred income taxes		7,491			7,439
Other noncurrent liabilities		207,378			306,169
Stockholders' deficit:
Common stock, $.001 par value, 100,000,000 shares authorized, 64,488,674    and 52,460,920 shares issued; 64,185,001 and 51,858,089    shares outstanding		64			52
Capital in excess of par value		978,272			804,830
Treasury stock, at cost, 303,673 and 602,831 shares		(12,606	)		(36,217	)
Accumulated other comprehensive loss		(530,192	)		(746,448	)
Accumulated deficit		(1,254,391	)		(803,481	)
Total stockholders' deficit		(818,853	)		(781,264	)
Total liabilities and stockholders' deficit	$	2,450,935		$	2,980,333

SEE NOTES TO CONSOLIDATED FINANCIAL STATEMENTS.

45

TRIUMPH GROUP, INC.

Consolidated Statements of Operations

(In thousands, except per share data)

	Year ended March 31,
	2021			2020			2019
Net sales	$	1,869,719		$	2,900,117		$	3,364,930
Operating costs and expenses:
Cost of sales (exclusive of depreciation shown separately below)		1,476,266			2,307,393			2,924,920
Selling, general and administrative		215,962			257,529			298,386
Depreciation and amortization		93,334			138,168			149,904
Legal judgment gain, net of expenses		—			(9,257	)		—
Impairment of long-lived assets		252,382			—			—
Impairment of goodwill		—			66,121			—
Restructuring		53,224			25,340			31,098
Loss on sale of assets and businesses		104,702			56,916			235,301
		2,195,870			2,842,210			3,639,609
Operating (loss) income		(326,151	)		57,907			(274,679	)
Non-service defined benefit income		(49,519	)		(40,587	)		(56,726	)
Interest expense and other, net		171,397			122,129			114,619
Loss from continuing operations before income taxes		(448,029	)		(23,635	)		(332,572	)
Income tax expense (benefit)		2,881			5,798			(5,426	)
Net loss	$	(450,910	)	$	(29,433	)	$	(327,146	)
Loss per share—basic:
Net loss	$	(8.55	)	$	(0.58	)	$	(6.58	)
Weighted average common shares outstanding—basic		52,739			50,494			49,698
Loss per share—diluted:
Net loss	$	(8.55	)	$	(0.58	)	$	(6.58	)
Weighted average common shares outstanding—diluted		52,739			50,494			49,698

SEE NOTES TO CONSOLIDATED FINANCIAL STATEMENTS.

46

TRIUMPH GROUP, INC.

Consolidated Statements of Comprehensive Loss

(in thousands)

	Year ended March 31,
	2021			2020			2019
Net loss	$	(450,910	)	$	(29,433	)	$	(327,146	)
Other comprehensive income (loss):
Foreign currency translation adjustment		19,884			(13,439	)		10,077
Defined benefit pension plans and other postretirement benefits:
Amounts arising during the period - net of tax (expense) benefit
Prior service credit (cost), net of taxes of $0, $0, and $0, respectively		—			94,182			(1,139	)
Actuarial gain (loss), net of taxes of $0, $0, and $0, respectively		168,701			(303,017	)		(120,161	)
Reclassification to net loss - net of expense (benefit)
Amortization of net loss, net of taxes of $0, $0, and $(656), respectively		26,483			49,290			6,314
Recognized prior service credits, net of taxes of $0, $0, and $0, respectively		(4,130	)		(54,280	)		(8,274	)
Total defined benefit pension plans and other postretirement benefits, net    of taxes		191,054			(213,825	)		(123,260	)
Cash flow hedges:
Unrealized gain (loss) arising during the period, net of tax benefit of $0, $0, and $(228), respectively		5,891			(1,611	)		30
Reclassification of loss included in net earnings, net of tax expense of $0, $0, and $228, respectively		(573	)		(1,562	)		(1,282	)
Net unrealized gain (loss) on cash flow hedges, net of tax		5,318			(3,173	)		(1,252	)
Total other comprehensive income (loss)		216,256			(230,437	)		(114,435	)
Total comprehensive loss	$	(234,654	)	$	(259,870	)	$	(441,581	)

SEE NOTES TO CONSOLIDATED FINANCIAL STATEMENTS.

47

TRIUMPH GROUP, INC.

Consolidated Statements of Stockholders' Equity (Deficit)

(Dollars in thousands)

	Outstanding Shares			Common Stock All Classes		Capital in Excess of Par Value			Treasury Stock			Accumulated Other Comprehensive Loss			Retained Earnings (Accumulated Deficit)			Total
March 31, 2018		49,669,848		$	51	$	851,280		$	(179,082	)	$	(401,576	)	$	179,861		$	450,534
Net loss		—			—		—			—			—			(327,146	)		(327,146	)
Adoption of ASC 606		—			—		—			—			—			(585,015	)		(585,015	)
Foreign currency translation    adjustment		—			—		—			—			10,077			—			10,077
Pension liability adjustment, net of    income taxes of ($288)		—			—		—			—			(123,260	)		—			(123,260	)
Change in fair value of foreign currency    hedges, net of income taxes of $11		—			—		—			—			(1,252	)		—			(1,252	)
Cash dividends ($0.16 per share)		—			—		—			—			—			(7,971	)		(7,971	)
Share-based compensation		186,572			—		(1,448	)		11,707			—			—			10,259
Repurchase of restricted shares for    minimum tax obligation		(42,146	)		—		—			(860	)		—			—			(860	)
Employee stock purchase plan		72,994			—		(3,354	)		4,675			—			—			1,321
Other		—			1		21,067			4,406			—			(25,474	)		—
March 31, 2019		49,887,268			52		867,545			(159,154	)		(516,011	)		(765,745	)		(573,313	)
Net loss		—			—		—			—			—			(29,433	)		(29,433	)
Adoption of ASC 842		—			—		—			—			—			(225	)		(225	)
Foreign currency translation    adjustment		—			—		—			—			(13,439	)		—			(13,439	)
Pension liability adjustment, net of    income taxes of ($656)		—			—		—			—			(213,825	)		—			(213,825	)
Change in fair value of foreign currency    hedges, net of income taxes of $228		—			—		—			—			(3,173	)		—			(3,173	)
Cash dividends ($0.16 per share)		—			—		—						—			(8,078	)		(8,078	)
Share-based compensation		264,658			—		(5,508	)		16,222			—			—			10,714
Repurchase of restricted shares for    minimum tax obligation		(69,601	)		—		—			(1,442	)		—			—			(1,442	)
Employee stock purchase plan		45,061			—		(1,811	)		2,761			—			—			950
Contribution of treasury shares to    pension plan		1,730,703			—		(55,396	)		105,396			—			—			50,000
March 31, 2020		51,858,089			52		804,830			(36,217	)	$	(746,448	)		(803,481	)		(781,264	)
Net loss		—			—		—			—			—			(450,910	)		(450,910	)
Foreign currency translation    adjustment		—			—		—			—			19,884			—			19,884
Pension liability adjustment, net of    income taxes of $0		—			—		—			—			191,054			—			191,054
Change in fair value of foreign currency    hedges, net of income taxes of $0		—			—		—			—			5,318			—			5,318
Share-based compensation		288,350			—		(6,250	)		18,695			—			—			12,445
Repurchase of restricted shares for    minimum tax obligation		(99,082	)		—		—			(1,285	)		—			—			(1,285	)
Employee stock purchase plan		109,890			—		(5,344	)		6,201			—			—			857
Contribution of common stock to    pension plan, net of issuance costs		2,849,002			3		39,662			—			—			—			39,665
Issuance of common stock - at the    market offering, net of issuance    costs		9,178,752			9		145,374			—			—			—			145,383
March 31, 2021		64,185,001		$	64	$	978,272		$	(12,606	)	$	(530,192	)	$	(1,254,391	)	$	(818,853	)

SEE NOTES TO CONSOLIDATED FINANCIAL STATEMENTS.

48

TRIUMPH GROUP, INC.

Consolidated Statements of Cash Flows

(Dollars in thousands)

	Fiscal Year Ended March 31
	2021			2020			2019
Operating Activities
Net loss	$	(450,910	)	$	(29,433	)	$	(327,146	)
Adjustments to reconcile net loss to net cash (used in) provided by    operating activities:
Depreciation and amortization		93,334			138,168			149,904
Impairment of long-lived assets and goodwill		252,382			66,121			—
Amortization of acquired contract liability		(38,564	)		(75,286	)		(67,314	)
Loss on sale of assets and businesses		104,702			56,916			235,301
Curtailments and special termination benefits gain, net		—			14,293			4,032
Other amortization included in interest expense		23,759			11,157			8,770
Provision for (recovery of) credit losses		4,853			1,554			(495	)
(Benefit) provision for deferred income taxes		(176	)		2,823			(7,939	)
Share-based compensation		12,701			11,062			10,259
Changes in other assets and liabilities, excluding the effects of    acquisitions and divestitures:
Trade and other receivables		126,294			5,001			(89,728	)
Contract assets		46,841			50,440			65,191
Inventories		35,412			(48,802	)		(15,930	)
Prepaid expenses and other current assets		(310	)		16,376			(3,144	)
Accounts payable, accrued expenses, and contract liabilities		(330,992	)		(61,338	)		(71,767	)
Accrued pension and other postretirement benefits		(51,692	)		(66,519	)		(74,532	)
Other, net		(753	)		4,133			10,118
Net cash (used in) provided by operating activities		(173,119	)		96,666			(174,420	)
Investing Activities
Capital expenditures		(25,178	)		(39,834	)		(47,099	)
Proceeds from sale of assets and businesses		15,888			47,229			247,647
Net cash (used in) provided by investing activities		(9,290	)		7,395			200,548
Financing Activities
Net (decrease) increase in revolving credit facility		(400,000	)		185,000			102,113
Proceeds from issuance of long-term debt		713,900			585,580			54,600
Retirement of debt and finance lease obligations		(160,035	)		(449,650	)		(113,425	)
Payment of deferred financing costs		(20,716	)		(17,718	)		(1,982	)
Sales of common stock, net of issuance costs		145,383			—			—
Dividends paid		—			(8,078	)		(7,971	)
Repurchase of restricted shares for minimum tax obligations		(1,285	)		(1,442	)		(860	)
Net cash provided by financing activities		277,247			293,692			32,475
Effect of exchange rate changes on cash		9,581			(5,097	)		(1,615	)
Net change in cash and cash equivalents		104,419			392,656			56,988
Cash and cash equivalents at beginning of period		485,463			92,807			35,819
Cash and cash equivalents at end of period	$	589,882		$	485,463		$	92,807

SEE NOTES TO CONSOLIDATED FINANCIAL STATEMENTS.

49

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

1.    BACKGROUND AND BASIS OF PRESENTATION

Triumph Group, Inc. ("Triumph") is a Delaware corporation which, through its operating subsidiaries, designs, engineers, manufactures and sells products for the global aerospace OEMs of aircraft and aircraft components and repairs and overhauls aircraft components and accessories for commercial airline, air cargo carrier and military customers on a worldwide basis. Triumph and its subsidiaries (collectively, the "Company") are organized based on the products and services that they provide. The Company has two reportable segments: Systems & Support and Aerospace Structures.  

Systems & Support consists of the Company’s operations that provide integrated solutions, including design, development, and support of proprietary components, subsystems and systems, as well as production of complex assemblies using external designs.  Capabilities include hydraulic, mechanical and electromechanical actuation, power and control; a complete suite of aerospace gearbox solutions, including engine accessory gearboxes and helicopter transmissions; active and passive heat exchange technology; fuel pumps, fuel metering units and Full Authority Digital Electronic Control fuel systems; hydromechanical and electromechanical primary and secondary flight controls. Systems & Support also provides full life cycle solutions for commercial, regional and military aircraft. The Company’s extensive product and service offerings include full post-delivery value chain services that simplify the MRO supply chain. Through its ground support equipment maintenance, component MRO and post- production supply chain activities, Systems & Support is positioned to provide integrated planeside repair solutions globally. Capabilities include metallic and composite aircraft structures; nacelles; thrust reversers; interiors; auxiliary power units; and a wide variety of pneumatic, hydraulic, fuel and mechanical accessories.  Repair services generally involve the replacement and/or remanufacturing of parts, which is similar to the original manufacture of the part. The processes that the Company performs related to repair and overhaul services are essentially the repair of wear parts or replacement of parts that are beyond economic repair. The repair service generally involves remanufacturing a complete part or a component of a part.

Aerospace Structures consists of the Company’s operations that supply commercial, business, regional and military manufacturers with large metallic and composite structures and aircraft interior systems, including air ducting and thermal acoustic insulations systems. Products include wings, wing boxes, fuselage panels, horizontal and vertical tails, subassemblies such as floor grids, and aircraft interior systems, including air ducting and thermal acoustic insulations systems. Aerospace Structures also has the capability to engineer detailed structural designs in metal and composites. Capabilities include advanced composite and interior structures, joining processes such as welding, autoclave bonding, and conventional mechanical fasteners.

The accompanying consolidated financial statements include the accounts of Triumph and its wholly-owned subsidiaries. Intercompany accounts and transactions have been eliminated from the consolidated financial statements.

The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes.  Actual results could differ from those estimates.  

Standards Recently Implemented

Adoption of ASU 2016-13

In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.  This ASU modifies the measurement of expected credit losses of certain financial instruments. ASU 2016-13 is effective for annual periods beginning after December 15, 2019, and interim periods within those annual periods.  The amendments in this ASU should be applied on a modified retrospective basis to all periods presented. The Company adopted ASU 2016-13 effective April 1, 2020, and the impact on its consolidated financial statements was not significant.  

In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework – Changes to the Disclosure Requirements for Fair Value Measurement.  This ASU modifies the disclosure requirements for fair value measurements by removing, modifying or adding certain disclosures.  ASU 2018-13 is effective for annual periods beginning after December 15, 2019, and interim periods within those annual periods, with early adoption permitted.  The amendments on changes in unrealized gains and losses, the range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements, and the narrative description of measurement uncertainty should be applied prospectively for only the most recent interim or annual period presented in the initial fiscal year of adoption.  All other amendments should be applied retrospectively to all periods presented upon their effective date.  The Company adopted ASU 2018-13 effective April 1, 2020, and the adoption did not have a significant impact on its consolidated financial statement disclosures.

In August 2018, the FASB issued ASU 2018-14, Compensation—Retirement Benefits—Defined Benefit Plans—General (Subtopic 715-20): Disclosure Framework—Changes to the Disclosure Requirements for Defined Benefit Plans, which modifies the annual disclosure requirements for defined benefit pension plans and other postretirement plans.  ASU 2018-14 is effective for annual

50

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

periods ending after December 15, 2020, with early adoption permitted.  The amendments in this ASU should be applied on a retrospective basis to all periods presented.  The Company adopted ASU 2018-14 effective April 1, 2020, and the adoption did not have a significant impact on its consolidated financial statement disclosures.

Standards Issued Not Yet Implemented

In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes.  This ASU modifies ASC 740, Income Taxes to simplify the accounting for income taxes. ASU 2019-12 is effective for fiscal years beginning after December 15, 2020, with early adoption permitted. The Company will adopt and implement this ASU for its fiscal year beginning April 1, 2021. The adoption is not expected to have a material impact on the Company’s financial position or results of operations.

Impact of Change in Accounting Principle

Effective April 1, 2020, the Company changed its method of accounting for the determination of the market-related value of assets (“MRVA”) for a class of assets (fixed income securities) within the qualified U.S. defined benefit plan (the “Plan”) which is used in determining the expected return on asset component of net periodic benefit income.  This class of assets is composed solely of the fixed income securities asset class held in the portfolio for the Plan, which provides a natural hedge (liability-hedging assets) against the changes in the Plan’s liability due to changes in market interest rates. Refer to Note 15 for the Company’s fair value disclosure by asset classification.  The Company’s previous method of accounting was to calculate the MRVA for all the Plan’s assets recognizing investment gains and losses into the MRVA over a five-year period.  The Company has changed its method of accounting and elected to use the fair value of its fixed income assets, which represent approximately 44% of the Plan’s assets as of the effective date of the change in accounting principle, to determine the MRVA. This change in accounting principle is preferable as it results in an expected return on asset component of net periodic benefit income that more accurately reflects the changes in the fair values of the fixed income securities.  No change is being made to the accounting principle for the other classes of pension assets, which represent the remaining 56% of the pension asset portfolio for the Plan.  The gains and losses for these other plan assets will continue to be amortized into the MRVA over a five-year period.

The change in accounting principle requires retrospective application and prospective disclosure.  The Company applied the change effective April 1, 2020, and recorded a cumulative adjustment to equity as of the earliest period presented.  The tables below represent the impact of this change on the consolidated statements of operations (including earnings per share) and the consolidated statements of comprehensive loss for the periods presented below.  The change in accounting principle had no impact on the consolidated statements of cash flows for these periods.

The tables below represent the impact of the change in accounting principle on the consolidated statement of operations and the consolidated statements of comprehensive loss for the year ended March 31, 2021.

	Year Ended March 31, 2021
	As Reported (With Change)			Impact of Change			Without Change
Non-service defined benefit income	$	(49,519	)	$	(6,112	)	$	(43,407	)
Loss before income taxes		(448,029	)		6,112			(454,141	)
Income tax expense		2,881			-			2,881
Net loss	$	(450,910	)	$	6,112		$	(457,022	)
Net Loss per share - basic & diluted
Basic	$	(8.55	)	$	0.12		$	(8.67	)
Diluted	$	(8.55	)	$	0.12		$	(8.67	)
Defined benefit pension plans and other postretirement benefits:
Total defined benefit pension plans and other postretirement    benefits, net of taxes	$	191,054		$	(6,112	)		197,166
Total other comprehensive income	$	216,256		$	(6,112	)		222,368
Comprehensive loss	$	(234,654	)	$	-			(234,654	)

51

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

The table below represents the impact of the change in accounting principle on the consolidated balance sheet as of March 31, 2021.

Stockholders' deficit:	As Reported (With Change), March 31, 2021			Impact of Change			Without Change, March 31, 2021
Accumulated other comprehensive loss	$	(530,192	)	$	(33,132	)		(497,060	)
Accumulated deficit	$	(1,254,391	)	$	33,132			(1,287,523	)
Total stockholders' deficit	$	(818,853	)	$	-			(818,853	)

2.    SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Cash and Cash Equivalents

Cash equivalents consist of highly liquid investments with a maturity of three months or less at the time of purchase. Fair value of cash equivalents approximates carrying value.

Trade and Other Receivables, net

Trade and other receivables are recorded net of an allowance for expected credit losses. Trade and other receivables include amounts billed and currently due from customers and amounts retained by the customer pending contract completion. The Company performs ongoing credit evaluations of its customers and generally does not require collateral. The Company pools receivables that share underlying risk characteristics and records the allowance for expected credit losses based on a combination of prior experience, current economic conditions and management’s expectations of future economic conditions, and specific collectibility matters when they arise. The Company writes off balances against the allowance for expected credit losses when collectibility is deemed remote. The Company's trade and other receivables are exposed to credit risk; however, the risk is limited due to the diversity of the customer base. For the years ended March 31, 2021 and 2020, credit loss expense and write-offs were immaterial.  

Trade and other receivables, net composed of the following:

	March 31,
	2021			2020
Total trade receivables	$	192,888		$	314,007
Other receivables		9,273			49,773
Total trade and other receivables		202,161			363,780
Less: Allowance for credit losses		(8,095	)		(4,293	)
Total trade and other receivables, net	$	194,066		$	359,487

Goodwill and Intangible Assets

The Company accounts for goodwill and intangible assets in accordance with ASC 350, Intangibles—Goodwill and Other. Under ASC 350, goodwill and intangible assets with indefinite lives are not amortized; rather, they are tested for impairment on at least an annual basis. Intangible assets with finite lives are amortized over their useful lives.

The Company assesses whether goodwill impairment exists using both the qualitative and quantitative assessments. The qualitative assessment involves determining whether events or circumstances exist that indicate it is more likely than not that the fair value of a reporting unit is less than its carrying amount, including goodwill. If based on this qualitative assessment the Company determines it is not more likely than not that the fair value of a reporting unit is less than its carrying amount or if the Company elects not to perform a qualitative assessment, a quantitative assessment is performed as required by ASC 350 to determine whether a goodwill impairment exists at the reporting unit.

The quantitative test is used to compare the carrying amount of the reporting unit's assets to the fair value of the reporting unit. If the fair value exceeds the carrying value, no further evaluation is required, and no impairment loss is recognized. If the carrying amount exceeds the fair value, then an impairment loss occurs. The impairment is measured by using the amount by which the carrying value exceeds the fair value not to exceed the amount of recorded goodwill. The determination of the fair value of its reporting units is based, among other things, on estimates of future operating performance of the reporting unit being valued. The Company is required to complete an impairment test for goodwill and record any resulting impairment losses at least annually. Changes in market conditions, among other factors, may have an impact on these estimates and require interim impairment assessments.

When performing the quantitative impairment test, the Company's methodology includes the use of an income approach which discounts future net cash flows to their present value at a rate that reflects the Company's cost of capital, otherwise known as the discounted cash flow method ("DCF"). These estimated fair values are based on estimates of future cash flows of the businesses.

52

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

Factors affecting these future cash flows include the continued market acceptance of the products and services offered by the businesses, the development of new products and services by the businesses and the underlying cost of development, the future cost structure of the businesses and future technological changes. The Company also incorporates market multiples for comparable companies in determining the fair value of its reporting units. Any such impairment would be recognized in full in the reporting period in which it has been identified.  The fair value estimates resulting from the application of these methodologies are based on inputs classified within Level 3 of the fair value hierarchy, as described below.  

During the fourth quarter of the fiscal year ended March 31, 2021, the Company performed its annual goodwill impairment assessment for each of its reporting units with no impairment identified.

In fiscal 2020, at March 31, 2020, the Company identified indicators of impairment due to the decline in the Company’s share price as well as potential negative impacts due to the uncertainty of the impact of the COVID-19 pandemic.  As a result of these indicators, the Company performed an interim assessment of goodwill, which included using a combination of both market and income approaches to estimate the fair value of each reporting unit. The Company concluded that its Product Support reporting unit had a fair value that was lower than its carrying value by an amount that exceeded the remaining goodwill for the reporting unit. Therefore, the Company recorded a noncash impairment charge during the fiscal quarter ended March 31, 2020, of $66,121, which is presented on the consolidated statements of operations as “Impairment of goodwill” for the fiscal year ended March 31, 2020. The decline in fair value was the result of expected declines in revenues from MRO services and the uncertainty in the rate and timing of recovery and therefore the timing of associated earnings and cash flows.

Finite-lived intangible assets are amortized over their useful lives ranging from 7 to 30 years. The Company continually evaluates whether events or circumstances have occurred that would indicate that the remaining estimated useful lives of long-lived assets, including intangible assets, may warrant revision or that the remaining balance may not be recoverable. Long-lived assets are evaluated for indicators of impairment. When factors indicate that long-lived assets, including intangible assets, should be evaluated for possible impairment, an estimate of the related undiscounted cash flows over the remaining life of the long-lived assets, including intangible assets, is used to measure recoverability based on the primary asset of the asset group. Some of the more important factors management considers include the Company's financial performance relative to expected and historical performance, significant changes in the way the Company manages its operations, negative events that have occurred, and negative industry and economic trends. If the estimated undiscounted cash flows are less than the carrying amount, measurement of the impairment will be based on the difference between the carrying value and fair value of the asset group, generally determined based on the present value of expected future cash flows associated with the use of the asset.

As disclosed in Note 3, in May 2020, the Company’s Board of Directors committed to a plan (i) to sell its composites manufacturing operations located in Milledgeville, Georgia, and Rayong, Thailand, and (ii) to transfer the assets and certain liabilities associated with its Gulfstream G650 wing supply chain activities (as disclosed in Note 3, this transaction closed in August 2020). These planned divestitures represent the divestiture of certain assets and liabilities of an operating business within the Aerospace Structures segment that the Company has identified as an asset group pursuant to the provisions of ASC 360, Property, Plant, and Equipment. As a result, as of May 31, 2020, the Company concluded that the planned divestitures represented a significant change in the manner in which the related asset group was expected to be used, and that the asset group therefore needed to be tested for recoverability. The asset group primarily consists of working capital, fixed assets and definite-lived intangible assets. The Company first determined that the relevant long-lived asset group was not recoverable by comparing the undiscounted cash flows expected to be generated by the long-lived asset group to the carrying value of the asset group.  As a result, the Company estimated the fair value of the long-lived asset group and concluded that the asset group was impaired. The Company used a multi-period excess earnings approach to estimate the fair value of the long-lived asset group for purposes of testing the asset group for impairment.  This method estimates fair value based on the expected future excess earnings stream attributable to the asset group.  This method requires the use of several key assumptions, including revenue projections that consider historical and estimated future results, general economic and market conditions, as well as the impact of planned business and operational strategies. A discount rate of 15.0% was applied to the estimated future excess earnings and cash flows in order to estimate the fair value of the asset group as of the measurement date. The Company has determined that the lowest level of the inputs that are significant to the fair value measurement are unobservable inputs that fall within Level 3 of the fair value hierarchy.

In accordance with ASC 360, the Company allocated the resulting impairment to the specific long-lived assets within the asset group on a pro rata basis, except that the loss allocated to an individual long-lived asset of the group did not reduce the carrying amount of that asset below its estimated fair value.  As a result, the Company recognized a total noncash impairment charge of $252,382 in the first quarter, primarily allocated to definite-lived intangible assets, which is presented as “Impairment of long-lived assets” on the accompanying consolidated statements of operations.  In January 2021, the Company’s Board of Directors committed to a plan to sell its manufacturing operations located in Red Oak, Texas.  As a result of this decision and the resulting classification of this disposal group as held for sale, the Company fully impaired the remaining customer relationship intangible asset within the Aerospace Structures segment and recognized a noncash impairment charge of $6,696, which has been included in the impairment on the assets held for sale as disclosed in Note 3 and is presented within “Loss on sale of assets and businesses” on the accompanying consolidated statement of operations.

See below for the Company's accounting policy regarding fair value measurements and the definition of fair value levels.

53

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

Revenue Recognition and Contract Balances

The Company adopted ASC 606 on April 1, 2018.  The Company's revenue is principally from contracts with customers to provide design, development, manufacturing, and support services associated with specific customer programs. The Company regularly enters into long-term master supply agreements that establish general terms and conditions and may define specific program requirements. Many agreements include clauses that provide sole supplier status to the Company for the duration of the program’s life. Purchase orders (or authorizations to proceed) are issued pursuant to the master supply agreements. Additionally, a majority of the Company’s agreements with customers include options for future purchases. Such options primarily reduce the administrative effort of issuing subsequent purchase orders and do not represent material rights granted to customers. The Company generally enters into agreements directly with its customers and is the principal in all current contracts.

The identification of a contract with a customer for purposes of accounting and financial reporting requires an evaluation of the terms and conditions of agreements to determine whether presently enforceable rights and obligations exist. Management considers a number of factors when making this evaluation that include, but are not limited to, the nature and substance of the business exchange, the specific contractual terms and conditions, the promised products and services, the termination provisions in the contract, as well as the nature and execution of the customer’s ordering process and how the Company is authorized to perform work. Generally, presently enforceable rights and obligations are not created until a purchase order is issued by a customer for a specified number of units of product or services. Therefore, the issuance of a purchase order is generally the point at which a contract is identified for accounting and financial reporting purposes.

Management identifies the promises to the customer. Promises are generally explicitly stated in each contract, but management also evaluates whether any promises are implied based on the terms of the agreement, past business practice, or other facts and circumstances. Each promise is evaluated to determine if it is a performance obligation. A performance obligation is a promise in a contract to transfer a distinct good or service. The Company considers a number of factors when determining whether a promise is a distinct performance obligation, including whether the customer can benefit from the good or service on its own or together with other resources that are readily available to the customer, whether the Company provides a significant service of integrating goods or services to deliver a combined output to the customer, or whether the goods or services are highly interdependent. The Company’s performance obligations consist of a wide range of engineering design services and manufactured components, as well as spare parts and repairs for OEMs.

The transaction price for a contract reflects the consideration the Company expects to receive for fully satisfying the performance obligations in the contract. Typically, the transaction price consists solely of fixed consideration but may include variable consideration for contractual provisions such as unpriced contract modifications, cost-sharing provisions, and other receipts or payments to customers. The Company identifies and estimates variable consideration, typically at the most likely amount the Company expects to receive from its customers. Variable consideration is only included in the transaction price to the extent it is probable that a significant reversal of cumulative revenue recognized for the contract will not occur, or when the uncertainty associated with the variable consideration is resolved. The Company's contracts with customers generally require payment under normal commercial terms after delivery with payment typically required within 30 to 120 days of delivery. However, a subset of the Company’s current contracts includes significant financing components because the timing of the transfer of the underlying products and services under contract are at the customers’ discretion. For these contracts, the Company adjusts the transaction price to reflect the effects of the time value of money.

The Company generally is not subject to collecting sales tax and has made an accounting policy election to exclude from the transaction price any sales and other similar taxes collected from customers. As a result, any such collections are accounted for on a net basis.

The total transaction price is allocated to each of the identified performance obligations using the relative stand-alone selling price. The objective of the allocation is to reflect the consideration that the Company expects to receive in exchange for the products or services associated with each performance obligation. Stand-alone selling price is the price at which the Company would sell a promised good or service separately to a customer. Stand-alone selling prices are established at contract inception, and subsequent changes in transaction price are allocated on the same basis as at contract inception. When stand-alone selling prices for the Company’s products and services are not observable, the Company uses either the “Expected Cost Plus a Margin” or "Adjusted Market Assessment" approaches to estimate stand-alone selling price. Expected costs are typically derived from the available periodic forecast information.

Revenue is recognized when or as control of promised products or services transfers to a customer and is recognized at the amount allocated to each performance obligation associated with the transferred products or services. Service sales, principally representing repair, maintenance, and engineering activities are recognized over the contractual period or as services are rendered. Sales under long-term contracts with performance obligations satisfied over time are recognized using either an input or output method. The Company recognizes revenue over time as it performs on these contracts because of the continuous transfer of control to the customer as represented by contractual terms that entitle the Company to the reimbursement of costs plus a reasonable profit for work performed to manufacture products for which the Company has no alternate use or for work performed on a customer-owned asset.

54

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

With control transferring over time, revenue is recognized based on the extent of progress toward completion of the performance obligation. The Company generally uses the cost-to-cost input method of progress for its contracts because it best depicts the transfer of control to the customer that occurs as work progresses. Under the cost-to-cost method, the extent of progress toward completion is measured based on the proportion of costs incurred to date to the total estimated costs at completion of the performance obligation. The Company reviews its cost estimates on contracts on a periodic basis, or when circumstances change and warrant a modification to a previous estimate. Cost estimates are largely based on negotiated or estimated purchase contract terms, historical performance trends and other economic projections. Significant factors that influence these estimates include inflationary trends, technical and schedule risk, internal and subcontractor performance trends, business volume assumptions, asset utilization, and anticipated labor agreements.

Revenue and cost estimates are regularly monitored and revised based on changes in circumstances. Impacts from changes in estimates of net sales and cost of sales are recognized on a cumulative catch-up basis, which recognizes in the current period the cumulative effect of the changes on current and prior periods based on a performance obligation’s percentage of completion. Forward loss reserves for anticipated losses on long-term contracts are recorded in full when such losses become evident, to the extent required and are included in contract liabilities on the accompanying consolidated balance sheets. The Company believes that the accounting estimates and assumptions made by management are appropriate given the increased uncertainties surrounding the severity and duration of the impacts of the COVID-19 pandemic, however actual results could differ materially from those estimates.

For the fiscal year ended March 31, 2021, cumulative catch-up adjustments resulting from changes in contract values and estimated costs that arose during the fiscal year increased revenue and decreased operating loss, net loss, and loss per share by approximately $4,796, $12,332, $12,332, and $0.23, respectively. The cumulative catch-up adjustments to operating income for the fiscal year ended March 31, 2021, included gross favorable adjustments of approximately $55,180 and gross unfavorable adjustments of approximately $42,848.

For the fiscal year ended March 31, 2020, cumulative catch-up adjustments resulting from changes in estimates increased net sales,  operating loss, net loss and loss per share by approximately $12,011, ($22,844), ($22,844), and ($0.45), respectively. The cumulative catch-up adjustments to operating income for the fiscal year ended March 31, 2020, included gross favorable adjustments of approximately $43,405 and gross unfavorable adjustments of approximately $66,249.

For the fiscal year ended March 31, 2019, cumulative catch-up adjustments resulting from changes in estimates decreased operating loss, net loss and decreased loss per share by approximately ($68,694), ($68,694), and ($1.38), respectively. The cumulative catch-up adjustments to operating income for the fiscal year ended March 31, 2019, included gross favorable adjustments of approximately $46,074 and gross unfavorable adjustments of approximately $114,768. These cumulative catch-up adjustments do not include a noncash charge the Company recorded as a result of the adoption of ASU 2017-07 of $87,241 due to a change in estimate from a change in accounting principles, which is presented on the accompanying consolidated statements of operations within cost of sales.

Revenues for performance obligations that are not recognized over time are recognized at the point in time when control transfers to the customer. For performance obligations that are satisfied at a point in time, the Company evaluates the point in time when the customer can direct the use of and obtain the benefits from the products and services. Generally, the shipping terms determine the point in time when control transfers to customers. Shipping and handling activities are not considered performance obligations and related costs are included in cost of sales as incurred.

Differences in the timing of revenue recognition and contractual billing and payment terms result in the recognition contract assets and liabilities. Refer to Note 4 for further discussion.

In connection with several of prior acquisitions, the Company assumed existing long-term contracts. Based on review of these contracts at the acquisition date, the Company concluded that the terms of certain contracts were either more or less favorable than could be realized in market transactions as of the date of the acquisition. As a result, the Company recognized acquired contract liabilities, net of acquired contract assets as of the acquisition date of each respective acquisition, based on the present value of the difference between the contractual cash flows of the executory contracts and the estimated cash flows had the contracts been executed at the acquisition date. The liabilities principally relate to long-term contracts that were initially executed several years prior to the respective acquisition. The Company measured these net liabilities in the year they were acquired under the measurement provisions of ASC 820, Fair Value Measurement, which is based on the price to transfer the obligation to a market participant at the measurement date, assuming that the net liabilities will remain outstanding in the marketplace. The portion of the Company's revenue resulting from transactions other than contracts with customers pertains to the amortization of these acquired contract liabilities as the related contractual performance obligations are satisfied.  Adjustments to these liabilities due to significant changes in the total estimated costs of the contract are accounted for in a manner consistent with other loss contract reserves, with such adjustments recognized in cost of sales.

The balance of the liability as of March 31, 2021, is $43,888 and, based on the expected delivery schedule of the underlying contracts, the Company estimates annual amortization of the liability as follows: 2022 — $22,897; 2023 — $3,347; 2024 — $2,501; 2025 — $2,564; 2026 — $1,282; thereafter $11,296.

55

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

Leases

The Company leases office space, manufacturing facilities, land, vehicles, and equipment. The Company determines if an agreement is or contains a lease at the lease inception date and recognizes right-of-use assets (“ROU”) and lease liabilities at the lease commencement date. A ROU asset and corresponding lease liability are not recorded for leases with an initial term of 12 months or less (“short-term leases”).

ROU assets represent the Company's right to use an underlying asset during the lease term, and lease liabilities represent the Company's obligation to make lease payments arising from the lease. The determination of the length of lease terms is affected by options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option. The existence of significant economic incentive is the primary consideration when assessing whether the Company is reasonably certain of exercising an option in a lease. Both finance and operating lease ROU assets and liabilities are recognized at commencement date and measured as the present value of lease payments to be made over the lease term. As the interest rate implicit in the lease is not readily available for most of the Company's leases, the Company uses its estimated incremental borrowing rate in determining the present value of lease payments. The estimated incremental borrowing rate is derived from information available at the lease commencement date. The lease ROU asset recognized at commencement is adjusted for any lease payments related to initial direct costs, prepayments, and lease incentives.

For operating leases, lease expense is recognized on a straight-line basis over the lease term. For finance leases, lease expense comprises the amortization of the ROU assets recognized on a straight-line basis generally over the shorter of the lease term or the estimated useful life of the underlying asset and interest on the lease liability. Variable lease payments not dependent on a rate or index are recognized when the event, activity, or circumstance in the lease agreement upon which those payments are contingent is probable of occurring and are presented in the same line of the consolidated balance sheet as the rent expense arising from fixed payments. The Company has lease agreements with lease and non-lease components. Non-lease components are combined with the related lease components and accounted for as lease components for all classes of underlying assets.

Retirement Benefits

Defined benefit pension plans are recognized in the consolidated financial statements on an actuarial basis. A significant element in determining the Company's pension income (expense) is the expected long-term rate of return on plan assets. This expected return is an assumption as to the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the projected pension benefit obligation. The Company applies this assumed long-term rate of return to a calculated value of plan assets, which recognizes changes in the fair value of plan assets in a systematic manner over five years. This produces the expected return on plan assets that is included in pension income (expense). The difference between this expected return and the actual return on plan assets is deferred. The net deferral of past asset gains (losses) affects the calculated value of plan assets and, ultimately, future pension income (expense).

The Company periodically experiences events or makes changes to its benefit plans that result in curtailment or special charges. Curtailments are recognized when events occur that significantly reduce the expected years of future service of present employees or eliminates the benefits for a significant number of employees for some or all of their future service.

Curtailment losses are recognized when it is probable the curtailment will occur and the effects are reasonably estimable. Curtailment gains are recognized when the related employees are terminated or a plan amendment is adopted, whichever is applicable.

From time to time, the Company may enter into transactions that relieve it of primary responsibility for all or more than a minor portion of certain of its pension benefit obligations.  When these transactions are effected through an irrevocable action that relieves the Company of primary responsibility for its pension or other postretirement benefit obligations and eliminates significant risks related to the obligation and the related assets used to effect the transaction, they are considered settlements, as defined by ASC 715, Compensation – Retirement Benefits.  When a transaction meets the definition of a settlement, at the time of settlement the Company recognizes as a gain or loss the pro rata amount of the net gain or loss in accumulated other comprehensive income based on the proportion of the projected benefit obligation settled to the total projected benefit obligation.  

As required under ASC 715, the Company remeasures plan assets and obligations during an interim period whenever a significant event occurs that results in a material change in the net periodic pension cost. The determination of significance is based on judgment and consideration of events and circumstances impacting the pension costs.

At March 31 of each year, the Company determines the fair value of its pension plan assets as well as the discount rate to be used to calculate the present value of plan liabilities. The discount rate is an estimate of the interest rate at which the pension benefits could be effectively settled. In estimating the discount rate, the Company looks to rates of return on high-quality, fixed-income investments currently available and expected to be available during the period to maturity of the pension benefits. The Company uses a portfolio of fixed-income securities, which receive at least the second-highest rating given by a recognized ratings agency.

56

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

Fair Value Measurements

Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. When determining fair value measurements for assets and liabilities required to be recorded at fair value, the Company considers the principal or most advantageous market in which it would transact and also considers assumptions that market participants would use when pricing an asset or liability. The fair value hierarchy has three levels of inputs that may be used to measure fair value: Level 1—Unadjusted quoted prices in active markets for identical assets or liabilities; Level 2—Unadjusted quoted prices in active markets for similar assets or liabilities, or unadjusted quoted prices for identical or similar assets or liabilities in markets that are not active, or inputs other than quoted prices that are observable for the asset or liability; and Level 3—Unobservable inputs for the asset or liability. The Company has applied fair value measurements when measuring the impairment of assets held for sale (see Note 3), when measuring long-lived asset impairment in the current period (see above within the disclosure of the Company’s goodwill and intangible asset accounting policies), and to its pension and postretirement plan assets (see Note 15).

Income Taxes

The Company accounts for income taxes using the asset and liability method. The asset and liability method requires recognition of deferred tax assets and liabilities for expected future tax consequences of temporary differences that currently exist between tax bases and financial reporting bases of the Company's assets and liabilities. A valuation allowance is provided on deferred taxes if it is determined that it is more likely than not that the asset will not be realized.

Management judgment is required to determine the amount of benefit to be recognized in relation to an uncertain tax position. The Company uses a two-step process to evaluate tax positions. The first step requires an entity to determine whether it is more likely than not (greater than 50% chance) that the tax position will be sustained. The second step requires an entity to recognize in the financial statements the benefit of a tax position that meets the more-likely-than-not recognition criterion. The amounts ultimately paid upon resolution of issues raised by taxing authorities may differ materially from the amounts accrued and may materially impact the financial statements of the Company in future periods. The Company recognizes penalties and interest accrued related to income tax liabilities in the provision for income taxes on its consolidated statements of operations.

Supplemental Cash Flow Information

For the fiscal year ended March 31, 2021, the Company paid $2,297 for income taxes, net of income tax refunds received. For the fiscal year ended March 31, 2020, the Company paid $4,005 for income taxes, net of income tax refunds received.  For the fiscal year ended March 31, 2019, the Company received $4,701 as income tax refunds, net of tax paid.

3.    DIVESTED OPERATIONS AND ASSETS HELD FOR SALE

Assets Held for Sale

In May 2020, the Company’s Board of Directors committed to a plan to sell its composites manufacturing operations located in Milledgeville, Georgia and Rayong, Thailand.  In August 2020, the Company entered into a definitive agreement with the buyer of the composites manufacturing operations in Georgia and Thailand. In February 2021, the Company entered into a definitive agreement to sell its manufacturing operations in Red Oak, Texas, to the same buyer of the Milledgeville and Rayong composites manufacturing operations.  These transactions closed in May 2021. In the year ended March 31, 2021, the Company adjusted the carrying amount of its assets held for sale to its estimated fair value less cost to sell and recognized a loss $102,493 due to decreases in actual and expected performance of certain widebody programs within the disposal group that affected this estimate.  The impairment is presented on the accompanying consolidated statements of operations within loss on sale of assets and businesses.  To measure the amount of the impairment, the Company compared the carrying value of the assets and liabilities of the disposal group with their estimated fair value less cost to sell as of the balance sheet date.  The estimate of fair value is categorized as Level 2 within the fair value hierarchy.  The key assumptions used in the estimate of fair value is the negotiated sales price of the assets and the assumption of the disposal group’s liabilities.  As of March 31, 2021, the operating results of these related operations are included within the Aerospace Structures reportable segment, and the related assets and liabilities are classified as held for sale on the accompanying consolidating balance sheets.

57

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

Fiscal 2021 Divestitures

In August 2020, the Company completed the transfer of the assets and certain liabilities associated with its Gulfstream G650 wing supply chain activities for cash proceeds net of transaction costs of approximately $51,000. This transaction also resulted in the derecognition of approximately $18,157 in accrued warranties related to these activities.  The Company recognized a loss of approximately $819, which is presented on the accompanying consolidated statements of operations within loss on sale of assets and businesses. The operating results associated with the G650 wing supply chain activities were included within Aerospace Structures through the date of transfer.  

Fiscal 2020 Divestitures

In December 2019, the Company completed the sale of its manufacturing operations at its Nashville, Tennessee, facility for cash proceeds net of transaction costs of approximately $58,000, including approximately $7,000 allocated as a premium paid by the buyer in exchange for a specified performance guarantee.  The Company recognized a loss of approximately $64,000, which is presented on the accompanying consolidated statements of operations within loss on sale of assets and businesses.  The operating results of the Nashville manufacturing operations were included in Aerospace Structures through the date of divestiture.  Additionally, as part of the transaction, the Company agreed to transfer to the buyer, within 120 days from the date of closing, certain defined benefit pension assets and obligations of approximately $55,000 associated with the Nashville manufacturing operations.  In accordance with applicable defined benefit pension plan accounting guidance, the transfer was treated as a settlement for purposes of the Company’s consolidated financial statements and resulted in accelerated recognition of previously unrecognized actuarial losses.  The Company completed the transfer of the defined benefit pension assets and obligations in March 2020 and recognized a one-time settlement loss of approximately $28,000.

In September 2019, the Company completed the assignment of its E-2 Jets contract with Embraer for the manufacture of structural components for their program to AeroSpace Technologies of Korea Inc. ("ASTK").  As part of this transaction, the Company transferred certain assets and liabilities to ASTK and recognized a gain of approximately $10,000, which is presented on the accompanying consolidated statements of operations within loss on sale of assets and businesses.  The assets and liabilities transferred were included within Aerospace Structures through the date of divestiture.

Fiscal 2019 Divestitures

In March 2019, the Company sold all of the shares of Triumph Structures – Kansas City, Inc.; Triumph Structures – Wichita, Inc.; Triumph Gear Systems – Toronto; ULC; and Triumph Northwest (The Triumph Group Operations, Inc.) (together, "Machining").  Total cash proceeds net of transaction costs for the sale of Machining was approximately $43,000.  A portion of the proceeds associated with the sale of Machining included consideration in the form of a note receivable of $10,000.   Upon closing, the Company recognized a loss of approximately $116,000.  An additional loss of approximately $3,000 was recognized during fiscal 2020, as a result of working capital adjustments and additional transaction costs and is presented within loss on sale of assets and businesses on the accompanying consolidated statements of operations.

In March 2019, the Company sold all of the shares of (i) Triumph Fabrications - San Diego, Inc. and Triumph Fabrications - Ft. Worth, Inc. (together, "Fabrications"), and (ii) Triumph Aviation Services - NAAS Division, Inc. ("NAAS").  Total cash proceeds net of transaction costs for the sales of Fabrications and NAAS were approximately $133,000 and $18,000, respectively.  As a result of the sales of Fabrications, the Company recognized a gain of approximately $54,000.  The sale of NAAS resulted in an immaterial gain.

In February 2019, the Company transitioned responsibility for the Global 7500 wing program manufacturing operations of Aerospace Structures to Bombardier at which point Bombardier assumed the program’s assets and obligations.  As a result of this transfer, the Company recognized a loss of approximately $169,000.  The Company continued to provide transition services related to infrastructure support through December 2020, as well as a lease of the building in Red Oak, Texas, dedicated to the manufacturer of the Global 7500 wing to Bombardier.

In July and August 2018, respectively, the Company sold all of the shares of Triumph Structures - East Texas, Inc. as well as all of the shares of Triumph Structures - Los Angeles, Inc., and Triumph Processing, Inc. for combined cash proceeds net of transactions costs of approximately $43,000 and a note receivable of $7,000.  The note receivable was collected in October 2018.  As a result of these sales, the Company recognized losses of approximately $17,000, which are presented on the accompanying consolidated statements of operations within loss on sale of assets and businesses.

4.    REVENUE RECOGNITION AND CONTRACTS WITH CUSTOMERS

Disaggregation of Revenue

The Company disaggregates revenue based on the method of measuring satisfaction of the performance obligation either over time or at a point in time. Additionally, the Company disaggregates revenue based upon the end market where products and

58

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

services are transferred to the customer. The Company’s principal operating segments and related revenue are discussed in Note 21, Segments.

The following table shows disaggregated net sales satisfied overtime and at a point in time (excluding intercompany sales) for the years ended March 31, 2021 and 2020:

	Year Ended March 31,
	2021		2020
Systems & Support
Satisfied over time	$	464,874	$	578,117
Satisfied at a point in time		576,886		738,158
Revenue from contracts with customers		1,041,760		1,316,275
Amortization of acquired contract liabilities		15,062		34,486
Total revenue		1,056,822		1,350,761
Aerospace Structures
Satisfied over time	$	746,545	$	1,378,866
Satisfied at a point in time		42,850		129,690
Revenue from contracts with customers		789,395		1,508,556
Amortization of acquired contract liabilities		23,502		40,800
Total revenue		812,897		1,549,356
	$	1,869,719	$	2,900,117

The following table shows disaggregated net sales by end market (excluding intercompany sales) for the years ended March 31, 2021 and 2020:

	Year Ended March 31,
	2021		2020
Systems & Support
Commercial aerospace	$	396,841	$	737,885
Military		552,323		436,166
Business jets		36,701		61,338
Regional		24,862		43,761
Non-aviation		31,033		37,125
Revenue from contracts with customers		1,041,760		1,316,275
Amortization of acquired contract liabilities		15,062		34,486
Total revenue	$	1,056,822	$	1,350,761
Aerospace Structures
Commercial aerospace	$	481,845	$	879,690
Military		137,466		116,846
Business jets		158,156		422,681
Regional		11,558		89,318
Non-aviation		370		21
Revenue from contracts with customers		789,395		1,508,556
Amortization of acquired contract liabilities		23,502		40,800
Total revenue		812,897		1,549,356
	$	1,869,719	$	2,900,117

59

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

Contract Assets and Liabilities

Contract assets primarily represent revenues recognized for performance obligations that have been satisfied or partially satisfied but for which amounts have not been billed. This typically occurs when revenue is recognized over time but the Company's contractual right to bill the customer and receive payment is conditional upon the satisfaction of additional performance obligations in the contract, such as final delivery of the product. Contract assets are recognized when the revenue associated with the contract is recognized prior to billing and derecognized when billed in accordance with the terms of the contract. The Company pools contract assets that share underlying risk characteristics and records an allowance for expected credit losses based on a combination of prior experience, current economic conditions and management’s expectations of future economic conditions, and specific collectibility matters when they arise.  Contract assets are presented net of this reserve on the accompanying consolidated balance sheets. For the years ended March 31, 2021 and 2020, credit loss expense and write-offs related to contract assets were immaterial.

Contract liabilities are recorded when customers remit contractual cash payments in advance of the Company satisfying performance obligations under contractual arrangements, including those with performance obligations to be satisfied over a period of time. Contract liabilities other than those pertaining to forward loss reserves are derecognized when or as revenue is recognized.

Contract modifications can also impact contract asset and liability balances. When contracts are modified to account for changes in contract specifications and requirements, the Company considers whether the modification either creates new or changes the existing enforceable rights and obligations. Contract modifications that are for goods or services that are not distinct from the existing contract, due to the significant integration with the original good or service provided, are accounted for as if they were part of that existing contract. The effect of a contract modification to an existing contract on the transaction price and the Company’s measure of progress for the performance obligation to which it relates, is recognized as an adjustment to revenue (either as an increase in or a reduction of revenue) on a cumulative catch-up basis. When the modifications include additional performance obligations that are distinct and at relative stand-alone selling price, they are accounted for as a new contract and performance obligation, which are recognized prospectively.

Contract balances are classified as assets or liabilities on a contract-by-contract basis at the end of each reporting period. The following table summarizes the Company’s contract assets and liabilities balances:

	March 31, 2021			March 31, 2020			Change
Contract assets	$	139,937		$	267,079		$	(127,142	)
Contract liabilities		(305,116	)		(386,585	)		81,469
Net contract liability	$	(165,179	)	$	(119,506	)	$	(45,673	)

The Company recognized revenue due to changes in estimates associated with performance obligations satisfied or partially satisfied in previous periods of $4,796. The change in contract assets is the result of the settlement of approximately $60,802 of contract assets associated with the Gulfstream G650 wing supply chain transfer as well as the reclassification of approximately $76,821 of contract assets as held for sale on the accompanying consolidated balance sheet as of March 31, 2021.  These decreases were partially offset by revenue recognized in excess of amounts billed during the year ended March 31, 2021.   The change in contract liabilities is the result of revenue recognized in excess of the receipt of additional customer advances during the period as well as the reclassification of approximately $7,562 of contract liabilities as held for sale on the accompanying consolidated balance sheet as of March 31, 2021. For the period ended March 31, 2021, the Company recognized $78,725 of revenue that was included in the contract liability balance at the beginning of the period. Noncurrent contract assets presented in other, net on the accompanying consolidated balance sheets as of March 31, 2021 and 2020, were $5,299 and $22,662, respectively. Noncurrent contract liabilities presented in other noncurrent liabilities on the accompanying consolidated balance sheets as of March 31, 2021 and 2020, were $100,737 and $91,265, respectively.

Performance Obligations

Customers generally contract with the Company for requirements in a segment relating to a specific program, and the Company’s performance obligations consist of a wide range of engineering design services and manufactured components, as well as spare parts and repairs for OEMs. A single contract may contain multiple performance obligations consisting of both recurring and nonrecurring elements.

As of March 31, 2021, the Company has the following unsatisfied, or partially unsatisfied, performance obligations that are expected to be recognized in the future as noted in the table below. The Company expects options to be exercised in addition to the amounts presented below.

	Total		Less than 1 year		1-3 years		4-5 years		More than 5 years
Unsatisfied performance obligations	$	2,273,527	$	1,251,209	$	961,332	$	60,889	$	97

Of the total unsatisfied performance obligations included in the table above as of March 31, 2021, approximately $433,262 related to divestitures occurring subsequent to March 31, 2021, as disclosed in Note 22.  

60

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

5.    INVENTORIES

The Company records inventories at the lower of cost (average-cost or specific-identification methods) or market. The Company expenses general and administrative costs related to products and services provided essentially under commercial terms and conditions as incurred. The Company determines the costs of inventories sold by the first-in, first-out or average cost methods.

The components of inventories are as follows:

	March 31,
	2021		2020
Raw materials	$	45,211	$	32,552
Work-in-process, including manufactured and purchased components		277,729		312,953
Finished goods		51,221		50,011
Rotable assets		26,205		57,460
Total inventories	$	400,366	$	452,976

The Company recognized an impairment loss of approximately $23,689 on certain rotable inventory that primarily arose as a result of customer fleet retirement announcements resulting from the COVID-19 pandemic.  The impairment loss is included in cost of sales on the accompanying consolidated statements of operations for the year ended March 31, 2021.

6.    PROPERTY AND EQUIPMENT

Property and equipment, which include equipment under finance lease and leasehold improvements, are recorded at cost and depreciated over the estimated useful lives of the related assets, or the lease term if shorter in the case of leasehold improvements, using the straight-line method. Buildings and improvements are depreciated over a period of 15 to 39.5 years, and machinery and equipment are depreciated over a period of 7 to 15 years (except for furniture, fixtures and computer equipment, which are depreciated over a period of 3 to 10 years).

Net property and equipment is:

	March 31,
	2021		2020
Land	$	17,814	$	42,438
Construction-in-process		11,368		19,231
Buildings and improvements		144,756		285,407
Machinery and equipment		594,542		701,018
		768,480		1,048,094
Less: accumulated depreciation		557,111		629,953
	$	211,369	$	418,141

Depreciation expense for the fiscal years ended March 31, 2021, 2020, and 2019, was $71,651, $89,857 and $97,323, respectively, which includes depreciation of assets under finance lease.

7.    GOODWILL AND OTHER INTANGIBLE ASSETS

The following is a summary of the changes in the carrying value of goodwill by reportable segment, for the fiscal years ended March 31, 2021 and 2020:

	Systems & Support
March 31, 2020	$	513,527
Effect of exchange rate changes		8,111
March 31, 2021	$	521,638

	Systems & Support
March 31, 2019	$	583,225
Effect of exchange rate changes		(3,577	)
Impairment of goodwill		(66,121	)
March 31, 2020	$	513,527

61

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

As of March 31, 2021 and 2020, Aerospace Structures had gross goodwill of $871,387 and $1,166,773, respectively, which was fully impaired.  As of March 31, 2021 and 2020, Systems & Support had gross goodwill of $587,759 and $579,649, respectively, and accumulated goodwill impairment of $66,121 and $66,121, respectively.  

Intangible Assets

The components of intangible assets, net are as follows:

	March 31, 2021
	Weighted- Average Life (in Years)		Gross Carrying Amount		Accumulated Amortization			Net
Customer relationships		17.9	$	170,198	$	(74,253	)	$	95,945
Product rights, technology and licenses		11.4		55,050		(48,645	)		6,405
Other		30.0		300		(197	)		103
Total intangibles, net			$	225,548	$	(123,095	)	$	102,453

	March 31, 2020
	Weighted- Average Life (in Years)		Gross Carrying Amount		Accumulated Amortization			Net
Customer relationships		17.7	$	550,131	$	(276,980	)	$	273,151
Product rights, technology and licenses		11.4		54,676		(46,180	)		8,496
Noncompete agreements and other		16.7		2,656		(1,208	)		1,448
Tradenames		10.0		150,000		(51,127	)		98,873
Total intangibles, net			$	757,463	$	(375,495	)	$	381,968

Amortization expense for the fiscal years ended March 31, 2021, 2020, and 2019, was $22,551, $48,311, and $52,581, respectively. Amortization expense for the five fiscal years succeeding March 31, 2021, by year is expected to be as follows: 2022: $11,846; 2023: $11,846; 2024: $11,846; 2025: $11,846; 2026: $11,432, and thereafter: $43,639.

8.    ACCRUED EXPENSES

Accrued expenses consist of the following items:

	March 31,
	2021		2020
Accrued pension	$	1,097	$	753
Accrued other postretirement benefits		3,371		4,775
Accrued compensation and benefits		97,021		84,404
Accrued interest		31,036		13,252
Accrued warranties		24,492		30,079
Accrued workers' compensation		15,601		16,583
Accrued income tax		5,084		3,796
Operating lease liabilities		11,605		13,139
All other		81,853		60,622
Total accrued expenses	$	271,160	$	227,403

62

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

9.    LEASES

The components of lease expense for the year ended March 31, 2021, are disclosed in the table below.

		Year Ended March 31,
Lease Cost	Financial Statement Classification	2021		2020
Operating lease cost	Cost of sales or Selling, general and administrative expense	$	22,976	$	24,539
Variable lease cost	Cost of sales or Selling, general and administrative expense		9,344		8,382
Financing Lease Cost:
Amortization of right-of-use assets	Depreciation and amortization		4,673		5,317
Interest on lease liability	Interest expense and other		1,580		2,307
Total lease cost (1)		$	38,573	$	40,545

(1) Total lease cost does not include short-term leases or sublease income, both of which are immaterial.

Supplemental cash flow information for the years ended March 31, 2021 and 2020, is disclosed in the table below.

	2021		2020
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows used in operating leases	$	21,008	$	21,430
Operating cash flows used in finance leases		1,583		2,327
Financing cash flows used in finance leases		7,774		8,370
ROU assets obtained in exchange for lease liabilities
Operating leases		6,547		3,826
Finance leases	$	2,909	$	1,039

Supplemental balance sheet information related to leases as of March 31, 2021 and 2020, is disclosed in the table below.

		March 31,
Leases	Classification	2021			2020
Assets
Operating lease ROU assets	Other, net Assets held for sale	$	46,643		$	61,461
Finance lease ROU assets, cost	Property and equipment, net Assets held for sale		44,128			39,461
Accumulated amortization	Property and equipment, net Assets held for sale		(23,344	)		(18,650	)
Finance lease ROU assets, net			20,784			20,811
Total lease assets		$	67,427		$	82,272
Liabilities
Current
Operating	Accrued expenses Liabilities related to assets held for sale	$	12,885		$	13,139
Finance	Current portion of long-term debt Liabilities related to assets held for sale		5,972			7,336
Noncurrent
Operating	Other noncurrent liabilities Liabilities related to assets held for sale		42,385			54,687
Finance	Long-term debt, less current portion Liabilities related to assets held for sale		14,878			16,597
Total lease liabilities		$	76,120		$	91,759

63

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

Information related to lease terms and discount rates as of March 31, 2021 and 2020, is disclosed in the table below.

	2021			2020
Weighted average remaining lease term (years)
Operating leases		7.3			7.2
Finance leases		6.9			6.9
Weighted average discount rate
Operating leases		6.3	%		6.2	%
Finance leases		6.8	%		5.9	%

The maturity of the Company's lease liabilities as of March 31, 2021, is disclosed in the table below.

	Operating leases			Finance leases			Total
FY2022	$	15,752		$	7,436		$	23,188
FY2023		10,561			4,322			14,883
FY2024		7,057			3,520			10,577
FY2025		6,339			1,961			8,300
FY2026		5,880			1,305			7,185
Thereafter		23,912			8,656			32,568
Total lease payments		69,501			27,200			96,701
Less: Imputed interest		(14,231	)		(6,350	)		(20,581	)
Total lease liabilities	$	55,270		$	20,850		$	76,120

10.    LONG-TERM DEBT

Long-term debt consists of the following:

	March 31,
	2021			2020
Revolving credit facility	$	—		$	400,000
Receivable securitization facility		—			75,000
Finance leases		20,125			23,933
Senior secured first lien notes due 2024		700,000			—
Senior secured notes due 2024		525,000			525,000
Senior notes due 2022		236,471			300,000
Senior notes due 2025		500,000			500,000
Less: debt issuance costs		(24,053	)		(16,426	)
		1,957,543			1,807,507
Less: current portion		5,247			7,336
	$	1,952,296		$	1,800,171

Revolving Credit Facility

On August 17, 2020, the Company repaid the loans and other amounts outstanding under its Revolving Credit Facility, which was governed by the Revolving Credit Agreement and terminated all commitment thereunder.  The payment of $335,240 was made using a portion of the proceeds from the issuance of the First Lien Notes.  The Company initially cash collateralized the letters of credit issued under the Revolving Credit Agreement but now have the ability to issue letters of credit under the Securitization Facility.  

Receivables Securitization Program

On August 17, 2020, the Company entered into amendments to its Securitization Facility.  The August amendments removed the covenants that required the Company to maintain certain financial ratios.  As of March 31, 2021, the maximum amount available under the Securitization Facility was $75,000, and the Company has the ability to reduce the facility amount to not less than $50,000.  The actual amount available under the Securitization Facility at any point in time is dependent upon the balance of eligible accounts receivables as well as the amount of letters of credit outstanding.

64

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

On September 29, 2020, the Company entered into additional amendments to the Securitization Facility.  The September amendments provide the Company with enhanced liquidity options by establishing a letter of credit facility under the Securitization Facility which effectively replaces a similar limited letter of credit facility under the Revolving Credit Facility Amendment. Pursuant to the letter of credit facility, the Company may request the Securitization Facility’s administrator to issue one or more letters of credit that will expire no later than 12 months after the date of issuance, extension or renewal, as applicable.

In connection with the Securitization Facility, the Company sells on a revolving basis certain eligible accounts receivable to Triumph Receivables, LLC, a wholly-owned special-purpose entity, which in turn sells a percentage ownership interest in the receivables to commercial paper conduits sponsored by financial institutions.  The Company is the servicer of the trade accounts receivable under the Securitization Facility.  Interest rates are based on the lesser of 0.75% or the London Interbank Offered Rate (“LIBOR”), plus a 2.50% fee on the drawn portion and 0.60% fee on the undrawn portion of the Securitization Facility.  The Company secures its trade accounts receivable, which are generally non-interest-bearing, in transactions that are accounted for as borrowings pursuant to ASC 860, Transfers and Servicing.  At March 31, 2021, there were $0 in borrowings and $27,763 in letters of credit outstanding under the Securitization Facility, primarily to support insurance policies.  The Securitization Facility expires in December 2022.

The agreements governing the Securitization Facility contain restrictions and covenants, including limitations on the making of certain restricted payments; creation of certain liens; and certain corporate acts such as mergers, consolidations and the sale of all or substantially all the Company's assets.

Senior Secured First Lien Notes due 2024

On August 17, 2020, the Company issued $700,000 principal amount of 8.875% Senior Secured First Lien Notes due June 1, 2024 (the “First Lien Notes”) pursuant to an indenture among the Company, the Guarantor Subsidiaries (as defined below) and U.S. Bank National Association, as trustee (the “First Lien Notes Indenture”). The First Lien Notes were sold at 100% of the principal amount and have an effective interest yield of 8.875%.  Interest is payable semi-annually in cash in arrears on June 1 and December 1 of each year, commencing on December 1, 2020.  In connection with the issuance of the First Lien Notes, the Company incurred approximately $13,000 of costs, which were deferred and are being amortized over the term of the First Lien Notes.

The First Lien Notes and the guarantees are first lien secured obligations of the Company and the Guarantor Subsidiaries.  The First Lien Notes:

• rank equally in right of payment to any existing and future senior indebtedness of the Company and Guarantor Subsidiaries, including the 2022 Notes, the 2024 Notes, and the 2025 Notes, (each as defined below and collectively, the “Existing Notes”);

• are effectively senior to all existing and future second lien obligations (including the 2024 Notes) and all existing and future unsecured indebtedness of the Company and the Guarantor Subsidiaries, but only to the extent of the value of the Collateral (as defined below), and after giving effect to any permitted additional first lien secured obligations and other permitted liens of senior or equal priority);

• are senior in right of payment to all future subordinated indebtedness of the Company and the Guarantor Subsidiaries;

• are secured by the Collateral on a pari passu basis with any future permitted additional first lien secured obligations, subject to the Collateral Trust Agreement (as defined below);

• are effectively subordinated to any existing and future obligations of the Company and the Guarantor Subsidiaries that are secured by assets that do not constitute the Collateral, in each case, to the extent of the value of the assets securing such obligations; and

• are structurally subordinated to all existing and future indebtedness and other liabilities of the Company’s existing and future subsidiaries that do not guarantee the First Lien Notes, including the Receivables Securitization Facility.

The First Lien Notes are guaranteed on a full, senior secured, joint and several basis by each of the Company’s domestic restricted subsidiaries (the “Guarantor Subsidiaries”) that guarantees any of the Company’s Existing Notes.  In the future, each of the Company’s domestic restricted subsidiaries (other than any domestic restricted subsidiary that is a receivable subsidiary) that (1) is not an immaterial subsidiary, (2) becomes a borrower under any of its material debt facilities or (3) guarantees (a) any of the Company’s indebtedness or (b) any indebtedness of the Company’s domestic restricted subsidiaries, in the case of either (a) or (b), incurred under any of the Company’s material debt facilities, will guarantee the First Lien Notes. Under certain circumstances, the guarantees may be released without action by, or consent of, the holder of the First Lien Notes.

65

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

The First Lien Notes and the guarantees will be secured, subject to permitted liens, by first-priority liens on substantially all of the Company’s and the Guarantor Subsidiaries’ assets (including certain of the Company’s real estate assets), whether now owned or hereafter acquired, other than certain excluded property, which liens will secure permitted additional first lien obligations on a pari passu basis, subject to the Collateral Trust Agreement and will rank senior to those that secure the 2024 Notes (the “Collateral”). Under certain circumstances, the Collateral may be released without action by, or the consent of, the holders of the First Lien Notes. The First Lien Notes and the guarantees will not be secured by the assets of Non-Guarantor Subsidiaries (as defined below), which include the unrestricted subsidiaries to whom certain of the Company’s accounts receivables are and may in the future be sold to support borrowing under the Receivables Securitization Facility.

Pursuant to an intercreditor agreement (the “Intercreditor Agreement”) between Wilmington Trust, National Association, in its capacity as the collateral trustee (the “Collateral Trustee”) and U.S. Bank National Association, in its capacity as second lien collateral agent for the 2024 Notes, the liens on the Collateral securing the First Lien Notes and all future first lien obligations will be made expressly senior to the liens securing the 2024 Notes.

A collateral trust agreement (the “Collateral Trust Agreement”) among the Company, the Guarantor Subsidiaries, the Collateral Trustee and U.S. Bank National Association, in its capacity as the trustee for the First Lien Notes, will set forth therein the relative rights with respect to the Collateral as among the trustee for the First Lien Notes and certain subsequent holders of first lien obligations and covering certain other matters relating to the administration of security interests. The Collateral Trust Agreement will generally control substantially all matters related to the Collateral, including with respect to decisions, distribution of proceeds or enforcement. Pursuant to the Collateral Trust Agreement, on the issue date of the First Lien Notes the Collateral Trustee will control certain matters related to the Collateral that the Collateral Trust Agreement specifies are in its discretion. If the Company incurs certain types of additional first lien obligations, the Controlling First Lien Holders (as defined in the Collateral Trust Agreement) will have the right to control decisions relating to the Collateral that are outside the Collateral Trustee’s discretion under the Collateral Trust Agreement and the First Lien Note holders may no longer be in control of such decisions.

The Company may redeem the First Lien Notes, in whole or in part, at any time or from time to time on or after February 1, 2023, at specified redemption prices, plus accrued and unpaid interest, if any, to the redemption date. At any time or from time to time prior to February 1, 2023, the Company may redeem the First Lien Notes, in whole or in part, at a redemption price equal to 100% of their principal amount plus a make whole premium, together with accrued and unpaid interest, if any, to the redemption date. In addition, the Company may redeem up to 40% of the aggregate principal amount of the outstanding First Lien Notes prior to June 1, 2023, with the net cash proceeds from certain equity offerings at a redemption price equal to 108.875% of their principal amount, together with accrued and unpaid interest, if any, to the redemption date.

If the Company experiences specific kinds of changes of control, the Company is required to offer to purchase all of the First Lien Notes at a purchase price of 101% of their principal amount, plus accrued and unpaid interest, if any, to the date of purchase.

The First Lien Notes Indenture contains covenants that, among other things, limit the ability of the Company and its restricted subsidiaries to: (i) incur additional indebtedness; (ii) pay dividends or make other distributions; (iii) make other restricted payments and investments; (iv) create liens; (v) incur restrictions on the ability of restricted subsidiaries to pay dividends or make certain other payments; (vi) sell assets, including capital stock of restricted subsidiaries; (vii) enter into sale and leaseback transactions; (viii) merge or consolidate with other entities; and (ix) enter into transactions with affiliates. In addition, the First Lien Notes Indenture requires, among other things, the Company to provide financial and current reports to holders of the First Lien Notes or file such reports electronically with the SEC.  Furthermore, the First Lien Notes Indenture requires that the future net proceeds from certain asset sales will be required to repay the First Lien Notes at a premium of 106.656%, until the aggregate principal amount of Notes outstanding is $350,000 or less, provided that the Company may retain the first $100,000 of such net proceeds (subject to compliance with the asset sale covenants in the Company’s other outstanding indentures) or use it for certain other permitted purposes. These covenants are subject to a number of exceptions, limitations and qualifications set forth in the Indenture, as well as suspension periods in certain circumstances.

Senior Secured Notes Due 2024

On September 23, 2019, the Company issued $525,000 principal amount of 6.250% Senior Secured Notes due September 15, 2024. The 2024 Notes were sold at 100% of principal amount and have an effective interest yield of 6.250%. Interest is payable semiannually in cash in arrears on March 15 and September 15 of each year, commencing on March 15, 2020. In connection with the issuance of the 2024 Notes, the Company incurred approximately $9,300 of costs, which were deferred and are being amortized over the term of the 2024 Notes.

The 2024 Notes are second lien secured obligations of the Company and its subsidiary guarantors. The 2024 Notes:

(i) rank equal in right of payment to existing and future senior indebtedness of the Company and its subsidiary guarantors, including the obligations of the Company and its subsidiary guarantors under the Company’s credit facility;

66

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

(ii) are effectively subordinated to all obligations of the Company and its subsidiary guarantors that are either (A) secured by a lien on the Collateral (as defined below) that is senior or prior to the second-priority liens securing the 2024 Notes, including the first-priority liens securing borrowings under the Company’s credit facility and certain cash management and hedging obligations, or (B) secured by assets that do not constitute the Collateral, in each case to the extent of the value of the assets securing such obligations;

(iii) are senior in right of payment to existing and future subordinated indebtedness of the Company and its subsidiary guarantors;

(iv) are effectively senior to all existing and future unsecured debt of the Company and its subsidiary guarantors, but only to the extent of the value of the Collateral (after giving effect to any senior liens on the Collateral); and

(v) are structurally subordinated in right of payment to all indebtedness and other liabilities of the Company’s existing and future subsidiaries that do not guarantee the 2024 Notes.

The 2024 Notes are guaranteed on a full, senior secured, joint and several basis by each of the Company’s domestic restricted subsidiaries that is a borrower under the Company’s credit facility or that guarantees any of the Company’s debt or that of any of the Company’s domestic restricted subsidiaries under the Company’s credit facility and in the future by any of the Company’s domestic restricted subsidiaries that are borrowers under any credit facility or that guarantee any debt of the Company or any of its domestic restricted subsidiaries incurred under any credit facility (the "Guarantor Subsidiaries").

The Company may redeem the 2024 Notes, in whole or in part, at any time or from time to time on or after September 15, 2020, at specified redemption prices, plus accrued and unpaid interest, if any, to the redemption date. At any time or from time to time prior to September 15, 2020, the Company may redeem the 2024 Notes, in whole or in part, at a redemption price equal to 100% of their principal amount plus a make whole premium, together with accrued and unpaid interest, if any, to the redemption date. In addition, the Company may redeem up to 40% of the aggregate principal amount of the outstanding 2024 Notes prior to September 15, 2020, with the net cash proceeds from certain equity offerings at a redemption price equal to 106.250% of their principal amount, together with accrued and unpaid interest, if any, to the redemption date.

If the Company experiences specific kinds of changes of control, the Company is required to offer to purchase all of the 2024 Notes at a purchase price of 101% of their principal amount, plus accrued and unpaid interest, if any, to the date of purchase.

The 2024 Notes were issued pursuant to an indenture dated as of September 23, 2019 (the “Indenture”). The Indenture contains covenants that, among other things, limit the ability of the Company and its restricted subsidiaries to: (i) incur additional indebtedness; (ii) pay dividends or make other distributions; (iii) make other restricted payments and investments; (iv) create liens; (v) incur restrictions on the ability of restricted subsidiaries to pay dividends or make certain other payments; (vi) sell assets, including capital stock of restricted subsidiaries; (vii) enter into sale and leaseback transactions; (viii) merge or consolidate with other entities; and (ix) enter into transactions with affiliates.

Senior Notes due 2022

On June 3, 2014, the Company issued $300,000 principal amount of 5.25% Senior Notes due June 1, 2022 (the "2022 Notes"). The 2022 Notes were sold at 100% of principal amount and have an effective interest yield of 5.25%. Interest  is payable semiannually in cash in arrears on June 1 and December 1 of each year, commencing on December 1, 2014. In connection with the issuance of the 2022 Notes, the Company incurred approximately $4,990 of costs, which were deferred and are being amortized on the effective interest method over the term of the 2022 Notes.

The 2022 Notes are the Company's senior unsecured obligations and rank equally in right of payment with all of its other existing and future senior unsecured indebtedness and senior in right of payment to all of its existing and future subordinated indebtedness. The 2022 Notes are guaranteed on a full, joint and several basis by each of the Guarantor Subsidiaries.

The Company is obligated to offer to repurchase the 2022 Notes at a price of (i)  101% of their principal amount plus accrued and unpaid interest, if any, as a result of certain change-of-control events and (ii)  100% of their principal amount plus accrued and unpaid interest, if any, in the event of certain asset sales. These restrictions and prohibitions are subject to certain qualifications and exceptions.  In the year ended March 31, 2021, the Company extinguished $63,529 of the principle balance owed under the 2022 Notes through cash payments.

67

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

The 2022 Indenture contains covenants that, among other things, limit the Company's ability and the ability of any of the Guarantor Subsidiaries to (i) grant liens on its assets, (ii) make dividend payments, other distributions or other restricted payments, (iii) incur restrictions on the ability of the Guarantor Subsidiaries to pay dividends or make other payments, (iv) enter into sale and leaseback transactions, (v) merge, consolidate, transfer or dispose of substantially all of their assets, (vi) incur additional indebtedness, (vii) use the proceeds from sales of assets, including capital stock of restricted subsidiaries, and (viii) enter into transactions with affiliates.

Senior Notes Due 2025

On August 17, 2017, the Company issued $500,000 principal amount of 7.75% Senior Notes due August 15, 2025 (the "2025 Notes"). The 2025 Notes were sold at 100% of principal amount and have an effective interest yield of 7.75%. Interest is payable semiannually in cash in arrears on February 15 and August 15 of each year, commencing on February 15, 2018. In connection with the issuance of the 2025 Notes, the Company incurred approximately $8,779 of costs, which were deferred and are being amortized on the effective interest method over the term of the 2025 Notes.

The 2025 Notes are the Company's senior unsecured obligations and rank equally in right of payment with all of its other existing and future senior unsecured indebtedness and senior in right of payment to all of its existing and future subordinated indebtedness. The 2025 Notes are guaranteed on a full, joint and several basis by each of the Guarantor Subsidiaries.

The Company may redeem some or all of the 2025 Notes prior to August 15, 2020, by paying a "make-whole" premium. The Company may redeem some or all of the 2025 Notes on or after August 15, 2020, at specified redemption prices. In addition, prior to August 15, 2020, the Company may redeem up to 35% of the 2025 Notes with the net proceeds of certain equity offerings at a redemption price equal to 107.75% of the aggregate principal amount plus accrued and unpaid interest, if any, subject to certain limitations set forth in the indenture governing the 2025 Notes (the "2025 Indenture").

The Company is obligated to offer to repurchase the 2025 Notes at a price of (i)  101% of their principal amount plus accrued and unpaid interest, if any, as a result of certain change-of-control events and (ii)  100% of their principal amount plus accrued and unpaid interest, if any, in the event of certain asset sales. These restrictions and prohibitions are subject to certain qualifications and exceptions.

The 2025 Indenture contains covenants that, among other things, limit the Company's ability and the ability of any of the guarantor subsidiaries to (i) grant liens on its assets, (ii) make dividend payments, other distributions or other restricted payments, (iii) incur restrictions on the ability of the Guarantor Subsidiaries to pay dividends or make other payments, (iv) enter into sale and leaseback transactions, (v) merge, consolidate, transfer or dispose of substantially all of their assets, (vi) incur additional indebtedness, (vii) use the proceeds from sales of assets, including capital stock of restricted subsidiaries, and (viii) enter into transactions with affiliates.

Financial Instruments Not Recorded at Fair Value

Carrying amounts and the related estimated fair values of the Company's long-term debt not recorded at fair value in the accompanying consolidated financial statements are as follows:

March 31, 2021				March 31, 2020
Carrying Value		Fair Value		Carrying Value		Fair Value
$	1,957,543	$	2,085,204	$	1,807,507	$	1,559,455

The fair value of the long-term debt was calculated based on either interest rates available for debt with terms and maturities similar to the Company's existing debt arrangements or broker quotes on its existing debt (Level 2 inputs).

Interest paid on indebtedness during the fiscal years ended March 31, 2021, 2020, and 2019, amounted to $116,515, $99,438 and $99,981, respectively.

As of March 31, 2021, the maturities of long-term debt are as follows: 2022 — $5,972; 2023 — $239,883; 2024 — $2,790; 2025 — $1,226,364; 2026 — $500,781; and thereafter— $6,531 through 2032.

68

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

11.    OTHER NONCURRENT LIABILITIES

Other noncurrent liabilities are composed of the following items:

	March 31,
	2021		2020
Acquired contract liabilities, net	$	43,888	$	92,962
Accrued warranties		9,519		31,036
Accrued workers' compensation		11,226		13,603
Noncurrent contract liabilities		100,737		91,265
Operating lease liabilities		26,060		54,687
Environmental contingencies		9,185		18,060
Income tax reserves		300		594
All other		6,463		3,962
Total other noncurrent liabilities	$	207,378	$	306,169

12.    INCOME TAXES

The components of loss from continuing operations before income taxes are as follows:

	Year ended March 31,
	2021			2020			2019
Foreign	$	(1,518	)	$	33,399		$	(18,336	)
Domestic		(446,511	)		(57,034	)		(314,236	)
	$	(448,029	)	$	(23,635	)	$	(332,572	)

The components of income tax (benefit) expense are as follows:

	Year ended March 31,
	2021			2020			2019
Current:
Federal	$	—		$	(654	)	$	(1,253	)
State		(315	)		27			431
Foreign		3,372			3,602			3,335
		3,057			2,975			2,513
Deferred:
Federal		—			2,748			(9,076	)
State		—			73			1,593
Foreign		(176	)		2			(456	)
		(176	)		2,823			(7,939	)
	$	2,881		$	5,798		$	(5,426	)

A reconciliation of the statutory federal income tax rate to the effective tax rate is as follows:

	Year ended March 31,
	2021			2020			2019
Statutory federal income tax rate		21.0	%		21.0	%		21.0	%
State and local income taxes, net of federal tax benefit		2.7			(12.1	)		4.6
Goodwill impairment		—			(37.4	)		—
Disposition of business		—			—			3.2
Miscellaneous permanent items and nondeductible accruals		(0.7	)		3.9			(1.2	)
Research and development tax credit		0.7			30.4			3.3
Foreign tax credits		(0.3	)		(24.1	)		(0.7	)
Valuation allowance		(25.5	)		29.3			(28.6	)
Tax reform and CARES Act		—			(12.3	)		0.4
Global Intangible Low-Taxed Income		—			(20.4	)		(1.3	)
Other (including foreign rate differential and FIN 48)		1.4			(2.8	)		0.9
Effective income tax rate		(0.7	)%		(24.5	)%		1.6	%

69

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

The components of deferred tax assets and liabilities are as follows:

	March 31,
	2021			2020
Deferred tax assets:
Net operating loss and other credit carryforwards	$	345,071		$	318,341
Inventory		21,484			17,521
Accruals and reserves		34,379			40,492
Interest carryforward		62,893			38,383
Pension and other postretirement benefits		89,952			152,048
Lease right-of-use assets		6,890			11,495
Prepaid expenses and other		—			241
Acquired contract liabilities, net		7,504			21,771
		568,173			600,292
Valuation allowance		(512,554	)		(438,667	)
Net deferred tax assets		55,619			161,625
Deferred tax liabilities:
Deferred revenue		22,342			38,458
Property and equipment		12,581			34,939
Goodwill and other intangible assets		21,701			80,740
Lease liabilities		5,848			14,928
Prepaid expenses and other		588			—
		63,060			169,065
Net deferred tax liabilities	$	7,441		$	7,440

The Company follows ASC 740, Income Taxes, which prescribes a recognition threshold and measurement attribute criteria for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return, as well as guidance on derecognition, classification, interest and penalties, disclosure and transition.  The Company's policy is to release the tax effects from accumulated other comprehensive income when all of the related assets or liabilities that gave rise to the accumulated other comprehensive income have been derecognized. The Company has elected to treat global intangible low-taxed income (“GILTI”) as a period expense.

A valuation allowance, if needed, reduces deferred tax assets to the amount expected to be realized. When determining the amount of net deferred tax assets that are more likely than not to be realized, the Company assesses all available positive and negative evidence. This evidence includes, but is not limited to, prior earnings history, expected future earnings, carry-back and carry-forward periods and the feasibility of ongoing tax strategies that could potentially enhance the likelihood of the realization of a deferred tax asset. The weight given to the positive and negative evidence is commensurate with the extent the evidence may be objectively verified. As such, it is generally difficult for positive evidence regarding projected future taxable income exclusive of reversing taxable temporary differences to outweigh objective negative evidence of recent financial reporting losses.

Based on these criteria and the relative weighting of both the positive and negative evidence available, and in particular the activity surrounding the Company's prior earnings history, including the forward losses and intangible impairments previously recognized, management determined that it was necessary to establish a valuation allowance against principally all of its net deferred tax assets. Given the objective verifiable negative evidence of a three-year cumulative loss and the weighting of all available positive evidence, the Company excluded projected taxable income (aside from reversing taxable temporary differences) from the assessment of income that could be used as a source of taxable income to realize the deferred tax assets.

During fiscal year 2021, the Company adjusted the valuation allowance against the consolidated net deferred tax asset by $73,887 primarily due to an increase in the net operating loss and changes to temporary differences related to the impairment of long-lived intangible assets, interest disallowance, and pension and other postretirement benefit plans. As of March 31, 2021, management determined that it was necessary to maintain a valuation allowance against principally all of its net deferred tax assets.

As of March 31, 2021, the Company has net operating loss carryforwards of $659,278, $1,427,890, and $140,839 for U.S. federal, state, and foreign jurisdictions, respectively.

The effective income tax rate for the fiscal year ended March 31, 2021, was (0.7)% as compared with (24.5)% for the fiscal year ended March 31, 2020. The effective income tax rate for the fiscal year ended March 31, 2021, included the benefit of the R&D tax credit of $3,076, the benefit of the foreign tax rate differences of $1,244, and the change in the valuation allowance of $114,283. Due to the current year pretax loss, the effective tax rate drivers on a percentage basis are amplified. Accordingly, a year-over-year comparison of the effective tax rate may not be indicative of changes in the Company's tax position.

70

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

The Company has been granted income tax holiday as an incentive to attract foreign investment by the Government of Thailand. The tax holidays expire in various years through 2026. The Company does not have any other tax holidays in the jurisdictions in which it operates. The income tax benefit attributable to the tax status of our subsidiaries in Thailand was approximately $0 or $0.00 per diluted share in fiscal 2021, $1,932 or $0.04 per diluted share in fiscal 2020 and $2,160 or $0.04 per diluted share in fiscal 2019.

At March 31, 2021, cumulative undistributed earnings of foreign subsidiaries, for which no U.S. income or foreign withholding taxes have been recorded is $162,467. As the Company currently intends to indefinitely reinvest all such earnings, no provision has been made for income taxes that may become payable upon distribution of such earnings, and it is not practicable to determine the amount of the related unrecognized deferred income tax liability.

The Company has classified uncertain tax positions as noncurrent income tax liabilities unless expected to be paid in one year.

As of March 31, 2021 and 2020, the total amount of unrecognized tax benefits was $11,536 and $18,965, respectively, all of which would impact the effective rate, if recognized. The Company anticipates that total unrecognized tax benefits may be reduced by zero in the next 12 months. With a few exceptions, the Company is no longer subject to U.S. federal, state, or local income tax examinations, or foreign income tax examinations by tax authorities, for fiscal years ended before March 31, 2014.

As of March 31, 2021, the Company is not subject to any income tax examinations. The Company has filed appeals in a prior state examination related to fiscal years ended March 31, 1999 through March 31, 2005. The Company believes appropriate provisions for all outstanding issues have been made for all jurisdictions and all open years.

A reconciliation of the liability for uncertain tax positions, which are included in deferred taxes for the fiscal years ended March 31, 2021 and 2020, follows:

	Year ended March 31,
	2021			2020			2019
Beginning balance	$	19,127		$	19,373		$	11,759
Adjustments for tax positions related to the current year		311			1,057			7,364
Adjustments for tax positions of prior years		(7,688	)		(1,303	)		250
Ending balance	$	11,750		$	19,127		$	19,373

13. STOCKHOLDERS' DEFICIT

On February 4, 2021, the Company implemented a new “at the market” stock issuance program by entering into an Equity Distribution Agreement (the “Equity Distribution Agreement”) with Citigroup Global Markets Inc. (the “Manager”). Under the terms of the Equity Distribution Agreement, the Company may from time to time to or through the Manager, acting as agent and/or principal, offer and sell shares of its common stock (the “Shares”), par value $0.001 per share (“Common Stock”) having a gross sales price of up to $150,000.  From the date the program was implemented through March 31, 2021, the Company completed the program, selling 9,178,752 shares with a gross sales price of $150,000 for total proceeds net of stock issuance costs of $145,383.

In March 2019, the Company adopted a tax benefits preservation plan (the "Plan") designed to preserve Triumph’s ability to utilize its net operating loss carryforwards and other tax attributes (collectively, "Tax Benefits"). The Plan is similar to plans adopted by other public companies with significant Tax Benefits. The Company obtained stockholder approval for the Plan as well as an amendment to the Company’s amended and restated certificate of incorporation that permitted the issuance of Rights (as defined below) related to preferred stock, at its annual meeting of stockholders in 2019.  

Under the Plan, Triumph declared a dividend distribution of one right (a “Right”) for each share of its common stock outstanding at the close of business on March 25, 2019. The Rights trade with Triumph’s common shares and will expire on March 13, 2022. The Rights also will expire: (i) if the Rights are redeemed or exchanged as provided in the Plan; (ii) if the Board determines that the Plan is no longer necessary or desirable for the preservation of the Tax Benefits; or (iii) if the Board determines that no Tax Benefits, once realized, as applicable, may be carried forward (in which case, the Rights will expire on the first date of the relevant taxable year for which such determination is made).

Pursuant to the Plan, if a stockholder (or group) becomes a 5% stockholder without meeting certain customary exceptions, the Rights become exercisable and entitle stockholders (other than the 5% stockholder or group causing the rights to become exercisable) to purchase additional shares of Triumph at a significant discount, resulting in significant dilution in the economic interest and voting power of the 5% stockholder or group causing the Rights to become exercisable. Stockholders owning five percent or more of Triumph’s outstanding shares at the time the Plan was adopted were grandfathered and will only cause the Rights to distribute and become exercisable if they acquire an additional one percent or more of Triumph’s outstanding shares. Under the Plan, the Board has the ability to determine in its sole discretion that any person shall not be deemed an acquiring person and therefore that the Rights shall not become exercisable if such person becomes a 5% stockholder. The adoption of the Plan and the dividend distribution did not have an impact on the Company’s consolidated financial statements.

71

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

In 2014, the Company's Board of Directors authorized an increase in the Company's existing stock repurchase program by up to 5,000,000 shares of its common stock in addition to the 500,800 shares authorized under prior authorizations. As of March 31, 2021, the Company remains able to purchase an additional 2,277,789 shares. Repurchases may be made from time to time in open market transactions, block purchases, privately negotiated transactions or otherwise at prevailing prices. No time limit has been set for completion of the program.

The holders of the common stock are entitled to one vote per share on all matters to be voted upon by the stockholders of Triumph.

The Company has preferred stock of $0.01 par value, 250,000 shares authorized. At March 31, 2021 and 2020, zero shares of preferred stock were outstanding.

Accumulated Other Comprehensive Loss

Changes in accumulated other comprehensive loss ("AOCI") by component for the years ended March 31, 2021 and 2020, were as follows:

	Currency Translation Adjustment			Unrealized Gains and Losses on Derivative Instruments			Defined Benefit Pension Plans and Other Postretirement Benefits				Total (1)
March 31, 2019	$	(48,606	)	$	(1,130	)	$	(466,275	)		$	(516,011	)
AOCI before reclassifications		(13,439	)		(1,611	)		(208,835	)			(223,885	)
Amounts reclassified from AOCI		—			(1,562	)		(4,990	)	(2)		(6,552	)
Net current period OCI		(13,439	)		(3,173	)		(213,825	)			(230,437	)
March 31, 2020		(62,045	)		(4,303	)		(680,100	)			(746,448	)
AOCI before reclassifications		19,884			5,891			168,701				194,476
Amounts reclassified from AOCI		—			(573	)		22,353		(2)		21,780
Net current period OCI		19,884			5,318			191,054				216,256
March 31, 2021	$	(42,161	)	$	1,015		$	(489,046	)		$	(530,192	)

(1) Net of tax.

(2) Includes amortization of actuarial losses and recognized prior service (credits) costs, which are included in the net periodic pension cost

14.    LOSS PER SHARE

The following is a reconciliation between the weighted average common shares outstanding used in the calculation of basic and diluted loss per share:

	Year ended March 31,
	2021		2020		2019
	(thousands)
Weighted average common shares outstanding—basic		52,739		50,494		49,698
Net effect of dilutive stock options and non-vested stock(1)		—		—		—
Weighted average common shares outstanding—diluted		52,739		50,494		49,698

(1) For the fiscal years ended March 31, 2021, 2020, and 2019, the shares that could potentially dilute earnings per share in the future but were not included in diluted weighted average common shares outstanding because to do so would have been anti-dilutive were immaterial.

15.    EMPLOYEE BENEFIT PLANS

Defined Contribution Pension Plan

The Company sponsors a defined contribution 401(k) plan, under which salaried and certain hourly employees may defer a portion of their compensation. Eligible participants may contribute to the plan up to the allowable amount as determined by the plan of their regular compensation before taxes. The Company generally matches contributions up to 75% of the first 6% of compensation contributed by the participant. All contributions and Company matches are invested at the direction of the employee in one or more investment options offered under the plan. Company matching contributions vest immediately and aggregated to $1,665, $14,763, and $13,685 for the fiscal years ended March 31, 2021, 2020, and 2019, respectively.  Effective April 1, 2020, the Company suspended its 401(k) matching contribution for non-represented employees and some represented employees for fiscal year 2021 and has continued the suspension for fiscal year 2022.

72

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

Defined Benefit Pension and Other Postretirement Benefit Plans

The Company sponsors several defined benefit pension plans covering some of its employees. Most employees are ineligible to participate in the plans or have ceased to accrue additional benefits under the plans. Benefits under the defined benefit plans are based on years of service and, for most non-represented employees, on average compensation for certain years. It is the Company's policy to fund at least the minimum amount required for all qualified plans, using actuarial cost methods and assumptions acceptable under applicable government regulations, by making payments into a trust separate from us.

In addition to the defined benefit pension plans, the Company provides certain health care benefits for eligible retired employees. Such benefits are unfunded as of March 31, 2021. Employees achieve eligibility to participate in these contributory plans upon retirement from active service if they meet specified age and years of service requirements. Current plan documents reserve the right to amend or terminate the plans at any time, subject to applicable collective bargaining requirements for represented employees.  During the year ended March 31, 2020, the Company reached agreement with two unions whose members make up the vast majority of participants eligible for retiree healthcare benefits.  Under the terms of these agreements, the right to benefits under the current program ceased for all represented participants (actively employed and retired) by April 1, 2020.  Company-funded notional health reimbursement accounts were provided to retired participants (and their dependents) whose eligibility for current benefits ended under the new agreement. The average size of each account is immaterial and the Company anticipates that these accounts will be fully drawn down in one year.  These changes served to reduce the Company’s other postretirement benefit (“OPEB”) liability by approximately $99,000.    

In accordance with ASC 715, the Company has recognized the funded status of the benefit obligation as of March 31, 2021 and 2020, on the accompanying consolidated balance sheets. The funded status is measured as the difference between the fair value of the plans' assets and the PBO or accumulated postretirement benefit obligation of the plan. The majority of the plan assets are publicly traded investments which were valued based on the market price as of the measurement date. Investments that are not publicly traded were valued based on the estimated fair value of those investments based on the Company’s evaluation of data from fund managers and comparable market data.

The following table sets forth the Company's consolidated defined benefit pension plans for its union and non-union employees as of March 31, 2021 and 2020, and the amounts recorded on the consolidated balance sheets at March 31, 2021 and 2020. Company contributions include amounts contributed directly to plan assets and indirectly as benefits paid from the Company's assets. Benefit payments reflect the total benefits paid from the plans and the Company's assets. Information on the plans includes both the domestic qualified and nonqualified plans and the foreign qualified plans.

	Pension Benefits						Other Postretirement Benefits
	Year ended March 31,						Year ended March 31,
	2021			2020			2021			2020
Change in projected benefit obligations
Projected benefit obligation at beginning of year	$	2,254,985		$	2,234,734		$	7,150		$	109,455
Service cost		1,537			2,336			—			62
Interest cost		64,599			68,446			112			1,559
Actuarial loss (gain)		83,263			138,652			(156	)		3,472
Plan amendments		—			4,898			—			(99,080	)
Curtailments		—			22,732			—			—
Divestitures		—			(55,354	)		—			—
Participant contributions		164			204			—			252
Settlements		—			(14,579	)		—			—
Special termination benefits		—			11,642			—			—
Benefits paid		(179,956	)		(156,084	)		(2,182	)		(8,570	)
Currency translation adjustment		5,656			(2,642	)		—			—
Projected benefit obligation at end of year	$	2,230,248		$	2,254,985		$	4,924		$	7,150
Accumulated benefit obligation at end of year	$	2,228,830		$	2,252,126		$	4,924		$	7,150
Assumptions used to determine benefit    obligations at end of year
Discount rate	2.05 - 3.17%			2.47 - 3.32%				2.51	%		3.00	%
Rate of compensation increase	2.80 - 3.50%			3.50 - 4.50%			N/A			N/A

73

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

	Pension Benefits						Other Postretirement Benefits
	Year ended March 31,						Year ended March 31,
	2021			2020			2021			2020
Change in fair value of plan assets
Fair value of plan assets at beginning of year	$	1,598,045		$	1,796,111		$	—		$	—
Actual return on plan assets		388,392			(20,869	)		—			—
Settlements		—			(14,579	)		—			—
Participant contributions		164			204			—			252
Divestitures		—			(55,354	)		—			—
Company contributions		41,201			51,372			2,182			8,319
Benefits paid		(179,956	)		(156,084	)		(2,182	)		(8,571	)
Currency translation adjustment		6,117			(2,756	)		—			—
Fair value of plan assets at end of year	$	1,853,963		$	1,598,045		$	—		$	—
Funded status (underfunded)
Funded status	$	(376,285	)	$	(656,940	)	$	(4,924	)	$	(7,150	)
Reconciliation of amounts recognized on the    consolidated balance sheets
Pension asset—noncurrent	$	7,515		$	1,503		$	—		$	—
Accrued benefit liability—current		(1,097	)		(753	)		(3,372	)		(4,775	)
Accrued benefit liability—noncurrent		(382,703	)		(657,690	)		(1,552	)		(2,375	)
Net amount recognized	$	(376,285	)	$	(656,940	)	$	(4,924	)	$	(7,150	)
Reconciliation of amounts recognized in    accumulated other comprehensive income
Prior service credits	$	4,621		$	5,595		$	(54,109	)	$	(59,214	)
Actuarial losses (gains)		755,234			953,913			(53,542	)		(58,151	)
Income tax (benefits) expenses related to above    items		(204,594	)		(204,594	)		42,016			42,016
Unamortized benefit plan costs (gains)	$	555,261		$	754,914		$	(65,635	)	$	(75,349	)

The components of net periodic benefit cost for fiscal years ended March 31, 2021, 2020, and 2019, are as follows:

	Pension Benefits									Other Postretirement Benefits
	Year Ended March 31,									Year Ended March 31,
	2021			2020			2019			2021			2020			2019
Components of net periodic pension    cost
Service cost	$	1,537		$	2,336		$	3,292		$	0		$	62		$	227
Interest cost		64,599			68,446			79,446			112			1,559			4,039
Expected return on plan assets		(136,581	)		(141,972	)		(145,361	)		—			—			—
Amortization of prior service credit cost		974			(874	)		(3,619	)		(5,105	)		(4,872	)		(4,655	)
Amortization of net loss		31,248			28,288			20,151			(4,766	)		(6,361	)		(9,851	)
Curtailment loss (gain)		—			23,690			—			—			(49,491	)		—
Settlements		—			29,313			—			—			—			—
Special termination benefits		—			11,642			4,032			—			—			—
Total net periodic benefit (income)    expense	$	(38,223	)	$	20,869		$	(42,059	)	$	(9,759	)	$	(59,103	)	$	(10,240	)
Assumptions used to determine net    periodic pension cost
Discount rate	2.47 - 3.32%			2.54 - 3.88%			2.65 - 4.01%				3.00	%	2.68 - 3.77%				3.93	%
Expected long-term rate of return on plan assets	5.00 - 8.00%			5.00 - 8.00%			5.00 - 8.00%			N/A			N/A			N/A
Rate of compensation increase	3.50 - 4.50%			3.50 - 4.50%			3.50 - 4.50%			N/A			N/A			N/A

74

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

The discount rate is determined annually as of each measurement date, based on a review of yield rates associated with long-term, high-quality corporate bonds. At the end of each year, the discount rate is primarily determined using the results of bond yield curve models based on a portfolio of high-quality bonds matching notional cash inflows with the expected benefit payments for each significant benefit plan.

The expected return on plan assets is determined based on a MRVA, which is a smoothed asset value.  As disclosed in Note 1, the Company changed its method of accounting or the determination of the MRVA for its fixed income securities within the qualified U.S. defined benefit plan.  For these fixed income securities, the MRVA is determined using the fair value of the fixed income assets.  For all other classes of pension assets, the MRVA is calculated by recognizing investment performance that is different from that expected on a straight-line basis over five years.  Actuarial gains and losses are amortized over the average remaining life expectancy of inactive participants for plans that are predominantly inactive and over the expected future service for active participants for other plans, but only to the extent unrecognized gains or losses exceed a corridor equal to 10% of the greater of the projected benefit obligation or market-related value of assets.

The Company estimates the service and interest cost of its pension and OPEB plans by using the specific spot rates derived from the yield curve used to discount the cash flows reflected in the measurement of the benefit obligation.  The Company believes this approach provides a precise measurement of service and interest costs due to the correlation between projected benefit cash flows to the corresponding spot yield curve rates. The Company amortizes actuarial gains and losses over the average life expectancy of inactive plan participants because almost all plan participants are inactive.

During the fiscal year ended March 31, 2021, the Society of Actuaries released a new and updated mortality projection scale.  The Company has reflected this new release in the measurement of its U.S. pension and OPEB plans as of March 31, 2021. This change resulted in a decrease in the benefit obligation.

The projected benefit obligation assumptions impacting net actuarial loss (gain) consist of changes in discount and mortality rates, as well as changes in plan experience. A significant component of the decrease in the pension plans’ actuarial losses in fiscal 2021 was the change in discount rates.

The Company periodically experiences events or makes changes to its benefit plans that result in curtailment or special charges. Curtailments are recognized when events occur that significantly reduce the expected years of future service of present employees or eliminates the benefits for a significant number of employees for some or all of their future service.

Curtailment losses are recognized when it is probable the curtailment will occur and the effects are reasonably estimable. Curtailment gains are recognized when the related employees are terminated or a plan amendment is adopted, whichever is applicable.

As required under ASC 715, the Company remeasures plan assets and obligations during an interim period whenever a significant event occurs that results in a material change in the net periodic pension cost. The determination of significance is based on judgment and consideration of events and circumstances impacting the pension costs.

The following summarizes the key events whose effects on net periodic benefit cost and obligations are included in the tables above:

• As disclosed in Note 3, in March 2020, the Company transferred approximately $55,354 of pension assets and liabilities to the buyer of its Nashville manufacturing operations.  The divestiture transaction and resulting transfer resulted in a settlement charge of approximately $28,452 and a curtailment charge of approximately $214.  These amounts are included in non-service defined benefit income on the consolidated statements of operations for the year ended March 31, 2020.

• In September 2019, the Company and the union which represents a portion of the workforce at the Company’s Grand Prairie, TX, facility, in conjunction with an announced shutdown of this facility, agreed to changes to the pension and retiree welfare plans for represented plan members. Effective April 1, 2020, all current retiree welfare benefits for the union-represented retirees and active employees will cease. A new benefit consisting of a one-time credit to Heath Reimbursement Accounts for the current retirees and their covered dependents will be provided. The Company and the union also agreed to increased pension benefits which are effective with the ratification of the agreement. This agreement resulted in a decrease of the projected other post-employment benefits ("OPEB") benefit obligation of $61,766. It also resulted in a one-time OPEB curtailment gain of $41,128. As a result of the planned shutdown, subsidized early retirement provisions within the retirement plan and the agreed-to pension benefit increases, a pension curtailment loss of $23,476 was recognized, along with a one-time charge of $11,642 for special termination benefits. The net curtailment gain and charge for special termination benefits are included in non-service defined benefit income on the consolidated statements of operations for the year ended March 31, 2020.

75

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

• In August 2019, the Company and the union which represents a portion of the workforce at the Company’s Nashville, TN, facility agreed to changes to the pension and retiree welfare plans for represented plan members.  Effective January 1, 2020, all current retiree welfare benefits for the union-represented retirees and active employees will cease. A new benefit consisting of a one-time credit to Heath Reimbursement Accounts for the current retirees and their covered dependents will be provided. The Company and the union also agreed to increased pension benefits which are effective on February 1, 2020, and the union also agreed to increased pension benefits which are effective with the ratification of the agreement. This agreement resulted in a decrease of the projected OPEB benefit obligation of $34,731. It also resulted in a one-time OPEB curtailment gain of $8,363. The agreed-to pension benefit increases resulted in an increase of the projected pension benefit obligation of $4,898. The curtailment gain is included in non-service defined benefit income on the consolidated statements of operations for the year ended March 31, 2020.

• In February 2019, the Company transferred its Global 7500 wing manufacturing operations to Bombardier. In conjunction with this transaction, the Company provided special termination pension benefits to certain pension participants who transferred employment from Triumph to Bombardier. This change resulted in the recognition of a charge of $4,032 for special termination benefits. The special termination benefits charge is included in non-service defined benefit income on the consolidated statements of operations for the year ended March 31, 2019.

Expected Pension Benefit Payments

The total estimated future benefit payments for the pension plans are expected to be paid from the plan assets and company funds. The OPEB payments reflect the Company's portion of the funding. Estimated future benefit payments from plan assets and Company funds for the next ten years are as follows:

Year	Pension Benefits		Other Postretirement Benefits*
2022	$	192,745	$	3,375
2023		163,947		169
2024		163,676		161
2025		156,660		153
2026		154,324		143
2027 - 2031		705,477		585

Plan Assets, Investment Policy and Strategy

The table below sets forth the Company's target asset allocation for fiscal 2021 and the actual asset allocations at March 31, 2021 and 2020.

		Actual Allocation
	Target Allocation	March 31,
Asset Category	Fiscal 2021	2021			2020
Equity securities	40% - 50%		50	%		42	%
Fixed income securities	40% - 50%		39			50
Alternative investment funds	0% - 10%		5			6
Other	0% - 5%		6			2
Total			100	%		100	%

Pension plan assets are invested in various asset classes that are expected to produce a sufficient level of diversification and investment return over the long-term. The investment goals are to exceed the assumed actuarial rate of return over the long-term within reasonable and prudent levels of risks and to meet future obligations.

Asset/liability studies are conducted on a regular basis to provide guidance in setting investment goals for the pension portfolio and its asset allocation. The asset allocation aims to prudently achieve a strong, risk-adjusted return while seeking to minimize funding level volatility and improve the funded status of the plans. The pension plans currently employ a liability-driven investment ("LDI") approach, where assets and liabilities move in the same direction. The goal is to limit the volatility of the funding status and cover part, but not all, of the changes in liabilities. Most of the liabilities' changes are due to interest rate movements.

To balance expected risk and return, allocation targets are established and monitored against acceptable ranges. All investment policies and procedures are designed to ensure that the plans' investments are in compliance with the Employee Retirement Income Security Act of 1974 ("ERISA"). Guidelines are established defining permitted investments within each asset class. Each investment manager has contractual guidelines to ensure that investments are made within the parameters of their asset class or in

76

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

the case of multi-asset class managers, the parameters of their multi-asset class strategy. Certain investments are not permitted at any time, including investment directly in employer securities and uncovered short sales.

The tables below provide the fair values of the Company's plan assets at March 31, 2021 and 2020, by asset category. The table also identifies the level of inputs used to determine the fair value of assets in each category (refer to Note 2 for definition of levels).

	March 31, 2021
		Level 1		Level 2		Level 3		Total
Assets
Cash and cash equivalents		$	42,003	$	—	$	—	$	42,003
Equity securities
International			164,298		—		—		164,298
U.S. equity			7,410		—		—		7,410
U.S. commingled fund			537,813		—		—		537,813
International commingled fund			42,944		—		—		42,944
Fixed income securities
Corporate bonds			—		12,231		—		12,231
Government securities			—		103,853		—		103,853
U.S. commingled fund			509,760		—		—		509,760
Other
Insurance contracts			—		—		9,813		9,813
Total investment in securities—assets		$	1,304,228	$	116,084	$	9,813	$	1,430,125
U.S. equity commingled fund									17,289
International equity commingled fund									158,447
U.S. fixed income commingled fund									59,203
International fixed income commingled fund									1,599
Government securities commingled fund									24,384
Private equity and infrastructure									95,880
Other									1,549
Total investment measured at NAV as a    practical expedient								$	358,351
Receivables									67,378
Payables									(1,892	)
Total plan assets								$	1,853,962

77

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

	March 31, 2020
	Level 1		Level 2		Level 3		Total
Assets
Cash and cash equivalents	$	35,110	$	—	$	—	$	35,110
Equity securities
International		155,389		—		—		155,389
U.S. equity		2		—		—		2
U.S. commingled fund		400,131		—		—		400,131
International commingled fund		34,014		—		—		34,014
Fixed income securities
Corporate bonds		—		23,672		—		23,672
Government securities		—		93,677		—		93,677
U.S. commingled fund		605,487		—		—		605,487
Other
Insurance contracts		—		—		910		910
Total investment in securities—assets	$	1,230,133	$	117,349	$	910	$	1,348,392
U.S. equity commingled fund								8,180
International equity commingled fund								67,101
U.S. fixed income commingled fund								73,838
International fixed income commingled fund								1,380
Government securities commingled fund								8,333
Private equity and infrastructure								89,797
Other								1,534
Total investment measured at NAV as a    practical expedient							$	250,163
Receivables								3,292
Payables								(3,802	)
Total plan assets							$	1,598,045

Cash equivalents and other short-term investments are primarily held in registered short-term investment vehicles which are valued using a market approach based on quoted market prices of similar instruments.

Public equity securities, including common stock, are primarily valued using a market approach based on the closing fair market prices of identical instruments in the principal market on which they are traded. Commingled funds that are open-ended mutual funds for which the fair value per share is determined and published by the respective mutual fund sponsor and is the basis for current observable transactions are categorized as Level 1 fair value measures.

Investments in commingled funds and private equity and infrastructure funds are carried at net asset value ("NAV") as a practical expedient to estimate fair value. The NAV is the total value of the fund divided by the number of shares outstanding. Adjustments to NAV, if any, are determined based on evaluation of data provided by fund managers, including valuation of the underlying investments derived using inputs such as cost, operating results, discounted future cash flows and market-based comparable data. In accordance with ASC 820-10, investments that are measured at NAV practical expedient are not classified in the fair value hierarchy; however, their fair value amounts are presented in these tables to permit reconciliation of the fair value hierarchy to the total plan assets disclosed in this footnote.

Corporate, government agency bonds and mortgage-backed securities are primarily valued using a market approach with inputs that include broker quotes, benchmark yields, base spreads and reported observable trades for identical or comparable instruments.

Other investments include private equity and infrastructure funds and insurance contracts. Investments in private equity and infrastructure funds are carried at estimated fair value based on NAV as a practical expedient and other appropriate adjustments to NAV as determined based on an evaluation of data provided by fund managers, including valuations of the underlying investments derived using inputs such as cost, operating results, discounted future cash flows, and market-based comparable data.

Assumptions and Sensitivities

The discount rate is determined as of each measurement date, based on a review of yield rates associated with long-term, high-quality corporate bonds. The calculation separately discounts benefit payments using the spot rates from a long-term, high-quality corporate bond yield curve.

78

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

The effect of a 25 basis-point change in discount rates as of March 31, 2021, is shown below:

		Pension Benefits			Other Postretirement Benefits
Increase of 25 basis points
Obligation	*	$	(52,031	)	$	(33	)
Net periodic expense			586			4
Decrease of 25 basis points
Obligation	*	$	54,288		$	34
Net periodic expense			(707	)		4

* Excludes impact to plan assets due to the LDI investment approach discussed above under "Plan Assets, Investment Policy and Strategy."

The long-term rate of return assumption represents the expected average rate of earnings on the funds invested to provide for the benefits included in the benefit obligations. The long-term rate of return assumption is determined based on a number of factors, including historical market index returns, the anticipated long-term asset allocation of the plans, historical plan return data, plan expenses and the potential to outperform market index returns. For fiscal 2022, the expected long-term rate of return is 5.00%- 8.00%.

Anticipated Contributions to Defined Benefit

In the year ended March 31, 2021, the Company contributed 2,849,002 shares of common stock to the separate pension plan trust with an aggregate contribution value of approximately $40,000 on the contribution date.  The Company does not expect to contribute to its qualified U.S. defined benefit pension plans during fiscal 2022.  No plan assets are expected to be returned to the Company in fiscal 2022.

16.    STOCK COMPENSATION PLANS

The Company has stock incentive plans under which employees and non-employee directors may be granted equity awards in the form of stock options with an exercise price equal to the fair value of the Company’s stock on the grant date or in the form of restricted stock or restricted stock units that vest pursuant to service conditions and, in some cases, performance or market conditions.  The stock incentive and compensation plans under which outstanding equity awards have been granted to employees, officers and non-employee directors are the Triumph Group 2018 Equity Plan (the "2018 Plan"), the Triumph Group 2013 Equity and Cash Incentive Plan (the “2013 Plan”), the 2016 Directors’ Equity Compensation Plan, as amended (the “Directors’ Plan”), and the Amended and Restated Directors’ Stock Incentive Plan (the “Prior Directors’ Plan”). The Prior Directors’ Plan expired by its terms during fiscal 2017. The current stock incentive and compensation plans used for future awards are the 2013 Plan for employees, officers and consultants, the Directors’ Plan, and the 2018 Plan. The 2018 Plan, the 2013 Plan, the Directors’ Plan, and the Prior Directors’ Plan are collectively referred to in this note as the plans.

Management and the compensation committee have utilized restricted stock and restricted stock units as its primary form of share-based incentive compensation. Restricted stock and restricted stock units that vest solely pursuant to service conditions generally vest on a grade basis over a three year period and are subject to forfeiture should the grantee’s employment be terminated prior to an applicable vesting date.  Management and the compensation committee have also granted restricted stock and restricted stock units, referred to herein as performance restricted stock awards, that vest pursuant to a combination of service conditions as well as market and performance conditions.  Such awards generally vest on a cliff vesting basis at the end of a three year service period, subject to specific market or performance conditions.  The market and performance conditions may result in the awards vesting below target, including zero vesting awards if certain threshold vesting conditions are not met, up to 200% of the number of awards granted, if certain vesting conditions are exceeded.  .The share-based payment expense arising from restricted stock and restricted stock unit expense is included in capital in excess of par value. The fair value of restricted stock or restricted stock units awards subject only to service conditions or service and performance conditions is determined by the product of the number of shares granted and the grant date market price of the Company's common stock.  The fair value of restricted stock or restricted stock units awards that contain market conditions is determined by the product of the number of shares granted and the grant date fair value of such an award value using a Monte Carlo valuation methodology.  The fair value of share-based compensation granted to employees was $13,103, $13,249, and $15,911 during the fiscal years ended March 31, 2021, 2020, and 2019, respectively.   The fair value of restricted stock and restricted stock unit awards is expensed on a straight-line basis over the requisite service period which is typically the vesting period.  The Company recognized $12,701, $11,062 and $10,259 of share-based compensation expense during the fiscal years ended March 31, 2021, 2020, and 2019, respectively. The Company has classified share-based compensation within selling, general and administrative expenses to correspond with the same line item as the majority of the cash compensation paid to employees.    

79

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

At March 31, 2021 and 2020, 2,019,502 shares and 1,564,791 shares of common stock, respectively, were available for issuance under the plans. A summary of the status of the Company's non-vested shares/units of restricted stock and deferred stock units as of March 31, 2021, and changes during the fiscal year ended March 31, 2021, is presented below.

	Shares			Weighted- Average Grant Date Fair Value
Non-vested restricted awards and deferred stock units at March 31, 2020		1,159,630		$	24.40
Granted		1,154,181			11.35
Vested		(396,847	)		20.25
Forfeited		(218,205	)		17.58
Non-vested restricted awards and deferred stock units at March 31, 2021		1,698,759		$	15.46

The fair value of employee restricted stock which vested during fiscal 2021, 2020 and 2019 was $8,037, $7,052, and $7,031, respectively.  Upon the vesting of restricted stock units, the Company first transfers treasury stock, then will issue new shares.  Expected future compensation expense on restricted stock net of expected forfeitures, is approximately $8,376, which is expected to be recognized over the remaining weighted average vesting period of 1.5 years.

17.    COMMITMENTS AND CONTINGENCIES

Certain of the Company's business operations and facilities are subject to a number of federal, state, local and foreign environmental laws and regulations. Former owners generally indemnify the Company for environmental liabilities related to the assets and businesses acquired which existed prior to the acquisition dates. In the opinion of management, there are no significant environmental contingent liabilities which would have a material effect on the financial condition or operating results of the Company which are not covered by such indemnification.  As the Company completes its restructuring plans as disclosed in Note 18, including the disposal of certain facilities, the Company may be exposed to additional costs such as environmental remediation obligations, lease termination costs, or supplier claims which may have a material effect on its financial position or results of operations when such matters arise and a reasonable estimate of the costs can be made.

The Company's risk related to pension projected obligations as of March 31, 2021, is significant. This amount is currently in excess of the related plan assets. Benefit plan assets are invested in a diversified portfolio of investments in both the equity and debt categories, as well as limited investments in real estate and other alternative investments. The market value of all of these investment categories may be adversely affected by external events and the movements and volatility in the financial markets, including such events as the current credit and real estate market conditions. Declines in the market values of the Company’s plan assets could expose the total asset balance to significant risk which may cause an increase to future funding requirements.

Some raw materials and operating supplies are subject to price and supply fluctuations caused by market dynamics. The Company's strategic sourcing initiatives seek to find ways of mitigating the inflationary pressures of the marketplace. In recent years, these inflationary pressures have affected the market for raw materials. However, the Company believes that raw material prices will remain stable through the remainder of fiscal 2022 and after that, experience increases that are in line with inflation. Additionally, the Company generally does not employ forward contracts or other financial instruments to hedge commodity price risk.

The Company's suppliers' failure to provide acceptable raw materials, components, kits and subassemblies would adversely affect production schedules and contract profitability. The Company maintains an extensive qualification and performance surveillance system to control risk associated with such supply base reliance. The Company is dependent on third parties for certain information technology services. To a lesser extent, the Company is also exposed to fluctuations in the prices of certain utilities and services, such as electricity, natural gas, chemical processing and freight. The Company utilizes a range of long-term agreements and strategic aggregated sourcing to optimize procurement expense and supply risk in these categories.

In the ordinary course of business, the Company is involved in disputes, claims and lawsuits with employees, suppliers and customers, as well as governmental and regulatory inquiries, that it deems to be immaterial. Some may involve claims or potential claims of substantial damages, fines, penalties or injunctive relief. While the Company cannot predict the outcome of any pending or future litigation or proceeding and no assurances can be given, the Company does not believe that any pending matter will have a material effect, individually or in the aggregate, on its financial position or results of operations.

80

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

18.    RESTRUCTURING COSTS

During the fiscal years ended March 31, 2017 and 2016, the Company committed to restructuring plans involving certain of its businesses, as well as the consolidation of certain of its facilities. With the exception of certain consolidations to be completed in future years, these plans were substantially complete as of March 31, 2020. During the year ended March 31, 2021, the Company incurred costs of $7,871, $36,879, and $8,474, within Systems & Support, Aerospace Structures, and its corporate headquarters, respectively, for total restructuring costs of $53,224 associated with new restructuring plans.  Of the restructuring costs within Aerospace Structures, approximately $17,737 pertained to postemployment benefits arising from reductions in force, $15,781 pertained to facility closures, and the remaining $2,937 pertained to third-party consulting and other costs.  The restructuring costs within Systems & Support and Corporate are primarily related to postemployment benefits arising from reductions in force and third-party consulting costs.  The majority of restructuring plans are complete and the related costs have been settled as of March 31, 2021, with the exception of consolidated postretirement benefits associated with reductions in force of approximately $19,260 included in accrued expenses on the accompanying consolidated balance sheet as of March 31, 2021.  

19.    CUSTOMER CONCENTRATION

Trade and other accounts receivable from Boeing represented approximately 23% and 21% of total accounts receivable as of March 31, 2021 and 2020, respectively. Trade and other accounts receivables from Bombardier represented approximately 1% and 16% of total accounts receivable as of March 31, 2021 and 2020, respectively, and include receivables from transition services. The Company had no other significant concentrations of credit risk.

Sales to Boeing for fiscal 2021 were $698,372, or 37% of net sales, of which $225,027 and $473,346 were from Systems & Support and Aerospace Structures, respectively. Sales to Boeing for fiscal 2020 were $983,763, or 34% of net sales, of which $254,660 and $729,103 were from Systems & Support and Aerospace Structures, respectively. Sales to Boeing for fiscal 2019 were $1,031,106, or 31% of net sales, of which $243,046 and $788,061 were from Systems & Support and Aerospace Structures, respectively.

Sales to Gulfstream for fiscal 2021 were less than 10% of net sales.   Sales to Gulfstream for fiscal 2020 were $337,173, or 12% of net sales, of which $3,250 and $333,924 were from Systems & Support and Aerospace Structures, respectively. Sales to Gulfstream for fiscal 2019 were $361,451, or 11% of net sales, of which $3,067 and $358,383 were from Systems & Support and Aerospace Structures, respectively.

No other single customer accounted for more than 10% of the Company's net sales; however, the loss of any significant customer, including Boeing and/or Gulfstream, could have a material adverse effect on the Company and its operating subsidiaries.

The Company currently generates a majority of its revenue from clients in the commercial aerospace industry, the business jet industry and the military. The Company's growth and financial results are largely dependent on continued demand for its products and services from clients in these industries. When these industries experiences a downturn, it is possible that customers in these sectors may conduct less business with the Company.

20.    COLLECTIVE BARGAINING AGREEMENTS

Approximately 19% of the Company's labor force is covered under collective bargaining agreements. As of March 31, 2021, none of the Company's collectively bargained workforce are working under contracts that have expired, and 16% of the Company’s collectively bargained workforce are working under contracts that are set to expire within one year.

During the fiscal year ended March 31, 2020, effects and closure agreements were made for the Tulsa, Oklahoma, and Grand Prairie, Texas, locations.  In addition, the Company and leadership of Aero Lodge No.735 of the International Association of Machinists and Aerospace Workers (“IAM”) agreed to negotiate a Memorandum of Agreement to sunset the retiree medical plans.  Both the Company and the IAM leadership full endorsed this agreement, and local IAM members voted to ratify it on August 10, 2019.  

81

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

21.    SEGMENTS

The Company reports financial performance based on the following two reportable segments: Systems & Support and Aerospace Structures. The Company’s reportable segments are aligned with how the business is managed, and the Company's views of the markets it serves. The Chief Operating Decision Maker (the "CODM") evaluates performance and allocates resources based upon review of segment information. The CODM utilizes earnings before interest, income taxes, depreciation and amortization, and pension (“Adjusted EBITDAP”) as a primary measure of segment profitability to evaluate performance of its segments and allocate resources.

Segment Adjusted EBITDAP is total segment revenue reduced by operating expenses (less depreciation and amortization) identifiable with that segment. Corporate includes general corporate administrative costs and any other costs not identifiable with one of the Company’s segments, including loss on sale of assets and businesses of $104,702 for the year ended March 31, 2021.

The Company does not accumulate net sales information by product or service or groups of similar products and services, and therefore the Company does not disclose net sales by product or service because to do so would be impracticable.

Selected financial information for each reportable segment is as follows:

	Year Ended March 31, 2021
	Total			Corporate & Eliminations			Systems & Support			Aerospace Structures
Net sales to external customers	$	1,869,719		$	—		$	1,056,822		$	812,897
Intersegment sales (eliminated in consolidation)		-			(4,653	)		3,179			1,474
Segment profit and reconciliation to consolidated income before    income taxes:
Adjusted EBITDAP		173,197			-			155,693			17,504
Reconciliation of segment profit to income (loss) before income    taxes
Depreciation and amortization		(93,334	)		(3,459	)		(33,549	)		(56,326	)
Interest expense and other, net		(171,397	)
Corporate expenses		(51,104	)
Share-based compensation expense		(12,701	)
Loss on sale of assets and businesses		(104,702	)
Amortization of acquired contract liabilities		38,564
Non-service defined benefit income		49,519
Union represented employee incentives		-
Legal judgment gain, net		-
Impairment of rotable inventory		(23,689	)
Impairment of long-lived assets		(252,382	)
Income before income taxes		(448,029	)
Total capital expenditures	$	25,178		$	1,030		$	15,239		$	8,909
Total assets	$	2,450,935		$	536,003		$	1,469,593		$	445,339

82

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

	Year Ended March 31, 2020
	Total			Corporate & Eliminations			Systems & Support			Aerospace Structures
Net sales to external customers	$	2,900,117		$	—		$	1,350,761		$	1,549,356
Intersegment sales (eliminated in consolidation)		—			(13,334	)		6,803			6,531
Segment profit and reconciliation to consolidated income before    income taxes:
Adjusted EBITDAP		305,784			—			205,352			100,432
Reconciliation of segment profit to income (loss) before income    taxes
Depreciation and amortization		(138,168	)		(3,374	)		(32,376	)		(102,418	)
Interest expense and other, net		(122,129	)
Corporate expenses		(53,082	)
Share-based compensation expense		(11,062	)
Loss on sale of assets and businesses		(56,916	)
Amortization of acquired contract liabilities		75,286
Non-service defined benefit income		40,587
Union represented employee incentives		(7,071	)
Legal judgment gain, net		9,257
Impairment of goodwill		(66,121	)
Income before income taxes		(23,635	)
Total capital expenditures	$	39,834		$	1,502		$	17,141		$	21,191
Total assets	$	2,980,333		$	481,162		$	1,478,679		$	1,020,492

	Year Ended March 31, 2019
	Total			Corporate & Eliminations			Systems & Support			Aerospace Structures
Net sales to external customers	$	3,364,930		$	—		$	1,309,474		$	2,055,456
Intersegment sales (eliminated in consolidation)		—			(22,485	)		15,537			6,948
Segment profit and reconciliation to consolidated income before    income taxes:
Adjusted EBITDAP		215,418			—			202,346			13,072
Reconciliation of segment profit to income (loss) before income    taxes
Depreciation and amortization		(149,904	)		(3,100	)		(35,373	)		(111,431	)
Interest expense and other, net		(114,619	)
Corporate expenses		(74,706	)
Share-based compensation expense		(10,259	)
Loss on sale of assets and businesses		(235,301	)
Amortization of acquired contract liabilities		67,314
Non-service defined benefit income		56,726
Loss on adoption of ASU 2017-07		(87,241	)
Income before income taxes		(332,572	)
Total capital expenditures	$	47,099		$	784		$	15,734		$	30,581

During fiscal years ended March 31, 2021, 2020, and 2019, the Company had foreign sales of $359,406, $724,193, and $960,299, respectively. The Company reports as foreign sales those sales with delivery points outside of the United States. As of March 31, 2021 and 2020, the Company had foreign long-lived assets of $213,919 and $205,243, respectively.

83

Triumph Group, Inc.

Notes to Consolidated Financial Statements

(Dollars in thousands, except per share data)

22.    Subsequent Events

As disclosed in Note 3, subsequent to March 31, 2021, we completed the sale of our manufacturing operations in Milledgeville, Georgia, Rayong, Thailand, and Red Oak, Texas, receiving net proceeds of approximately $155,000.  We intend to use approximately $120,000 of the net proceeds to redeem approximately $112,500 aggregate principal amount of the First Lien Notes at a redemption price of 106.656%, plus accrued and unpaid interest. The redemption is required by the terms of the First Lien Notes, and following the redemption, approximately $587,500 aggregate principal amount of First Lien Notes will remain outstanding. We also expect that in the first quarter of fiscal 2022 we will use available cash to redeem all $236,471 aggregate principal outstanding amount of our 2022 Notes at a redemption price of 100.000%, plus accrued and unpaid interest.  Subsequent to this redemption, we will have no material outstanding indebtedness maturing before 2024.

In addition, as a result of the completed sale of these manufacturing operations, the Company expects to recognize a curtailment loss in the range of $10,000 to $20,000.

84

TRIUMPH GROUP, INC.

SCHEDULE II—VALUATION AND QUALIFYING ACCOUNTS

(in thousands)

	Balance at beginning of year		Additions charged to (income) expense			Other (1)		Balance at end of year
For year ended March 31, 2021:
Deferred tax assets valuation allowance	$	438,667		114,283			15,223	$	568,173
For year ended March 31, 2020:
Deferred tax assets valuation allowance	$	399,013		(3,474	)		43,128	$	438,667
For year ended March 31, 2019:
Deferred tax assets valuation allowance	$	146,770		93,311			158,932	$	399,013

(1) Adjustments relate to changes in defined benefit pension plan and other postretirement benefit plan obligations.  The adjustment in the year ended March 31, 2019, also included an adjustment of approximately $132,000 as a result of the adoption of ASC 606.

85

Item 9.  Changes in and Disagreements With Accountants on Accounting and Financial Disclosure

None.

Item 9A.  Controls and Procedures

Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed in our Exchange Act reports is recorded, processed, summarized and reported within the time periods specified in the SEC's rules and forms, and that such information is accumulated and communicated to our management, including our principal executive officer and principal financial officer, as appropriate, to allow timely decisions regarding required disclosure. In designing and evaluating the disclosure controls and procedures, management recognized that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and management necessarily was required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures.

As of March 31, 2021, we completed an evaluation, under the supervision and with the participation of our management, including our principal executive officer and principal financial officer, of the effectiveness of the design and operation of our disclosure controls and procedures. Based on the foregoing, our principal executive officer and principal financial officer concluded that our disclosure controls and procedures were effective at the reasonable assurance level as of March 31, 2021.

86

MANAGEMENT'S REPORT ON INTERNAL CONTROL OVER FINANCIAL REPORTING

The management of Triumph Group, Inc. ("Triumph") is responsible for establishing and maintaining adequate internal control over financial reporting as defined in Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934. Triumph's internal control system over financial reporting is designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with U.S. generally accepted accounting principles. The Company's internal control over financial reporting includes those policies and procedures that:

(i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company;

(ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with U.S. generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and

(iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of the company's assets that could have a material effect on the financial statements.

Because of inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Therefore, even those systems determined to be effective can provide only reasonable assurance with respect to financial statement preparation and presentation. Also, projections of any evaluation of effectiveness to future periods are subject to risk that controls may become inadequate because of changes in condition, or that the degree of compliance with the policies or procedures may deteriorate.

Triumph's management assessed the effectiveness of Triumph's internal control over financial reporting as of March 31, 2021. In making this assessment, management used the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) ("COSO") in Internal Control—Integrated Framework. Based on management's assessment and those criteria, management believes that Triumph maintained effective internal control over financial reporting as of March 31, 2021.

Triumph's independent registered public accounting firm, Ernst & Young LLP, has audited Triumph's effectiveness of internal control over financial reporting. This report appears on the following page.

/s/ Daniel J. Crowley

Daniel J. Crowley

Chairman, President, and Chief Executive Officer

/s/ James F. McCabe, Jr.

James F. McCabe, Jr.

Senior Vice President and

Chief Financial Officer

/s/ Thomas A. Quigley, III

Thomas A. Quigley, III

Vice President and Controller

May 20, 2021

87

Report of Independent Registered Public Accounting Firm

To the Board of Directors and Stockholders of Triumph Group, Inc.

Opinion on Internal Control Over Financial Reporting

We have audited Triumph Group, Inc.’s internal control over financial reporting as of March 31, 2021, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) (the “COSO criteria”). In our opinion, Triumph Group, Inc. (the “Company”) maintained, in all material respects, effective internal control over financial reporting as of March 31, 2021, based on the COSO criteria.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) ("PCAOB"), the consolidated balance sheets of Triumph Group, Inc. as of March 31, 2021 and 2020, the related consolidated statements of operations, comprehensive loss, stockholders’ (deficit) equity and cash flows for each of the three years in the period ended March 31, 2021, and the related notes and financial statement schedule listed in the Index at Item 15(a) and our report dated May 20, 2021, expressed an unqualified opinion thereon.

Basis for Opinion

The Company’s management is responsible for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting included in the accompanying Management’s Report on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects.

Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control Over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ Ernst & Young LLP

Philadelphia, Pennsylvania

May 20, 2021

88

Changes in Internal Control Over Financial Reporting

In addition to management's evaluation of disclosure controls and procedures as discussed above, we continue to review and enhance our policies and procedures for internal control over financial reporting.

We have developed and implemented a formal set of internal controls and procedures for financial reporting in accordance with the SEC's rules regarding management's report on internal controls. As a result of continued review and testing by management and by our internal and independent auditors, or as a result of newly adopted accounting standards, additional changes may be made to our internal controls and procedures. However, we did not make any changes to our internal control over financial reporting in the fourth quarter of fiscal 2020 that has materially affected or is reasonably likely to materially affect our internal control over financial reporting.

Item 9B.  Other Information

None.

89

PART III

Item 10.  Directors, Executive Officers and Corporate Governance

The information required for directors and executive officers is incorporated herein by reference to our definitive 2021 Proxy Statement for our 2021 Annual Meeting of Stockholders.

Delinquent Section 16(a) Reports

The information required regarding Section 16(a) beneficial ownership reporting compliance is incorporated herein by reference to the 2021 Proxy Statement.

Code of Business Conduct

The information required regarding our Code of Business Conduct is incorporated herein by reference to the 2021 Proxy Statement.

Stockholder Nominations

The information required with respect to any material changes to the procedures by which stockholders may recommend nominees to the Company's board of directors is incorporated herein by reference to the 2021 Proxy Statement.

Audit Committee and Audit Committee Financial Expert

The information required with respect to the Audit Committee and Audit Committee financial experts is incorporated herein by reference to the 2021 Proxy Statement.

Item 11.  Executive Compensation

The information required under this item is incorporated herein by reference to the 2021 Proxy Statement.

Item 12.  Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

The information required under this item is incorporated herein by reference to the 2021 Proxy Statement.

Item 13.  Certain Relationships and Related Transactions and Director Independence

The information required under this item is incorporated herein by reference to the 2021 Proxy Statement.

Item 14.  Principal Accountant Fees and Services

The information required under this item is incorporated herein by reference to the 2021 Proxy Statement.

90

PART IV

Item 15.  Exhibits, Financial Statement Schedules

(a) Financial Statements

(1) The following consolidated financial statements are included in Item 8 of this report:

Triumph Group, Inc.	Page
Consolidated Balance Sheets as of March 31, 2021 and 2020	45
Consolidated Statements of Operations for the Fiscal Years Ended March 31, 2021, 2020, and 2019	46
Consolidated Statements of Comprehensive Loss for the Fiscal Years Ended March 31, 2021, 2020, and 2019	47
Consolidated Statements of Stockholders' Equity (Deficit) for the Fiscal Years Ended March 31, 2021, 2020, and 2019	48
Consolidated Statements of Cash Flows for the Fiscal Years Ended March 31, 2021, 2020, and 2019	49
Notes to Consolidated Financial Statements	50
Report of Ernst & Young LLP, Independent Registered Public Accounting Firm	88

(2) The following financial statement schedule is included in this report:

	Page
Schedule II—Valuation and Qualifying Accounts	85

All other schedules have been omitted as not applicable or because the information is included elsewhere in the consolidated financial statements or notes thereto.

(3) The following is a list of exhibits. Where so indicated, exhibits which were previously filed are incorporated by reference.

Exhibit Number	Exhibit Description	Incorporated by Reference to
		Form	File No.	Exhibit(s)	Filing Date
3.1	Amended and Restated Certificate of Incorporation of Triumph Group, Inc.	10-K	001-12235	3.1	May 22, 2009
3.2	Certificate of Amendment of Amended and Restated Certificate of Incorporation of Triumph Group, Inc.	8-K	001-12235	3.1	July 20, 2012
3.3	Form of Certificate of Designations, Preferences and Rights of Series B Junior Participating Preferred Stock	8-K	001-12235	3.1	March 13, 2019
3.4	Certificate of Amendment to Amended and Restated Certificate of Incorporation of Triumph Group, Inc.	8-K/A	001-12235	3.1	August 5, 2019
3.5	Amended and Restated By-Laws of Triumph Group, Inc.	8-K	001-12235	3.1	April 26, 2019
4.1	Form of Certificate evidencing Common Stock of Triumph Group, Inc.	8-K	001-12235	4.2	March 13, 2019
4.2	Indenture, dated as of February 26, 2013, between Triumph Group, Inc. and U.S. Bank National Association, as trustee	8-K	001-12235	4.1	March 1, 2013
4.2.1	Form of 4.875% Senior Subordinated Notes due 2021(included as Exhibit A to Exhibit 4.1)	8-K	001-12235	4.2	March 1, 2013
4.3	Indenture, dated as of June 3, 2014, between Triumph Group, Inc. and U.S. Bank National Association, as trustee	8-K	001-12235	4.1	June 5, 2014
4.3.1	Form of 5.250% Senior Notes due 2022 (included as Exhibit A to the Indenture filed as Exhibit 4.1)	8-K	001-12235	4.2	June 5, 2014
4.4	Second Supplemental Indenture dated as of May 18, 2016 by and among Triumph Group, Inc., the guarantors signatory thereto and U.S. Bank National Association, as trustee, relating to the 4.875% Senior Notes due 2021	10-K	001-12235	4.12	May 27, 2016
4.5	Indenture, dated as of August 17, 2017, between Triumph Group, Inc. and U.S. Bank National Association, as trustee	8-K	001-12235	4.1	August 18, 2017
4.6	Form of 7.750% Senior Notes due 2025 (included as Exhibit A to the Indenture filed as Exhibit 4.1).	8-K	001-12235	4.2	August 18, 2017
4.7	Indenture, dated as of September 23, 2019, between Triumph Group, Inc., the subsidiary guarantors signatory thereto and U.S. Bank National Association, as trustee.	10-Q	001-12235	4.1	November 7, 2019
4.8	Form of 6.250% Senior Secured Notes due 2024 (included as Exhibit A to the Indenture filed as Exhibit 4.1).	10-Q	001-12235	4.1	November 7, 2019
4.9	Tax Benefits Preservation Plan, dated as of March 13, 2019, between Triumph Group, Inc. and Computershare Trust Company, N.A.	8-K	001-12235	4.1	March 13, 2019

91

Exhibit Number	Exhibit Description	Incorporated by Reference to
		Form	File No.	Exhibit(s)	Filing Date
4.10	Description of Securities	10-K	001-12235	4.8	May 23, 2019
4.11	Indenture, dated as of August 17, 2020, among Triumph Group, Inc., the subsidiary guarantors signatory thereto and U.S. Bank National Association, as trustee for the Notes.	8-K	001-12235	4.1	August 18, 2020
4.12	Form of 8.875% Senior Secured First Lien Notes due 2024.	8-K	001-12235	4.2	August 18, 2020
4.13	Twenty-Sixth Amendment dated August 17, 2020 among Triumph Receivables, LLC as seller, Triumph Group, Inc. as servicer, and PNC Bank, National Association, as a related committed purchaser, purchaser agent, and administrator.	8-K	001-12235	4.3	August 18, 2020
4.14	Fourth Amendment to Performance Guaranty, dated August 17, 2020 among Triumph Group, Inc. as performance guarantor, and PNC Bank, National Association, as purchaser agent, and administrator.	8-K	001-12235	4.4	August 18, 2020
4.15	Amended and Restated Receivables Purchase Agreement, dated as of September 29, 2020, among Triumph Receivables, LLC, as seller, Triumph Group, Inc., as servicer, the various purchasers, LC participants and purchaser agents from time to time party thereto, PNC Bank, National Association, as administrator and as LC bank and PNC Capital Markets LLC, as structuring agent.	8-K	001-12235	4.1	October 5, 2020
4.16	Amended and Restated Purchase and Sale Agreement, dated as of September 29, 2020, among various entities listed therein, as the originators, Triumph Group, Inc., individually and as servicer and Triumph Receivables, LLC.	8-K	001-12235	4.2	October 5, 2020
4.17	Amended and Restated Performance Guaranty, dated as of September 29, 2020, by Triumph Group, Inc. in favor of PNC Bank, National Association, as administrator.	8-K	001-12235	4.3	October 5, 2020
10.1	Amended and Restated Directors’ Stock Incentive Plan	10-K	001-12235	10.1	May 29, 2012
10.1.1	Form of Deferred Stock Unit Award Agreement under the Amended and Restated Directors’ Stock Incentive Plan	10-K	001-12235	10.2	May 30, 2013
10.2	Triumph Group, Inc. 2004 Stock Incentive Plan*	10-K	001-12235	10.3	May 30, 2013
10.2.1	Form of Stock Award Agreement under the 2004 Stock Incentive Plan*	10-K	001-12235	10.7	May 22, 2009
10.2.2	Form of letter confirming Stock Award Agreement under the 2004 Stock Incentive Plan*	10-K	001-12235	10.8	May 22, 2009
10.3	Triumph Group, Inc. Supplemental Executive Retirement Plan effective January 1, 2003*	10-K	001-12235	10.17	June 12, 2003
10.4	Compensation for the non-employee members of the Board of Directors of Triumph Group, Inc.	8-K	001-12235	10.1	November 15, 2016
10.6	Form of Receivables Purchase Agreement, dated August 7, 2008, by and among the Triumph Group, Inc., as Initial Servicer, Triumph Receivables, LLC, as Seller, the various Purchasers and Purchase Agents from time to time party thereto and PNC National Association, as Administrative Agent.	8-K	001-12235	10.1	August 12, 2008
10.7	Third Amendment to Receivables Purchase Agreement, dated as of June 21, 2010, by and among Triumph Receivables LLC, Triumph Group, Inc., Market Street Funding LLC and PNC Bank, National Association	8-K	001-12235	10.1	June 25, 2010
10.8	Triumph Group, Inc. Executive Incentive Plan, effective September 28, 2010 *	10-Q	001-12235	10.1	November 5, 2010
10.9	Form of letter informing Triumph Group, Inc. executives they are eligible to participate in the Company’s Long Term Incentive Plan *	10-K	001-12235	10.22	May 18, 2011
10.10	Form of letter informing Triumph Group, Inc. executives they have earned an award under the Company’s Long Term Incentive Plan and the amount of the award *	10-K	001-12235	10.23	May 18, 2011

92

Exhibit Number	Exhibit Description	Incorporated by Reference to
		Form	File No.	Exhibit(s)	Filing Date
10.11	Sixth Amendment to Receivables Purchase Agreement, dated as of February 26, 2013, by and among Triumph Receivables LLC, Triumph Group, Inc., Market Street Funding LLC and PNC Bank, National Association	8-K	001-12235	10.1	March 1, 2013
10.12	Form of Third Amended and Restated Credit Agreement, dated as of November 19, 2013, by and among Triumph Group, Inc., and the other Borrowers party thereto and the Guarantors party thereto and the Banks party thereto and PNC Bank, National Association, as Administrative Agent, PNC Capital Markets LLC, J.P. Morgan Securities, LLC, RBC Capital Markets, RBS Citizens, N.A., and Santander Bank, N.A., as Joint Lead Arrangers and Joint Bookrunners, JPMorgan Chase Bank N.A., Royal Bank of Canada, Citizens Bank of Pennsylvania, and Santander Bank, N.A., as Syndication Agents, the Bank of Tokyo-Mitsubishi UFJ, Ltd, U.S. Bank National Association, TD Bank, N.A., and Manufacturers and Traders Trust Company, as Documentation Agents	8-K	001-12235	10.1	November 25, 2013
10.13	Form of Second Amended and Restated Guarantee and Collateral Agreement made by Triumph Group, Inc., and certain of its Subsidiaries in favor of PNC Bank, National Association, as Administrative Agent and as Collateral Agent for the other Secured Parties identified herein, dated as of November 19, 2013	8-K	001-12235	10.2	November 25, 2013
10.14	Triumph Group, Inc. 2013 Equity and Cash Incentive Plan, as amended and restated as of June 7, 2017*	8-K	001-12235	99.1	June 12, 2017
10.15	Form of letter regarding eligibility to participate in the Triumph Group, Inc. Restricted Stock Plan*	10-K	001-12235	10.24	May 19, 2014
10.16	Tenth Amendment to Receivables Purchase Agreement dated as of November 25, 2014	8-K	001-12235	10.1	November 26, 2014
10.17	Third Amendment to Third Amended and Restated Credit Agreement, dated as of February 3, 2015, by and among Triumph Group, Inc. and the other Borrowers party thereto and the Guarantors party thereto and the Banks party thereto and PNC Bank, National Association, as Administrative Agent	10-Q	001-12235	10.1	February 9, 2015
10.18	The First Amendment of the Triumph Group, Inc. Supplemental Executive Retirement Plan, effective as of May 1, 2015 *	8-K	001-12235	10.1	May 7, 2015
10.19	First Amendment to Triumph Group, Inc. 2013 Employee Stock Purchase Plan *	10-Q	001-12235	10.1	August 4, 2015
10.20	Employment Agreement between Triumph Group, Inc. and Daniel J. Crowley, dated as of April 1, 2016*	8-K	001-12235	10.1	April 7, 2016
10.21	Form of Sixth Amendment to Third Amended and Restated Credit Agreement, dated May 3, 2016	8-K	001-12235	10.1	May 4, 2016
10.22	Employment letter between Triumph Group, Inc. and James F. McCabe dated July 26, 2016 *	8-K	001-12235	10.1	July 27, 2016
10.23	Form of Seventh Amendment to Third Amended and Restated Credit Agreement, dated October 21, 2016	10-Q	001-12235	10.1	November 9, 2016
10.24	Triumph Group, Inc. Directors' Deferred Compensation Plan, effective January 1, 2017	8-K	001-12235	10.2	November 15, 2016
10.25	Eighth Amendment to the Third Amended and Restated Credit Agreement, dated May 1, 2017	8-K	001-12235	10.1	May 10, 2017
10.26	Form of the 2016 Directors' Equity Compensation Plan, as amended	10-K/A	001-12235	10.34	May 26, 2017
10.27	Form of Restricted Stock Unit Agreement under the 2016 Directors' Equity Compensation Plan, as amended	10-K/A	001-12235	10.35	May 26, 2017
10.28	Triumph Group, Inc. Directors' Deferred Compensation Plan, effective January 1, 2017	8-K	001-12235	10.2	November 15, 2016

93

Exhibit Number	Exhibit Description	Incorporated by Reference to
		Form	File No.	Exhibit(s)	Filing Date
10.29	Twentieth Amendment to Receivables Purchase Agreement dated as of November 3, 2017	8-K	001-12235	10.1	November 7, 2017
10.30	Ninth Amendment to the Third Amended and Restated Credit Agreement, dated July 31, 2017	10-Q	001-12235	10.1	November 8, 2017
10.31	Employment Letter between Triumph Group, Inc. and Peter Wick dated January 20, 2018 *	10-Q	001-12235	10.1	February 7, 2018
10.32	Triumph Group, Inc. 2018 Equity Incentive Plan, effective May 29, 2018*	8-K	001-12235	10.1	June 4, 2018
10.32.1	Amendment to Triumph Group, Inc. 2018 Equity Incentive Plan, effective February 19, 2018*	10-K	001-12235	10.32.1	May 23, 2019
10.32.2	Form of Long-Term Incentive Award Letter under the 2018 Equity Incentive Plan*	10-K	001-12235	10.32.2	May 23, 2019
10.33	Triumph Group, Inc. 2018 Executive Cash Incentive Compensation Plan, effective April 1, 2018*	8-K	001-12235	10.2	June 4, 2018
10.33.1	Form of Short-Term Cash Incentive Award Letter under the 2018 Executive Cash Incentive Compensation Plan*	10-K	001-12235	10.33.1	May 23, 2019
10.34	Tenth Amendment to the Third Amended and Restated Credit Agreement, dated July 19, 2018	8-K	001-12235	10.1	July 20, 2018
10.35	Separation Agreement Triumph Group, Inc. and John B. Wright, dated January 7, 2019*	8-K/A	001-12235	10.1	January 25, 2019
10.36	Separation Agreement Triumph Group, Inc. and Michael Abram, dated January 7, 2019*	8-K/A	001-12235	10.2	January 25, 2019
10.37	Separation Agreement between Triumph Group, Inc. and Thomas Holzthum, dated February 15, 2019*	8-K/A	001-12235	10.1	February 22, 2019
10.38	Employment Letter between Triumph Group, Inc. and Lance Turner, dated September 5, 2017*	10-K	001-12235	10.33.1	May 23, 2019
10.39	Employment Letter between Triumph Group, Inc. and Daniel Ostrosky, dated March 25, 2015, with Addendum dated April 10, 2015*	10-K	001-12235	10.33.1	May 23, 2019
10.40	Triumph Group, Inc. Executive General Severance Plan, effective February 19, 2019*	10-K	001-12235	10.40	May 23, 2019
10.41	Triumph Group, Inc. Executive Change in Control Severance Plan, effective February 19, 2019*	10-K	001-12235	10.41	May 23, 2019
10.42	Eleventh Amendment to the Third Amended and Restated Credit Agreement, dated September 23, 2019	10-Q	001-12235	10.1	November 7, 2019
10.43	Twelfth Amendment to the Third Amended and Restated Credit Agreement, dated May 22, 2020	10-K	001-12235	10.43	May 28, 2020
10.44	Twenty-Fifth Amendment to the Receivables Purchase Agreement dated as of December 6, 2019 (Incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on December 9, 2019)	8-K	001-12235	10.1	December 9, 2019
10.45	Employment Letter between Triumph Group, Inc. and Jennifer Allen, dated August 14, 2018	10-K	001-12235	10.45	May 28, 2020
10.46	Amendment No. 1 to Triumph Group, Inc. Executive Change In Control Severance Plan.*	10-Q	001-12235	10.2	August 5, 2020
10.47	Amendment No. 2 to Triumph Group, Inc. Executive Change In Control Severance Plan.*	10-Q	001-12235	10.3	August 5, 2020
10.48	Intercreditor Agreement, dated August 17, 2020 between Wilmington Trust, National Association, as collateral trustee, and U.S. Bank National Association, as second lien collateral agent for the 2024 Notes.	8-K	001-12235	10.1	August 18, 2020
10.49	Collateral Trust Agreement, dated August 17, 2020 among the Company, the subsidiary guarantors signatory thereto, Wilmington Trust, National Association, as collateral trustee, and U.S. Bank National Association, as trustee for the Notes.	8-K	001-12235	10.2	August 18, 2020
10.50	Employment Agreement between Triumph Group, Inc. and Daniel J. Crowley, dated as of November 17, 2020.*	8-K	001-12235	10.1	November 18, 2020

94

Exhibit Number	Exhibit Description	Incorporated by Reference to
		Form	File No.	Exhibit(s)	Filing Date
10.51	Separation Agreement effective as of April 11, 2021, between Triumph Group, Inc. and Daniel J. Ostrosky.*	8-K	001-12235	10.1	April 13, 2021
18.1	Preferability Letter from Ernst & Young LLP, Independent Registered Public Accounting Firm, Regarding Change in Accounting Principle.	10-Q	001-12235	18.1	November 5, 2020
21.1	Subsidiaries of Triumph Group, Inc.	#	#	#	#
22.1	List of Subsidiary Guarantors and Issuers of Guaranteed Securities.	#	#	#	#
23.1	Consent of Ernst & Young LLP, Independent Registered Public Accounting Firm	#	#	#	#
31.1	Principal Executive Officer Certification Required by Rule 13a-14(a) or Rule 15d-14(a) under the Securities Exchange Act of 1934, as amended.	#	#	#	#
31.2	Principal Financial Officer Certification Required by Rule 13a-14(a) or Rule 15d-14(a) under the Securities Exchange Act of 1934, as amended.	#	#	#	#
32.1	Principal Executive Officer Certification Required by Rule 13a-14(b) or Rule 15d-14(b) under the Securities Exchange Act of 1934, as amended, and 18 U.S.C. Section 1350.	##	##	##	##
32.2	Principal Financial Officer Certification Required by Rule 13a-14(b) or Rule 15d-14(b) under the Securities Exchange Act of 1934, as amended, and 18 U.S.C. Section 1350.	##	##	##	##
99.1	Revisions to Triumph Group, Inc.’s Annual Report on Form 10-K for the fiscal year ended March 31, 2020.	8-K	001-12235	99.1	December 17, 2020
99.2	Revisions to Triumph Group, Inc.’s Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2020:	8-K	001-12235	99.2	December 17, 2020
99.3	Temporary Hardship Exemption.	8-K	001-12235	99.3	December 17, 2020
101	The following financial information from Triumph Group, Inc.’s Annual Report on Form 10-K for the fiscal year ended March 31, 2021 formatted in iXBRL: (i) Consolidated Balance Sheets as of March 31, 2021 and 2020; (ii) Consolidated Statements of Operations for the fiscal years ended March 31, 2021, 2020, and 2019; (iii) Consolidated Statements of Stockholders’ Equity (Deficit) for the fiscal years ended March 31, 2021, 2020, and 2019; (iv) Consolidated Statements of Cash Flows for the fiscal years ended March 31, 2021, 2020, and 2019; (v) Consolidated Statements of Comprehensive Loss for the fiscal years ended March 31, 2021, 2020, and 2019; and (vi) Notes to the Consolidated Financial Statements	#	#	#	#
104	Cover Page Interactive Data File, formatted in iXBRL and contained in Exhibit 101.	#	#	#	#

In accordance with Item 601(b)(4)(iii)(A) of Regulations S-K, copies of specific instruments defining the rights of holders of long-term debt of the Company or its subsidiaries are not filed herewith. Pursuant to this regulation, we hereby agree to furnish a copy of any such instrument to the SEC upon request

* Indicates management contract or compensatory plan or arrangement

# Filed herewith

## Furnished herewith

Item 16.  Form 10-K Summary

The Registrant has elected not to include a summary.

95

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this report to be signed by the undersigned, thereunto duly authorized.

		TRIUMPH GROUP, INC.
			/s/ Daniel J. Crowley
Dated:	May 20, 2021	By:	Daniel J. Crowley Chairman, President, Chief Executive Officer and Director (Principal Executive Officer)

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated.

	Chairman, President, Chief Executive Officer and Director	May 20, 2021
/s/ Daniel J. Crowley	(Principal Executive Officer)
Daniel J. Crowley
	Senior Vice President and Chief Financial Officer	May 20, 2021
/s/ James F. McCabe, Jr.	(Principal Financial Officer)
James F. McCabe, Jr.
	Vice President, Investor Relations and Controller	May 20, 2021
/s/ Thomas A. Quigley III	(Principal Accounting Officer)
Thomas A. Quigley III
/s/ Ralph E. Eberhart	Lead Independent Director	May 20, 2021
Ralph E. Eberhart
/s/ Paul Bourgon	Director	May 20, 2021
Paul Bourgon
/s/ Daniel P. Garton	Director	May 20, 2021
Daniel P. Garton
/s/ Richard Goglia	Director	May 20, 2021
Richard Goglia
/s/ Barbara Humpton	Director	May 20, 2021
Barbara Humpton
/s/ William L. Mansfield	Director	May 20, 2021
William L. Mansfield
/s/ Colleen C. Repplier	Director	May 20, 2021
Colleen C. Repplier
/s/ Larry O. Spencer	Director	May 20, 2021
Larry O. Spencer

96

EX-21.1

Exhibit 21.1

Subsidiaries of Triumph Group, Inc.

HT Parts, L.L.C.

Nu-Tech Brands, Inc.

Placas Termodinamicas, S. de R.L. de C.V.

SBP Holdings Limited

The Mexmil Holding Company, LLC

The Triumph Group Operations, Inc.

Triumph Accessory Services - Grand Prairie, Inc.

Triumph Actuation Systems - Connecticut, LLC

Triumph Actuation Systems - Isle of Man, Ltd.

Triumph Actuation Systems - UK, Ltd.

Triumph Actuation Systems - Valencia, Inc.

Triumph Actuation Systems - Yakima, LLC

Triumph Actuation Systems, LLC

Triumph Aerospace Operations UK, Ltd.

Triumph Aerospace Systems Group - UK LTD

Triumph Aerospace Systems Group, LLC

Triumph Aerospace Operations Japan, GK

Triumph Aerostructures - Tulsa, LLC

Triumph Aerostructures Holdings, LLC

Triumph Aerostructures Real Estate Investment Co., LLC

Triumph Aerostructures Vought Aircraft Technical Services (Chengdu) Co., Ltd.

Triumph Aerostructures, LLC

Triumph Aftermarket Services Group, LLC

Triumph Airborne Structures, LLC

Triumph Aviation Services Asia, Ltd.

Triumph Aviations Inc.

Triumph Brands, Inc.

Triumph Composite Systems, Inc.

Triumph Controls (Europe) SAS

Triumph Controls - Germany GmbH

Triumph Controls - UK Ltd.

Triumph Controls France SAS

Triumph Controls, LLC

Triumph Engine Control Holdings, Inc.

Triumph Engine Control Systems, LLC

Triumph Engineered Solutions, Inc.

Triumph Engineering Services, Inc.

Triumph Fabrications - Orangeburg, Inc.

Triumph Gear Systems - Macomb, Inc.

Triumph Gear Systems - Toronto ULC

Triumph Gear Systems, Inc.

Triumph Group - Mexico Inmobiliaria, S. de R.L. de C.V.

Triumph Group - Mexico, S. de R.L. de C.V.

Triumph Group Acquisition Corp.

Triumph Group Acquisition Financing, LLC

Triumph Group Acquisition Holdings, Inc.

Triumph Group Charitable Foundation

Triumph Group Holdings - Mexico, LLC

Triumph Group Holdings - UK, Ltd.

Triumph Group Investment - Mexico, LLC

Triumph Group Investments LLC

Triumph Group Luxembourg Finance S.a.r.l.

Triumph Group Luxembourg Holding S.a.r.l.

Triumph Instruments - Burbank, Inc.

Triumph Instruments, Inc.

Triumph Insulation Systems - Germany GmbH

Triumph Insulation Systems, LLC

Triumph Integrated Aircraft Interiors Inmobiliaria, S. de R.L. de C.V.

Triumph Integrated Aircraft Interiors, Inc.

Triumph Investment Holdings, Inc.

Triumph Metals Company

Triumph Precision Castings Co.

Triumph Real Estate - Mexico, LLC

Triumph Receivables, LLC

Triumph Structures (Thailand) Ltd.

Triumph Structures - Kansas City, Inc.

Triumph Structures - Wichita, Inc.

Triumph Structures International, Ltd

Triumph Thermal Systems - Maryland, Inc.

Triumph Thermal Systems, LLC

Triumph Turbine Services, Inc.

VAC Industries, Inc.

EX-22.1

Exhibit 22.1

The following subsidiaries of Triumph Group, Inc. are Subsidiary Guarantors with respect to the Senior Notes:

Guarantor	Jurisdiction
HT PARTS, L.L.C.	Delaware
NU-TECH BRANDS, INC.	Delaware
THE TRIUMPH GROUP OPERATIONS, INC.	Delaware
TRIUMPH ACCESSORY SERVICES - GRAND PRAIRIE, INC.	Delaware
TRIUMPH ACTUATION SYSTEMS - CONNECTICUT, LLC	Delaware
TRIUMPH ACTUATION SYSTEMS - VALENCIA, INC.	Delaware
TRIUMPH ACTUATION SYSTEMS - YAKIMA, LLC	Delaware
TRIUMPH ACTUATION SYSTEMS, LLC	Delaware
TRIUMPH AEROSPACE SYSTEMS GROUP, LLC	Delaware
TRIUMPH AEROSTRUCTURES - TULSA, LLC	Delaware
TRIUMPH AEROSTRUCTURES HOLDINGS, LLC	Delaware
TRIUMPH AEROSTRUCTURES, LLC	Delaware
TRIUMPH AEROSTUCTURES REAL ESTATE INVESTMENT CO., LLC	Delaware
TRIUMPH AFTERMARKET SERVICES GROUP, LLC	Delaware
TRIUMPH AIRBORNE STRUCTURES, LLC	Arkansas
TRIUMPH AVIATIONS INC.	Arkansas
TRIUMPH BRANDS, INC.	Delaware
TRIUMPH COMPOSITE SYSTEMS, INC.	Delaware
TRIUMPH CONTROLS, LLC	Delaware
TRIUMPH ENGINE CONTROL HOLDINGS, INC.	Delaware
TRIUMPH ENGINE CONTROL SYSTEMS, LLC	Delaware
TRIUMPH ENGINEERED SOLUTIONS, INC.	Delaware
TRIUMPH ENGINEERING SERVICES, INC.	Delaware
TRIUMPH FABRICATIONS - ORANGEBURG, INC.	Illinois
TRIUMPH GEAR SYSTEMS - MACOMB, INC.	Michigan
TRIUMPH GEAR SYSTEMS, INC.	Delaware
TRIUMPH GROUP ACQUISITION CORP.	Delaware
TRIUMPH GROUP ACQUISITION HOLDINGS, INC.	Delaware
TRIUMPH INSTRUMENTS – BURBANK, INC.	Delaware
TRIUMPH INSULATION SYSTEMS, LLC	Nevada
TRIUMPH INTEGRATED AIRCRAFT INTERIORS, INC.	Delaware
TRIUMPH INVESTMENT HOLDINGS, INC.	Nevada
TRIUMPH STRUCTURES - KANSAS CITY, INC.	Missouri
TRIUMPH STRUCTURES - WICHITA, INC.	Delaware
TRIUMPH THERMAL SYSTEMS - MARYLAND, INC.	Delaware
TRIUMPH THERMAL SYSTEMS, LLC	Delaware
TRIUMPH TURBINE SERVICES, INC.	Delaware
VAC INDUSTRIES, INC.	Delaware

EX-23.1

Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the following Registration Statements:

1) Registration Statements (Form S-8 No. 333-36957 and Form S-8 No. 333-50056) pertaining to the 1996 Stock Option Plan of Triumph Group, Inc.,

2) Registration Statements (Form S-8 No. 333-81665 and Form S-8 No. 333-134861) pertaining to the Amended and Restated Directors’ Stock Incentive Plan of Triumph Group, Inc.,

3) Registration Statement (Form S-8 No. 333-125888) pertaining to the 2004 Stock Incentive Plan of Triumph Group, Inc.,

4) Registration Statement (Form S-8 No. 333-192537) pertaining to the 2013 Employee Stock Purchase Plan of Triumph Group, Inc.,

5) Registration Statement (Form S-8 No. 333-192538) pertaining to the 2013 Equity and Cash Incentive Plan of Triumph Group, Inc.,

6) Registration Statement (Form S-8 No. 333-211676) pertaining to the Time-Based Restricted Stock Award Agreement of Triumph Group, Inc.,

7) Registration Statement (Form S-8 No. 333-219486) pertaining to the 2016 Directors’ Equity Compensation Plan of Triumph Group, Inc.,

8) Registration Statement (Form S-8 No. 333-226640) pertaining to the 2018 Equity Incentive Plan,

9) Registration Statement (Form S-8 No. 333-249980) pertaining to the Amended and Restated 2018 Equity Incentive Plan,

10) Registration Statement (Form S-3 No. 333-235454) pertaining to the resale of certain shares of common stock by Vought Industries Inc., Master Defined Benefit Trust,

11) Registration Statement (Form S-3 No. 333-239-098) pertaining to the offer and sale of securities up to a proposed aggregate offering price of $600,000,000 of Triumph Group, Inc., and  

12) Registration Statement (Form S-3 No. 333-251429) pertaining to the offer and sale of an indeterminate aggregate amount of securities of Triumph Group, Inc.

of our reports dated May 20, 2021, with respect to the consolidated financial statements and schedule of Triumph Group, Inc. and the effectiveness of internal control over financial reporting of Triumph Group, Inc. included in this Annual Report (Form 10-K) of Triumph Group, Inc. for the year ended March 31, 2021.

/s/ Ernst & Young, LLP

Philadelphia, Pennsylvania

May 20, 2021

EX-31.1

Exhibit 31.1

CERTIFICATION PURSUANT TO RULE 13a-14(a) OR 15d-14(a) OF

THE SECURITIES AND EXCHANGE ACT OF 1934

I, Daniel J. Crowley, certify that:

1. I have reviewed this Annual Report on Form 10-K of Triumph Group, Inc. (this "Report");

2. Based on my knowledge, this Report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this Report;

3. Based on my knowledge, the financial statements, and other financial information included in this Report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this Report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this Report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this Report our conclusions about the effectiveness of the disclosure controls and procedures as of the end of the period covered by this Report based on such evaluation; and

d) disclosed in this Report any change in the registrant's internal control over financial reporting that occurred during the registrant's fourth fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Dated: May 20, 2021
	/s/ Daniel J. Crowley
	Daniel J. Crowley
	Chairman, President and Chief Executive Officer (Principal Executive Officer)

EX-31.2

Exhibit 31.2

CERTIFICATION PURSUANT TO RULE 13a-14(a) OR 15d-14(a) OF

THE SECURITIES AND EXCHANGE ACT OF 1934

I, James F. McCabe, Jr., certify that:

1. I have reviewed this Annual Report on Form 10-K of Triumph Group, Inc. (this "Report");

2. Based on my knowledge, this Report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this Report;

3. Based on my knowledge, the financial statements, and other financial information included in this Report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this Report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this Report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this Report our conclusions about the effectiveness of the disclosure controls and procedures as of the end of the period covered by this Report based on such evaluation; and

d) disclosed in this Report any change in the registrant's internal control over financial reporting that occurred during the registrant's fourth fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Dated: May 20, 2021
	/s/ James F. McCabe, Jr.
	James F. McCabe, Jr.
	Senior Vice President, Chief Financial Officer (Principal Financial Officer)

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report on Form 10-K of Triumph Group, Inc. (the "Company") for the year ended March 31, 2021, as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Daniel J. Crowley, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, to the best of my knowledge, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

By:	/s/ Daniel J. Crowley
	Daniel J. Crowley Chairman, President and Chief Executive Officer (Principal Executive Officer)
	May 20, 2021

________________________________________________________________________________________________________________________

A signed original of this written statement required by Section 906 has been provided to Triumph Group, Inc. and will be retained by Triumph Group, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report on Form 10-K of Triumph Group, Inc. (the "Company") for the year ended March 31, 2021, as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, James F. McCabe, Jr., Senior Vice President, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, to the best of my knowledge, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

By:	/s/ James F. McCabe, Jr.
	James F. McCabe, Jr. Senior Vice President, Chief Financial Officer (Principal Financial Officer)
	May 20, 2021

________________________________________________________________________________________________________________________

A signed original of this written statement required by Section 906 has been provided to Triumph Group, Inc. and will be retained by Triumph Group, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Document and Entity Information - USD ($)
$ in Millions

12 Months Ended

Mar. 31, 2021

May 17, 2021

Sep. 30, 2020

Document Information [Line Items]

Document Period End Date

Mar. 31, 2021

Entity Registrant Name

Triumph Group, Inc.

Entity Central Index Key

0001021162

Document Type

10-K

Amendment Flag

false

Current Fiscal Year End Date

--03-31

Entity Well-known Seasoned Issuer

Yes

Entity Voluntary Filers

No

Entity Filer Category

Accelerated Filer

Entity Public Float

$ 336

Entity Common Stock, Shares Outstanding

64,220,262

Document Fiscal Year Focus

2021

Document Fiscal Period Focus

FY

Entity Current Reporting Status

Yes

Entity Interactive Data Current

Yes

Entity Emerging Growth Company

false

Entity Small Business

false

Entity Shell Company

false

ICFR Auditor Attestation Flag

true

Entity Incorporation, State or Country Code

DE

Entity Tax Identification Number

51-0347963

Entity File Number

1-12235

Entity Address, Address Line One

899 Cassatt Road

Entity Address, Address Line Two

Suite 210

Entity Address, City or Town

Berwyn

Entity Address, State or Province

PA

Entity Address, Postal Zip Code

19312

City Area Code

610

Local Phone Number

251-1000

Document Annual Report

true

Document Transition Report

false

Documents Incorporated by Reference

Portions of the following document are incorporated herein by reference:

The Proxy Statement of Triumph Group, Inc. to be filed in connection with our 2021 Annual Meeting of Stockholders is incorporated in part in Part III hereof, as specified herein.

Common Stock [Member]

Document Information [Line Items]

Title of 12(b) Security

Common Stock, par value $.001 per share

Trading Symbol

TGI

Security Exchange Name

NYSE

Purchase Rights [Member]

Document Information [Line Items]

Title of 12(b) Security

Purchase rights

No Trading Symbol Flag

true

Security Exchange Name

NYSE

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2021	Mar. 31, 2020
Current assets:
Cash and cash equivalents	$ 589,882	$ 485,463
Trade and other receivables, less allowance for credit losses of $8,095 and $4,293	194,066	359,487
Contract assets	134,638	244,417
Inventory, net	400,366	452,976
Prepaid expenses and other current assets	19,206	19,289
Assets held for sale	216,276
Total current assets	1,554,434	1,561,632
Property and equipment, net	211,369	418,141
Goodwill	521,638	513,527
Intangible assets, net	102,453	381,968
Other, net	61,041	105,065
Total assets	2,450,935	2,980,333
Current liabilities:
Current portion of long-term debt	5,247	7,336
Accounts payable	179,473	457,694
Contract liabilities	204,379	295,320
Accrued expenses	271,160	227,403
Liabilities related to assets held for sale	58,108
Total current liabilities	718,367	987,753
Long-term debt, less current portion	1,952,296	1,800,171
Accrued pension and other postretirement benefits	384,256	660,065
Deferred income taxes	7,491	7,439
Other noncurrent liabilities	207,378	306,169
Stockholders' deficit:
Common stock, $.001 par value, 100,000,000 shares authorized, 64,488,674 and 52,460,920 shares issued; 64,185,001 and 51,858,089 shares outstanding	64	52
Capital in excess of par value	978,272	804,830
Treasury stock, at cost, 303,673 and 602,831 shares	(12,606)	(36,217)
Accumulated other comprehensive loss	(530,192)	(746,448)
Accumulated deficit	(1,254,391)	(803,481)
Total stockholders' deficit	(818,853)	(781,264)
Total liabilities and stockholders' deficit	$ 2,450,935	$ 2,980,333

XML

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2021	Mar. 31, 2020
Statement Of Financial Position [Abstract]
Allowance for credit losses	$ 8,095	$ 4,293
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	64,488,674	52,460,920
Common stock, shares outstanding	64,185,001	51,858,089
Treasury stock, shares	303,673	602,831

XML

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Net sales	$ 1,869,719	$ 2,900,117	$ 3,364,930
Operating costs and expenses:
Cost of sales (exclusive of depreciation shown separately below)	1,476,266	2,307,393	2,924,920
Selling, general and administrative	215,962	257,529	298,386
Depreciation and amortization	93,334	138,168	149,904
Legal judgment gain, net of expenses		(9,257)
Impairment of long-lived assets	252,382
Impairment of goodwill		66,121
Restructuring	53,224	25,340	31,098
Loss on sale of assets and businesses	104,702	56,916	235,301
Operating Expenses	2,195,870	2,842,210	3,639,609
Operating (loss) income	(326,151)	57,907	(274,679)
Non-service defined benefit income	(49,519)	(40,587)	(56,726)
Interest expense and other, net	171,397	122,129	114,619
Loss from continuing operations before income taxes	(448,029)	(23,635)	(332,572)
Income tax expense (benefit)	2,881	5,798	(5,426)
Net loss	$ (450,910)	$ (29,433)	$ (327,146)
Loss per share—basic:
Net loss	$ (8.55)	$ (0.58)	$ (6.58)
Weighted average common shares outstanding—basic	52,739	50,494	49,698
Loss per share—diluted:
Net loss	$ (8.55)	$ (0.58)	$ (6.58)
Weighted average common shares outstanding—diluted	52,739	50,494	49,698

XML

Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (450,910)	$ (29,433)	$ (327,146)
Other comprehensive income (loss):
Foreign currency translation adjustment	19,884	(13,439)	10,077
Amounts arising during the period - net of tax (expense) benefit
Prior service credit (cost), net of taxes of $0, $0, and $0, respectively		94,182	(1,139)
Actuarial gain (loss), net of taxes of $0, $0, and $0, respectively	168,701	(303,017)	(120,161)
Reclassification to net loss - net of expense (benefit)
Amortization of net loss, net of taxes of $0, $0, and $(656), respectively	26,483	49,290	6,314
Recognized prior service credits, net of taxes of $0, $0, and $0, respectively	(4,130)	(54,280)	(8,274)
Total defined benefit pension plans and other postretirement benefits, net of taxes	191,054	(213,825)	(123,260)
Cash flow hedges:
Unrealized gain (loss) arising during the period, net of tax benefit of $0, $0, and $(228), respectively	5,891	(1,611)	30
Reclassification of loss included in net earnings, net of tax expense of $0, $0, and $228, respectively	(573)	(1,562)	(1,282)
Net unrealized gain (loss) on cash flow hedges, net of tax	5,318	(3,173)	(1,252)
Total other comprehensive income (loss)	216,256	(230,437)	(114,435)
Total comprehensive loss	$ (234,654)	$ (259,870)	$ (441,581)

XML

Consolidated Statements of Comprehensive Loss (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Statement Of Income And Comprehensive Income [Abstract]
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Credit (Cost), Tax	$ 0	$ 0	$ 0
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During the Period, Tax	0	0	0
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net (Gain) Loss, Tax	0	0	(656)
Other Comprehensive Income (Loss), Amortization Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Prior Service (Cost) Credit, Tax	0	0	0
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax	0	0	(228)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax	$ 0	$ 0	$ 228

XML

Consolidated Statements of Stockholders' Equity (Deficit) - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Common Stock [Member]	Capital in Excess of Par Value [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Loss [Member]	Retained Earnings (Accumulated Deficit) [Member]	Retained Earnings (Accumulated Deficit) [Member] Cumulative Effect, Period of Adoption, Adjustment
Balance at Mar. 31, 2018	$ 450,534	$ (585,015)	$ 51	$ 851,280	$ (179,082)	$ (401,576)	$ 179,861	$ (585,015)
Balance (in shares) at Mar. 31, 2018			49,669,848
Net loss	$ (327,146)						(327,146)
Accounting Standards Update Extensible List	ASC 606 [Member]
Foreign currency translation adjustment	$ 10,077					10,077
Pension liability adjustment, net of income taxes	(123,260)					(123,260)
Change in fair value of foreign currency hedges, net of income taxes	(1,252)					(1,252)
Cash dividends ($0.16 per share)	(7,971)						(7,971)
Share-based compensation	10,259			(1,448)	11,707
Share-based compensation, shares			186,572
Repurchase of restricted shares for minimum tax obligation	(860)				(860)
Repurchase of restricted shares for minimum tax obligation, shares			(42,146)
Employee stock purchase plan	1,321			(3,354)	4,675
Employee stock purchase plan, shares			72,994
Other			$ 1	21,067	4,406		(25,474)
Balance at Mar. 31, 2019	(573,313)	$ (225)	$ 52	867,545	(159,154)	(516,011)	(765,745)	$ (225)
Balance (in shares) at Mar. 31, 2019			49,887,268
Net loss	$ (29,433)						(29,433)
Accounting Standards Update Extensible List	us-gaap:AccountingStandardsUpdate201602Member
Foreign currency translation adjustment	$ (13,439)					(13,439)
Pension liability adjustment, net of income taxes	(213,825)					(213,825)
Change in fair value of foreign currency hedges, net of income taxes	(3,173)					(3,173)
Cash dividends ($0.16 per share)	(8,078)						(8,078)
Share-based compensation	10,714			(5,508)	16,222
Share-based compensation, shares			264,658
Repurchase of restricted shares for minimum tax obligation	(1,442)				(1,442)
Repurchase of restricted shares for minimum tax obligation, shares			(69,601)
Employee stock purchase plan	950			(1,811)	2,761
Employee stock purchase plan, shares			45,061
Contribution of treasury shares to pension plan, shares			1,730,703
Contribution of treasury shares to pension plan	50,000			(55,396)	105,396
Balance at Mar. 31, 2020	(781,264)		$ 52	804,830	(36,217)	(746,448)	(803,481)
Balance (in shares) at Mar. 31, 2020			51,858,089
Net loss	(450,910)						(450,910)
Foreign currency translation adjustment	19,884					19,884
Pension liability adjustment, net of income taxes	191,054					191,054
Change in fair value of foreign currency hedges, net of income taxes	5,318					5,318
Share-based compensation	12,445			(6,250)	18,695
Share-based compensation, shares			288,350
Repurchase of restricted shares for minimum tax obligation	(1,285)				(1,285)
Repurchase of restricted shares for minimum tax obligation, shares			(99,082)
Employee stock purchase plan	857			(5,344)	6,201
Employee stock purchase plan, shares			109,890
Contribution of common stock to pension plan, net of issuance costs	39,665		$ 3	39,662
Contribution of common stock to pension plan, net of issuance costs, shares			2,849,002
Issuance of common stock - at the market offering, net of issuance costs	145,383		$ 9	145,374
Issuance of common stock at the market offering, net of issuance costs, shares			9,178,752
Balance at Mar. 31, 2021	$ (818,853)		$ 64	$ 978,272	$ (12,606)	$ (530,192)	$ (1,254,391)
Balance (in shares) at Mar. 31, 2021			64,185,001

XML

Consolidated Statements of Stockholders' Equity (Deficit) (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Statement Of Stockholders Equity Parenthetical [Abstract]
Other comprehensive (income) loss, defined benefit plan, after reclassification adjustment, tax	$ 0	$ (656)	$ (288)
Other comprehensive income (loss), tax	$ 0	$ 228	$ 11
Dividends declared and paid per common share (in dollars per share)		$ 0.16	$ 0.16

XML

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Operating Activities
Net loss	$ (450,910)	$ (29,433)	$ (327,146)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation and amortization	93,334	138,168	149,904
Impairment of long-lived assets and goodwill	252,382	66,121
Amortization of acquired contract liability	(38,564)	(75,286)	(67,314)
Loss on sale of assets and businesses	104,702	56,916	235,301
Curtailments and special termination benefits gain, net		14,293	4,032
Other amortization included in interest expense	23,759	11,157	8,770
Provision for (recovery of) credit losses	4,853	1,554	(495)
(Benefit) provision for deferred income taxes	(176)	2,823	(7,939)
Share-based compensation	12,701	11,062	10,259
Changes in other assets and liabilities, excluding the effects of acquisitions and divestitures:
Trade and other receivables	126,294	5,001	(89,728)
Contract assets	46,841	50,440	65,191
Inventories	35,412	(48,802)	(15,930)
Prepaid expenses and other current assets	(310)	16,376	(3,144)
Accounts payable, accrued expenses, and contract liabilities	(330,992)	(61,338)	(71,767)
Accrued pension and other postretirement benefits	(51,692)	(66,519)	(74,532)
Other, net	(753)	4,133	10,118
Net cash (used in) provided by operating activities	(173,119)	96,666	(174,420)
Investing Activities
Capital expenditures	(25,178)	(39,834)	(47,099)
Proceeds from sale of assets and businesses	15,888	47,229	247,647
Net cash (used in) provided by investing activities	(9,290)	7,395	200,548
Financing Activities
Net (decrease) increase in revolving credit facility	(400,000)	185,000	102,113
Proceeds from issuance of long-term debt	713,900	585,580	54,600
Retirement of debt and finance lease obligations	(160,035)	(449,650)	(113,425)
Payment of deferred financing costs	(20,716)	(17,718)	(1,982)
Sales of common stock, net of issuance costs	145,383
Dividends paid		(8,078)	(7,971)
Repurchase of restricted shares for minimum tax obligations	(1,285)	(1,442)	(860)
Net cash provided by financing activities	277,247	293,692	32,475
Effect of exchange rate changes on cash	9,581	(5,097)	(1,615)
Net change in cash and cash equivalents	104,419	392,656	56,988
Cash and cash equivalents at beginning of period	485,463	92,807	35,819
Cash and cash equivalents at end of period	$ 589,882	$ 485,463	$ 92,807

XML

Background and Basis of Presentation

12 Months Ended

Mar. 31, 2021

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Background and Basis of Presentation

1.    BACKGROUND AND BASIS OF PRESENTATION

Triumph Group, Inc. ("Triumph") is a Delaware corporation which, through its operating subsidiaries, designs, engineers, manufactures and sells products for the global aerospace OEMs of aircraft and aircraft components and repairs and overhauls aircraft components and accessories for commercial airline, air cargo carrier and military customers on a worldwide basis. Triumph and its subsidiaries (collectively, the "Company") are organized based on the products and services that they provide. The Company has two reportable segments: Systems & Support and Aerospace Structures.  

Systems & Support consists of the Company’s operations that provide integrated solutions, including design, development, and support of proprietary components, subsystems and systems, as well as production of complex assemblies using external designs.  Capabilities include hydraulic, mechanical and electromechanical actuation, power and control; a complete suite of aerospace gearbox solutions, including engine accessory gearboxes and helicopter transmissions; active and passive heat exchange technology; fuel pumps, fuel metering units and Full Authority Digital Electronic Control fuel systems; hydromechanical and electromechanical primary and secondary flight controls. Systems & Support also provides full life cycle solutions for commercial, regional and military aircraft. The Company’s extensive product and service offerings include full post-delivery value chain services that simplify the MRO supply chain. Through its ground support equipment maintenance, component MRO and post- production supply chain activities, Systems & Support is positioned to provide integrated planeside repair solutions globally. Capabilities include metallic and composite aircraft structures; nacelles; thrust reversers; interiors; auxiliary power units; and a wide variety of pneumatic, hydraulic, fuel and mechanical accessories.  Repair services generally involve the replacement and/or remanufacturing of parts, which is similar to the original manufacture of the part. The processes that the Company performs related to repair and overhaul services are essentially the repair of wear parts or replacement of parts that are beyond economic repair. The repair service generally involves remanufacturing a complete part or a component of a part.

Aerospace Structures consists of the Company’s operations that supply commercial, business, regional and military manufacturers with large metallic and composite structures and aircraft interior systems, including air ducting and thermal acoustic insulations systems. Products include wings, wing boxes, fuselage panels, horizontal and vertical tails, subassemblies such as floor grids, and aircraft interior systems, including air ducting and thermal acoustic insulations systems. Aerospace Structures also has the capability to engineer detailed structural designs in metal and composites. Capabilities include advanced composite and interior structures, joining processes such as welding, autoclave bonding, and conventional mechanical fasteners.

The accompanying consolidated financial statements include the accounts of Triumph and its wholly-owned subsidiaries. Intercompany accounts and transactions have been eliminated from the consolidated financial statements.

The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes.  Actual results could differ from those estimates.  

Standards Recently Implemented

Adoption of ASU 2016-13

In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.  This ASU modifies the measurement of expected credit losses of certain financial instruments. ASU 2016-13 is effective for annual periods beginning after December 15, 2019, and interim periods within those annual periods.  The amendments in this ASU should be applied on a modified retrospective basis to all periods presented. The Company adopted ASU 2016-13 effective April 1, 2020, and the impact on its consolidated financial statements was not significant.  

In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework – Changes to the Disclosure Requirements for Fair Value Measurement.  This ASU modifies the disclosure requirements for fair value measurements by removing, modifying or adding certain disclosures.  ASU 2018-13 is effective for annual periods beginning after December 15, 2019, and interim periods within those annual periods, with early adoption permitted.  The amendments on changes in unrealized gains and losses, the range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements, and the narrative description of measurement uncertainty should be applied prospectively for only the most recent interim or annual period presented in the initial fiscal year of adoption.  All other amendments should be applied retrospectively to all periods presented upon their effective date.  The Company adopted ASU 2018-13 effective April 1, 2020, and the adoption did not have a significant impact on its consolidated financial statement disclosures.

In August 2018, the FASB issued ASU 2018-14, Compensation—Retirement Benefits—Defined Benefit Plans—General (Subtopic 715-20): Disclosure Framework—Changes to the Disclosure Requirements for Defined Benefit Plans, which modifies the annual disclosure requirements for defined benefit pension plans and other postretirement plans.  ASU 2018-14 is effective for annual

periods ending after December 15, 2020, with early adoption permitted.  The amendments in this ASU should be applied on a retrospective basis to all periods presented.  The Company adopted ASU 2018-14 effective April 1, 2020, and the adoption did not have a significant impact on its consolidated financial statement disclosures.

Standards Issued Not Yet Implemented

In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes.  This ASU modifies ASC 740, Income Taxes to simplify the accounting for income taxes. ASU 2019-12 is effective for fiscal years beginning after December 15, 2020, with early adoption permitted. The Company will adopt and implement this ASU for its fiscal year beginning April 1, 2021. The adoption is not expected to have a material impact on the Company’s financial position or results of operations.

Impact of Change in Accounting Principle

Effective April 1, 2020, the Company changed its method of accounting for the determination of the market-related value of assets (“MRVA”) for a class of assets (fixed income securities) within the qualified U.S. defined benefit plan (the “Plan”) which is used in determining the expected return on asset component of net periodic benefit income.  This class of assets is composed solely of the fixed income securities asset class held in the portfolio for the Plan, which provides a natural hedge (liability-hedging assets) against the changes in the Plan’s liability due to changes in market interest rates. Refer to Note 15 for the Company’s fair value disclosure by asset classification.  The Company’s previous method of accounting was to calculate the MRVA for all the Plan’s assets recognizing investment gains and losses into the MRVA over a five-year period.  The Company has changed its method of accounting and elected to use the fair value of its fixed income assets, which represent approximately 44% of the Plan’s assets as of the effective date of the change in accounting principle, to determine the MRVA. This change in accounting principle is preferable as it results in an expected return on asset component of net periodic benefit income that more accurately reflects the changes in the fair values of the fixed income securities.  No change is being made to the accounting principle for the other classes of pension assets, which represent the remaining 56% of the pension asset portfolio for the Plan.  The gains and losses for these other plan assets will continue to be amortized into the MRVA over a five-year period.

The change in accounting principle requires retrospective application and prospective disclosure.  The Company applied the change effective April 1, 2020, and recorded a cumulative adjustment to equity as of the earliest period presented.  The tables below represent the impact of this change on the consolidated statements of operations (including earnings per share) and the consolidated statements of comprehensive loss for the periods presented below.  The change in accounting principle had no impact on the consolidated statements of cash flows for these periods.

The tables below represent the impact of the change in accounting principle on the consolidated statement of operations and the consolidated statements of comprehensive loss for the year ended March 31, 2021.

	Year Ended March 31, 2021
	As Reported (With Change)			Impact of Change			Without Change
Non-service defined benefit income	$	(49,519	)	$	(6,112	)	$	(43,407	)
Loss before income taxes		(448,029	)		6,112			(454,141	)
Income tax expense		2,881			-			2,881
Net loss	$	(450,910	)	$	6,112		$	(457,022	)
Net Loss per share - basic & diluted
Basic	$	(8.55	)	$	0.12		$	(8.67	)
Diluted	$	(8.55	)	$	0.12		$	(8.67	)
Defined benefit pension plans and other postretirement benefits:
Total defined benefit pension plans and other postretirement    benefits, net of taxes	$	191,054		$	(6,112	)		197,166
Total other comprehensive income	$	216,256		$	(6,112	)		222,368
Comprehensive loss	$	(234,654	)	$	-			(234,654	)

The table below represents the impact of the change in accounting principle on the consolidated balance sheet as of March 31, 2021.

Stockholders' deficit:	As Reported (With Change), March 31, 2021			Impact of Change			Without Change, March 31, 2021
Accumulated other comprehensive loss	$	(530,192	)	$	(33,132	)		(497,060	)
Accumulated deficit	$	(1,254,391	)	$	33,132			(1,287,523	)
Total stockholders' deficit	$	(818,853	)	$	-			(818,853	)

XML

Summary of Significant Accounting Policies

12 Months Ended

Mar. 31, 2021

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

2.    SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Cash and Cash Equivalents

Cash equivalents consist of highly liquid investments with a maturity of three months or less at the time of purchase. Fair value of cash equivalents approximates carrying value.

Trade and Other Receivables, net

Trade and other receivables are recorded net of an allowance for expected credit losses. Trade and other receivables include amounts billed and currently due from customers and amounts retained by the customer pending contract completion. The Company performs ongoing credit evaluations of its customers and generally does not require collateral. The Company pools receivables that share underlying risk characteristics and records the allowance for expected credit losses based on a combination of prior experience, current economic conditions and management’s expectations of future economic conditions, and specific collectibility matters when they arise. The Company writes off balances against the allowance for expected credit losses when collectibility is deemed remote. The Company's trade and other receivables are exposed to credit risk; however, the risk is limited due to the diversity of the customer base. For the years ended March 31, 2021 and 2020, credit loss expense and write-offs were immaterial.  

Trade and other receivables, net composed of the following:

	March 31,
	2021			2020
Total trade receivables	$	192,888		$	314,007
Other receivables		9,273			49,773
Total trade and other receivables		202,161			363,780
Less: Allowance for credit losses		(8,095	)		(4,293	)
Total trade and other receivables, net	$	194,066		$	359,487

Goodwill and Intangible Assets

The Company accounts for goodwill and intangible assets in accordance with ASC 350, Intangibles—Goodwill and Other. Under ASC 350, goodwill and intangible assets with indefinite lives are not amortized; rather, they are tested for impairment on at least an annual basis. Intangible assets with finite lives are amortized over their useful lives.

The Company assesses whether goodwill impairment exists using both the qualitative and quantitative assessments. The qualitative assessment involves determining whether events or circumstances exist that indicate it is more likely than not that the fair value of a reporting unit is less than its carrying amount, including goodwill. If based on this qualitative assessment the Company determines it is not more likely than not that the fair value of a reporting unit is less than its carrying amount or if the Company elects not to perform a qualitative assessment, a quantitative assessment is performed as required by ASC 350 to determine whether a goodwill impairment exists at the reporting unit.

The quantitative test is used to compare the carrying amount of the reporting unit's assets to the fair value of the reporting unit. If the fair value exceeds the carrying value, no further evaluation is required, and no impairment loss is recognized. If the carrying amount exceeds the fair value, then an impairment loss occurs. The impairment is measured by using the amount by which the carrying value exceeds the fair value not to exceed the amount of recorded goodwill. The determination of the fair value of its reporting units is based, among other things, on estimates of future operating performance of the reporting unit being valued. The Company is required to complete an impairment test for goodwill and record any resulting impairment losses at least annually. Changes in market conditions, among other factors, may have an impact on these estimates and require interim impairment assessments.

When performing the quantitative impairment test, the Company's methodology includes the use of an income approach which discounts future net cash flows to their present value at a rate that reflects the Company's cost of capital, otherwise known as the discounted cash flow method ("DCF"). These estimated fair values are based on estimates of future cash flows of the businesses.

Factors affecting these future cash flows include the continued market acceptance of the products and services offered by the businesses, the development of new products and services by the businesses and the underlying cost of development, the future cost structure of the businesses and future technological changes. The Company also incorporates market multiples for comparable companies in determining the fair value of its reporting units. Any such impairment would be recognized in full in the reporting period in which it has been identified.  The fair value estimates resulting from the application of these methodologies are based on inputs classified within Level 3 of the fair value hierarchy, as described below.  

During the fourth quarter of the fiscal year ended March 31, 2021, the Company performed its annual goodwill impairment assessment for each of its reporting units with no impairment identified.

In fiscal 2020, at March 31, 2020, the Company identified indicators of impairment due to the decline in the Company’s share price as well as potential negative impacts due to the uncertainty of the impact of the COVID-19 pandemic.  As a result of these indicators, the Company performed an interim assessment of goodwill, which included using a combination of both market and income approaches to estimate the fair value of each reporting unit. The Company concluded that its Product Support reporting unit had a fair value that was lower than its carrying value by an amount that exceeded the remaining goodwill for the reporting unit. Therefore, the Company recorded a noncash impairment charge during the fiscal quarter ended March 31, 2020, of $66,121, which is presented on the consolidated statements of operations as “Impairment of goodwill” for the fiscal year ended March 31, 2020. The decline in fair value was the result of expected declines in revenues from MRO services and the uncertainty in the rate and timing of recovery and therefore the timing of associated earnings and cash flows.

Finite-lived intangible assets are amortized over their useful lives ranging from 7 to 30 years. The Company continually evaluates whether events or circumstances have occurred that would indicate that the remaining estimated useful lives of long-lived assets, including intangible assets, may warrant revision or that the remaining balance may not be recoverable. Long-lived assets are evaluated for indicators of impairment. When factors indicate that long-lived assets, including intangible assets, should be evaluated for possible impairment, an estimate of the related undiscounted cash flows over the remaining life of the long-lived assets, including intangible assets, is used to measure recoverability based on the primary asset of the asset group. Some of the more important factors management considers include the Company's financial performance relative to expected and historical performance, significant changes in the way the Company manages its operations, negative events that have occurred, and negative industry and economic trends. If the estimated undiscounted cash flows are less than the carrying amount, measurement of the impairment will be based on the difference between the carrying value and fair value of the asset group, generally determined based on the present value of expected future cash flows associated with the use of the asset.

As disclosed in Note 3, in May 2020, the Company’s Board of Directors committed to a plan (i) to sell its composites manufacturing operations located in Milledgeville, Georgia, and Rayong, Thailand, and (ii) to transfer the assets and certain liabilities associated with its Gulfstream G650 wing supply chain activities (as disclosed in Note 3, this transaction closed in August 2020). These planned divestitures represent the divestiture of certain assets and liabilities of an operating business within the Aerospace Structures segment that the Company has identified as an asset group pursuant to the provisions of ASC 360, Property, Plant, and Equipment. As a result, as of May 31, 2020, the Company concluded that the planned divestitures represented a significant change in the manner in which the related asset group was expected to be used, and that the asset group therefore needed to be tested for recoverability. The asset group primarily consists of working capital, fixed assets and definite-lived intangible assets. The Company first determined that the relevant long-lived asset group was not recoverable by comparing the undiscounted cash flows expected to be generated by the long-lived asset group to the carrying value of the asset group.  As a result, the Company estimated the fair value of the long-lived asset group and concluded that the asset group was impaired. The Company used a multi-period excess earnings approach to estimate the fair value of the long-lived asset group for purposes of testing the asset group for impairment.  This method estimates fair value based on the expected future excess earnings stream attributable to the asset group.  This method requires the use of several key assumptions, including revenue projections that consider historical and estimated future results, general economic and market conditions, as well as the impact of planned business and operational strategies. A discount rate of 15.0% was applied to the estimated future excess earnings and cash flows in order to estimate the fair value of the asset group as of the measurement date. The Company has determined that the lowest level of the inputs that are significant to the fair value measurement are unobservable inputs that fall within Level 3 of the fair value hierarchy.

In accordance with ASC 360, the Company allocated the resulting impairment to the specific long-lived assets within the asset group on a pro rata basis, except that the loss allocated to an individual long-lived asset of the group did not reduce the carrying amount of that asset below its estimated fair value.  As a result, the Company recognized a total noncash impairment charge of $252,382 in the first quarter, primarily allocated to definite-lived intangible assets, which is presented as “Impairment of long-lived assets” on the accompanying consolidated statements of operations.  In January 2021, the Company’s Board of Directors committed to a plan to sell its manufacturing operations located in Red Oak, Texas.  As a result of this decision and the resulting classification of this disposal group as held for sale, the Company fully impaired the remaining customer relationship intangible asset within the Aerospace Structures segment and recognized a noncash impairment charge of $6,696, which has been included in the impairment on the assets held for sale as disclosed in Note 3 and is presented within “Loss on sale of assets and businesses” on the accompanying consolidated statement of operations.

See below for the Company's accounting policy regarding fair value measurements and the definition of fair value levels.

Revenue Recognition and Contract Balances

The Company adopted ASC 606 on April 1, 2018.  The Company's revenue is principally from contracts with customers to provide design, development, manufacturing, and support services associated with specific customer programs. The Company regularly enters into long-term master supply agreements that establish general terms and conditions and may define specific program requirements. Many agreements include clauses that provide sole supplier status to the Company for the duration of the program’s life. Purchase orders (or authorizations to proceed) are issued pursuant to the master supply agreements. Additionally, a majority of the Company’s agreements with customers include options for future purchases. Such options primarily reduce the administrative effort of issuing subsequent purchase orders and do not represent material rights granted to customers. The Company generally enters into agreements directly with its customers and is the principal in all current contracts.

The identification of a contract with a customer for purposes of accounting and financial reporting requires an evaluation of the terms and conditions of agreements to determine whether presently enforceable rights and obligations exist. Management considers a number of factors when making this evaluation that include, but are not limited to, the nature and substance of the business exchange, the specific contractual terms and conditions, the promised products and services, the termination provisions in the contract, as well as the nature and execution of the customer’s ordering process and how the Company is authorized to perform work. Generally, presently enforceable rights and obligations are not created until a purchase order is issued by a customer for a specified number of units of product or services. Therefore, the issuance of a purchase order is generally the point at which a contract is identified for accounting and financial reporting purposes.

Management identifies the promises to the customer. Promises are generally explicitly stated in each contract, but management also evaluates whether any promises are implied based on the terms of the agreement, past business practice, or other facts and circumstances. Each promise is evaluated to determine if it is a performance obligation. A performance obligation is a promise in a contract to transfer a distinct good or service. The Company considers a number of factors when determining whether a promise is a distinct performance obligation, including whether the customer can benefit from the good or service on its own or together with other resources that are readily available to the customer, whether the Company provides a significant service of integrating goods or services to deliver a combined output to the customer, or whether the goods or services are highly interdependent. The Company’s performance obligations consist of a wide range of engineering design services and manufactured components, as well as spare parts and repairs for OEMs.

The transaction price for a contract reflects the consideration the Company expects to receive for fully satisfying the performance obligations in the contract. Typically, the transaction price consists solely of fixed consideration but may include variable consideration for contractual provisions such as unpriced contract modifications, cost-sharing provisions, and other receipts or payments to customers. The Company identifies and estimates variable consideration, typically at the most likely amount the Company expects to receive from its customers. Variable consideration is only included in the transaction price to the extent it is probable that a significant reversal of cumulative revenue recognized for the contract will not occur, or when the uncertainty associated with the variable consideration is resolved. The Company's contracts with customers generally require payment under normal commercial terms after delivery with payment typically required within 30 to 120 days of delivery. However, a subset of the Company’s current contracts includes significant financing components because the timing of the transfer of the underlying products and services under contract are at the customers’ discretion. For these contracts, the Company adjusts the transaction price to reflect the effects of the time value of money.

The Company generally is not subject to collecting sales tax and has made an accounting policy election to exclude from the transaction price any sales and other similar taxes collected from customers. As a result, any such collections are accounted for on a net basis.

The total transaction price is allocated to each of the identified performance obligations using the relative stand-alone selling price. The objective of the allocation is to reflect the consideration that the Company expects to receive in exchange for the products or services associated with each performance obligation. Stand-alone selling price is the price at which the Company would sell a promised good or service separately to a customer. Stand-alone selling prices are established at contract inception, and subsequent changes in transaction price are allocated on the same basis as at contract inception. When stand-alone selling prices for the Company’s products and services are not observable, the Company uses either the “Expected Cost Plus a Margin” or "Adjusted Market Assessment" approaches to estimate stand-alone selling price. Expected costs are typically derived from the available periodic forecast information.

Revenue is recognized when or as control of promised products or services transfers to a customer and is recognized at the amount allocated to each performance obligation associated with the transferred products or services. Service sales, principally representing repair, maintenance, and engineering activities are recognized over the contractual period or as services are rendered. Sales under long-term contracts with performance obligations satisfied over time are recognized using either an input or output method. The Company recognizes revenue over time as it performs on these contracts because of the continuous transfer of control to the customer as represented by contractual terms that entitle the Company to the reimbursement of costs plus a reasonable profit for work performed to manufacture products for which the Company has no alternate use or for work performed on a customer-owned asset.

With control transferring over time, revenue is recognized based on the extent of progress toward completion of the performance obligation. The Company generally uses the cost-to-cost input method of progress for its contracts because it best depicts the transfer of control to the customer that occurs as work progresses. Under the cost-to-cost method, the extent of progress toward completion is measured based on the proportion of costs incurred to date to the total estimated costs at completion of the performance obligation. The Company reviews its cost estimates on contracts on a periodic basis, or when circumstances change and warrant a modification to a previous estimate. Cost estimates are largely based on negotiated or estimated purchase contract terms, historical performance trends and other economic projections. Significant factors that influence these estimates include inflationary trends, technical and schedule risk, internal and subcontractor performance trends, business volume assumptions, asset utilization, and anticipated labor agreements.

Revenue and cost estimates are regularly monitored and revised based on changes in circumstances. Impacts from changes in estimates of net sales and cost of sales are recognized on a cumulative catch-up basis, which recognizes in the current period the cumulative effect of the changes on current and prior periods based on a performance obligation’s percentage of completion. Forward loss reserves for anticipated losses on long-term contracts are recorded in full when such losses become evident, to the extent required and are included in contract liabilities on the accompanying consolidated balance sheets. The Company believes that the accounting estimates and assumptions made by management are appropriate given the increased uncertainties surrounding the severity and duration of the impacts of the COVID-19 pandemic, however actual results could differ materially from those estimates.

For the fiscal year ended March 31, 2021, cumulative catch-up adjustments resulting from changes in contract values and estimated costs that arose during the fiscal year increased revenue and decreased operating loss, net loss, and loss per share by approximately $4,796, $12,332, $12,332, and $0.23, respectively. The cumulative catch-up adjustments to operating income for the fiscal year ended March 31, 2021, included gross favorable adjustments of approximately $55,180 and gross unfavorable adjustments of approximately $42,848.

For the fiscal year ended March 31, 2020, cumulative catch-up adjustments resulting from changes in estimates increased net sales,  operating loss, net loss and loss per share by approximately $12,011, ($22,844), ($22,844), and ($0.45), respectively. The cumulative catch-up adjustments to operating income for the fiscal year ended March 31, 2020, included gross favorable adjustments of approximately $43,405 and gross unfavorable adjustments of approximately $66,249.

For the fiscal year ended March 31, 2019, cumulative catch-up adjustments resulting from changes in estimates decreased operating loss, net loss and decreased loss per share by approximately ($68,694), ($68,694), and ($1.38), respectively. The cumulative catch-up adjustments to operating income for the fiscal year ended March 31, 2019, included gross favorable adjustments of approximately $46,074 and gross unfavorable adjustments of approximately $114,768. These cumulative catch-up adjustments do not include a noncash charge the Company recorded as a result of the adoption of ASU 2017-07 of $87,241 due to a change in estimate from a change in accounting principles, which is presented on the accompanying consolidated statements of operations within cost of sales.

Revenues for performance obligations that are not recognized over time are recognized at the point in time when control transfers to the customer. For performance obligations that are satisfied at a point in time, the Company evaluates the point in time when the customer can direct the use of and obtain the benefits from the products and services. Generally, the shipping terms determine the point in time when control transfers to customers. Shipping and handling activities are not considered performance obligations and related costs are included in cost of sales as incurred.

Differences in the timing of revenue recognition and contractual billing and payment terms result in the recognition contract assets and liabilities. Refer to Note 4 for further discussion.

In connection with several of prior acquisitions, the Company assumed existing long-term contracts. Based on review of these contracts at the acquisition date, the Company concluded that the terms of certain contracts were either more or less favorable than could be realized in market transactions as of the date of the acquisition. As a result, the Company recognized acquired contract liabilities, net of acquired contract assets as of the acquisition date of each respective acquisition, based on the present value of the difference between the contractual cash flows of the executory contracts and the estimated cash flows had the contracts been executed at the acquisition date. The liabilities principally relate to long-term contracts that were initially executed several years prior to the respective acquisition. The Company measured these net liabilities in the year they were acquired under the measurement provisions of ASC 820, Fair Value Measurement, which is based on the price to transfer the obligation to a market participant at the measurement date, assuming that the net liabilities will remain outstanding in the marketplace. The portion of the Company's revenue resulting from transactions other than contracts with customers pertains to the amortization of these acquired contract liabilities as the related contractual performance obligations are satisfied.  Adjustments to these liabilities due to significant changes in the total estimated costs of the contract are accounted for in a manner consistent with other loss contract reserves, with such adjustments recognized in cost of sales.

The balance of the liability as of March 31, 2021, is $43,888 and, based on the expected delivery schedule of the underlying contracts, the Company estimates annual amortization of the liability as follows: 2022 — $22,897; 2023 — $3,347; 2024 — $2,501; 2025 — $2,564; 2026 — $1,282; thereafter $11,296.

Leases

The Company leases office space, manufacturing facilities, land, vehicles, and equipment. The Company determines if an agreement is or contains a lease at the lease inception date and recognizes right-of-use assets (“ROU”) and lease liabilities at the lease commencement date. A ROU asset and corresponding lease liability are not recorded for leases with an initial term of 12 months or less (“short-term leases”).

ROU assets represent the Company's right to use an underlying asset during the lease term, and lease liabilities represent the Company's obligation to make lease payments arising from the lease. The determination of the length of lease terms is affected by options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option. The existence of significant economic incentive is the primary consideration when assessing whether the Company is reasonably certain of exercising an option in a lease. Both finance and operating lease ROU assets and liabilities are recognized at commencement date and measured as the present value of lease payments to be made over the lease term. As the interest rate implicit in the lease is not readily available for most of the Company's leases, the Company uses its estimated incremental borrowing rate in determining the present value of lease payments. The estimated incremental borrowing rate is derived from information available at the lease commencement date. The lease ROU asset recognized at commencement is adjusted for any lease payments related to initial direct costs, prepayments, and lease incentives.

For operating leases, lease expense is recognized on a straight-line basis over the lease term. For finance leases, lease expense comprises the amortization of the ROU assets recognized on a straight-line basis generally over the shorter of the lease term or the estimated useful life of the underlying asset and interest on the lease liability. Variable lease payments not dependent on a rate or index are recognized when the event, activity, or circumstance in the lease agreement upon which those payments are contingent is probable of occurring and are presented in the same line of the consolidated balance sheet as the rent expense arising from fixed payments. The Company has lease agreements with lease and non-lease components. Non-lease components are combined with the related lease components and accounted for as lease components for all classes of underlying assets.

Retirement Benefits

Defined benefit pension plans are recognized in the consolidated financial statements on an actuarial basis. A significant element in determining the Company's pension income (expense) is the expected long-term rate of return on plan assets. This expected return is an assumption as to the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the projected pension benefit obligation. The Company applies this assumed long-term rate of return to a calculated value of plan assets, which recognizes changes in the fair value of plan assets in a systematic manner over five years. This produces the expected return on plan assets that is included in pension income (expense). The difference between this expected return and the actual return on plan assets is deferred. The net deferral of past asset gains (losses) affects the calculated value of plan assets and, ultimately, future pension income (expense).

The Company periodically experiences events or makes changes to its benefit plans that result in curtailment or special charges. Curtailments are recognized when events occur that significantly reduce the expected years of future service of present employees or eliminates the benefits for a significant number of employees for some or all of their future service.

Curtailment losses are recognized when it is probable the curtailment will occur and the effects are reasonably estimable. Curtailment gains are recognized when the related employees are terminated or a plan amendment is adopted, whichever is applicable.

From time to time, the Company may enter into transactions that relieve it of primary responsibility for all or more than a minor portion of certain of its pension benefit obligations.  When these transactions are effected through an irrevocable action that relieves the Company of primary responsibility for its pension or other postretirement benefit obligations and eliminates significant risks related to the obligation and the related assets used to effect the transaction, they are considered settlements, as defined by ASC 715, Compensation – Retirement Benefits.  When a transaction meets the definition of a settlement, at the time of settlement the Company recognizes as a gain or loss the pro rata amount of the net gain or loss in accumulated other comprehensive income based on the proportion of the projected benefit obligation settled to the total projected benefit obligation.  

As required under ASC 715, the Company remeasures plan assets and obligations during an interim period whenever a significant event occurs that results in a material change in the net periodic pension cost. The determination of significance is based on judgment and consideration of events and circumstances impacting the pension costs.

At March 31 of each year, the Company determines the fair value of its pension plan assets as well as the discount rate to be used to calculate the present value of plan liabilities. The discount rate is an estimate of the interest rate at which the pension benefits could be effectively settled. In estimating the discount rate, the Company looks to rates of return on high-quality, fixed-income investments currently available and expected to be available during the period to maturity of the pension benefits. The Company uses a portfolio of fixed-income securities, which receive at least the second-highest rating given by a recognized ratings agency.

Fair Value Measurements

Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. When determining fair value measurements for assets and liabilities required to be recorded at fair value, the Company considers the principal or most advantageous market in which it would transact and also considers assumptions that market participants would use when pricing an asset or liability. The fair value hierarchy has three levels of inputs that may be used to measure fair value: Level 1—Unadjusted quoted prices in active markets for identical assets or liabilities; Level 2—Unadjusted quoted prices in active markets for similar assets or liabilities, or unadjusted quoted prices for identical or similar assets or liabilities in markets that are not active, or inputs other than quoted prices that are observable for the asset or liability; and Level 3—Unobservable inputs for the asset or liability. The Company has applied fair value measurements when measuring the impairment of assets held for sale (see Note 3), when measuring long-lived asset impairment in the current period (see above within the disclosure of the Company’s goodwill and intangible asset accounting policies), and to its pension and postretirement plan assets (see Note 15).

Income Taxes

The Company accounts for income taxes using the asset and liability method. The asset and liability method requires recognition of deferred tax assets and liabilities for expected future tax consequences of temporary differences that currently exist between tax bases and financial reporting bases of the Company's assets and liabilities. A valuation allowance is provided on deferred taxes if it is determined that it is more likely than not that the asset will not be realized.

Management judgment is required to determine the amount of benefit to be recognized in relation to an uncertain tax position. The Company uses a two-step process to evaluate tax positions. The first step requires an entity to determine whether it is more likely than not (greater than 50% chance) that the tax position will be sustained. The second step requires an entity to recognize in the financial statements the benefit of a tax position that meets the more-likely-than-not recognition criterion. The amounts ultimately paid upon resolution of issues raised by taxing authorities may differ materially from the amounts accrued and may materially impact the financial statements of the Company in future periods. The Company recognizes penalties and interest accrued related to income tax liabilities in the provision for income taxes on its consolidated statements of operations.

Supplemental Cash Flow Information

For the fiscal year ended March 31, 2021, the Company paid $2,297 for income taxes, net of income tax refunds received. For the fiscal year ended March 31, 2020, the Company paid $4,005 for income taxes, net of income tax refunds received.  For the fiscal year ended March 31, 2019, the Company received $4,701 as income tax refunds, net of tax paid.

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Divested Operations and Assets Held For Sale

12 Months Ended

Mar. 31, 2021

Discontinued Operations And Disposal Groups [Abstract]

Divested Operations and Assets Held For Sale

3.    DIVESTED OPERATIONS AND ASSETS HELD FOR SALE

Assets Held for Sale

In May 2020, the Company’s Board of Directors committed to a plan to sell its composites manufacturing operations located in Milledgeville, Georgia and Rayong, Thailand.  In August 2020, the Company entered into a definitive agreement with the buyer of the composites manufacturing operations in Georgia and Thailand. In February 2021, the Company entered into a definitive agreement to sell its manufacturing operations in Red Oak, Texas, to the same buyer of the Milledgeville and Rayong composites manufacturing operations.  These transactions closed in May 2021. In the year ended March 31, 2021, the Company adjusted the carrying amount of its assets held for sale to its estimated fair value less cost to sell and recognized a loss $102,493 due to decreases in actual and expected performance of certain widebody programs within the disposal group that affected this estimate.  The impairment is presented on the accompanying consolidated statements of operations within loss on sale of assets and businesses.  To measure the amount of the impairment, the Company compared the carrying value of the assets and liabilities of the disposal group with their estimated fair value less cost to sell as of the balance sheet date.  The estimate of fair value is categorized as Level 2 within the fair value hierarchy.  The key assumptions used in the estimate of fair value is the negotiated sales price of the assets and the assumption of the disposal group’s liabilities.  As of March 31, 2021, the operating results of these related operations are included within the Aerospace Structures reportable segment, and the related assets and liabilities are classified as held for sale on the accompanying consolidating balance sheets.

Fiscal 2021 Divestitures

In August 2020, the Company completed the transfer of the assets and certain liabilities associated with its Gulfstream G650 wing supply chain activities for cash proceeds net of transaction costs of approximately $51,000. This transaction also resulted in the derecognition of approximately $18,157 in accrued warranties related to these activities.  The Company recognized a loss of approximately $819, which is presented on the accompanying consolidated statements of operations within loss on sale of assets and businesses. The operating results associated with the G650 wing supply chain activities were included within Aerospace Structures through the date of transfer.  

Fiscal 2020 Divestitures

In December 2019, the Company completed the sale of its manufacturing operations at its Nashville, Tennessee, facility for cash proceeds net of transaction costs of approximately $58,000, including approximately $7,000 allocated as a premium paid by the buyer in exchange for a specified performance guarantee.  The Company recognized a loss of approximately $64,000, which is presented on the accompanying consolidated statements of operations within loss on sale of assets and businesses.  The operating results of the Nashville manufacturing operations were included in Aerospace Structures through the date of divestiture.  Additionally, as part of the transaction, the Company agreed to transfer to the buyer, within 120 days from the date of closing, certain defined benefit pension assets and obligations of approximately $55,000 associated with the Nashville manufacturing operations.  In accordance with applicable defined benefit pension plan accounting guidance, the transfer was treated as a settlement for purposes of the Company’s consolidated financial statements and resulted in accelerated recognition of previously unrecognized actuarial losses.  The Company completed the transfer of the defined benefit pension assets and obligations in March 2020 and recognized a one-time settlement loss of approximately $28,000.

In September 2019, the Company completed the assignment of its E-2 Jets contract with Embraer for the manufacture of structural components for their program to AeroSpace Technologies of Korea Inc. ("ASTK").  As part of this transaction, the Company transferred certain assets and liabilities to ASTK and recognized a gain of approximately $10,000, which is presented on the accompanying consolidated statements of operations within loss on sale of assets and businesses.  The assets and liabilities transferred were included within Aerospace Structures through the date of divestiture.

Fiscal 2019 Divestitures

In March 2019, the Company sold all of the shares of Triumph Structures – Kansas City, Inc.; Triumph Structures – Wichita, Inc.; Triumph Gear Systems – Toronto; ULC; and Triumph Northwest (The Triumph Group Operations, Inc.) (together, "Machining").  Total cash proceeds net of transaction costs for the sale of Machining was approximately $43,000.  A portion of the proceeds associated with the sale of Machining included consideration in the form of a note receivable of $10,000.   Upon closing, the Company recognized a loss of approximately $116,000.  An additional loss of approximately $3,000 was recognized during fiscal 2020, as a result of working capital adjustments and additional transaction costs and is presented within loss on sale of assets and businesses on the accompanying consolidated statements of operations.

In March 2019, the Company sold all of the shares of (i) Triumph Fabrications - San Diego, Inc. and Triumph Fabrications - Ft. Worth, Inc. (together, "Fabrications"), and (ii) Triumph Aviation Services - NAAS Division, Inc. ("NAAS").  Total cash proceeds net of transaction costs for the sales of Fabrications and NAAS were approximately $133,000 and $18,000, respectively.  As a result of the sales of Fabrications, the Company recognized a gain of approximately $54,000.  The sale of NAAS resulted in an immaterial gain.

In February 2019, the Company transitioned responsibility for the Global 7500 wing program manufacturing operations of Aerospace Structures to Bombardier at which point Bombardier assumed the program’s assets and obligations.  As a result of this transfer, the Company recognized a loss of approximately $169,000.  The Company continued to provide transition services related to infrastructure support through December 2020, as well as a lease of the building in Red Oak, Texas, dedicated to the manufacturer of the Global 7500 wing to Bombardier.

In July and August 2018, respectively, the Company sold all of the shares of Triumph Structures - East Texas, Inc. as well as all of the shares of Triumph Structures - Los Angeles, Inc., and Triumph Processing, Inc. for combined cash proceeds net of transactions costs of approximately $43,000 and a note receivable of $7,000.  The note receivable was collected in October 2018.  As a result of these sales, the Company recognized losses of approximately $17,000, which are presented on the accompanying consolidated statements of operations within loss on sale of assets and businesses.

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Revenue Recognition and Contracts with Customers

12 Months Ended

Mar. 31, 2021

Change In Contract With Customer Asset And Liability [Abstract]

Revenue Recognition and Contracts with Customers

4.    REVENUE RECOGNITION AND CONTRACTS WITH CUSTOMERS

Disaggregation of Revenue

The Company disaggregates revenue based on the method of measuring satisfaction of the performance obligation either over time or at a point in time. Additionally, the Company disaggregates revenue based upon the end market where products and

services are transferred to the customer. The Company’s principal operating segments and related revenue are discussed in Note 21, Segments.

The following table shows disaggregated net sales satisfied overtime and at a point in time (excluding intercompany sales) for the years ended March 31, 2021 and 2020:

	Year Ended March 31,
	2021		2020
Systems & Support
Satisfied over time	$	464,874	$	578,117
Satisfied at a point in time		576,886		738,158
Revenue from contracts with customers		1,041,760		1,316,275
Amortization of acquired contract liabilities		15,062		34,486
Total revenue		1,056,822		1,350,761
Aerospace Structures
Satisfied over time	$	746,545	$	1,378,866
Satisfied at a point in time		42,850		129,690
Revenue from contracts with customers		789,395		1,508,556
Amortization of acquired contract liabilities		23,502		40,800
Total revenue		812,897		1,549,356
	$	1,869,719	$	2,900,117

The following table shows disaggregated net sales by end market (excluding intercompany sales) for the years ended March 31, 2021 and 2020:

	Year Ended March 31,
	2021		2020
Systems & Support
Commercial aerospace	$	396,841	$	737,885
Military		552,323		436,166
Business jets		36,701		61,338
Regional		24,862		43,761
Non-aviation		31,033		37,125
Revenue from contracts with customers		1,041,760		1,316,275
Amortization of acquired contract liabilities		15,062		34,486
Total revenue	$	1,056,822	$	1,350,761
Aerospace Structures
Commercial aerospace	$	481,845	$	879,690
Military		137,466		116,846
Business jets		158,156		422,681
Regional		11,558		89,318
Non-aviation		370		21
Revenue from contracts with customers		789,395		1,508,556
Amortization of acquired contract liabilities		23,502		40,800
Total revenue		812,897		1,549,356
	$	1,869,719	$	2,900,117

Contract Assets and Liabilities

Contract assets primarily represent revenues recognized for performance obligations that have been satisfied or partially satisfied but for which amounts have not been billed. This typically occurs when revenue is recognized over time but the Company's contractual right to bill the customer and receive payment is conditional upon the satisfaction of additional performance obligations in the contract, such as final delivery of the product. Contract assets are recognized when the revenue associated with the contract is recognized prior to billing and derecognized when billed in accordance with the terms of the contract. The Company pools contract assets that share underlying risk characteristics and records an allowance for expected credit losses based on a combination of prior experience, current economic conditions and management’s expectations of future economic conditions, and specific collectibility matters when they arise.  Contract assets are presented net of this reserve on the accompanying consolidated balance sheets. For the years ended March 31, 2021 and 2020, credit loss expense and write-offs related to contract assets were immaterial.

Contract liabilities are recorded when customers remit contractual cash payments in advance of the Company satisfying performance obligations under contractual arrangements, including those with performance obligations to be satisfied over a period of time. Contract liabilities other than those pertaining to forward loss reserves are derecognized when or as revenue is recognized.

Contract modifications can also impact contract asset and liability balances. When contracts are modified to account for changes in contract specifications and requirements, the Company considers whether the modification either creates new or changes the existing enforceable rights and obligations. Contract modifications that are for goods or services that are not distinct from the existing contract, due to the significant integration with the original good or service provided, are accounted for as if they were part of that existing contract. The effect of a contract modification to an existing contract on the transaction price and the Company’s measure of progress for the performance obligation to which it relates, is recognized as an adjustment to revenue (either as an increase in or a reduction of revenue) on a cumulative catch-up basis. When the modifications include additional performance obligations that are distinct and at relative stand-alone selling price, they are accounted for as a new contract and performance obligation, which are recognized prospectively.

Contract balances are classified as assets or liabilities on a contract-by-contract basis at the end of each reporting period. The following table summarizes the Company’s contract assets and liabilities balances:

	March 31, 2021			March 31, 2020			Change
Contract assets	$	139,937		$	267,079		$	(127,142	)
Contract liabilities		(305,116	)		(386,585	)		81,469
Net contract liability	$	(165,179	)	$	(119,506	)	$	(45,673	)

The Company recognized revenue due to changes in estimates associated with performance obligations satisfied or partially satisfied in previous periods of $4,796. The change in contract assets is the result of the settlement of approximately $60,802 of contract assets associated with the Gulfstream G650 wing supply chain transfer as well as the reclassification of approximately $76,821 of contract assets as held for sale on the accompanying consolidated balance sheet as of March 31, 2021.  These decreases were partially offset by revenue recognized in excess of amounts billed during the year ended March 31, 2021.   The change in contract liabilities is the result of revenue recognized in excess of the receipt of additional customer advances during the period as well as the reclassification of approximately $7,562 of contract liabilities as held for sale on the accompanying consolidated balance sheet as of March 31, 2021. For the period ended March 31, 2021, the Company recognized $78,725 of revenue that was included in the contract liability balance at the beginning of the period. Noncurrent contract assets presented in other, net on the accompanying consolidated balance sheets as of March 31, 2021 and 2020, were $5,299 and $22,662, respectively. Noncurrent contract liabilities presented in other noncurrent liabilities on the accompanying consolidated balance sheets as of March 31, 2021 and 2020, were $100,737 and $91,265, respectively.

Performance Obligations

Customers generally contract with the Company for requirements in a segment relating to a specific program, and the Company’s performance obligations consist of a wide range of engineering design services and manufactured components, as well as spare parts and repairs for OEMs. A single contract may contain multiple performance obligations consisting of both recurring and nonrecurring elements.

As of March 31, 2021, the Company has the following unsatisfied, or partially unsatisfied, performance obligations that are expected to be recognized in the future as noted in the table below. The Company expects options to be exercised in addition to the amounts presented below.

	Total		Less than 1 year		1-3 years		4-5 years		More than 5 years
Unsatisfied performance obligations	$	2,273,527	$	1,251,209	$	961,332	$	60,889	$	97

Of the total unsatisfied performance obligations included in the table above as of March 31, 2021, approximately $433,262 related to divestitures occurring subsequent to March 31, 2021, as disclosed in Note 22.  

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Inventories

12 Months Ended

Mar. 31, 2021

Inventory Disclosure [Abstract]

Inventories

5.    INVENTORIES

The Company records inventories at the lower of cost (average-cost or specific-identification methods) or market. The Company expenses general and administrative costs related to products and services provided essentially under commercial terms and conditions as incurred. The Company determines the costs of inventories sold by the first-in, first-out or average cost methods.

The components of inventories are as follows:

	March 31,
	2021		2020
Raw materials	$	45,211	$	32,552
Work-in-process, including manufactured and purchased components		277,729		312,953
Finished goods		51,221		50,011
Rotable assets		26,205		57,460
Total inventories	$	400,366	$	452,976

The Company recognized an impairment loss of approximately $23,689 on certain rotable inventory that primarily arose as a result of customer fleet retirement announcements resulting from the COVID-19 pandemic.  The impairment loss is included in cost of sales on the accompanying consolidated statements of operations for the year ended March 31, 2021.

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Property and Equipment

12 Months Ended

Mar. 31, 2021

Property Plant And Equipment [Abstract]

Property and Equipment

6.    PROPERTY AND EQUIPMENT

Property and equipment, which include equipment under finance lease and leasehold improvements, are recorded at cost and depreciated over the estimated useful lives of the related assets, or the lease term if shorter in the case of leasehold improvements, using the straight-line method. Buildings and improvements are depreciated over a period of 15 to 39.5 years, and machinery and equipment are depreciated over a period of 7 to 15 years (except for furniture, fixtures and computer equipment, which are depreciated over a period of 3 to 10 years).

Net property and equipment is:

	March 31,
	2021		2020
Land	$	17,814	$	42,438
Construction-in-process		11,368		19,231
Buildings and improvements		144,756		285,407
Machinery and equipment		594,542		701,018
		768,480		1,048,094
Less: accumulated depreciation		557,111		629,953
	$	211,369	$	418,141

Depreciation expense for the fiscal years ended March 31, 2021, 2020, and 2019, was $71,651, $89,857 and $97,323, respectively, which includes depreciation of assets under finance lease.

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Goodwill and Other Intangible Assets

12 Months Ended

Mar. 31, 2021

Goodwill And Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

7.    GOODWILL AND OTHER INTANGIBLE ASSETS

The following is a summary of the changes in the carrying value of goodwill by reportable segment, for the fiscal years ended March 31, 2021 and 2020:

	Systems & Support
March 31, 2020	$	513,527
Effect of exchange rate changes		8,111
March 31, 2021	$	521,638

	Systems & Support
March 31, 2019	$	583,225
Effect of exchange rate changes		(3,577	)
Impairment of goodwill		(66,121	)
March 31, 2020	$	513,527

As of March 31, 2021 and 2020, Aerospace Structures had gross goodwill of $871,387 and $1,166,773, respectively, which was fully impaired.  As of March 31, 2021 and 2020, Systems & Support had gross goodwill of $587,759 and $579,649, respectively, and accumulated goodwill impairment of $66,121 and $66,121, respectively.  

Intangible Assets

The components of intangible assets, net are as follows:

	March 31, 2021
	Weighted- Average Life (in Years)		Gross Carrying Amount		Accumulated Amortization			Net
Customer relationships		17.9	$	170,198	$	(74,253	)	$	95,945
Product rights, technology and licenses		11.4		55,050		(48,645	)		6,405
Other		30.0		300		(197	)		103
Total intangibles, net			$	225,548	$	(123,095	)	$	102,453

	March 31, 2020
	Weighted- Average Life (in Years)		Gross Carrying Amount		Accumulated Amortization			Net
Customer relationships		17.7	$	550,131	$	(276,980	)	$	273,151
Product rights, technology and licenses		11.4		54,676		(46,180	)		8,496
Noncompete agreements and other		16.7		2,656		(1,208	)		1,448
Tradenames		10.0		150,000		(51,127	)		98,873
Total intangibles, net			$	757,463	$	(375,495	)	$	381,968

Amortization expense for the fiscal years ended March 31, 2021, 2020, and 2019, was $22,551, $48,311, and $52,581, respectively. Amortization expense for the five fiscal years succeeding March 31, 2021, by year is expected to be as follows: 2022: $11,846; 2023: $11,846; 2024: $11,846; 2025: $11,846; 2026: $11,432, and thereafter: $43,639.

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Accrued Expenses

12 Months Ended

Mar. 31, 2021

Accrued Liabilities Current And Noncurrent [Abstract]

Accrued Expenses

8.    ACCRUED EXPENSES

Accrued expenses consist of the following items:

	March 31,
	2021		2020
Accrued pension	$	1,097	$	753
Accrued other postretirement benefits		3,371		4,775
Accrued compensation and benefits		97,021		84,404
Accrued interest		31,036		13,252
Accrued warranties		24,492		30,079
Accrued workers' compensation		15,601		16,583
Accrued income tax		5,084		3,796
Operating lease liabilities		11,605		13,139
All other		81,853		60,622
Total accrued expenses	$	271,160	$	227,403

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Leases

12 Months Ended

Mar. 31, 2021

Leases [Abstract]

Leases

9.    LEASES

The components of lease expense for the year ended March 31, 2021, are disclosed in the table below.

		Year Ended March 31,
Lease Cost	Financial Statement Classification	2021		2020
Operating lease cost	Cost of sales or Selling, general and administrative expense	$	22,976	$	24,539
Variable lease cost	Cost of sales or Selling, general and administrative expense		9,344		8,382
Financing Lease Cost:
Amortization of right-of-use assets	Depreciation and amortization		4,673		5,317
Interest on lease liability	Interest expense and other		1,580		2,307
Total lease cost (1)		$	38,573	$	40,545

(1) Total lease cost does not include short-term leases or sublease income, both of which are immaterial.

Supplemental cash flow information for the years ended March 31, 2021 and 2020, is disclosed in the table below.

	2021		2020
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows used in operating leases	$	21,008	$	21,430
Operating cash flows used in finance leases		1,583		2,327
Financing cash flows used in finance leases		7,774		8,370
ROU assets obtained in exchange for lease liabilities
Operating leases		6,547		3,826
Finance leases	$	2,909	$	1,039

Supplemental balance sheet information related to leases as of March 31, 2021 and 2020, is disclosed in the table below.

		March 31,
Leases	Classification	2021			2020
Assets
Operating lease ROU assets	Other, net Assets held for sale	$	46,643		$	61,461
Finance lease ROU assets, cost	Property and equipment, net Assets held for sale		44,128			39,461
Accumulated amortization	Property and equipment, net Assets held for sale		(23,344	)		(18,650	)
Finance lease ROU assets, net			20,784			20,811
Total lease assets		$	67,427		$	82,272
Liabilities
Current
Operating	Accrued expenses Liabilities related to assets held for sale	$	12,885		$	13,139
Finance	Current portion of long-term debt Liabilities related to assets held for sale		5,972			7,336
Noncurrent
Operating	Other noncurrent liabilities Liabilities related to assets held for sale		42,385			54,687
Finance	Long-term debt, less current portion Liabilities related to assets held for sale		14,878			16,597
Total lease liabilities		$	76,120		$	91,759

Information related to lease terms and discount rates as of March 31, 2021 and 2020, is disclosed in the table below.

	2021			2020
Weighted average remaining lease term (years)
Operating leases		7.3			7.2
Finance leases		6.9			6.9
Weighted average discount rate
Operating leases		6.3	%		6.2	%
Finance leases		6.8	%		5.9	%

The maturity of the Company's lease liabilities as of March 31, 2021, is disclosed in the table below.

	Operating leases			Finance leases			Total
FY2022	$	15,752		$	7,436		$	23,188
FY2023		10,561			4,322			14,883
FY2024		7,057			3,520			10,577
FY2025		6,339			1,961			8,300
FY2026		5,880			1,305			7,185
Thereafter		23,912			8,656			32,568
Total lease payments		69,501			27,200			96,701
Less: Imputed interest		(14,231	)		(6,350	)		(20,581	)
Total lease liabilities	$	55,270		$	20,850		$	76,120

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Long-term Debt

12 Months Ended

Mar. 31, 2021

Debt Disclosure [Abstract]

Long-Term Debt

10.    LONG-TERM DEBT

Long-term debt consists of the following:

	March 31,
	2021			2020
Revolving credit facility	$	—		$	400,000
Receivable securitization facility		—			75,000
Finance leases		20,125			23,933
Senior secured first lien notes due 2024		700,000			—
Senior secured notes due 2024		525,000			525,000
Senior notes due 2022		236,471			300,000
Senior notes due 2025		500,000			500,000
Less: debt issuance costs		(24,053	)		(16,426	)
		1,957,543			1,807,507
Less: current portion		5,247			7,336
	$	1,952,296		$	1,800,171

Revolving Credit Facility

On August 17, 2020, the Company repaid the loans and other amounts outstanding under its Revolving Credit Facility, which was governed by the Revolving Credit Agreement and terminated all commitment thereunder.  The payment of $335,240 was made using a portion of the proceeds from the issuance of the First Lien Notes.  The Company initially cash collateralized the letters of credit issued under the Revolving Credit Agreement but now have the ability to issue letters of credit under the Securitization Facility.  

Receivables Securitization Program

On August 17, 2020, the Company entered into amendments to its Securitization Facility.  The August amendments removed the covenants that required the Company to maintain certain financial ratios.  As of March 31, 2021, the maximum amount available under the Securitization Facility was $75,000, and the Company has the ability to reduce the facility amount to not less than $50,000.  The actual amount available under the Securitization Facility at any point in time is dependent upon the balance of eligible accounts receivables as well as the amount of letters of credit outstanding.

On September 29, 2020, the Company entered into additional amendments to the Securitization Facility.  The September amendments provide the Company with enhanced liquidity options by establishing a letter of credit facility under the Securitization Facility which effectively replaces a similar limited letter of credit facility under the Revolving Credit Facility Amendment. Pursuant to the letter of credit facility, the Company may request the Securitization Facility’s administrator to issue one or more letters of credit that will expire no later than 12 months after the date of issuance, extension or renewal, as applicable.

In connection with the Securitization Facility, the Company sells on a revolving basis certain eligible accounts receivable to Triumph Receivables, LLC, a wholly-owned special-purpose entity, which in turn sells a percentage ownership interest in the receivables to commercial paper conduits sponsored by financial institutions.  The Company is the servicer of the trade accounts receivable under the Securitization Facility.  Interest rates are based on the lesser of 0.75% or the London Interbank Offered Rate (“LIBOR”), plus a 2.50% fee on the drawn portion and 0.60% fee on the undrawn portion of the Securitization Facility.  The Company secures its trade accounts receivable, which are generally non-interest-bearing, in transactions that are accounted for as borrowings pursuant to ASC 860, Transfers and Servicing.  At March 31, 2021, there were $0 in borrowings and $27,763 in letters of credit outstanding under the Securitization Facility, primarily to support insurance policies.  The Securitization Facility expires in December 2022.

The agreements governing the Securitization Facility contain restrictions and covenants, including limitations on the making of certain restricted payments; creation of certain liens; and certain corporate acts such as mergers, consolidations and the sale of all or substantially all the Company's assets.

Senior Secured First Lien Notes due 2024

On August 17, 2020, the Company issued $700,000 principal amount of 8.875% Senior Secured First Lien Notes due June 1, 2024 (the “First Lien Notes”) pursuant to an indenture among the Company, the Guarantor Subsidiaries (as defined below) and U.S. Bank National Association, as trustee (the “First Lien Notes Indenture”). The First Lien Notes were sold at 100% of the principal amount and have an effective interest yield of 8.875%.  Interest is payable semi-annually in cash in arrears on June 1 and December 1 of each year, commencing on December 1, 2020.  In connection with the issuance of the First Lien Notes, the Company incurred approximately $13,000 of costs, which were deferred and are being amortized over the term of the First Lien Notes.

The First Lien Notes and the guarantees are first lien secured obligations of the Company and the Guarantor Subsidiaries.  The First Lien Notes:

• rank equally in right of payment to any existing and future senior indebtedness of the Company and Guarantor Subsidiaries, including the 2022 Notes, the 2024 Notes, and the 2025 Notes, (each as defined below and collectively, the “Existing Notes”);

• are effectively senior to all existing and future second lien obligations (including the 2024 Notes) and all existing and future unsecured indebtedness of the Company and the Guarantor Subsidiaries, but only to the extent of the value of the Collateral (as defined below), and after giving effect to any permitted additional first lien secured obligations and other permitted liens of senior or equal priority);

• are senior in right of payment to all future subordinated indebtedness of the Company and the Guarantor Subsidiaries;

• are secured by the Collateral on a pari passu basis with any future permitted additional first lien secured obligations, subject to the Collateral Trust Agreement (as defined below);

• are effectively subordinated to any existing and future obligations of the Company and the Guarantor Subsidiaries that are secured by assets that do not constitute the Collateral, in each case, to the extent of the value of the assets securing such obligations; and

• are structurally subordinated to all existing and future indebtedness and other liabilities of the Company’s existing and future subsidiaries that do not guarantee the First Lien Notes, including the Receivables Securitization Facility.

The First Lien Notes are guaranteed on a full, senior secured, joint and several basis by each of the Company’s domestic restricted subsidiaries (the “Guarantor Subsidiaries”) that guarantees any of the Company’s Existing Notes.  In the future, each of the Company’s domestic restricted subsidiaries (other than any domestic restricted subsidiary that is a receivable subsidiary) that (1) is not an immaterial subsidiary, (2) becomes a borrower under any of its material debt facilities or (3) guarantees (a) any of the Company’s indebtedness or (b) any indebtedness of the Company’s domestic restricted subsidiaries, in the case of either (a) or (b), incurred under any of the Company’s material debt facilities, will guarantee the First Lien Notes. Under certain circumstances, the guarantees may be released without action by, or consent of, the holder of the First Lien Notes.

The First Lien Notes and the guarantees will be secured, subject to permitted liens, by first-priority liens on substantially all of the Company’s and the Guarantor Subsidiaries’ assets (including certain of the Company’s real estate assets), whether now owned or hereafter acquired, other than certain excluded property, which liens will secure permitted additional first lien obligations on a pari passu basis, subject to the Collateral Trust Agreement and will rank senior to those that secure the 2024 Notes (the “Collateral”). Under certain circumstances, the Collateral may be released without action by, or the consent of, the holders of the First Lien Notes. The First Lien Notes and the guarantees will not be secured by the assets of Non-Guarantor Subsidiaries (as defined below), which include the unrestricted subsidiaries to whom certain of the Company’s accounts receivables are and may in the future be sold to support borrowing under the Receivables Securitization Facility.

Pursuant to an intercreditor agreement (the “Intercreditor Agreement”) between Wilmington Trust, National Association, in its capacity as the collateral trustee (the “Collateral Trustee”) and U.S. Bank National Association, in its capacity as second lien collateral agent for the 2024 Notes, the liens on the Collateral securing the First Lien Notes and all future first lien obligations will be made expressly senior to the liens securing the 2024 Notes.

A collateral trust agreement (the “Collateral Trust Agreement”) among the Company, the Guarantor Subsidiaries, the Collateral Trustee and U.S. Bank National Association, in its capacity as the trustee for the First Lien Notes, will set forth therein the relative rights with respect to the Collateral as among the trustee for the First Lien Notes and certain subsequent holders of first lien obligations and covering certain other matters relating to the administration of security interests. The Collateral Trust Agreement will generally control substantially all matters related to the Collateral, including with respect to decisions, distribution of proceeds or enforcement. Pursuant to the Collateral Trust Agreement, on the issue date of the First Lien Notes the Collateral Trustee will control certain matters related to the Collateral that the Collateral Trust Agreement specifies are in its discretion. If the Company incurs certain types of additional first lien obligations, the Controlling First Lien Holders (as defined in the Collateral Trust Agreement) will have the right to control decisions relating to the Collateral that are outside the Collateral Trustee’s discretion under the Collateral Trust Agreement and the First Lien Note holders may no longer be in control of such decisions.

The Company may redeem the First Lien Notes, in whole or in part, at any time or from time to time on or after February 1, 2023, at specified redemption prices, plus accrued and unpaid interest, if any, to the redemption date. At any time or from time to time prior to February 1, 2023, the Company may redeem the First Lien Notes, in whole or in part, at a redemption price equal to 100% of their principal amount plus a make whole premium, together with accrued and unpaid interest, if any, to the redemption date. In addition, the Company may redeem up to 40% of the aggregate principal amount of the outstanding First Lien Notes prior to June 1, 2023, with the net cash proceeds from certain equity offerings at a redemption price equal to 108.875% of their principal amount, together with accrued and unpaid interest, if any, to the redemption date.

If the Company experiences specific kinds of changes of control, the Company is required to offer to purchase all of the First Lien Notes at a purchase price of 101% of their principal amount, plus accrued and unpaid interest, if any, to the date of purchase.

The First Lien Notes Indenture contains covenants that, among other things, limit the ability of the Company and its restricted subsidiaries to: (i) incur additional indebtedness; (ii) pay dividends or make other distributions; (iii) make other restricted payments and investments; (iv) create liens; (v) incur restrictions on the ability of restricted subsidiaries to pay dividends or make certain other payments; (vi) sell assets, including capital stock of restricted subsidiaries; (vii) enter into sale and leaseback transactions; (viii) merge or consolidate with other entities; and (ix) enter into transactions with affiliates. In addition, the First Lien Notes Indenture requires, among other things, the Company to provide financial and current reports to holders of the First Lien Notes or file such reports electronically with the SEC.  Furthermore, the First Lien Notes Indenture requires that the future net proceeds from certain asset sales will be required to repay the First Lien Notes at a premium of 106.656%, until the aggregate principal amount of Notes outstanding is $350,000 or less, provided that the Company may retain the first $100,000 of such net proceeds (subject to compliance with the asset sale covenants in the Company’s other outstanding indentures) or use it for certain other permitted purposes. These covenants are subject to a number of exceptions, limitations and qualifications set forth in the Indenture, as well as suspension periods in certain circumstances.

Senior Secured Notes Due 2024

On September 23, 2019, the Company issued $525,000 principal amount of 6.250% Senior Secured Notes due September 15, 2024. The 2024 Notes were sold at 100% of principal amount and have an effective interest yield of 6.250%. Interest is payable semiannually in cash in arrears on March 15 and September 15 of each year, commencing on March 15, 2020. In connection with the issuance of the 2024 Notes, the Company incurred approximately $9,300 of costs, which were deferred and are being amortized over the term of the 2024 Notes.

The 2024 Notes are second lien secured obligations of the Company and its subsidiary guarantors. The 2024 Notes:

(i) rank equal in right of payment to existing and future senior indebtedness of the Company and its subsidiary guarantors, including the obligations of the Company and its subsidiary guarantors under the Company’s credit facility;

(ii) are effectively subordinated to all obligations of the Company and its subsidiary guarantors that are either (A) secured by a lien on the Collateral (as defined below) that is senior or prior to the second-priority liens securing the 2024 Notes, including the first-priority liens securing borrowings under the Company’s credit facility and certain cash management and hedging obligations, or (B) secured by assets that do not constitute the Collateral, in each case to the extent of the value of the assets securing such obligations;

(iii) are senior in right of payment to existing and future subordinated indebtedness of the Company and its subsidiary guarantors;

(iv) are effectively senior to all existing and future unsecured debt of the Company and its subsidiary guarantors, but only to the extent of the value of the Collateral (after giving effect to any senior liens on the Collateral); and

(v) are structurally subordinated in right of payment to all indebtedness and other liabilities of the Company’s existing and future subsidiaries that do not guarantee the 2024 Notes.

The 2024 Notes are guaranteed on a full, senior secured, joint and several basis by each of the Company’s domestic restricted subsidiaries that is a borrower under the Company’s credit facility or that guarantees any of the Company’s debt or that of any of the Company’s domestic restricted subsidiaries under the Company’s credit facility and in the future by any of the Company’s domestic restricted subsidiaries that are borrowers under any credit facility or that guarantee any debt of the Company or any of its domestic restricted subsidiaries incurred under any credit facility (the "Guarantor Subsidiaries").

The Company may redeem the 2024 Notes, in whole or in part, at any time or from time to time on or after September 15, 2020, at specified redemption prices, plus accrued and unpaid interest, if any, to the redemption date. At any time or from time to time prior to September 15, 2020, the Company may redeem the 2024 Notes, in whole or in part, at a redemption price equal to 100% of their principal amount plus a make whole premium, together with accrued and unpaid interest, if any, to the redemption date. In addition, the Company may redeem up to 40% of the aggregate principal amount of the outstanding 2024 Notes prior to September 15, 2020, with the net cash proceeds from certain equity offerings at a redemption price equal to 106.250% of their principal amount, together with accrued and unpaid interest, if any, to the redemption date.

If the Company experiences specific kinds of changes of control, the Company is required to offer to purchase all of the 2024 Notes at a purchase price of 101% of their principal amount, plus accrued and unpaid interest, if any, to the date of purchase.

The 2024 Notes were issued pursuant to an indenture dated as of September 23, 2019 (the “Indenture”). The Indenture contains covenants that, among other things, limit the ability of the Company and its restricted subsidiaries to: (i) incur additional indebtedness; (ii) pay dividends or make other distributions; (iii) make other restricted payments and investments; (iv) create liens; (v) incur restrictions on the ability of restricted subsidiaries to pay dividends or make certain other payments; (vi) sell assets, including capital stock of restricted subsidiaries; (vii) enter into sale and leaseback transactions; (viii) merge or consolidate with other entities; and (ix) enter into transactions with affiliates.

Senior Notes due 2022

On June 3, 2014, the Company issued $300,000 principal amount of 5.25% Senior Notes due June 1, 2022 (the "2022 Notes"). The 2022 Notes were sold at 100% of principal amount and have an effective interest yield of 5.25%. Interest  is payable semiannually in cash in arrears on June 1 and December 1 of each year, commencing on December 1, 2014. In connection with the issuance of the 2022 Notes, the Company incurred approximately $4,990 of costs, which were deferred and are being amortized on the effective interest method over the term of the 2022 Notes.

The 2022 Notes are the Company's senior unsecured obligations and rank equally in right of payment with all of its other existing and future senior unsecured indebtedness and senior in right of payment to all of its existing and future subordinated indebtedness. The 2022 Notes are guaranteed on a full, joint and several basis by each of the Guarantor Subsidiaries.

The Company is obligated to offer to repurchase the 2022 Notes at a price of (i)  101% of their principal amount plus accrued and unpaid interest, if any, as a result of certain change-of-control events and (ii)  100% of their principal amount plus accrued and unpaid interest, if any, in the event of certain asset sales. These restrictions and prohibitions are subject to certain qualifications and exceptions.  In the year ended March 31, 2021, the Company extinguished $63,529 of the principle balance owed under the 2022 Notes through cash payments.

The 2022 Indenture contains covenants that, among other things, limit the Company's ability and the ability of any of the Guarantor Subsidiaries to (i) grant liens on its assets, (ii) make dividend payments, other distributions or other restricted payments, (iii) incur restrictions on the ability of the Guarantor Subsidiaries to pay dividends or make other payments, (iv) enter into sale and leaseback transactions, (v) merge, consolidate, transfer or dispose of substantially all of their assets, (vi) incur additional indebtedness, (vii) use the proceeds from sales of assets, including capital stock of restricted subsidiaries, and (viii) enter into transactions with affiliates.

Senior Notes Due 2025

On August 17, 2017, the Company issued $500,000 principal amount of 7.75% Senior Notes due August 15, 2025 (the "2025 Notes"). The 2025 Notes were sold at 100% of principal amount and have an effective interest yield of 7.75%. Interest is payable semiannually in cash in arrears on February 15 and August 15 of each year, commencing on February 15, 2018. In connection with the issuance of the 2025 Notes, the Company incurred approximately $8,779 of costs, which were deferred and are being amortized on the effective interest method over the term of the 2025 Notes.

The 2025 Notes are the Company's senior unsecured obligations and rank equally in right of payment with all of its other existing and future senior unsecured indebtedness and senior in right of payment to all of its existing and future subordinated indebtedness. The 2025 Notes are guaranteed on a full, joint and several basis by each of the Guarantor Subsidiaries.

The Company may redeem some or all of the 2025 Notes prior to August 15, 2020, by paying a "make-whole" premium. The Company may redeem some or all of the 2025 Notes on or after August 15, 2020, at specified redemption prices. In addition, prior to August 15, 2020, the Company may redeem up to 35% of the 2025 Notes with the net proceeds of certain equity offerings at a redemption price equal to 107.75% of the aggregate principal amount plus accrued and unpaid interest, if any, subject to certain limitations set forth in the indenture governing the 2025 Notes (the "2025 Indenture").

The Company is obligated to offer to repurchase the 2025 Notes at a price of (i)  101% of their principal amount plus accrued and unpaid interest, if any, as a result of certain change-of-control events and (ii)  100% of their principal amount plus accrued and unpaid interest, if any, in the event of certain asset sales. These restrictions and prohibitions are subject to certain qualifications and exceptions.

The 2025 Indenture contains covenants that, among other things, limit the Company's ability and the ability of any of the guarantor subsidiaries to (i) grant liens on its assets, (ii) make dividend payments, other distributions or other restricted payments, (iii) incur restrictions on the ability of the Guarantor Subsidiaries to pay dividends or make other payments, (iv) enter into sale and leaseback transactions, (v) merge, consolidate, transfer or dispose of substantially all of their assets, (vi) incur additional indebtedness, (vii) use the proceeds from sales of assets, including capital stock of restricted subsidiaries, and (viii) enter into transactions with affiliates.

Financial Instruments Not Recorded at Fair Value

Carrying amounts and the related estimated fair values of the Company's long-term debt not recorded at fair value in the accompanying consolidated financial statements are as follows:

March 31, 2021				March 31, 2020
Carrying Value		Fair Value		Carrying Value		Fair Value
$	1,957,543	$	2,085,204	$	1,807,507	$	1,559,455

The fair value of the long-term debt was calculated based on either interest rates available for debt with terms and maturities similar to the Company's existing debt arrangements or broker quotes on its existing debt (Level 2 inputs).

Interest paid on indebtedness during the fiscal years ended March 31, 2021, 2020, and 2019, amounted to $116,515, $99,438 and $99,981, respectively.

As of March 31, 2021, the maturities of long-term debt are as follows: 2022 — $5,972; 2023 — $239,883; 2024 — $2,790; 2025 — $1,226,364; 2026 — $500,781; and thereafter— $6,531 through 2032.

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Other Noncurrent Liabilities

12 Months Ended

Mar. 31, 2021

Other Liabilities Noncurrent [Abstract]

Other Noncurrent Liabilities

11.    OTHER NONCURRENT LIABILITIES

Other noncurrent liabilities are composed of the following items:

	March 31,
	2021		2020
Acquired contract liabilities, net	$	43,888	$	92,962
Accrued warranties		9,519		31,036
Accrued workers' compensation		11,226		13,603
Noncurrent contract liabilities		100,737		91,265
Operating lease liabilities		26,060		54,687
Environmental contingencies		9,185		18,060
Income tax reserves		300		594
All other		6,463		3,962
Total other noncurrent liabilities	$	207,378	$	306,169

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Income Taxes

12 Months Ended

Mar. 31, 2021

Income Tax Disclosure [Abstract]

Income Taxes

12.    INCOME TAXES

The components of loss from continuing operations before income taxes are as follows:

	Year ended March 31,
	2021			2020			2019
Foreign	$	(1,518	)	$	33,399		$	(18,336	)
Domestic		(446,511	)		(57,034	)		(314,236	)
	$	(448,029	)	$	(23,635	)	$	(332,572	)

The components of income tax (benefit) expense are as follows:

	Year ended March 31,
	2021			2020			2019
Current:
Federal	$	—		$	(654	)	$	(1,253	)
State		(315	)		27			431
Foreign		3,372			3,602			3,335
		3,057			2,975			2,513
Deferred:
Federal		—			2,748			(9,076	)
State		—			73			1,593
Foreign		(176	)		2			(456	)
		(176	)		2,823			(7,939	)
	$	2,881		$	5,798		$	(5,426	)

A reconciliation of the statutory federal income tax rate to the effective tax rate is as follows:

	Year ended March 31,
	2021			2020			2019
Statutory federal income tax rate		21.0	%		21.0	%		21.0	%
State and local income taxes, net of federal tax benefit		2.7			(12.1	)		4.6
Goodwill impairment		—			(37.4	)		—
Disposition of business		—			—			3.2
Miscellaneous permanent items and nondeductible accruals		(0.7	)		3.9			(1.2	)
Research and development tax credit		0.7			30.4			3.3
Foreign tax credits		(0.3	)		(24.1	)		(0.7	)
Valuation allowance		(25.5	)		29.3			(28.6	)
Tax reform and CARES Act		—			(12.3	)		0.4
Global Intangible Low-Taxed Income		—			(20.4	)		(1.3	)
Other (including foreign rate differential and FIN 48)		1.4			(2.8	)		0.9
Effective income tax rate		(0.7	)%		(24.5	)%		1.6	%

The components of deferred tax assets and liabilities are as follows:

	March 31,
	2021			2020
Deferred tax assets:
Net operating loss and other credit carryforwards	$	345,071		$	318,341
Inventory		21,484			17,521
Accruals and reserves		34,379			40,492
Interest carryforward		62,893			38,383
Pension and other postretirement benefits		89,952			152,048
Lease right-of-use assets		6,890			11,495
Prepaid expenses and other		—			241
Acquired contract liabilities, net		7,504			21,771
		568,173			600,292
Valuation allowance		(512,554	)		(438,667	)
Net deferred tax assets		55,619			161,625
Deferred tax liabilities:
Deferred revenue		22,342			38,458
Property and equipment		12,581			34,939
Goodwill and other intangible assets		21,701			80,740
Lease liabilities		5,848			14,928
Prepaid expenses and other		588			—
		63,060			169,065
Net deferred tax liabilities	$	7,441		$	7,440

The Company follows ASC 740, Income Taxes, which prescribes a recognition threshold and measurement attribute criteria for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return, as well as guidance on derecognition, classification, interest and penalties, disclosure and transition.  The Company's policy is to release the tax effects from accumulated other comprehensive income when all of the related assets or liabilities that gave rise to the accumulated other comprehensive income have been derecognized. The Company has elected to treat global intangible low-taxed income (“GILTI”) as a period expense.

A valuation allowance, if needed, reduces deferred tax assets to the amount expected to be realized. When determining the amount of net deferred tax assets that are more likely than not to be realized, the Company assesses all available positive and negative evidence. This evidence includes, but is not limited to, prior earnings history, expected future earnings, carry-back and carry-forward periods and the feasibility of ongoing tax strategies that could potentially enhance the likelihood of the realization of a deferred tax asset. The weight given to the positive and negative evidence is commensurate with the extent the evidence may be objectively verified. As such, it is generally difficult for positive evidence regarding projected future taxable income exclusive of reversing taxable temporary differences to outweigh objective negative evidence of recent financial reporting losses.

Based on these criteria and the relative weighting of both the positive and negative evidence available, and in particular the activity surrounding the Company's prior earnings history, including the forward losses and intangible impairments previously recognized, management determined that it was necessary to establish a valuation allowance against principally all of its net deferred tax assets. Given the objective verifiable negative evidence of a three-year cumulative loss and the weighting of all available positive evidence, the Company excluded projected taxable income (aside from reversing taxable temporary differences) from the assessment of income that could be used as a source of taxable income to realize the deferred tax assets.

During fiscal year 2021, the Company adjusted the valuation allowance against the consolidated net deferred tax asset by $73,887 primarily due to an increase in the net operating loss and changes to temporary differences related to the impairment of long-lived intangible assets, interest disallowance, and pension and other postretirement benefit plans. As of March 31, 2021, management determined that it was necessary to maintain a valuation allowance against principally all of its net deferred tax assets.

As of March 31, 2021, the Company has net operating loss carryforwards of $659,278, $1,427,890, and $140,839 for U.S. federal, state, and foreign jurisdictions, respectively.

The effective income tax rate for the fiscal year ended March 31, 2021, was (0.7)% as compared with (24.5)% for the fiscal year ended March 31, 2020. The effective income tax rate for the fiscal year ended March 31, 2021, included the benefit of the R&D tax credit of $3,076, the benefit of the foreign tax rate differences of $1,244, and the change in the valuation allowance of $114,283. Due to the current year pretax loss, the effective tax rate drivers on a percentage basis are amplified. Accordingly, a year-over-year comparison of the effective tax rate may not be indicative of changes in the Company's tax position.

The Company has been granted income tax holiday as an incentive to attract foreign investment by the Government of Thailand. The tax holidays expire in various years through 2026. The Company does not have any other tax holidays in the jurisdictions in which it operates. The income tax benefit attributable to the tax status of our subsidiaries in Thailand was approximately $0 or $0.00 per diluted share in fiscal 2021, $1,932 or $0.04 per diluted share in fiscal 2020 and $2,160 or $0.04 per diluted share in fiscal 2019.

At March 31, 2021, cumulative undistributed earnings of foreign subsidiaries, for which no U.S. income or foreign withholding taxes have been recorded is $162,467. As the Company currently intends to indefinitely reinvest all such earnings, no provision has been made for income taxes that may become payable upon distribution of such earnings, and it is not practicable to determine the amount of the related unrecognized deferred income tax liability.

The Company has classified uncertain tax positions as noncurrent income tax liabilities unless expected to be paid in one year.

As of March 31, 2021 and 2020, the total amount of unrecognized tax benefits was $11,536 and $18,965, respectively, all of which would impact the effective rate, if recognized. The Company anticipates that total unrecognized tax benefits may be reduced by zero in the next 12 months. With a few exceptions, the Company is no longer subject to U.S. federal, state, or local income tax examinations, or foreign income tax examinations by tax authorities, for fiscal years ended before March 31, 2014.

As of March 31, 2021, the Company is not subject to any income tax examinations. The Company has filed appeals in a prior state examination related to fiscal years ended March 31, 1999 through March 31, 2005. The Company believes appropriate provisions for all outstanding issues have been made for all jurisdictions and all open years.

A reconciliation of the liability for uncertain tax positions, which are included in deferred taxes for the fiscal years ended March 31, 2021 and 2020, follows:

	Year ended March 31,
	2021			2020			2019
Beginning balance	$	19,127		$	19,373		$	11,759
Adjustments for tax positions related to the current year		311			1,057			7,364
Adjustments for tax positions of prior years		(7,688	)		(1,303	)		250
Ending balance	$	11,750		$	19,127		$	19,373

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Stockholders' Deficit

12 Months Ended

Mar. 31, 2021

Equity [Abstract]

Stockholders' Deficit

13. STOCKHOLDERS' DEFICIT

On February 4, 2021, the Company implemented a new “at the market” stock issuance program by entering into an Equity Distribution Agreement (the “Equity Distribution Agreement”) with Citigroup Global Markets Inc. (the “Manager”). Under the terms of the Equity Distribution Agreement, the Company may from time to time to or through the Manager, acting as agent and/or principal, offer and sell shares of its common stock (the “Shares”), par value $0.001 per share (“Common Stock”) having a gross sales price of up to $150,000.  From the date the program was implemented through March 31, 2021, the Company completed the program, selling 9,178,752 shares with a gross sales price of $150,000 for total proceeds net of stock issuance costs of $145,383.

In March 2019, the Company adopted a tax benefits preservation plan (the "Plan") designed to preserve Triumph’s ability to utilize its net operating loss carryforwards and other tax attributes (collectively, "Tax Benefits"). The Plan is similar to plans adopted by other public companies with significant Tax Benefits. The Company obtained stockholder approval for the Plan as well as an amendment to the Company’s amended and restated certificate of incorporation that permitted the issuance of Rights (as defined below) related to preferred stock, at its annual meeting of stockholders in 2019.  

Under the Plan, Triumph declared a dividend distribution of one right (a “Right”) for each share of its common stock outstanding at the close of business on March 25, 2019. The Rights trade with Triumph’s common shares and will expire on March 13, 2022. The Rights also will expire: (i) if the Rights are redeemed or exchanged as provided in the Plan; (ii) if the Board determines that the Plan is no longer necessary or desirable for the preservation of the Tax Benefits; or (iii) if the Board determines that no Tax Benefits, once realized, as applicable, may be carried forward (in which case, the Rights will expire on the first date of the relevant taxable year for which such determination is made).

Pursuant to the Plan, if a stockholder (or group) becomes a 5% stockholder without meeting certain customary exceptions, the Rights become exercisable and entitle stockholders (other than the 5% stockholder or group causing the rights to become exercisable) to purchase additional shares of Triumph at a significant discount, resulting in significant dilution in the economic interest and voting power of the 5% stockholder or group causing the Rights to become exercisable. Stockholders owning five percent or more of Triumph’s outstanding shares at the time the Plan was adopted were grandfathered and will only cause the Rights to distribute and become exercisable if they acquire an additional one percent or more of Triumph’s outstanding shares. Under the Plan, the Board has the ability to determine in its sole discretion that any person shall not be deemed an acquiring person and therefore that the Rights shall not become exercisable if such person becomes a 5% stockholder. The adoption of the Plan and the dividend distribution did not have an impact on the Company’s consolidated financial statements.

In 2014, the Company's Board of Directors authorized an increase in the Company's existing stock repurchase program by up to 5,000,000 shares of its common stock in addition to the 500,800 shares authorized under prior authorizations. As of March 31, 2021, the Company remains able to purchase an additional 2,277,789 shares. Repurchases may be made from time to time in open market transactions, block purchases, privately negotiated transactions or otherwise at prevailing prices. No time limit has been set for completion of the program.

The holders of the common stock are entitled to one vote per share on all matters to be voted upon by the stockholders of Triumph.

The Company has preferred stock of $0.01 par value, 250,000 shares authorized. At March 31, 2021 and 2020, zero shares of preferred stock were outstanding.

Accumulated Other Comprehensive Loss

Changes in accumulated other comprehensive loss ("AOCI") by component for the years ended March 31, 2021 and 2020, were as follows:

	Currency Translation Adjustment			Unrealized Gains and Losses on Derivative Instruments			Defined Benefit Pension Plans and Other Postretirement Benefits				Total (1)
March 31, 2019	$	(48,606	)	$	(1,130	)	$	(466,275	)		$	(516,011	)
AOCI before reclassifications		(13,439	)		(1,611	)		(208,835	)			(223,885	)
Amounts reclassified from AOCI		—			(1,562	)		(4,990	)	(2)		(6,552	)
Net current period OCI		(13,439	)		(3,173	)		(213,825	)			(230,437	)
March 31, 2020		(62,045	)		(4,303	)		(680,100	)			(746,448	)
AOCI before reclassifications		19,884			5,891			168,701				194,476
Amounts reclassified from AOCI		—			(573	)		22,353		(2)		21,780
Net current period OCI		19,884			5,318			191,054				216,256
March 31, 2021	$	(42,161	)	$	1,015		$	(489,046	)		$	(530,192	)

(1) Net of tax.

(2) Includes amortization of actuarial losses and recognized prior service (credits) costs, which are included in the net periodic pension cost

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Loss per Share

12 Months Ended

Mar. 31, 2021

Earnings Per Share [Abstract]

Loss per Share

14.    LOSS PER SHARE

The following is a reconciliation between the weighted average common shares outstanding used in the calculation of basic and diluted loss per share:

	Year ended March 31,
	2021		2020		2019
	(thousands)
Weighted average common shares outstanding—basic		52,739		50,494		49,698
Net effect of dilutive stock options and non-vested stock(1)		—		—		—
Weighted average common shares outstanding—diluted		52,739		50,494		49,698

(1) For the fiscal years ended March 31, 2021, 2020, and 2019, the shares that could potentially dilute earnings per share in the future but were not included in diluted weighted average common shares outstanding because to do so would have been anti-dilutive were immaterial.

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Employee Benefit Plans

12 Months Ended

Mar. 31, 2021

Compensation And Retirement Disclosure [Abstract]

Employee Benefit Plans

15.    EMPLOYEE BENEFIT PLANS

Defined Contribution Pension Plan

The Company sponsors a defined contribution 401(k) plan, under which salaried and certain hourly employees may defer a portion of their compensation. Eligible participants may contribute to the plan up to the allowable amount as determined by the plan of their regular compensation before taxes. The Company generally matches contributions up to 75% of the first 6% of compensation contributed by the participant. All contributions and Company matches are invested at the direction of the employee in one or more investment options offered under the plan. Company matching contributions vest immediately and aggregated to $1,665, $14,763, and $13,685 for the fiscal years ended March 31, 2021, 2020, and 2019, respectively.  Effective April 1, 2020, the Company suspended its 401(k) matching contribution for non-represented employees and some represented employees for fiscal year 2021 and has continued the suspension for fiscal year 2022.

Defined Benefit Pension and Other Postretirement Benefit Plans

The Company sponsors several defined benefit pension plans covering some of its employees. Most employees are ineligible to participate in the plans or have ceased to accrue additional benefits under the plans. Benefits under the defined benefit plans are based on years of service and, for most non-represented employees, on average compensation for certain years. It is the Company's policy to fund at least the minimum amount required for all qualified plans, using actuarial cost methods and assumptions acceptable under applicable government regulations, by making payments into a trust separate from us.

In addition to the defined benefit pension plans, the Company provides certain health care benefits for eligible retired employees. Such benefits are unfunded as of March 31, 2021. Employees achieve eligibility to participate in these contributory plans upon retirement from active service if they meet specified age and years of service requirements. Current plan documents reserve the right to amend or terminate the plans at any time, subject to applicable collective bargaining requirements for represented employees.  During the year ended March 31, 2020, the Company reached agreement with two unions whose members make up the vast majority of participants eligible for retiree healthcare benefits.  Under the terms of these agreements, the right to benefits under the current program ceased for all represented participants (actively employed and retired) by April 1, 2020.  Company-funded notional health reimbursement accounts were provided to retired participants (and their dependents) whose eligibility for current benefits ended under the new agreement. The average size of each account is immaterial and the Company anticipates that these accounts will be fully drawn down in one year.  These changes served to reduce the Company’s other postretirement benefit (“OPEB”) liability by approximately $99,000.    

In accordance with ASC 715, the Company has recognized the funded status of the benefit obligation as of March 31, 2021 and 2020, on the accompanying consolidated balance sheets. The funded status is measured as the difference between the fair value of the plans' assets and the PBO or accumulated postretirement benefit obligation of the plan. The majority of the plan assets are publicly traded investments which were valued based on the market price as of the measurement date. Investments that are not publicly traded were valued based on the estimated fair value of those investments based on the Company’s evaluation of data from fund managers and comparable market data.

The following table sets forth the Company's consolidated defined benefit pension plans for its union and non-union employees as of March 31, 2021 and 2020, and the amounts recorded on the consolidated balance sheets at March 31, 2021 and 2020. Company contributions include amounts contributed directly to plan assets and indirectly as benefits paid from the Company's assets. Benefit payments reflect the total benefits paid from the plans and the Company's assets. Information on the plans includes both the domestic qualified and nonqualified plans and the foreign qualified plans.

	Pension Benefits						Other Postretirement Benefits
	Year ended March 31,						Year ended March 31,
	2021			2020			2021			2020
Change in projected benefit obligations
Projected benefit obligation at beginning of year	$	2,254,985		$	2,234,734		$	7,150		$	109,455
Service cost		1,537			2,336			—			62
Interest cost		64,599			68,446			112			1,559
Actuarial loss (gain)		83,263			138,652			(156	)		3,472
Plan amendments		—			4,898			—			(99,080	)
Curtailments		—			22,732			—			—
Divestitures		—			(55,354	)		—			—
Participant contributions		164			204			—			252
Settlements		—			(14,579	)		—			—
Special termination benefits		—			11,642			—			—
Benefits paid		(179,956	)		(156,084	)		(2,182	)		(8,570	)
Currency translation adjustment		5,656			(2,642	)		—			—
Projected benefit obligation at end of year	$	2,230,248		$	2,254,985		$	4,924		$	7,150
Accumulated benefit obligation at end of year	$	2,228,830		$	2,252,126		$	4,924		$	7,150
Assumptions used to determine benefit    obligations at end of year
Discount rate	2.05 - 3.17%			2.47 - 3.32%				2.51	%		3.00	%
Rate of compensation increase	2.80 - 3.50%			3.50 - 4.50%			N/A			N/A

	Pension Benefits						Other Postretirement Benefits
	Year ended March 31,						Year ended March 31,
	2021			2020			2021			2020
Change in fair value of plan assets
Fair value of plan assets at beginning of year	$	1,598,045		$	1,796,111		$	—		$	—
Actual return on plan assets		388,392			(20,869	)		—			—
Settlements		—			(14,579	)		—			—
Participant contributions		164			204			—			252
Divestitures		—			(55,354	)		—			—
Company contributions		41,201			51,372			2,182			8,319
Benefits paid		(179,956	)		(156,084	)		(2,182	)		(8,571	)
Currency translation adjustment		6,117			(2,756	)		—			—
Fair value of plan assets at end of year	$	1,853,963		$	1,598,045		$	—		$	—
Funded status (underfunded)
Funded status	$	(376,285	)	$	(656,940	)	$	(4,924	)	$	(7,150	)
Reconciliation of amounts recognized on the    consolidated balance sheets
Pension asset—noncurrent	$	7,515		$	1,503		$	—		$	—
Accrued benefit liability—current		(1,097	)		(753	)		(3,372	)		(4,775	)
Accrued benefit liability—noncurrent		(382,703	)		(657,690	)		(1,552	)		(2,375	)
Net amount recognized	$	(376,285	)	$	(656,940	)	$	(4,924	)	$	(7,150	)
Reconciliation of amounts recognized in    accumulated other comprehensive income
Prior service credits	$	4,621		$	5,595		$	(54,109	)	$	(59,214	)
Actuarial losses (gains)		755,234			953,913			(53,542	)		(58,151	)
Income tax (benefits) expenses related to above    items		(204,594	)		(204,594	)		42,016			42,016
Unamortized benefit plan costs (gains)	$	555,261		$	754,914		$	(65,635	)	$	(75,349	)

The components of net periodic benefit cost for fiscal years ended March 31, 2021, 2020, and 2019, are as follows:

	Pension Benefits									Other Postretirement Benefits
	Year Ended March 31,									Year Ended March 31,
	2021			2020			2019			2021			2020			2019
Components of net periodic pension    cost
Service cost	$	1,537		$	2,336		$	3,292		$	0		$	62		$	227
Interest cost		64,599			68,446			79,446			112			1,559			4,039
Expected return on plan assets		(136,581	)		(141,972	)		(145,361	)		—			—			—
Amortization of prior service credit cost		974			(874	)		(3,619	)		(5,105	)		(4,872	)		(4,655	)
Amortization of net loss		31,248			28,288			20,151			(4,766	)		(6,361	)		(9,851	)
Curtailment loss (gain)		—			23,690			—			—			(49,491	)		—
Settlements		—			29,313			—			—			—			—
Special termination benefits		—			11,642			4,032			—			—			—
Total net periodic benefit (income)    expense	$	(38,223	)	$	20,869		$	(42,059	)	$	(9,759	)	$	(59,103	)	$	(10,240	)
Assumptions used to determine net    periodic pension cost
Discount rate	2.47 - 3.32%			2.54 - 3.88%			2.65 - 4.01%				3.00	%	2.68 - 3.77%				3.93	%
Expected long-term rate of return on plan assets	5.00 - 8.00%			5.00 - 8.00%			5.00 - 8.00%			N/A			N/A			N/A
Rate of compensation increase	3.50 - 4.50%			3.50 - 4.50%			3.50 - 4.50%			N/A			N/A			N/A

The discount rate is determined annually as of each measurement date, based on a review of yield rates associated with long-term, high-quality corporate bonds. At the end of each year, the discount rate is primarily determined using the results of bond yield curve models based on a portfolio of high-quality bonds matching notional cash inflows with the expected benefit payments for each significant benefit plan.

The expected return on plan assets is determined based on a MRVA, which is a smoothed asset value.  As disclosed in Note 1, the Company changed its method of accounting or the determination of the MRVA for its fixed income securities within the qualified U.S. defined benefit plan.  For these fixed income securities, the MRVA is determined using the fair value of the fixed income assets.  For all other classes of pension assets, the MRVA is calculated by recognizing investment performance that is different from that expected on a straight-line basis over five years.  Actuarial gains and losses are amortized over the average remaining life expectancy of inactive participants for plans that are predominantly inactive and over the expected future service for active participants for other plans, but only to the extent unrecognized gains or losses exceed a corridor equal to 10% of the greater of the projected benefit obligation or market-related value of assets.

The Company estimates the service and interest cost of its pension and OPEB plans by using the specific spot rates derived from the yield curve used to discount the cash flows reflected in the measurement of the benefit obligation.  The Company believes this approach provides a precise measurement of service and interest costs due to the correlation between projected benefit cash flows to the corresponding spot yield curve rates. The Company amortizes actuarial gains and losses over the average life expectancy of inactive plan participants because almost all plan participants are inactive.

During the fiscal year ended March 31, 2021, the Society of Actuaries released a new and updated mortality projection scale.  The Company has reflected this new release in the measurement of its U.S. pension and OPEB plans as of March 31, 2021. This change resulted in a decrease in the benefit obligation.

The projected benefit obligation assumptions impacting net actuarial loss (gain) consist of changes in discount and mortality rates, as well as changes in plan experience. A significant component of the decrease in the pension plans’ actuarial losses in fiscal 2021 was the change in discount rates.

The Company periodically experiences events or makes changes to its benefit plans that result in curtailment or special charges. Curtailments are recognized when events occur that significantly reduce the expected years of future service of present employees or eliminates the benefits for a significant number of employees for some or all of their future service.

Curtailment losses are recognized when it is probable the curtailment will occur and the effects are reasonably estimable. Curtailment gains are recognized when the related employees are terminated or a plan amendment is adopted, whichever is applicable.

As required under ASC 715, the Company remeasures plan assets and obligations during an interim period whenever a significant event occurs that results in a material change in the net periodic pension cost. The determination of significance is based on judgment and consideration of events and circumstances impacting the pension costs.

The following summarizes the key events whose effects on net periodic benefit cost and obligations are included in the tables above:

• As disclosed in Note 3, in March 2020, the Company transferred approximately $55,354 of pension assets and liabilities to the buyer of its Nashville manufacturing operations.  The divestiture transaction and resulting transfer resulted in a settlement charge of approximately $28,452 and a curtailment charge of approximately $214.  These amounts are included in non-service defined benefit income on the consolidated statements of operations for the year ended March 31, 2020.

• In September 2019, the Company and the union which represents a portion of the workforce at the Company’s Grand Prairie, TX, facility, in conjunction with an announced shutdown of this facility, agreed to changes to the pension and retiree welfare plans for represented plan members. Effective April 1, 2020, all current retiree welfare benefits for the union-represented retirees and active employees will cease. A new benefit consisting of a one-time credit to Heath Reimbursement Accounts for the current retirees and their covered dependents will be provided. The Company and the union also agreed to increased pension benefits which are effective with the ratification of the agreement. This agreement resulted in a decrease of the projected other post-employment benefits ("OPEB") benefit obligation of $61,766. It also resulted in a one-time OPEB curtailment gain of $41,128. As a result of the planned shutdown, subsidized early retirement provisions within the retirement plan and the agreed-to pension benefit increases, a pension curtailment loss of $23,476 was recognized, along with a one-time charge of $11,642 for special termination benefits. The net curtailment gain and charge for special termination benefits are included in non-service defined benefit income on the consolidated statements of operations for the year ended March 31, 2020.

• In August 2019, the Company and the union which represents a portion of the workforce at the Company’s Nashville, TN, facility agreed to changes to the pension and retiree welfare plans for represented plan members.  Effective January 1, 2020, all current retiree welfare benefits for the union-represented retirees and active employees will cease. A new benefit consisting of a one-time credit to Heath Reimbursement Accounts for the current retirees and their covered dependents will be provided. The Company and the union also agreed to increased pension benefits which are effective on February 1, 2020, and the union also agreed to increased pension benefits which are effective with the ratification of the agreement. This agreement resulted in a decrease of the projected OPEB benefit obligation of $34,731. It also resulted in a one-time OPEB curtailment gain of $8,363. The agreed-to pension benefit increases resulted in an increase of the projected pension benefit obligation of $4,898. The curtailment gain is included in non-service defined benefit income on the consolidated statements of operations for the year ended March 31, 2020.

• In February 2019, the Company transferred its Global 7500 wing manufacturing operations to Bombardier. In conjunction with this transaction, the Company provided special termination pension benefits to certain pension participants who transferred employment from Triumph to Bombardier. This change resulted in the recognition of a charge of $4,032 for special termination benefits. The special termination benefits charge is included in non-service defined benefit income on the consolidated statements of operations for the year ended March 31, 2019.

Expected Pension Benefit Payments

The total estimated future benefit payments for the pension plans are expected to be paid from the plan assets and company funds. The OPEB payments reflect the Company's portion of the funding. Estimated future benefit payments from plan assets and Company funds for the next ten years are as follows:

Year	Pension Benefits		Other Postretirement Benefits*
2022	$	192,745	$	3,375
2023		163,947		169
2024		163,676		161
2025		156,660		153
2026		154,324		143
2027 - 2031		705,477		585

Plan Assets, Investment Policy and Strategy

The table below sets forth the Company's target asset allocation for fiscal 2021 and the actual asset allocations at March 31, 2021 and 2020.

		Actual Allocation
	Target Allocation	March 31,
Asset Category	Fiscal 2021	2021			2020
Equity securities	40% - 50%		50	%		42	%
Fixed income securities	40% - 50%		39			50
Alternative investment funds	0% - 10%		5			6
Other	0% - 5%		6			2
Total			100	%		100	%

Pension plan assets are invested in various asset classes that are expected to produce a sufficient level of diversification and investment return over the long-term. The investment goals are to exceed the assumed actuarial rate of return over the long-term within reasonable and prudent levels of risks and to meet future obligations.

Asset/liability studies are conducted on a regular basis to provide guidance in setting investment goals for the pension portfolio and its asset allocation. The asset allocation aims to prudently achieve a strong, risk-adjusted return while seeking to minimize funding level volatility and improve the funded status of the plans. The pension plans currently employ a liability-driven investment ("LDI") approach, where assets and liabilities move in the same direction. The goal is to limit the volatility of the funding status and cover part, but not all, of the changes in liabilities. Most of the liabilities' changes are due to interest rate movements.

To balance expected risk and return, allocation targets are established and monitored against acceptable ranges. All investment policies and procedures are designed to ensure that the plans' investments are in compliance with the Employee Retirement Income Security Act of 1974 ("ERISA"). Guidelines are established defining permitted investments within each asset class. Each investment manager has contractual guidelines to ensure that investments are made within the parameters of their asset class or in

the case of multi-asset class managers, the parameters of their multi-asset class strategy. Certain investments are not permitted at any time, including investment directly in employer securities and uncovered short sales.

The tables below provide the fair values of the Company's plan assets at March 31, 2021 and 2020, by asset category. The table also identifies the level of inputs used to determine the fair value of assets in each category (refer to Note 2 for definition of levels).

	March 31, 2021
		Level 1		Level 2		Level 3		Total
Assets
Cash and cash equivalents		$	42,003	$	—	$	—	$	42,003
Equity securities
International			164,298		—		—		164,298
U.S. equity			7,410		—		—		7,410
U.S. commingled fund			537,813		—		—		537,813
International commingled fund			42,944		—		—		42,944
Fixed income securities
Corporate bonds			—		12,231		—		12,231
Government securities			—		103,853		—		103,853
U.S. commingled fund			509,760		—		—		509,760
Other
Insurance contracts			—		—		9,813		9,813
Total investment in securities—assets		$	1,304,228	$	116,084	$	9,813	$	1,430,125
U.S. equity commingled fund									17,289
International equity commingled fund									158,447
U.S. fixed income commingled fund									59,203
International fixed income commingled fund									1,599
Government securities commingled fund									24,384
Private equity and infrastructure									95,880
Other									1,549
Total investment measured at NAV as a    practical expedient								$	358,351
Receivables									67,378
Payables									(1,892	)
Total plan assets								$	1,853,962

	March 31, 2020
	Level 1		Level 2		Level 3		Total
Assets
Cash and cash equivalents	$	35,110	$	—	$	—	$	35,110
Equity securities
International		155,389		—		—		155,389
U.S. equity		2		—		—		2
U.S. commingled fund		400,131		—		—		400,131
International commingled fund		34,014		—		—		34,014
Fixed income securities
Corporate bonds		—		23,672		—		23,672
Government securities		—		93,677		—		93,677
U.S. commingled fund		605,487		—		—		605,487
Other
Insurance contracts		—		—		910		910
Total investment in securities—assets	$	1,230,133	$	117,349	$	910	$	1,348,392
U.S. equity commingled fund								8,180
International equity commingled fund								67,101
U.S. fixed income commingled fund								73,838
International fixed income commingled fund								1,380
Government securities commingled fund								8,333
Private equity and infrastructure								89,797
Other								1,534
Total investment measured at NAV as a    practical expedient							$	250,163
Receivables								3,292
Payables								(3,802	)
Total plan assets							$	1,598,045

Cash equivalents and other short-term investments are primarily held in registered short-term investment vehicles which are valued using a market approach based on quoted market prices of similar instruments.

Public equity securities, including common stock, are primarily valued using a market approach based on the closing fair market prices of identical instruments in the principal market on which they are traded. Commingled funds that are open-ended mutual funds for which the fair value per share is determined and published by the respective mutual fund sponsor and is the basis for current observable transactions are categorized as Level 1 fair value measures.

Investments in commingled funds and private equity and infrastructure funds are carried at net asset value ("NAV") as a practical expedient to estimate fair value. The NAV is the total value of the fund divided by the number of shares outstanding. Adjustments to NAV, if any, are determined based on evaluation of data provided by fund managers, including valuation of the underlying investments derived using inputs such as cost, operating results, discounted future cash flows and market-based comparable data. In accordance with ASC 820-10, investments that are measured at NAV practical expedient are not classified in the fair value hierarchy; however, their fair value amounts are presented in these tables to permit reconciliation of the fair value hierarchy to the total plan assets disclosed in this footnote.

Corporate, government agency bonds and mortgage-backed securities are primarily valued using a market approach with inputs that include broker quotes, benchmark yields, base spreads and reported observable trades for identical or comparable instruments.

Other investments include private equity and infrastructure funds and insurance contracts. Investments in private equity and infrastructure funds are carried at estimated fair value based on NAV as a practical expedient and other appropriate adjustments to NAV as determined based on an evaluation of data provided by fund managers, including valuations of the underlying investments derived using inputs such as cost, operating results, discounted future cash flows, and market-based comparable data.

Assumptions and Sensitivities

The discount rate is determined as of each measurement date, based on a review of yield rates associated with long-term, high-quality corporate bonds. The calculation separately discounts benefit payments using the spot rates from a long-term, high-quality corporate bond yield curve.

The effect of a 25 basis-point change in discount rates as of March 31, 2021, is shown below:

		Pension Benefits			Other Postretirement Benefits
Increase of 25 basis points
Obligation	*	$	(52,031	)	$	(33	)
Net periodic expense			586			4
Decrease of 25 basis points
Obligation	*	$	54,288		$	34
Net periodic expense			(707	)		4

* Excludes impact to plan assets due to the LDI investment approach discussed above under "Plan Assets, Investment Policy and Strategy."

The long-term rate of return assumption represents the expected average rate of earnings on the funds invested to provide for the benefits included in the benefit obligations. The long-term rate of return assumption is determined based on a number of factors, including historical market index returns, the anticipated long-term asset allocation of the plans, historical plan return data, plan expenses and the potential to outperform market index returns. For fiscal 2022, the expected long-term rate of return is 5.00%- 8.00%.

Anticipated Contributions to Defined Benefit

In the year ended March 31, 2021, the Company contributed 2,849,002 shares of common stock to the separate pension plan trust with an aggregate contribution value of approximately $40,000 on the contribution date.  The Company does not expect to contribute to its qualified U.S. defined benefit pension plans during fiscal 2022.  No plan assets are expected to be returned to the Company in fiscal 2022.

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Stock Compensation Plans

12 Months Ended

Mar. 31, 2021

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock Compensation Plans

16.    STOCK COMPENSATION PLANS

The Company has stock incentive plans under which employees and non-employee directors may be granted equity awards in the form of stock options with an exercise price equal to the fair value of the Company’s stock on the grant date or in the form of restricted stock or restricted stock units that vest pursuant to service conditions and, in some cases, performance or market conditions.  The stock incentive and compensation plans under which outstanding equity awards have been granted to employees, officers and non-employee directors are the Triumph Group 2018 Equity Plan (the "2018 Plan"), the Triumph Group 2013 Equity and Cash Incentive Plan (the “2013 Plan”), the 2016 Directors’ Equity Compensation Plan, as amended (the “Directors’ Plan”), and the Amended and Restated Directors’ Stock Incentive Plan (the “Prior Directors’ Plan”). The Prior Directors’ Plan expired by its terms during fiscal 2017. The current stock incentive and compensation plans used for future awards are the 2013 Plan for employees, officers and consultants, the Directors’ Plan, and the 2018 Plan. The 2018 Plan, the 2013 Plan, the Directors’ Plan, and the Prior Directors’ Plan are collectively referred to in this note as the plans.

Management and the compensation committee have utilized restricted stock and restricted stock units as its primary form of share-based incentive compensation. Restricted stock and restricted stock units that vest solely pursuant to service conditions generally vest on a grade basis over a three year period and are subject to forfeiture should the grantee’s employment be terminated prior to an applicable vesting date.  Management and the compensation committee have also granted restricted stock and restricted stock units, referred to herein as performance restricted stock awards, that vest pursuant to a combination of service conditions as well as market and performance conditions.  Such awards generally vest on a cliff vesting basis at the end of a three year service period, subject to specific market or performance conditions.  The market and performance conditions may result in the awards vesting below target, including zero vesting awards if certain threshold vesting conditions are not met, up to 200% of the number of awards granted, if certain vesting conditions are exceeded.  .The share-based payment expense arising from restricted stock and restricted stock unit expense is included in capital in excess of par value. The fair value of restricted stock or restricted stock units awards subject only to service conditions or service and performance conditions is determined by the product of the number of shares granted and the grant date market price of the Company's common stock.  The fair value of restricted stock or restricted stock units awards that contain market conditions is determined by the product of the number of shares granted and the grant date fair value of such an award value using a Monte Carlo valuation methodology.  The fair value of share-based compensation granted to employees was $13,103, $13,249, and $15,911 during the fiscal years ended March 31, 2021, 2020, and 2019, respectively.   The fair value of restricted stock and restricted stock unit awards is expensed on a straight-line basis over the requisite service period which is typically the vesting period.  The Company recognized $12,701, $11,062 and $10,259 of share-based compensation expense during the fiscal years ended March 31, 2021, 2020, and 2019, respectively. The Company has classified share-based compensation within selling, general and administrative expenses to correspond with the same line item as the majority of the cash compensation paid to employees.    

At March 31, 2021 and 2020, 2,019,502 shares and 1,564,791 shares of common stock, respectively, were available for issuance under the plans. A summary of the status of the Company's non-vested shares/units of restricted stock and deferred stock units as of March 31, 2021, and changes during the fiscal year ended March 31, 2021, is presented below.

	Shares			Weighted- Average Grant Date Fair Value
Non-vested restricted awards and deferred stock units at March 31, 2020		1,159,630		$	24.40
Granted		1,154,181			11.35
Vested		(396,847	)		20.25
Forfeited		(218,205	)		17.58
Non-vested restricted awards and deferred stock units at March 31, 2021		1,698,759		$	15.46

The fair value of employee restricted stock which vested during fiscal 2021, 2020 and 2019 was $8,037, $7,052, and $7,031, respectively.  Upon the vesting of restricted stock units, the Company first transfers treasury stock, then will issue new shares.  Expected future compensation expense on restricted stock net of expected forfeitures, is approximately $8,376, which is expected to be recognized over the remaining weighted average vesting period of 1.5 years.

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Commitments and Contingencies

12 Months Ended

Mar. 31, 2021

Commitments And Contingencies [Abstract]

Commitments and Contingencies

17.    COMMITMENTS AND CONTINGENCIES

Certain of the Company's business operations and facilities are subject to a number of federal, state, local and foreign environmental laws and regulations. Former owners generally indemnify the Company for environmental liabilities related to the assets and businesses acquired which existed prior to the acquisition dates. In the opinion of management, there are no significant environmental contingent liabilities which would have a material effect on the financial condition or operating results of the Company which are not covered by such indemnification.  As the Company completes its restructuring plans as disclosed in Note 18, including the disposal of certain facilities, the Company may be exposed to additional costs such as environmental remediation obligations, lease termination costs, or supplier claims which may have a material effect on its financial position or results of operations when such matters arise and a reasonable estimate of the costs can be made.

The Company's risk related to pension projected obligations as of March 31, 2021, is significant. This amount is currently in excess of the related plan assets. Benefit plan assets are invested in a diversified portfolio of investments in both the equity and debt categories, as well as limited investments in real estate and other alternative investments. The market value of all of these investment categories may be adversely affected by external events and the movements and volatility in the financial markets, including such events as the current credit and real estate market conditions. Declines in the market values of the Company’s plan assets could expose the total asset balance to significant risk which may cause an increase to future funding requirements.

Some raw materials and operating supplies are subject to price and supply fluctuations caused by market dynamics. The Company's strategic sourcing initiatives seek to find ways of mitigating the inflationary pressures of the marketplace. In recent years, these inflationary pressures have affected the market for raw materials. However, the Company believes that raw material prices will remain stable through the remainder of fiscal 2022 and after that, experience increases that are in line with inflation. Additionally, the Company generally does not employ forward contracts or other financial instruments to hedge commodity price risk.

The Company's suppliers' failure to provide acceptable raw materials, components, kits and subassemblies would adversely affect production schedules and contract profitability. The Company maintains an extensive qualification and performance surveillance system to control risk associated with such supply base reliance. The Company is dependent on third parties for certain information technology services. To a lesser extent, the Company is also exposed to fluctuations in the prices of certain utilities and services, such as electricity, natural gas, chemical processing and freight. The Company utilizes a range of long-term agreements and strategic aggregated sourcing to optimize procurement expense and supply risk in these categories.

In the ordinary course of business, the Company is involved in disputes, claims and lawsuits with employees, suppliers and customers, as well as governmental and regulatory inquiries, that it deems to be immaterial. Some may involve claims or potential claims of substantial damages, fines, penalties or injunctive relief. While the Company cannot predict the outcome of any pending or future litigation or proceeding and no assurances can be given, the Company does not believe that any pending matter will have a material effect, individually or in the aggregate, on its financial position or results of operations.

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Restructuring Costs

12 Months Ended

Mar. 31, 2021

Restructuring And Related Activities [Abstract]

Restructuring Costs

18.    RESTRUCTURING COSTS

During the fiscal years ended March 31, 2017 and 2016, the Company committed to restructuring plans involving certain of its businesses, as well as the consolidation of certain of its facilities. With the exception of certain consolidations to be completed in future years, these plans were substantially complete as of March 31, 2020. During the year ended March 31, 2021, the Company incurred costs of $7,871, $36,879, and $8,474, within Systems & Support, Aerospace Structures, and its corporate headquarters, respectively, for total restructuring costs of $53,224 associated with new restructuring plans.  Of the restructuring costs within Aerospace Structures, approximately $17,737 pertained to postemployment benefits arising from reductions in force, $15,781 pertained to facility closures, and the remaining $2,937 pertained to third-party consulting and other costs.  The restructuring costs within Systems & Support and Corporate are primarily related to postemployment benefits arising from reductions in force and third-party consulting costs.  The majority of restructuring plans are complete and the related costs have been settled as of March 31, 2021, with the exception of consolidated postretirement benefits associated with reductions in force of approximately $19,260 included in accrued expenses on the accompanying consolidated balance sheet as of March 31, 2021.  

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Customer Concentration

12 Months Ended

Mar. 31, 2021

Customer Concentration [Abstract]

Customer Concentration

19.    CUSTOMER CONCENTRATION

Trade and other accounts receivable from Boeing represented approximately 23% and 21% of total accounts receivable as of March 31, 2021 and 2020, respectively. Trade and other accounts receivables from Bombardier represented approximately 1% and 16% of total accounts receivable as of March 31, 2021 and 2020, respectively, and include receivables from transition services. The Company had no other significant concentrations of credit risk.

Sales to Boeing for fiscal 2021 were $698,372, or 37% of net sales, of which $225,027 and $473,346 were from Systems & Support and Aerospace Structures, respectively. Sales to Boeing for fiscal 2020 were $983,763, or 34% of net sales, of which $254,660 and $729,103 were from Systems & Support and Aerospace Structures, respectively. Sales to Boeing for fiscal 2019 were $1,031,106, or 31% of net sales, of which $243,046 and $788,061 were from Systems & Support and Aerospace Structures, respectively.

Sales to Gulfstream for fiscal 2021 were less than 10% of net sales.   Sales to Gulfstream for fiscal 2020 were $337,173, or 12% of net sales, of which $3,250 and $333,924 were from Systems & Support and Aerospace Structures, respectively. Sales to Gulfstream for fiscal 2019 were $361,451, or 11% of net sales, of which $3,067 and $358,383 were from Systems & Support and Aerospace Structures, respectively.

No other single customer accounted for more than 10% of the Company's net sales; however, the loss of any significant customer, including Boeing and/or Gulfstream, could have a material adverse effect on the Company and its operating subsidiaries.

The Company currently generates a majority of its revenue from clients in the commercial aerospace industry, the business jet industry and the military. The Company's growth and financial results are largely dependent on continued demand for its products and services from clients in these industries. When these industries experiences a downturn, it is possible that customers in these sectors may conduct less business with the Company.

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Collective Bargaining Agreements

12 Months Ended

Mar. 31, 2021

Collective Bargaining Agreements [Abstract]

Collective Bargaining Agreements

20.    COLLECTIVE BARGAINING AGREEMENTS

Approximately 19% of the Company's labor force is covered under collective bargaining agreements. As of March 31, 2021, none of the Company's collectively bargained workforce are working under contracts that have expired, and 16% of the Company’s collectively bargained workforce are working under contracts that are set to expire within one year.

During the fiscal year ended March 31, 2020, effects and closure agreements were made for the Tulsa, Oklahoma, and Grand Prairie, Texas, locations.  In addition, the Company and leadership of Aero Lodge No.735 of the International Association of Machinists and Aerospace Workers (“IAM”) agreed to negotiate a Memorandum of Agreement to sunset the retiree medical plans.  Both the Company and the IAM leadership full endorsed this agreement, and local IAM members voted to ratify it on August 10, 2019.  

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Segments

12 Months Ended

Mar. 31, 2021

Segment Reporting [Abstract]

Segments

21.    SEGMENTS

The Company reports financial performance based on the following two reportable segments: Systems & Support and Aerospace Structures. The Company’s reportable segments are aligned with how the business is managed, and the Company's views of the markets it serves. The Chief Operating Decision Maker (the "CODM") evaluates performance and allocates resources based upon review of segment information. The CODM utilizes earnings before interest, income taxes, depreciation and amortization, and pension (“Adjusted EBITDAP”) as a primary measure of segment profitability to evaluate performance of its segments and allocate resources.

Segment Adjusted EBITDAP is total segment revenue reduced by operating expenses (less depreciation and amortization) identifiable with that segment. Corporate includes general corporate administrative costs and any other costs not identifiable with one of the Company’s segments, including loss on sale of assets and businesses of $104,702 for the year ended March 31, 2021.

The Company does not accumulate net sales information by product or service or groups of similar products and services, and therefore the Company does not disclose net sales by product or service because to do so would be impracticable.

Selected financial information for each reportable segment is as follows:

	Year Ended March 31, 2021
	Total			Corporate & Eliminations			Systems & Support			Aerospace Structures
Net sales to external customers	$	1,869,719		$	—		$	1,056,822		$	812,897
Intersegment sales (eliminated in consolidation)		-			(4,653	)		3,179			1,474
Segment profit and reconciliation to consolidated income before    income taxes:
Adjusted EBITDAP		173,197			-			155,693			17,504
Reconciliation of segment profit to income (loss) before income    taxes
Depreciation and amortization		(93,334	)		(3,459	)		(33,549	)		(56,326	)
Interest expense and other, net		(171,397	)
Corporate expenses		(51,104	)
Share-based compensation expense		(12,701	)
Loss on sale of assets and businesses		(104,702	)
Amortization of acquired contract liabilities		38,564
Non-service defined benefit income		49,519
Union represented employee incentives		-
Legal judgment gain, net		-
Impairment of rotable inventory		(23,689	)
Impairment of long-lived assets		(252,382	)
Income before income taxes		(448,029	)
Total capital expenditures	$	25,178		$	1,030		$	15,239		$	8,909
Total assets	$	2,450,935		$	536,003		$	1,469,593		$	445,339

	Year Ended March 31, 2020
	Total			Corporate & Eliminations			Systems & Support			Aerospace Structures
Net sales to external customers	$	2,900,117		$	—		$	1,350,761		$	1,549,356
Intersegment sales (eliminated in consolidation)		—			(13,334	)		6,803			6,531
Segment profit and reconciliation to consolidated income before    income taxes:
Adjusted EBITDAP		305,784			—			205,352			100,432
Reconciliation of segment profit to income (loss) before income    taxes
Depreciation and amortization		(138,168	)		(3,374	)		(32,376	)		(102,418	)
Interest expense and other, net		(122,129	)
Corporate expenses		(53,082	)
Share-based compensation expense		(11,062	)
Loss on sale of assets and businesses		(56,916	)
Amortization of acquired contract liabilities		75,286
Non-service defined benefit income		40,587
Union represented employee incentives		(7,071	)
Legal judgment gain, net		9,257
Impairment of goodwill		(66,121	)
Income before income taxes		(23,635	)
Total capital expenditures	$	39,834		$	1,502		$	17,141		$	21,191
Total assets	$	2,980,333		$	481,162		$	1,478,679		$	1,020,492

	Year Ended March 31, 2019
	Total			Corporate & Eliminations			Systems & Support			Aerospace Structures
Net sales to external customers	$	3,364,930		$	—		$	1,309,474		$	2,055,456
Intersegment sales (eliminated in consolidation)		—			(22,485	)		15,537			6,948
Segment profit and reconciliation to consolidated income before    income taxes:
Adjusted EBITDAP		215,418			—			202,346			13,072
Reconciliation of segment profit to income (loss) before income    taxes
Depreciation and amortization		(149,904	)		(3,100	)		(35,373	)		(111,431	)
Interest expense and other, net		(114,619	)
Corporate expenses		(74,706	)
Share-based compensation expense		(10,259	)
Loss on sale of assets and businesses		(235,301	)
Amortization of acquired contract liabilities		67,314
Non-service defined benefit income		56,726
Loss on adoption of ASU 2017-07		(87,241	)
Income before income taxes		(332,572	)
Total capital expenditures	$	47,099		$	784		$	15,734		$	30,581

During fiscal years ended March 31, 2021, 2020, and 2019, the Company had foreign sales of $359,406, $724,193, and $960,299, respectively. The Company reports as foreign sales those sales with delivery points outside of the United States. As of March 31, 2021 and 2020, the Company had foreign long-lived assets of $213,919 and $205,243, respectively.

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Subsequent Events

12 Months Ended

Mar. 31, 2021

Subsequent Events [Abstract]

Subsequent Events

22.    Subsequent Events

As disclosed in Note 3, subsequent to March 31, 2021, we completed the sale of our manufacturing operations in Milledgeville, Georgia, Rayong, Thailand, and Red Oak, Texas, receiving net proceeds of approximately $155,000.  We intend to use approximately $120,000 of the net proceeds to redeem approximately $112,500 aggregate principal amount of the First Lien Notes at a redemption price of 106.656%, plus accrued and unpaid interest. The redemption is required by the terms of the First Lien Notes, and following the redemption, approximately $587,500 aggregate principal amount of First Lien Notes will remain outstanding. We also expect that in the first quarter of fiscal 2022 we will use available cash to redeem all $236,471 aggregate principal outstanding amount of our 2022 Notes at a redemption price of 100.000%, plus accrued and unpaid interest.  Subsequent to this redemption, we will have no material outstanding indebtedness maturing before 2024.

In addition, as a result of the completed sale of these manufacturing operations, the Company expects to recognize a curtailment loss in the range of $10,000 to $20,000.

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Schedule II - Valuation and Qualifying Accounts

12 Months Ended

Mar. 31, 2021

Valuation And Qualifying Accounts [Abstract]

Valuation and Qualifying Accounts

SCHEDULE II—VALUATION AND QUALIFYING ACCOUNTS

(in thousands)

	Balance at beginning of year		Additions charged to (income) expense			Other (1)		Balance at end of year
For year ended March 31, 2021:
Deferred tax assets valuation allowance	$	438,667		114,283			15,223	$	568,173
For year ended March 31, 2020:
Deferred tax assets valuation allowance	$	399,013		(3,474	)		43,128	$	438,667
For year ended March 31, 2019:
Deferred tax assets valuation allowance	$	146,770		93,311			158,932	$	399,013

(1) Adjustments relate to changes in defined benefit pension plan and other postretirement benefit plan obligations.  The adjustment in the year ended March 31, 2019, also included an adjustment of approximately $132,000 as a result of the adoption of ASC 606.

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Summary of Significant Accounting Policies (Policies)

12 Months Ended

Mar. 31, 2021

Accounting Policies [Abstract]

Standards Recently Implemented and Standards Issued Not Yet Implemented

Standards Recently Implemented

Adoption of ASU 2016-13

In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.  This ASU modifies the measurement of expected credit losses of certain financial instruments. ASU 2016-13 is effective for annual periods beginning after December 15, 2019, and interim periods within those annual periods.  The amendments in this ASU should be applied on a modified retrospective basis to all periods presented. The Company adopted ASU 2016-13 effective April 1, 2020, and the impact on its consolidated financial statements was not significant.  

In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework – Changes to the Disclosure Requirements for Fair Value Measurement.  This ASU modifies the disclosure requirements for fair value measurements by removing, modifying or adding certain disclosures.  ASU 2018-13 is effective for annual periods beginning after December 15, 2019, and interim periods within those annual periods, with early adoption permitted.  The amendments on changes in unrealized gains and losses, the range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements, and the narrative description of measurement uncertainty should be applied prospectively for only the most recent interim or annual period presented in the initial fiscal year of adoption.  All other amendments should be applied retrospectively to all periods presented upon their effective date.  The Company adopted ASU 2018-13 effective April 1, 2020, and the adoption did not have a significant impact on its consolidated financial statement disclosures.

In August 2018, the FASB issued ASU 2018-14, Compensation—Retirement Benefits—Defined Benefit Plans—General (Subtopic 715-20): Disclosure Framework—Changes to the Disclosure Requirements for Defined Benefit Plans, which modifies the annual disclosure requirements for defined benefit pension plans and other postretirement plans.  ASU 2018-14 is effective for annual

periods ending after December 15, 2020, with early adoption permitted.  The amendments in this ASU should be applied on a retrospective basis to all periods presented.  The Company adopted ASU 2018-14 effective April 1, 2020, and the adoption did not have a significant impact on its consolidated financial statement disclosures.

Standards Issued Not Yet Implemented

In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes.  This ASU modifies ASC 740, Income Taxes to simplify the accounting for income taxes. ASU 2019-12 is effective for fiscal years beginning after December 15, 2020, with early adoption permitted. The Company will adopt and implement this ASU for its fiscal year beginning April 1, 2021. The adoption is not expected to have a material impact on the Company’s financial position or results of operations.

Impact of Change in Accounting Principle

Effective April 1, 2020, the Company changed its method of accounting for the determination of the market-related value of assets (“MRVA”) for a class of assets (fixed income securities) within the qualified U.S. defined benefit plan (the “Plan”) which is used in determining the expected return on asset component of net periodic benefit income.  This class of assets is composed solely of the fixed income securities asset class held in the portfolio for the Plan, which provides a natural hedge (liability-hedging assets) against the changes in the Plan’s liability due to changes in market interest rates. Refer to Note 15 for the Company’s fair value disclosure by asset classification.  The Company’s previous method of accounting was to calculate the MRVA for all the Plan’s assets recognizing investment gains and losses into the MRVA over a five-year period.  The Company has changed its method of accounting and elected to use the fair value of its fixed income assets, which represent approximately 44% of the Plan’s assets as of the effective date of the change in accounting principle, to determine the MRVA. This change in accounting principle is preferable as it results in an expected return on asset component of net periodic benefit income that more accurately reflects the changes in the fair values of the fixed income securities.  No change is being made to the accounting principle for the other classes of pension assets, which represent the remaining 56% of the pension asset portfolio for the Plan.  The gains and losses for these other plan assets will continue to be amortized into the MRVA over a five-year period.

The change in accounting principle requires retrospective application and prospective disclosure.  The Company applied the change effective April 1, 2020, and recorded a cumulative adjustment to equity as of the earliest period presented.  The tables below represent the impact of this change on the consolidated statements of operations (including earnings per share) and the consolidated statements of comprehensive loss for the periods presented below.  The change in accounting principle had no impact on the consolidated statements of cash flows for these periods.

The tables below represent the impact of the change in accounting principle on the consolidated statement of operations and the consolidated statements of comprehensive loss for the year ended March 31, 2021.

	Year Ended March 31, 2021
	As Reported (With Change)			Impact of Change			Without Change
Non-service defined benefit income	$	(49,519	)	$	(6,112	)	$	(43,407	)
Loss before income taxes		(448,029	)		6,112			(454,141	)
Income tax expense		2,881			-			2,881
Net loss	$	(450,910	)	$	6,112		$	(457,022	)
Net Loss per share - basic & diluted
Basic	$	(8.55	)	$	0.12		$	(8.67	)
Diluted	$	(8.55	)	$	0.12		$	(8.67	)
Defined benefit pension plans and other postretirement benefits:
Total defined benefit pension plans and other postretirement    benefits, net of taxes	$	191,054		$	(6,112	)		197,166
Total other comprehensive income	$	216,256		$	(6,112	)		222,368
Comprehensive loss	$	(234,654	)	$	-			(234,654	)

The table below represents the impact of the change in accounting principle on the consolidated balance sheet as of March 31, 2021.

Stockholders' deficit:	As Reported (With Change), March 31, 2021			Impact of Change			Without Change, March 31, 2021
Accumulated other comprehensive loss	$	(530,192	)	$	(33,132	)		(497,060	)
Accumulated deficit	$	(1,254,391	)	$	33,132			(1,287,523	)
Total stockholders' deficit	$	(818,853	)	$	-			(818,853	)

Cash and Cash Equivalents

Cash and Cash Equivalents

Cash equivalents consist of highly liquid investments with a maturity of three months or less at the time of purchase. Fair value of cash equivalents approximates carrying value.

Trade and Other Receivables, net

Trade and Other Receivables, net

Trade and other receivables are recorded net of an allowance for expected credit losses. Trade and other receivables include amounts billed and currently due from customers and amounts retained by the customer pending contract completion. The Company performs ongoing credit evaluations of its customers and generally does not require collateral. The Company pools receivables that share underlying risk characteristics and records the allowance for expected credit losses based on a combination of prior experience, current economic conditions and management’s expectations of future economic conditions, and specific collectibility matters when they arise. The Company writes off balances against the allowance for expected credit losses when collectibility is deemed remote. The Company's trade and other receivables are exposed to credit risk; however, the risk is limited due to the diversity of the customer base. For the years ended March 31, 2021 and 2020, credit loss expense and write-offs were immaterial.  

Trade and other receivables, net composed of the following:

	March 31,
	2021			2020
Total trade receivables	$	192,888		$	314,007
Other receivables		9,273			49,773
Total trade and other receivables		202,161			363,780
Less: Allowance for credit losses		(8,095	)		(4,293	)
Total trade and other receivables, net	$	194,066		$	359,487

Goodwill and Intangible Assets

Goodwill and Intangible Assets

The Company accounts for goodwill and intangible assets in accordance with ASC 350, Intangibles—Goodwill and Other. Under ASC 350, goodwill and intangible assets with indefinite lives are not amortized; rather, they are tested for impairment on at least an annual basis. Intangible assets with finite lives are amortized over their useful lives.

The Company assesses whether goodwill impairment exists using both the qualitative and quantitative assessments. The qualitative assessment involves determining whether events or circumstances exist that indicate it is more likely than not that the fair value of a reporting unit is less than its carrying amount, including goodwill. If based on this qualitative assessment the Company determines it is not more likely than not that the fair value of a reporting unit is less than its carrying amount or if the Company elects not to perform a qualitative assessment, a quantitative assessment is performed as required by ASC 350 to determine whether a goodwill impairment exists at the reporting unit.

The quantitative test is used to compare the carrying amount of the reporting unit's assets to the fair value of the reporting unit. If the fair value exceeds the carrying value, no further evaluation is required, and no impairment loss is recognized. If the carrying amount exceeds the fair value, then an impairment loss occurs. The impairment is measured by using the amount by which the carrying value exceeds the fair value not to exceed the amount of recorded goodwill. The determination of the fair value of its reporting units is based, among other things, on estimates of future operating performance of the reporting unit being valued. The Company is required to complete an impairment test for goodwill and record any resulting impairment losses at least annually. Changes in market conditions, among other factors, may have an impact on these estimates and require interim impairment assessments.

When performing the quantitative impairment test, the Company's methodology includes the use of an income approach which discounts future net cash flows to their present value at a rate that reflects the Company's cost of capital, otherwise known as the discounted cash flow method ("DCF"). These estimated fair values are based on estimates of future cash flows of the businesses.

Factors affecting these future cash flows include the continued market acceptance of the products and services offered by the businesses, the development of new products and services by the businesses and the underlying cost of development, the future cost structure of the businesses and future technological changes. The Company also incorporates market multiples for comparable companies in determining the fair value of its reporting units. Any such impairment would be recognized in full in the reporting period in which it has been identified.  The fair value estimates resulting from the application of these methodologies are based on inputs classified within Level 3 of the fair value hierarchy, as described below.  

During the fourth quarter of the fiscal year ended March 31, 2021, the Company performed its annual goodwill impairment assessment for each of its reporting units with no impairment identified.

In fiscal 2020, at March 31, 2020, the Company identified indicators of impairment due to the decline in the Company’s share price as well as potential negative impacts due to the uncertainty of the impact of the COVID-19 pandemic.  As a result of these indicators, the Company performed an interim assessment of goodwill, which included using a combination of both market and income approaches to estimate the fair value of each reporting unit. The Company concluded that its Product Support reporting unit had a fair value that was lower than its carrying value by an amount that exceeded the remaining goodwill for the reporting unit. Therefore, the Company recorded a noncash impairment charge during the fiscal quarter ended March 31, 2020, of $66,121, which is presented on the consolidated statements of operations as “Impairment of goodwill” for the fiscal year ended March 31, 2020. The decline in fair value was the result of expected declines in revenues from MRO services and the uncertainty in the rate and timing of recovery and therefore the timing of associated earnings and cash flows.

Finite-lived intangible assets are amortized over their useful lives ranging from 7 to 30 years. The Company continually evaluates whether events or circumstances have occurred that would indicate that the remaining estimated useful lives of long-lived assets, including intangible assets, may warrant revision or that the remaining balance may not be recoverable. Long-lived assets are evaluated for indicators of impairment. When factors indicate that long-lived assets, including intangible assets, should be evaluated for possible impairment, an estimate of the related undiscounted cash flows over the remaining life of the long-lived assets, including intangible assets, is used to measure recoverability based on the primary asset of the asset group. Some of the more important factors management considers include the Company's financial performance relative to expected and historical performance, significant changes in the way the Company manages its operations, negative events that have occurred, and negative industry and economic trends. If the estimated undiscounted cash flows are less than the carrying amount, measurement of the impairment will be based on the difference between the carrying value and fair value of the asset group, generally determined based on the present value of expected future cash flows associated with the use of the asset.

As disclosed in Note 3, in May 2020, the Company’s Board of Directors committed to a plan (i) to sell its composites manufacturing operations located in Milledgeville, Georgia, and Rayong, Thailand, and (ii) to transfer the assets and certain liabilities associated with its Gulfstream G650 wing supply chain activities (as disclosed in Note 3, this transaction closed in August 2020). These planned divestitures represent the divestiture of certain assets and liabilities of an operating business within the Aerospace Structures segment that the Company has identified as an asset group pursuant to the provisions of ASC 360, Property, Plant, and Equipment. As a result, as of May 31, 2020, the Company concluded that the planned divestitures represented a significant change in the manner in which the related asset group was expected to be used, and that the asset group therefore needed to be tested for recoverability. The asset group primarily consists of working capital, fixed assets and definite-lived intangible assets. The Company first determined that the relevant long-lived asset group was not recoverable by comparing the undiscounted cash flows expected to be generated by the long-lived asset group to the carrying value of the asset group.  As a result, the Company estimated the fair value of the long-lived asset group and concluded that the asset group was impaired. The Company used a multi-period excess earnings approach to estimate the fair value of the long-lived asset group for purposes of testing the asset group for impairment.  This method estimates fair value based on the expected future excess earnings stream attributable to the asset group.  This method requires the use of several key assumptions, including revenue projections that consider historical and estimated future results, general economic and market conditions, as well as the impact of planned business and operational strategies. A discount rate of 15.0% was applied to the estimated future excess earnings and cash flows in order to estimate the fair value of the asset group as of the measurement date. The Company has determined that the lowest level of the inputs that are significant to the fair value measurement are unobservable inputs that fall within Level 3 of the fair value hierarchy.

In accordance with ASC 360, the Company allocated the resulting impairment to the specific long-lived assets within the asset group on a pro rata basis, except that the loss allocated to an individual long-lived asset of the group did not reduce the carrying amount of that asset below its estimated fair value.  As a result, the Company recognized a total noncash impairment charge of $252,382 in the first quarter, primarily allocated to definite-lived intangible assets, which is presented as “Impairment of long-lived assets” on the accompanying consolidated statements of operations.  In January 2021, the Company’s Board of Directors committed to a plan to sell its manufacturing operations located in Red Oak, Texas.  As a result of this decision and the resulting classification of this disposal group as held for sale, the Company fully impaired the remaining customer relationship intangible asset within the Aerospace Structures segment and recognized a noncash impairment charge of $6,696, which has been included in the impairment on the assets held for sale as disclosed in Note 3 and is presented within “Loss on sale of assets and businesses” on the accompanying consolidated statement of operations.

See below for the Company's accounting policy regarding fair value measurements and the definition of fair value levels.

Revenue Recognition and Contract Balances

Revenue Recognition and Contract Balances

The Company adopted ASC 606 on April 1, 2018.  The Company's revenue is principally from contracts with customers to provide design, development, manufacturing, and support services associated with specific customer programs. The Company regularly enters into long-term master supply agreements that establish general terms and conditions and may define specific program requirements. Many agreements include clauses that provide sole supplier status to the Company for the duration of the program’s life. Purchase orders (or authorizations to proceed) are issued pursuant to the master supply agreements. Additionally, a majority of the Company’s agreements with customers include options for future purchases. Such options primarily reduce the administrative effort of issuing subsequent purchase orders and do not represent material rights granted to customers. The Company generally enters into agreements directly with its customers and is the principal in all current contracts.

The identification of a contract with a customer for purposes of accounting and financial reporting requires an evaluation of the terms and conditions of agreements to determine whether presently enforceable rights and obligations exist. Management considers a number of factors when making this evaluation that include, but are not limited to, the nature and substance of the business exchange, the specific contractual terms and conditions, the promised products and services, the termination provisions in the contract, as well as the nature and execution of the customer’s ordering process and how the Company is authorized to perform work. Generally, presently enforceable rights and obligations are not created until a purchase order is issued by a customer for a specified number of units of product or services. Therefore, the issuance of a purchase order is generally the point at which a contract is identified for accounting and financial reporting purposes.

Management identifies the promises to the customer. Promises are generally explicitly stated in each contract, but management also evaluates whether any promises are implied based on the terms of the agreement, past business practice, or other facts and circumstances. Each promise is evaluated to determine if it is a performance obligation. A performance obligation is a promise in a contract to transfer a distinct good or service. The Company considers a number of factors when determining whether a promise is a distinct performance obligation, including whether the customer can benefit from the good or service on its own or together with other resources that are readily available to the customer, whether the Company provides a significant service of integrating goods or services to deliver a combined output to the customer, or whether the goods or services are highly interdependent. The Company’s performance obligations consist of a wide range of engineering design services and manufactured components, as well as spare parts and repairs for OEMs.

The transaction price for a contract reflects the consideration the Company expects to receive for fully satisfying the performance obligations in the contract. Typically, the transaction price consists solely of fixed consideration but may include variable consideration for contractual provisions such as unpriced contract modifications, cost-sharing provisions, and other receipts or payments to customers. The Company identifies and estimates variable consideration, typically at the most likely amount the Company expects to receive from its customers. Variable consideration is only included in the transaction price to the extent it is probable that a significant reversal of cumulative revenue recognized for the contract will not occur, or when the uncertainty associated with the variable consideration is resolved. The Company's contracts with customers generally require payment under normal commercial terms after delivery with payment typically required within 30 to 120 days of delivery. However, a subset of the Company’s current contracts includes significant financing components because the timing of the transfer of the underlying products and services under contract are at the customers’ discretion. For these contracts, the Company adjusts the transaction price to reflect the effects of the time value of money.

The Company generally is not subject to collecting sales tax and has made an accounting policy election to exclude from the transaction price any sales and other similar taxes collected from customers. As a result, any such collections are accounted for on a net basis.

The total transaction price is allocated to each of the identified performance obligations using the relative stand-alone selling price. The objective of the allocation is to reflect the consideration that the Company expects to receive in exchange for the products or services associated with each performance obligation. Stand-alone selling price is the price at which the Company would sell a promised good or service separately to a customer. Stand-alone selling prices are established at contract inception, and subsequent changes in transaction price are allocated on the same basis as at contract inception. When stand-alone selling prices for the Company’s products and services are not observable, the Company uses either the “Expected Cost Plus a Margin” or "Adjusted Market Assessment" approaches to estimate stand-alone selling price. Expected costs are typically derived from the available periodic forecast information.

Revenue is recognized when or as control of promised products or services transfers to a customer and is recognized at the amount allocated to each performance obligation associated with the transferred products or services. Service sales, principally representing repair, maintenance, and engineering activities are recognized over the contractual period or as services are rendered. Sales under long-term contracts with performance obligations satisfied over time are recognized using either an input or output method. The Company recognizes revenue over time as it performs on these contracts because of the continuous transfer of control to the customer as represented by contractual terms that entitle the Company to the reimbursement of costs plus a reasonable profit for work performed to manufacture products for which the Company has no alternate use or for work performed on a customer-owned asset.

With control transferring over time, revenue is recognized based on the extent of progress toward completion of the performance obligation. The Company generally uses the cost-to-cost input method of progress for its contracts because it best depicts the transfer of control to the customer that occurs as work progresses. Under the cost-to-cost method, the extent of progress toward completion is measured based on the proportion of costs incurred to date to the total estimated costs at completion of the performance obligation. The Company reviews its cost estimates on contracts on a periodic basis, or when circumstances change and warrant a modification to a previous estimate. Cost estimates are largely based on negotiated or estimated purchase contract terms, historical performance trends and other economic projections. Significant factors that influence these estimates include inflationary trends, technical and schedule risk, internal and subcontractor performance trends, business volume assumptions, asset utilization, and anticipated labor agreements.

Revenue and cost estimates are regularly monitored and revised based on changes in circumstances. Impacts from changes in estimates of net sales and cost of sales are recognized on a cumulative catch-up basis, which recognizes in the current period the cumulative effect of the changes on current and prior periods based on a performance obligation’s percentage of completion. Forward loss reserves for anticipated losses on long-term contracts are recorded in full when such losses become evident, to the extent required and are included in contract liabilities on the accompanying consolidated balance sheets. The Company believes that the accounting estimates and assumptions made by management are appropriate given the increased uncertainties surrounding the severity and duration of the impacts of the COVID-19 pandemic, however actual results could differ materially from those estimates.

For the fiscal year ended March 31, 2021, cumulative catch-up adjustments resulting from changes in contract values and estimated costs that arose during the fiscal year increased revenue and decreased operating loss, net loss, and loss per share by approximately $4,796, $12,332, $12,332, and $0.23, respectively. The cumulative catch-up adjustments to operating income for the fiscal year ended March 31, 2021, included gross favorable adjustments of approximately $55,180 and gross unfavorable adjustments of approximately $42,848.

For the fiscal year ended March 31, 2020, cumulative catch-up adjustments resulting from changes in estimates increased net sales,  operating loss, net loss and loss per share by approximately $12,011, ($22,844), ($22,844), and ($0.45), respectively. The cumulative catch-up adjustments to operating income for the fiscal year ended March 31, 2020, included gross favorable adjustments of approximately $43,405 and gross unfavorable adjustments of approximately $66,249.

For the fiscal year ended March 31, 2019, cumulative catch-up adjustments resulting from changes in estimates decreased operating loss, net loss and decreased loss per share by approximately ($68,694), ($68,694), and ($1.38), respectively. The cumulative catch-up adjustments to operating income for the fiscal year ended March 31, 2019, included gross favorable adjustments of approximately $46,074 and gross unfavorable adjustments of approximately $114,768. These cumulative catch-up adjustments do not include a noncash charge the Company recorded as a result of the adoption of ASU 2017-07 of $87,241 due to a change in estimate from a change in accounting principles, which is presented on the accompanying consolidated statements of operations within cost of sales.

Revenues for performance obligations that are not recognized over time are recognized at the point in time when control transfers to the customer. For performance obligations that are satisfied at a point in time, the Company evaluates the point in time when the customer can direct the use of and obtain the benefits from the products and services. Generally, the shipping terms determine the point in time when control transfers to customers. Shipping and handling activities are not considered performance obligations and related costs are included in cost of sales as incurred.

Differences in the timing of revenue recognition and contractual billing and payment terms result in the recognition contract assets and liabilities. Refer to Note 4 for further discussion.

In connection with several of prior acquisitions, the Company assumed existing long-term contracts. Based on review of these contracts at the acquisition date, the Company concluded that the terms of certain contracts were either more or less favorable than could be realized in market transactions as of the date of the acquisition. As a result, the Company recognized acquired contract liabilities, net of acquired contract assets as of the acquisition date of each respective acquisition, based on the present value of the difference between the contractual cash flows of the executory contracts and the estimated cash flows had the contracts been executed at the acquisition date. The liabilities principally relate to long-term contracts that were initially executed several years prior to the respective acquisition. The Company measured these net liabilities in the year they were acquired under the measurement provisions of ASC 820, Fair Value Measurement, which is based on the price to transfer the obligation to a market participant at the measurement date, assuming that the net liabilities will remain outstanding in the marketplace. The portion of the Company's revenue resulting from transactions other than contracts with customers pertains to the amortization of these acquired contract liabilities as the related contractual performance obligations are satisfied.  Adjustments to these liabilities due to significant changes in the total estimated costs of the contract are accounted for in a manner consistent with other loss contract reserves, with such adjustments recognized in cost of sales.

The balance of the liability as of March 31, 2021, is $43,888 and, based on the expected delivery schedule of the underlying contracts, the Company estimates annual amortization of the liability as follows: 2022 — $22,897; 2023 — $3,347; 2024 — $2,501; 2025 — $2,564; 2026 — $1,282; thereafter $11,296.

Leases

Leases

The Company leases office space, manufacturing facilities, land, vehicles, and equipment. The Company determines if an agreement is or contains a lease at the lease inception date and recognizes right-of-use assets (“ROU”) and lease liabilities at the lease commencement date. A ROU asset and corresponding lease liability are not recorded for leases with an initial term of 12 months or less (“short-term leases”).

ROU assets represent the Company's right to use an underlying asset during the lease term, and lease liabilities represent the Company's obligation to make lease payments arising from the lease. The determination of the length of lease terms is affected by options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option. The existence of significant economic incentive is the primary consideration when assessing whether the Company is reasonably certain of exercising an option in a lease. Both finance and operating lease ROU assets and liabilities are recognized at commencement date and measured as the present value of lease payments to be made over the lease term. As the interest rate implicit in the lease is not readily available for most of the Company's leases, the Company uses its estimated incremental borrowing rate in determining the present value of lease payments. The estimated incremental borrowing rate is derived from information available at the lease commencement date. The lease ROU asset recognized at commencement is adjusted for any lease payments related to initial direct costs, prepayments, and lease incentives.

For operating leases, lease expense is recognized on a straight-line basis over the lease term. For finance leases, lease expense comprises the amortization of the ROU assets recognized on a straight-line basis generally over the shorter of the lease term or the estimated useful life of the underlying asset and interest on the lease liability. Variable lease payments not dependent on a rate or index are recognized when the event, activity, or circumstance in the lease agreement upon which those payments are contingent is probable of occurring and are presented in the same line of the consolidated balance sheet as the rent expense arising from fixed payments. The Company has lease agreements with lease and non-lease components. Non-lease components are combined with the related lease components and accounted for as lease components for all classes of underlying assets.

Retirement Benefits

Retirement Benefits

Defined benefit pension plans are recognized in the consolidated financial statements on an actuarial basis. A significant element in determining the Company's pension income (expense) is the expected long-term rate of return on plan assets. This expected return is an assumption as to the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the projected pension benefit obligation. The Company applies this assumed long-term rate of return to a calculated value of plan assets, which recognizes changes in the fair value of plan assets in a systematic manner over five years. This produces the expected return on plan assets that is included in pension income (expense). The difference between this expected return and the actual return on plan assets is deferred. The net deferral of past asset gains (losses) affects the calculated value of plan assets and, ultimately, future pension income (expense).

The Company periodically experiences events or makes changes to its benefit plans that result in curtailment or special charges. Curtailments are recognized when events occur that significantly reduce the expected years of future service of present employees or eliminates the benefits for a significant number of employees for some or all of their future service.

Curtailment losses are recognized when it is probable the curtailment will occur and the effects are reasonably estimable. Curtailment gains are recognized when the related employees are terminated or a plan amendment is adopted, whichever is applicable.

From time to time, the Company may enter into transactions that relieve it of primary responsibility for all or more than a minor portion of certain of its pension benefit obligations.  When these transactions are effected through an irrevocable action that relieves the Company of primary responsibility for its pension or other postretirement benefit obligations and eliminates significant risks related to the obligation and the related assets used to effect the transaction, they are considered settlements, as defined by ASC 715, Compensation – Retirement Benefits.  When a transaction meets the definition of a settlement, at the time of settlement the Company recognizes as a gain or loss the pro rata amount of the net gain or loss in accumulated other comprehensive income based on the proportion of the projected benefit obligation settled to the total projected benefit obligation.  

As required under ASC 715, the Company remeasures plan assets and obligations during an interim period whenever a significant event occurs that results in a material change in the net periodic pension cost. The determination of significance is based on judgment and consideration of events and circumstances impacting the pension costs.

At March 31 of each year, the Company determines the fair value of its pension plan assets as well as the discount rate to be used to calculate the present value of plan liabilities. The discount rate is an estimate of the interest rate at which the pension benefits could be effectively settled. In estimating the discount rate, the Company looks to rates of return on high-quality, fixed-income investments currently available and expected to be available during the period to maturity of the pension benefits. The Company uses a portfolio of fixed-income securities, which receive at least the second-highest rating given by a recognized ratings agency.

Fair Value Measurements

Fair Value Measurements

Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. When determining fair value measurements for assets and liabilities required to be recorded at fair value, the Company considers the principal or most advantageous market in which it would transact and also considers assumptions that market participants would use when pricing an asset or liability. The fair value hierarchy has three levels of inputs that may be used to measure fair value: Level 1—Unadjusted quoted prices in active markets for identical assets or liabilities; Level 2—Unadjusted quoted prices in active markets for similar assets or liabilities, or unadjusted quoted prices for identical or similar assets or liabilities in markets that are not active, or inputs other than quoted prices that are observable for the asset or liability; and Level 3—Unobservable inputs for the asset or liability. The Company has applied fair value measurements when measuring the impairment of assets held for sale (see Note 3), when measuring long-lived asset impairment in the current period (see above within the disclosure of the Company’s goodwill and intangible asset accounting policies), and to its pension and postretirement plan assets (see Note 15).

Income Taxes

Income Taxes

The Company accounts for income taxes using the asset and liability method. The asset and liability method requires recognition of deferred tax assets and liabilities for expected future tax consequences of temporary differences that currently exist between tax bases and financial reporting bases of the Company's assets and liabilities. A valuation allowance is provided on deferred taxes if it is determined that it is more likely than not that the asset will not be realized.

Management judgment is required to determine the amount of benefit to be recognized in relation to an uncertain tax position. The Company uses a two-step process to evaluate tax positions. The first step requires an entity to determine whether it is more likely than not (greater than 50% chance) that the tax position will be sustained. The second step requires an entity to recognize in the financial statements the benefit of a tax position that meets the more-likely-than-not recognition criterion. The amounts ultimately paid upon resolution of issues raised by taxing authorities may differ materially from the amounts accrued and may materially impact the financial statements of the Company in future periods. The Company recognizes penalties and interest accrued related to income tax liabilities in the provision for income taxes on its consolidated statements of operations.

Supplemental Cash Flow Information

Supplemental Cash Flow Information

For the fiscal year ended March 31, 2021, the Company paid $2,297 for income taxes, net of income tax refunds received. For the fiscal year ended March 31, 2020, the Company paid $4,005 for income taxes, net of income tax refunds received.  For the fiscal year ended March 31, 2019, the Company received $4,701 as income tax refunds, net of tax paid.

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Background and Basis of Presentation (Tables)

12 Months Ended

Mar. 31, 2021

Change in Accounting Principle [Member]

Schedule of Impact of Change in Accounting Principle on Consolidated Financial Statements

The tables below represent the impact of the change in accounting principle on the consolidated statement of operations and the consolidated statements of comprehensive loss for the year ended March 31, 2021.

	Year Ended March 31, 2021
	As Reported (With Change)			Impact of Change			Without Change
Non-service defined benefit income	$	(49,519	)	$	(6,112	)	$	(43,407	)
Loss before income taxes		(448,029	)		6,112			(454,141	)
Income tax expense		2,881			-			2,881
Net loss	$	(450,910	)	$	6,112		$	(457,022	)
Net Loss per share - basic & diluted
Basic	$	(8.55	)	$	0.12		$	(8.67	)
Diluted	$	(8.55	)	$	0.12		$	(8.67	)
Defined benefit pension plans and other postretirement benefits:
Total defined benefit pension plans and other postretirement    benefits, net of taxes	$	191,054		$	(6,112	)		197,166
Total other comprehensive income	$	216,256		$	(6,112	)		222,368
Comprehensive loss	$	(234,654	)	$	-			(234,654	)

The table below represents the impact of the change in accounting principle on the consolidated balance sheet as of March 31, 2021.

Stockholders' deficit:	As Reported (With Change), March 31, 2021			Impact of Change			Without Change, March 31, 2021
Accumulated other comprehensive loss	$	(530,192	)	$	(33,132	)		(497,060	)
Accumulated deficit	$	(1,254,391	)	$	33,132			(1,287,523	)
Total stockholders' deficit	$	(818,853	)	$	-			(818,853	)

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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Mar. 31, 2021

Accounting Policies [Abstract]

Summary of Trade and Other Receivables Net

Trade and other receivables, net composed of the following:

	March 31,
	2021			2020
Total trade receivables	$	192,888		$	314,007
Other receivables		9,273			49,773
Total trade and other receivables		202,161			363,780
Less: Allowance for credit losses		(8,095	)		(4,293	)
Total trade and other receivables, net	$	194,066		$	359,487

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Revenue Recognition and Contracts with Customers (Tables)

12 Months Ended

Mar. 31, 2021

Change In Contract With Customer Asset And Liability [Abstract]

Disaggregation of Revenue

The following table shows disaggregated net sales satisfied overtime and at a point in time (excluding intercompany sales) for the years ended March 31, 2021 and 2020:

	Year Ended March 31,
	2021		2020
Systems & Support
Satisfied over time	$	464,874	$	578,117
Satisfied at a point in time		576,886		738,158
Revenue from contracts with customers		1,041,760		1,316,275
Amortization of acquired contract liabilities		15,062		34,486
Total revenue		1,056,822		1,350,761
Aerospace Structures
Satisfied over time	$	746,545	$	1,378,866
Satisfied at a point in time		42,850		129,690
Revenue from contracts with customers		789,395		1,508,556
Amortization of acquired contract liabilities		23,502		40,800
Total revenue		812,897		1,549,356
	$	1,869,719	$	2,900,117

The following table shows disaggregated net sales by end market (excluding intercompany sales) for the years ended March 31, 2021 and 2020:

	Year Ended March 31,
	2021		2020
Systems & Support
Commercial aerospace	$	396,841	$	737,885
Military		552,323		436,166
Business jets		36,701		61,338
Regional		24,862		43,761
Non-aviation		31,033		37,125
Revenue from contracts with customers		1,041,760		1,316,275
Amortization of acquired contract liabilities		15,062		34,486
Total revenue	$	1,056,822	$	1,350,761
Aerospace Structures
Commercial aerospace	$	481,845	$	879,690
Military		137,466		116,846
Business jets		158,156		422,681
Regional		11,558		89,318
Non-aviation		370		21
Revenue from contracts with customers		789,395		1,508,556
Amortization of acquired contract liabilities		23,502		40,800
Total revenue		812,897		1,549,356
	$	1,869,719	$	2,900,117

Summary of Contract Assets and Liabilities Balances

Contract balances are classified as assets or liabilities on a contract-by-contract basis at the end of each reporting period. The following table summarizes the Company’s contract assets and liabilities balances:

	March 31, 2021			March 31, 2020			Change
Contract assets	$	139,937		$	267,079		$	(127,142	)
Contract liabilities		(305,116	)		(386,585	)		81,469
Net contract liability	$	(165,179	)	$	(119,506	)	$	(45,673	)

Schedule of Performance Obligations that are Expected to Be Recognized in Future

As of March 31, 2021, the Company has the following unsatisfied, or partially unsatisfied, performance obligations that are expected to be recognized in the future as noted in the table below. The Company expects options to be exercised in addition to the amounts presented below.

	Total		Less than 1 year		1-3 years		4-5 years		More than 5 years
Unsatisfied performance obligations	$	2,273,527	$	1,251,209	$	961,332	$	60,889	$	97

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Inventories (Tables)

12 Months Ended

Mar. 31, 2021

Inventory Disclosure [Abstract]

Schedule of components of inventories

The components of inventories are as follows:

	March 31,
	2021		2020
Raw materials	$	45,211	$	32,552
Work-in-process, including manufactured and purchased components		277,729		312,953
Finished goods		51,221		50,011
Rotable assets		26,205		57,460
Total inventories	$	400,366	$	452,976

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Property and Equipment (Tables)

12 Months Ended

Mar. 31, 2021

Property Plant And Equipment [Abstract]

Schedule of Net Property and Equipment

Net property and equipment is:

	March 31,
	2021		2020
Land	$	17,814	$	42,438
Construction-in-process		11,368		19,231
Buildings and improvements		144,756		285,407
Machinery and equipment		594,542		701,018
		768,480		1,048,094
Less: accumulated depreciation		557,111		629,953
	$	211,369	$	418,141

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Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Mar. 31, 2021

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Changes in the Carrying Value of Goodwill by Reportable Segment

The following is a summary of the changes in the carrying value of goodwill by reportable segment, for the fiscal years ended March 31, 2021 and 2020:

	Systems & Support
March 31, 2020	$	513,527
Effect of exchange rate changes		8,111
March 31, 2021	$	521,638

	Systems & Support
March 31, 2019	$	583,225
Effect of exchange rate changes		(3,577	)
Impairment of goodwill		(66,121	)
March 31, 2020	$	513,527

Schedule of Components of Intangible Assets

The components of intangible assets, net are as follows:

	March 31, 2021
	Weighted- Average Life (in Years)		Gross Carrying Amount		Accumulated Amortization			Net
Customer relationships		17.9	$	170,198	$	(74,253	)	$	95,945
Product rights, technology and licenses		11.4		55,050		(48,645	)		6,405
Other		30.0		300		(197	)		103
Total intangibles, net			$	225,548	$	(123,095	)	$	102,453

	March 31, 2020
	Weighted- Average Life (in Years)		Gross Carrying Amount		Accumulated Amortization			Net
Customer relationships		17.7	$	550,131	$	(276,980	)	$	273,151
Product rights, technology and licenses		11.4		54,676		(46,180	)		8,496
Noncompete agreements and other		16.7		2,656		(1,208	)		1,448
Tradenames		10.0		150,000		(51,127	)		98,873
Total intangibles, net			$	757,463	$	(375,495	)	$	381,968

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Accrued Expenses (Tables)

12 Months Ended

Mar. 31, 2021

Accrued Liabilities Current And Noncurrent [Abstract]

Schedule of Accrued Expenses

Accrued expenses consist of the following items:

	March 31,
	2021		2020
Accrued pension	$	1,097	$	753
Accrued other postretirement benefits		3,371		4,775
Accrued compensation and benefits		97,021		84,404
Accrued interest		31,036		13,252
Accrued warranties		24,492		30,079
Accrued workers' compensation		15,601		16,583
Accrued income tax		5,084		3,796
Operating lease liabilities		11,605		13,139
All other		81,853		60,622
Total accrued expenses	$	271,160	$	227,403

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Leases (Tables)

12 Months Ended

Mar. 31, 2021

Leases [Abstract]

Schedule of Components Lease Expense

The components of lease expense for the year ended March 31, 2021, are disclosed in the table below.

		Year Ended March 31,
Lease Cost	Financial Statement Classification	2021		2020
Operating lease cost	Cost of sales or Selling, general and administrative expense	$	22,976	$	24,539
Variable lease cost	Cost of sales or Selling, general and administrative expense		9,344		8,382
Financing Lease Cost:
Amortization of right-of-use assets	Depreciation and amortization		4,673		5,317
Interest on lease liability	Interest expense and other		1,580		2,307
Total lease cost (1)		$	38,573	$	40,545

(1) Total lease cost does not include short-term leases or sublease income, both of which are immaterial.

Schedule of Supplemental Cash Flow Information

Supplemental cash flow information for the years ended March 31, 2021 and 2020, is disclosed in the table below.

	2021		2020
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows used in operating leases	$	21,008	$	21,430
Operating cash flows used in finance leases		1,583		2,327
Financing cash flows used in finance leases		7,774		8,370
ROU assets obtained in exchange for lease liabilities
Operating leases		6,547		3,826
Finance leases	$	2,909	$	1,039

Schedule of Supplemental Balance Sheet Information Related to Leases

Supplemental balance sheet information related to leases as of March 31, 2021 and 2020, is disclosed in the table below.

		March 31,
Leases	Classification	2021			2020
Assets
Operating lease ROU assets	Other, net Assets held for sale	$	46,643		$	61,461
Finance lease ROU assets, cost	Property and equipment, net Assets held for sale		44,128			39,461
Accumulated amortization	Property and equipment, net Assets held for sale		(23,344	)		(18,650	)
Finance lease ROU assets, net			20,784			20,811
Total lease assets		$	67,427		$	82,272
Liabilities
Current
Operating	Accrued expenses Liabilities related to assets held for sale	$	12,885		$	13,139
Finance	Current portion of long-term debt Liabilities related to assets held for sale		5,972			7,336
Noncurrent
Operating	Other noncurrent liabilities Liabilities related to assets held for sale		42,385			54,687
Finance	Long-term debt, less current portion Liabilities related to assets held for sale		14,878			16,597
Total lease liabilities		$	76,120		$	91,759

Schedule of Information Related to Lease Terms and Discount Rates

Information related to lease terms and discount rates as of March 31, 2021 and 2020, is disclosed in the table below.

	2021			2020
Weighted average remaining lease term (years)
Operating leases		7.3			7.2
Finance leases		6.9			6.9
Weighted average discount rate
Operating leases		6.3	%		6.2	%
Finance leases		6.8	%		5.9	%

Schedule of Maturity of Lease Liabilities

The maturity of the Company's lease liabilities as of March 31, 2021, is disclosed in the table below.

	Operating leases			Finance leases			Total
FY2022	$	15,752		$	7,436		$	23,188
FY2023		10,561			4,322			14,883
FY2024		7,057			3,520			10,577
FY2025		6,339			1,961			8,300
FY2026		5,880			1,305			7,185
Thereafter		23,912			8,656			32,568
Total lease payments		69,501			27,200			96,701
Less: Imputed interest		(14,231	)		(6,350	)		(20,581	)
Total lease liabilities	$	55,270		$	20,850		$	76,120

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Long-term Debt (Tables)

12 Months Ended

Mar. 31, 2021

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments

Long-term debt consists of the following:

	March 31,
	2021			2020
Revolving credit facility	$	—		$	400,000
Receivable securitization facility		—			75,000
Finance leases		20,125			23,933
Senior secured first lien notes due 2024		700,000			—
Senior secured notes due 2024		525,000			525,000
Senior notes due 2022		236,471			300,000
Senior notes due 2025		500,000			500,000
Less: debt issuance costs		(24,053	)		(16,426	)
		1,957,543			1,807,507
Less: current portion		5,247			7,336
	$	1,952,296		$	1,800,171

Schedule of Carrying Amounts and Estimated Fair Values of Long-term Debt

Carrying amounts and the related estimated fair values of the Company's long-term debt not recorded at fair value in the accompanying consolidated financial statements are as follows:

March 31, 2021				March 31, 2020
Carrying Value		Fair Value		Carrying Value		Fair Value
$	1,957,543	$	2,085,204	$	1,807,507	$	1,559,455

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Other Noncurrent Liabilities (Tables)

12 Months Ended

Mar. 31, 2021

Other Liabilities Noncurrent [Abstract]

Schedule of Other Noncurrent Liabilities

	March 31,
	2021		2020
Acquired contract liabilities, net	$	43,888	$	92,962
Accrued warranties		9,519		31,036
Accrued workers' compensation		11,226		13,603
Noncurrent contract liabilities		100,737		91,265
Operating lease liabilities		26,060		54,687
Environmental contingencies		9,185		18,060
Income tax reserves		300		594
All other		6,463		3,962
Total other noncurrent liabilities	$	207,378	$	306,169

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Income Taxes (Tables)

12 Months Ended

Mar. 31, 2021

Income Tax Disclosure [Abstract]

Components of Loss from Continuing Operations before Income Taxes

The components of loss from continuing operations before income taxes are as follows:

	Year ended March 31,
	2021			2020			2019
Foreign	$	(1,518	)	$	33,399		$	(18,336	)
Domestic		(446,511	)		(57,034	)		(314,236	)
	$	(448,029	)	$	(23,635	)	$	(332,572	)

Components of Income Tax (Benefit) Expense

The components of income tax (benefit) expense are as follows:

	Year ended March 31,
	2021			2020			2019
Current:
Federal	$	—		$	(654	)	$	(1,253	)
State		(315	)		27			431
Foreign		3,372			3,602			3,335
		3,057			2,975			2,513
Deferred:
Federal		—			2,748			(9,076	)
State		—			73			1,593
Foreign		(176	)		2			(456	)
		(176	)		2,823			(7,939	)
	$	2,881		$	5,798		$	(5,426	)

Schedule of Reconciliation of Statutory Federal Income Tax Rate to Effective Tax Rate

A reconciliation of the statutory federal income tax rate to the effective tax rate is as follows:

	Year ended March 31,
	2021			2020			2019
Statutory federal income tax rate		21.0	%		21.0	%		21.0	%
State and local income taxes, net of federal tax benefit		2.7			(12.1	)		4.6
Goodwill impairment		—			(37.4	)		—
Disposition of business		—			—			3.2
Miscellaneous permanent items and nondeductible accruals		(0.7	)		3.9			(1.2	)
Research and development tax credit		0.7			30.4			3.3
Foreign tax credits		(0.3	)		(24.1	)		(0.7	)
Valuation allowance		(25.5	)		29.3			(28.6	)
Tax reform and CARES Act		—			(12.3	)		0.4
Global Intangible Low-Taxed Income		—			(20.4	)		(1.3	)
Other (including foreign rate differential and FIN 48)		1.4			(2.8	)		0.9
Effective income tax rate		(0.7	)%		(24.5	)%		1.6	%

Components of Deferred Tax Assets and Liabilities

The components of deferred tax assets and liabilities are as follows:

	March 31,
	2021			2020
Deferred tax assets:
Net operating loss and other credit carryforwards	$	345,071		$	318,341
Inventory		21,484			17,521
Accruals and reserves		34,379			40,492
Interest carryforward		62,893			38,383
Pension and other postretirement benefits		89,952			152,048
Lease right-of-use assets		6,890			11,495
Prepaid expenses and other		—			241
Acquired contract liabilities, net		7,504			21,771
		568,173			600,292
Valuation allowance		(512,554	)		(438,667	)
Net deferred tax assets		55,619			161,625
Deferred tax liabilities:
Deferred revenue		22,342			38,458
Property and equipment		12,581			34,939
Goodwill and other intangible assets		21,701			80,740
Lease liabilities		5,848			14,928
Prepaid expenses and other		588			—
		63,060			169,065
Net deferred tax liabilities	$	7,441		$	7,440

Schedule of Reconciliation of Liability for Uncertain Tax Positions

A reconciliation of the liability for uncertain tax positions, which are included in deferred taxes for the fiscal years ended March 31, 2021 and 2020, follows:

	Year ended March 31,
	2021			2020			2019
Beginning balance	$	19,127		$	19,373		$	11,759
Adjustments for tax positions related to the current year		311			1,057			7,364
Adjustments for tax positions of prior years		(7,688	)		(1,303	)		250
Ending balance	$	11,750		$	19,127		$	19,373

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Stockholders' Deficit (Tables)

12 Months Ended

Mar. 31, 2021

Equity [Abstract]

Schedule of Changes in Accumulated Other Comprehensive Loss

Changes in accumulated other comprehensive loss ("AOCI") by component for the years ended March 31, 2021 and 2020, were as follows:

	Currency Translation Adjustment			Unrealized Gains and Losses on Derivative Instruments			Defined Benefit Pension Plans and Other Postretirement Benefits				Total (1)
March 31, 2019	$	(48,606	)	$	(1,130	)	$	(466,275	)		$	(516,011	)
AOCI before reclassifications		(13,439	)		(1,611	)		(208,835	)			(223,885	)
Amounts reclassified from AOCI		—			(1,562	)		(4,990	)	(2)		(6,552	)
Net current period OCI		(13,439	)		(3,173	)		(213,825	)			(230,437	)
March 31, 2020		(62,045	)		(4,303	)		(680,100	)			(746,448	)
AOCI before reclassifications		19,884			5,891			168,701				194,476
Amounts reclassified from AOCI		—			(573	)		22,353		(2)		21,780
Net current period OCI		19,884			5,318			191,054				216,256
March 31, 2021	$	(42,161	)	$	1,015		$	(489,046	)		$	(530,192	)

(1) Net of tax.

(2) Includes amortization of actuarial losses and recognized prior service (credits) costs, which are included in the net periodic pension cost

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Loss per Share (Tables)

12 Months Ended

Mar. 31, 2021

Earnings Per Share [Abstract]

Summary of Reconciliation between Weighted-average Common Shares Outstanding used in Calculation of Basis and Diluted Loss Per Share

	Year ended March 31,
	2021		2020		2019
	(thousands)
Weighted average common shares outstanding—basic		52,739		50,494		49,698
Net effect of dilutive stock options and non-vested stock(1)		—		—		—
Weighted average common shares outstanding—diluted		52,739		50,494		49,698

(1) For the fiscal years ended March 31, 2021, 2020, and 2019, the shares that could potentially dilute earnings per share in the future but were not included in diluted weighted average common shares outstanding because to do so would have been anti-dilutive were immaterial.

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Employee Benefit Plans (Tables)

12 Months Ended

Mar. 31, 2021

Compensation And Retirement Disclosure [Abstract]

Schedule of Consolidated Defined Benefit Pension Plans

The following table sets forth the Company's consolidated defined benefit pension plans for its union and non-union employees as of March 31, 2021 and 2020, and the amounts recorded on the consolidated balance sheets at March 31, 2021 and 2020. Company contributions include amounts contributed directly to plan assets and indirectly as benefits paid from the Company's assets. Benefit payments reflect the total benefits paid from the plans and the Company's assets. Information on the plans includes both the domestic qualified and nonqualified plans and the foreign qualified plans.

	Pension Benefits						Other Postretirement Benefits
	Year ended March 31,						Year ended March 31,
	2021			2020			2021			2020
Change in projected benefit obligations
Projected benefit obligation at beginning of year	$	2,254,985		$	2,234,734		$	7,150		$	109,455
Service cost		1,537			2,336			—			62
Interest cost		64,599			68,446			112			1,559
Actuarial loss (gain)		83,263			138,652			(156	)		3,472
Plan amendments		—			4,898			—			(99,080	)
Curtailments		—			22,732			—			—
Divestitures		—			(55,354	)		—			—
Participant contributions		164			204			—			252
Settlements		—			(14,579	)		—			—
Special termination benefits		—			11,642			—			—
Benefits paid		(179,956	)		(156,084	)		(2,182	)		(8,570	)
Currency translation adjustment		5,656			(2,642	)		—			—
Projected benefit obligation at end of year	$	2,230,248		$	2,254,985		$	4,924		$	7,150
Accumulated benefit obligation at end of year	$	2,228,830		$	2,252,126		$	4,924		$	7,150
Assumptions used to determine benefit    obligations at end of year
Discount rate	2.05 - 3.17%			2.47 - 3.32%				2.51	%		3.00	%
Rate of compensation increase	2.80 - 3.50%			3.50 - 4.50%			N/A			N/A

Schedule of Change in Fair Value of Plan Assets

	Pension Benefits						Other Postretirement Benefits
	Year ended March 31,						Year ended March 31,
	2021			2020			2021			2020
Change in fair value of plan assets
Fair value of plan assets at beginning of year	$	1,598,045		$	1,796,111		$	—		$	—
Actual return on plan assets		388,392			(20,869	)		—			—
Settlements		—			(14,579	)		—			—
Participant contributions		164			204			—			252
Divestitures		—			(55,354	)		—			—
Company contributions		41,201			51,372			2,182			8,319
Benefits paid		(179,956	)		(156,084	)		(2,182	)		(8,571	)
Currency translation adjustment		6,117			(2,756	)		—			—
Fair value of plan assets at end of year	$	1,853,963		$	1,598,045		$	—		$	—
Funded status (underfunded)
Funded status	$	(376,285	)	$	(656,940	)	$	(4,924	)	$	(7,150	)
Reconciliation of amounts recognized on the    consolidated balance sheets
Pension asset—noncurrent	$	7,515		$	1,503		$	—		$	—
Accrued benefit liability—current		(1,097	)		(753	)		(3,372	)		(4,775	)
Accrued benefit liability—noncurrent		(382,703	)		(657,690	)		(1,552	)		(2,375	)
Net amount recognized	$	(376,285	)	$	(656,940	)	$	(4,924	)	$	(7,150	)
Reconciliation of amounts recognized in    accumulated other comprehensive income
Prior service credits	$	4,621		$	5,595		$	(54,109	)	$	(59,214	)
Actuarial losses (gains)		755,234			953,913			(53,542	)		(58,151	)
Income tax (benefits) expenses related to above    items		(204,594	)		(204,594	)		42,016			42,016
Unamortized benefit plan costs (gains)	$	555,261		$	754,914		$	(65,635	)	$	(75,349	)

Schedule of Components of Net Periodic Benefit Cost

The components of net periodic benefit cost for fiscal years ended March 31, 2021, 2020, and 2019, are as follows:

	Pension Benefits									Other Postretirement Benefits
	Year Ended March 31,									Year Ended March 31,
	2021			2020			2019			2021			2020			2019
Components of net periodic pension    cost
Service cost	$	1,537		$	2,336		$	3,292		$	0		$	62		$	227
Interest cost		64,599			68,446			79,446			112			1,559			4,039
Expected return on plan assets		(136,581	)		(141,972	)		(145,361	)		—			—			—
Amortization of prior service credit cost		974			(874	)		(3,619	)		(5,105	)		(4,872	)		(4,655	)
Amortization of net loss		31,248			28,288			20,151			(4,766	)		(6,361	)		(9,851	)
Curtailment loss (gain)		—			23,690			—			—			(49,491	)		—
Settlements		—			29,313			—			—			—			—
Special termination benefits		—			11,642			4,032			—			—			—
Total net periodic benefit (income)    expense	$	(38,223	)	$	20,869		$	(42,059	)	$	(9,759	)	$	(59,103	)	$	(10,240	)
Assumptions used to determine net    periodic pension cost
Discount rate	2.47 - 3.32%			2.54 - 3.88%			2.65 - 4.01%				3.00	%	2.68 - 3.77%				3.93	%
Expected long-term rate of return on plan assets	5.00 - 8.00%			5.00 - 8.00%			5.00 - 8.00%			N/A			N/A			N/A
Rate of compensation increase	3.50 - 4.50%			3.50 - 4.50%			3.50 - 4.50%			N/A			N/A			N/A

Schedule of Estimated Future Benefit Payments from Plan Assets

The total estimated future benefit payments for the pension plans are expected to be paid from the plan assets and company funds. The OPEB payments reflect the Company's portion of the funding. Estimated future benefit payments from plan assets and Company funds for the next ten years are as follows:

Year	Pension Benefits		Other Postretirement Benefits*
2022	$	192,745	$	3,375
2023		163,947		169
2024		163,676		161
2025		156,660		153
2026		154,324		143
2027 - 2031		705,477		585

Schedule of Allocation of Plan Assets

The table below sets forth the Company's target asset allocation for fiscal 2021 and the actual asset allocations at March 31, 2021 and 2020.

		Actual Allocation
	Target Allocation	March 31,
Asset Category	Fiscal 2021	2021			2020
Equity securities	40% - 50%		50	%		42	%
Fixed income securities	40% - 50%		39			50
Alternative investment funds	0% - 10%		5			6
Other	0% - 5%		6			2
Total			100	%		100	%

The tables below provide the fair values of the Company's plan assets at March 31, 2021 and 2020, by asset category. The table also identifies the level of inputs used to determine the fair value of assets in each category (refer to Note 2 for definition of levels).

	March 31, 2021
		Level 1		Level 2		Level 3		Total
Assets
Cash and cash equivalents		$	42,003	$	—	$	—	$	42,003
Equity securities
International			164,298		—		—		164,298
U.S. equity			7,410		—		—		7,410
U.S. commingled fund			537,813		—		—		537,813
International commingled fund			42,944		—		—		42,944
Fixed income securities
Corporate bonds			—		12,231		—		12,231
Government securities			—		103,853		—		103,853
U.S. commingled fund			509,760		—		—		509,760
Other
Insurance contracts			—		—		9,813		9,813
Total investment in securities—assets		$	1,304,228	$	116,084	$	9,813	$	1,430,125
U.S. equity commingled fund									17,289
International equity commingled fund									158,447
U.S. fixed income commingled fund									59,203
International fixed income commingled fund									1,599
Government securities commingled fund									24,384
Private equity and infrastructure									95,880
Other									1,549
Total investment measured at NAV as a    practical expedient								$	358,351
Receivables									67,378
Payables									(1,892	)
Total plan assets								$	1,853,962

	March 31, 2020
	Level 1		Level 2		Level 3		Total
Assets
Cash and cash equivalents	$	35,110	$	—	$	—	$	35,110
Equity securities
International		155,389		—		—		155,389
U.S. equity		2		—		—		2
U.S. commingled fund		400,131		—		—		400,131
International commingled fund		34,014		—		—		34,014
Fixed income securities
Corporate bonds		—		23,672		—		23,672
Government securities		—		93,677		—		93,677
U.S. commingled fund		605,487		—		—		605,487
Other
Insurance contracts		—		—		910		910
Total investment in securities—assets	$	1,230,133	$	117,349	$	910	$	1,348,392
U.S. equity commingled fund								8,180
International equity commingled fund								67,101
U.S. fixed income commingled fund								73,838
International fixed income commingled fund								1,380
Government securities commingled fund								8,333
Private equity and infrastructure								89,797
Other								1,534
Total investment measured at NAV as a    practical expedient							$	250,163
Receivables								3,292
Payables								(3,802	)
Total plan assets							$	1,598,045

Schedule of Effect of Twenty Five Basis-Point Change in Discount Rates

The effect of a 25 basis-point change in discount rates as of March 31, 2021, is shown below:

		Pension Benefits			Other Postretirement Benefits
Increase of 25 basis points
Obligation	*	$	(52,031	)	$	(33	)
Net periodic expense			586			4
Decrease of 25 basis points
Obligation	*	$	54,288		$	34
Net periodic expense			(707	)		4

* Excludes impact to plan assets due to the LDI investment approach discussed above under "Plan Assets, Investment Policy and Strategy."

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Stock Compensation Plans (Tables)

12 Months Ended

Mar. 31, 2021

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Status of Non-Vested Shares/Units of Restricted Stock and Deferred Stock Units

A summary of the status of the Company's non-vested shares/units of restricted stock and deferred stock units as of March 31, 2021, and changes during the fiscal year ended March 31, 2021, is presented below.

	Shares			Weighted- Average Grant Date Fair Value
Non-vested restricted awards and deferred stock units at March 31, 2020		1,159,630		$	24.40
Granted		1,154,181			11.35
Vested		(396,847	)		20.25
Forfeited		(218,205	)		17.58
Non-vested restricted awards and deferred stock units at March 31, 2021		1,698,759		$	15.46

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Segments (Tables)

12 Months Ended

Mar. 31, 2021

Segment Reporting [Abstract]

Schedule of Selected Financial Information for Each Reportable Segment and Reconciliation of EBITDAP to Operating Income

Selected financial information for each reportable segment is as follows:

	Year Ended March 31, 2021
	Total			Corporate & Eliminations			Systems & Support			Aerospace Structures
Net sales to external customers	$	1,869,719		$	—		$	1,056,822		$	812,897
Intersegment sales (eliminated in consolidation)		-			(4,653	)		3,179			1,474
Segment profit and reconciliation to consolidated income before    income taxes:
Adjusted EBITDAP		173,197			-			155,693			17,504
Reconciliation of segment profit to income (loss) before income    taxes
Depreciation and amortization		(93,334	)		(3,459	)		(33,549	)		(56,326	)
Interest expense and other, net		(171,397	)
Corporate expenses		(51,104	)
Share-based compensation expense		(12,701	)
Loss on sale of assets and businesses		(104,702	)
Amortization of acquired contract liabilities		38,564
Non-service defined benefit income		49,519
Union represented employee incentives		-
Legal judgment gain, net		-
Impairment of rotable inventory		(23,689	)
Impairment of long-lived assets		(252,382	)
Income before income taxes		(448,029	)
Total capital expenditures	$	25,178		$	1,030		$	15,239		$	8,909
Total assets	$	2,450,935		$	536,003		$	1,469,593		$	445,339

	Year Ended March 31, 2020
	Total			Corporate & Eliminations			Systems & Support			Aerospace Structures
Net sales to external customers	$	2,900,117		$	—		$	1,350,761		$	1,549,356
Intersegment sales (eliminated in consolidation)		—			(13,334	)		6,803			6,531
Segment profit and reconciliation to consolidated income before    income taxes:
Adjusted EBITDAP		305,784			—			205,352			100,432
Reconciliation of segment profit to income (loss) before income    taxes
Depreciation and amortization		(138,168	)		(3,374	)		(32,376	)		(102,418	)
Interest expense and other, net		(122,129	)
Corporate expenses		(53,082	)
Share-based compensation expense		(11,062	)
Loss on sale of assets and businesses		(56,916	)
Amortization of acquired contract liabilities		75,286
Non-service defined benefit income		40,587
Union represented employee incentives		(7,071	)
Legal judgment gain, net		9,257
Impairment of goodwill		(66,121	)
Income before income taxes		(23,635	)
Total capital expenditures	$	39,834		$	1,502		$	17,141		$	21,191
Total assets	$	2,980,333		$	481,162		$	1,478,679		$	1,020,492

	Year Ended March 31, 2019
	Total			Corporate & Eliminations			Systems & Support			Aerospace Structures
Net sales to external customers	$	3,364,930		$	—		$	1,309,474		$	2,055,456
Intersegment sales (eliminated in consolidation)		—			(22,485	)		15,537			6,948
Segment profit and reconciliation to consolidated income before    income taxes:
Adjusted EBITDAP		215,418			—			202,346			13,072
Reconciliation of segment profit to income (loss) before income    taxes
Depreciation and amortization		(149,904	)		(3,100	)		(35,373	)		(111,431	)
Interest expense and other, net		(114,619	)
Corporate expenses		(74,706	)
Share-based compensation expense		(10,259	)
Loss on sale of assets and businesses		(235,301	)
Amortization of acquired contract liabilities		67,314
Non-service defined benefit income		56,726
Loss on adoption of ASU 2017-07		(87,241	)
Income before income taxes		(332,572	)
Total capital expenditures	$	47,099		$	784		$	15,734		$	30,581

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Schedule II - Valuation and Qualifying Accounts (Tables)

12 Months Ended

Mar. 31, 2021

Valuation And Qualifying Accounts [Abstract]

Schedule of Valuation and Qualifying Accounts

	Balance at beginning of year		Additions charged to (income) expense			Other (1)		Balance at end of year
For year ended March 31, 2021:
Deferred tax assets valuation allowance	$	438,667		114,283			15,223	$	568,173
For year ended March 31, 2020:
Deferred tax assets valuation allowance	$	399,013		(3,474	)		43,128	$	438,667
For year ended March 31, 2019:
Deferred tax assets valuation allowance	$	146,770		93,311			158,932	$	399,013

(1) Adjustments relate to changes in defined benefit pension plan and other postretirement benefit plan obligations.  The adjustment in the year ended March 31, 2019, also included an adjustment of approximately $132,000 as a result of the adoption of ASC 606.

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Background and Basis of Presentation - Additional Information (Details)	12 Months Ended
	Mar. 31, 2021 Segment
Background And Basis Of Presentation [Line Items]
Number of reportable segments	2
Defined benefit plan percentage of fair value of investments of other pension assets	56.00%
Amortization period of gains and losses on other plan assets to be amortized into earnings	5 years
Change in Accounting Principle [Member]
Background And Basis Of Presentation [Line Items]
Defined benefit plan percentage of fair value of investments of fixed income assets	44.00%
ASU 2016-13 [Member]
Background And Basis Of Presentation [Line Items]
Change in accounting principle, accounting standards update, adopted [true false]	true
Change in accounting principle, accounting standards update, adoption date	Apr. 01, 2020
Change in accounting principle, accounting standards update, immaterial effect [true false]	true
ASU 2018-13 [Member]
Background And Basis Of Presentation [Line Items]
Change in accounting principle, accounting standards update, adopted [true false]	true
Change in accounting principle, accounting standards update, adoption date	Apr. 01, 2020
Change in accounting principle, accounting standards update, immaterial effect [true false]	true
ASU 2018-14 [Member]
Background And Basis Of Presentation [Line Items]
Change in accounting principle, accounting standards update, adopted [true false]	true
Change in accounting principle, accounting standards update, adoption date	Apr. 01, 2020
Change in accounting principle, accounting standards update, immaterial effect [true false]	true
ASU 2019-12 [Member]
Background And Basis Of Presentation [Line Items]
Change in accounting principle, accounting standards update, adopted [true false]	false
Change in accounting principle, accounting standards update, adoption date	Apr. 01, 2021

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Background and Basis of Presentation -Schedule of Impact of Change in Accounting Principle on Consolidated Statement of Operations and Consolidated Statements of Comprehensive Loss (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Non-service defined benefit income	$ (49,519)	$ (40,587)	$ (56,726)
Loss before income taxes	(448,029)	(23,635)	(332,572)
Income tax expense (benefit)	2,881	5,798	(5,426)
Net loss	$ (450,910)	$ (29,433)	$ (327,146)
Net Loss per share - basic & diluted
Basic	$ (8.55)	$ (0.58)	$ (6.58)
Diluted	$ (8.55)	$ (0.58)	$ (6.58)
Defined benefit pension plans and other postretirement benefits:
Total defined benefit pension plans and other postretirement benefits, net of taxes	$ 191,054	$ (213,825)	$ (123,260)
Total other comprehensive income	216,256	(230,437)	(114,435)
Comprehensive loss	(234,654)	$ (259,870)	$ (441,581)
Reported without Change [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Non-service defined benefit income	(43,407)
Loss before income taxes	(454,141)
Income tax expense (benefit)	2,881
Net loss	$ (457,022)
Net Loss per share - basic & diluted
Basic	$ (8.67)
Diluted	$ (8.67)
Defined benefit pension plans and other postretirement benefits:
Total defined benefit pension plans and other postretirement benefits, net of taxes	$ 197,166
Total other comprehensive income	222,368
Comprehensive loss	(234,654)
Impact of Change [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Non-service defined benefit income	(6,112)
Loss before income taxes	6,112
Net loss	$ 6,112
Net Loss per share - basic & diluted
Basic	$ 0.12
Diluted	$ 0.12
Defined benefit pension plans and other postretirement benefits:
Total defined benefit pension plans and other postretirement benefits, net of taxes	$ (6,112)
Total other comprehensive income	$ (6,112)

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Background and Basis of Presentation -Schedule of Impact of Change in Accounting Principle on Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Stockholders' deficit:
Accumulated other comprehensive loss	$ (530,192)	$ (746,448)
Accumulated deficit	(1,254,391)	(803,481)
Total stockholders' deficit	(818,853)	$ (781,264)	$ (573,313)	$ 450,534
Reported without Change [Member]
Stockholders' deficit:
Accumulated other comprehensive loss	(497,060)
Accumulated deficit	(1,287,523)
Total stockholders' deficit	(818,853)
Impact of Change [Member]
Stockholders' deficit:
Accumulated other comprehensive loss	(33,132)
Accumulated deficit	$ 33,132

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Summary of Significant Accounting Policies - Summary of Trade and Other Receivables Net (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Mar. 31, 2020
Accounting Policies [Abstract]
Total trade receivables	$ 192,888	$ 314,007
Other receivables	9,273	49,773
Total trade and other receivables	202,161	363,780
Less: Allowance for credit losses	(8,095)	(4,293)
Total trade and other receivables, net	$ 194,066	$ 359,487

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Summary of Significant Accounting Policies - Additional Information (Details) - USD ($)	1 Months Ended	3 Months Ended	12 Months Ended
	Jan. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Change In Accounting Estimate [Line Items]
Impairment of goodwill		$ 66,121,000		$ 66,121,000
Discount rate used to estimate fair value of asset group			15.00%
Impairment of long-lived assets and goodwill	$ 6,696,000		$ 252,382,000	66,121,000
Change in accounting estimate			4,796,000
Acquired contract liabilities, net		$ 92,962,000	43,888,000	92,962,000
Future amortization income, year one			22,897,000
Future amortization income, year two			3,347,000
Future amortization income, year three			2,501,000
Future amortization income, year four			2,564,000
Future amortization income, year five			1,282,000
Future amortization income, thereafter			11,296,000
Income taxes paid, net of refunds received			2,297,000	(4,005,000)	$ 4,701,000
Accounting Standards Update 2017-07
Change In Accounting Estimate [Line Items]
Adoption of ASU 2017-07 due to a change in estimate from change in accounting principles					87,241,000
Revenue Benchmark [Member]
Change In Accounting Estimate [Line Items]
Change in accounting estimate			4,796,000	12,011,000
Operating Income (Loss) [Member]
Change In Accounting Estimate [Line Items]
Change in accounting estimate			12,332,000	(22,844,000)	(68,694,000)
Change in accounting estimate included gross favorable adjustment			55,180,000	43,405,000	46,074,000
Change in accounting estimate included gross unfavorable adjustment			42,848,000	66,249,000	114,768,000
Income (Loss), Net [Member]
Change In Accounting Estimate [Line Items]
Change in accounting estimate			12,332,000	(22,844,000)	(68,694,000)
Earnings (Loss) Per Share [Member]
Change In Accounting Estimate [Line Items]
Change in accounting estimate			$ 230	$ (450)	$ (1,380)
Minimum [Member]
Change In Accounting Estimate [Line Items]
Finite-lived intangible asset, useful life			7 years
Standard trade receivable, payment terms			30 days
Maximum [Member]
Change In Accounting Estimate [Line Items]
Finite-lived intangible asset, useful life			30 years
Standard trade receivable, payment terms			120 days

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Divested Operations and Assets Held For Sale - Additional Information (Details) - USD ($) $ in Thousands	1 Months Ended						2 Months Ended	12 Months Ended
	Aug. 31, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Mar. 31, 2019	Feb. 28, 2019	Aug. 31, 2018	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Discontinued operations and assets held for sale
Gain (loss) on disposition of assets								$ (104,702)	$ (56,916)	$ (235,301)
Defined benefit plan, plan assets, amount		$ 1,598,045						1,853,962	1,598,045
Gulfstream G650 [Member]
Discontinued operations and assets held for sale
Proceeds from divestiture of business	$ 51,000
Derecognition of accrued warranties	18,157
Gain (loss) on disposition of assets	$ 819
Assets Held for Sale Composites Manufacturing Operations [Member]
Discontinued operations and assets held for sale
Impairment on the assets held for sale								$ 102,493
Fiscal 2020 Divestitures Manufacturing Operations [Member]
Discontinued operations and assets held for sale
Proceeds from divestiture of business			$ 58,000
Gain (loss) on disposition of assets				$ 10,000
Guarantor obligations, current carrying value			7,000
Gain (loss) on disposition of property plant equipment			(64,000)
Defined benefit plan, plan assets, amount			$ 55,000
Defined benefit plan, net periodic benefit cost (credit), gain (loss) due to settlement and curtailment		$ (28,000)
Machining [Member]
Discontinued operations and assets held for sale
Proceeds from divestiture of business					$ 43,000
Noncash or part noncash divestiture, amount of consideration received					10,000
Gain (loss) on disposition of business					(116,000)				$ (3,000)
Fabrications [Member]
Discontinued operations and assets held for sale
Proceeds from divestiture of business					133,000
Gain (loss) on disposition of business					54,000
NAAS [Member]
Discontinued operations and assets held for sale
Proceeds from divestiture of business					$ 18,000
Global 7500 [Member]
Discontinued operations and assets held for sale
Gain (loss) on disposition of business						$ (169,000)
TS-LA/TPI [Member]
Discontinued operations and assets held for sale
Proceeds from divestiture of business							$ 43,000
Noncash or part noncash divestiture, amount of consideration received							7,000
Gain (loss) on disposition of business							$ (17,000)

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Revenue Recognition and Contracts with Customers - Schedule of Disaggregated Net Sales Satisfied Overtime and at a Point in Time (Excluding Intercompany Sales) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Disaggregation Of Revenue [Line Items]
Amortization of acquired contract liabilities	$ 38,564	$ 75,286	$ 67,314
Net sales	1,869,719	2,900,117	$ 3,364,930
Systems & Support [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	1,041,760	1,316,275
Amortization of acquired contract liabilities	15,062	34,486
Revenues excluding intercompany sales	1,056,822	1,350,761
Systems & Support [Member] | Transferred over Time [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	464,874	578,117
Systems & Support [Member] | Transferred at Point in Time [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	576,886	738,158
Aerospace Structures [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	789,395	1,508,556
Amortization of acquired contract liabilities	23,502	40,800
Revenues excluding intercompany sales	812,897	1,549,356
Aerospace Structures [Member] | Transferred over Time [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	746,545	1,378,866
Aerospace Structures [Member] | Transferred at Point in Time [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	$ 42,850	$ 129,690

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Revenue Recognition and Contracts with Customers - Schedule of Disaggregated Net Sales by End Market (Excluding Intercompany Sales) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Disaggregation Of Revenue [Line Items]
Amortization of acquired contract liabilities	$ 38,564	$ 75,286	$ 67,314
Net sales	1,869,719	2,900,117	$ 3,364,930
Systems & Support [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	1,041,760	1,316,275
Amortization of acquired contract liabilities	15,062	34,486
Revenues excluding intercompany sales	1,056,822	1,350,761
Systems & Support [Member] | Commercial Aerospace [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	396,841	737,885
Systems & Support [Member] | Military [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	552,323	436,166
Systems & Support [Member] | Business Jets [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	36,701	61,338
Systems & Support [Member] | Regional [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	24,862	43,761
Systems & Support [Member] | Non-aviation [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	31,033	37,125
Aerospace Structures [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	789,395	1,508,556
Amortization of acquired contract liabilities	23,502	40,800
Revenues excluding intercompany sales	812,897	1,549,356
Aerospace Structures [Member] | Commercial Aerospace [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	481,845	879,690
Aerospace Structures [Member] | Military [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	137,466	116,846
Aerospace Structures [Member] | Business Jets [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	158,156	422,681
Aerospace Structures [Member] | Regional [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	11,558	89,318
Aerospace Structures [Member] | Non-aviation [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	$ 370	$ 21

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Revenue Recognition and Contracts with Customers - Summary of Contract Assets and Liabilities Balances (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenue From Contract With Customer [Abstract]
Contract assets	$ 139,937	$ 267,079
Contract liabilities	(305,116)	(386,585)
Net contract liability	(165,179)	$ (119,506)
Change in contract assets	(127,142)
Change in contract liabilities	81,469
Change in net contract liability	$ (45,673)

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Revenue Recognition and Contracts with Customers - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Contract With Customer Asset And Liability [Line Items]
Revenue recognized due to changes in estimates associated with performance obligations	$ 4,796
Change in contract assets	127,142
Contract with customer, contract assets classified as held for sale	76,821
Contract with customer, contract liability classified as held for sale	7,562
Contract with Customer, Liability, Revenue Recognized	78,725
Contract with Customer, Asset, Net, Noncurrent	5,299	$ 22,662
Contract with Customer, Liability, Noncurrent	100,737	$ 91,265
Unsatisfied performance obligations	2,273,527
Subsequent to Fiscal 2021 Divestitures [Member]
Contract With Customer Asset And Liability [Line Items]
Unsatisfied performance obligations	433,262
Gulfstream G650 [Member]
Contract With Customer Asset And Liability [Line Items]
Change in contract assets	$ 60,802

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Revenue Recognition and Contracts with Customers - Schedule of Performance Obligations that are Expected to Be Recognized in Future (Details) $ in Thousands	Mar. 31, 2021 USD ($)
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Unsatisfied performance obligations	$ 2,273,527
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-04-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Unsatisfied performance obligations	1,251,209
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2022-04-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Unsatisfied performance obligations	961,332
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2025-04-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Unsatisfied performance obligations	60,889
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2026-04-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Unsatisfied performance obligations	$ 97
Maximum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-04-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year
Maximum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2022-04-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	3 years
Maximum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2025-04-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	5 years
Minimum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2022-04-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year
Minimum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2025-04-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	4 years
Minimum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2026-04-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	5 years

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Revenue Recognition and Contracts with Customers - Schedule of Performance Obligations that are Expected to Be Recognized in Future (Details 1) $ in Thousands	Mar. 31, 2021 USD ($)
Revenue From Contract With Customer [Abstract]
Unsatisfied performance obligations	$ 2,273,527

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Inventories - Schedule of Components of Inventories (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Mar. 31, 2020
Inventory Disclosure [Abstract]
Raw materials	$ 45,211	$ 32,552
Work-in-process	277,729	312,953
Finished goods	51,221	50,011
Rotable assets	26,205	57,460
Total inventories	$ 400,366	$ 452,976

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Inventories - Additional Information (Details) $ in Thousands	12 Months Ended
	Mar. 31, 2021 USD ($)
Inventory Disclosure [Abstract]
Impairment loss on rotable inventory	$ 23,689

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Property and Equipment - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Property Plant And Equipment [Line Items]
Depreciation	$ 71,651	$ 89,857	$ 97,323
Buildings and Improvements [Member] | Minimum [Member]
Property Plant And Equipment [Line Items]
Property and equipment, useful life	15 years
Buildings and Improvements [Member] | Maximum [Member]
Property Plant And Equipment [Line Items]
Property and equipment, useful life	39 years 6 months
Machinery and Equipment [Member] | Minimum [Member]
Property Plant And Equipment [Line Items]
Property and equipment, useful life	7 years
Machinery and Equipment [Member] | Maximum [Member]
Property Plant And Equipment [Line Items]
Property and equipment, useful life	15 years
Furniture, Fixtures and Computer Equipment [Member] | Minimum [Member]
Property Plant And Equipment [Line Items]
Property and equipment, useful life	3 years
Furniture, Fixtures and Computer Equipment [Member] | Maximum [Member]
Property Plant And Equipment [Line Items]
Property and equipment, useful life	10 years

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Property and Equipment - Schedule of Net Property and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Mar. 31, 2020
Property Plant And Equipment [Abstract]
Land	$ 17,814	$ 42,438
Construction-in-process	11,368	19,231
Buildings and improvements	144,756	285,407
Machinery and equipment	594,542	701,018
Property and equipment, gross	768,480	1,048,094
Less: accumulated depreciation	557,111	629,953
Property and equipment, net	$ 211,369	$ 418,141

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Goodwill and Other Intangible Assets - Summary of the Changes in the Carrying Value of Goodwill By Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Goodwill [Line Items]
March 31, 2020		$ 513,527
Impairment of goodwill	$ (66,121)		$ (66,121)
March 31, 2021	513,527	521,638	513,527
Systems & Support [Member]
Goodwill [Line Items]
March 31, 2020		513,527	583,225
Effect of exchange rate changes		8,111	(3,577)
Impairment of goodwill			(66,121)
March 31, 2021	$ 513,527	$ 521,638	$ 513,527

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Goodwill and Other Intangible Assets - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Goodwill [Line Items]
Amortization of Intangible Assets	$ 22,551	$ 48,311	$ 52,581
Future amortization expense, 2021	11,846
Future amortization expense, 2022	11,846
Future amortization expense, 2023	11,846
Future amortization expense, 2024	11,846
Future amortization expense, 2025	11,432
Future amortization expense, Thereafter	43,639
Aerospace Structures [Member]
Goodwill [Line Items]
Goodwill impaired accumulated impairment loss	871,387	1,166,773
Systems & Support [Member]
Goodwill [Line Items]
Goodwill impaired accumulated impairment loss	66,121	66,121
Gross goodwill	$ 587,759	$ 579,649

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Goodwill and Other Intangible Assets - Schedule of Components of Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 225,548	$ 757,463
Accumulated Amortization	(123,095)	(375,495)
Net	$ 102,453	$ 381,968
Customer Relationships [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	17 years 10 months 24 days	17 years 8 months 12 days
Gross Carrying Amount	$ 170,198	$ 550,131
Accumulated Amortization	(74,253)	(276,980)
Net	$ 95,945	$ 273,151
Licensing Agreements [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	11 years 3 months 18 days	11 years 4 months 24 days
Gross Carrying Amount	$ 55,050	$ 54,676
Accumulated Amortization	(48,645)	(46,180)
Net	$ 6,405	$ 8,496
Other [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	30 years
Gross Carrying Amount	$ 300
Accumulated Amortization	(197)
Net	$ 103
Non-Compete Agreements and Other [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life		16 years 8 months 12 days
Gross Carrying Amount		$ 2,656
Accumulated Amortization		(1,208)
Net		$ 1,448
Tradenames [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life		10 years
Gross Carrying Amount		$ 150,000
Accumulated Amortization		(51,127)
Net		$ 98,873

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Accrued Expenses - Schedule of Accrued Expenses (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Mar. 31, 2020
Accrued Liabilities Current And Noncurrent [Abstract]
Accrued pension	$ 1,097	$ 753
Accrued other postretirement benefits	3,371	4,775
Accrued compensation and benefits	97,021	84,404
Accrued interest	31,036	13,252
Accrued warranties	24,492	30,079
Accrued workers' compensation	15,601	16,583
Accrued income tax	5,084	3,796
Operating lease liabilities	11,605	13,139
All other	81,853	60,622
Total accrued expenses	$ 271,160	$ 227,403

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Leases - Schedule of Components Lease Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Lessee Lease Description [Line Items]
Total lease cost	$ 38,573	$ 40,545
Cost of sales or Selling, general and administrative expense [Member]
Lessee Lease Description [Line Items]
Operating lease cost	22,976	24,539
Variable lease cost	9,344	8,382
Depreciation and amortization [Member]
Lessee Lease Description [Line Items]
Amortization of right-of-use assets	4,673	5,317
Interest expense and other [Member]
Lessee Lease Description [Line Items]
Interest on lease liability	$ 1,580	$ 2,307

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Leases - Schedule of Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows used in operating leases	$ 21,008	$ 21,430
Operating cash flows used in finance leases	1,583	2,327
Financing cash flows used in finance leases	7,774	8,370
ROU assets obtained in exchange for lease liabilities
Operating leases	6,547	3,826
Finance leases	$ 2,909	$ 1,039

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Leases - Schedule of Supplemental Balance Sheet Information Related to Leases (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Mar. 31, 2020
ASSETS
Operating lease ROU assets	$ 46,643	$ 61,461
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Assets held for sale	Other, net
Finance lease ROU assets, cost	$ 44,128	$ 39,461
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Assets held for sale	Property and equipment, net
Accumulated amortization	$ (23,344)	$ (18,650)
Finance Lease, Liability, Statement of Financial Position [Extensible List]	Assets held for sale	Property and equipment, net
Finance lease ROU assets, net	$ 20,784	$ 20,811
Total lease assets	67,427	82,272
Current liabilities:
Operating	$ 12,885	$ 13,139
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Liabilities related to assets held for sale	Accrued expenses
Finance	$ 5,972	$ 7,336
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	Liabilities related to assets held for sale	Current portion of long-term debt
Noncurrent
Operating	$ 42,385	$ 54,687
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Liabilities related to assets held for sale	Other noncurrent liabilities
Finance	$ 14,878	$ 16,597
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Liabilities related to assets held for sale	Long-term debt, less current portion
Total lease liabilities	$ 76,120	$ 91,759

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Leases - Schedule of Information Related to Lease Terms and Discount Rates (Details)	Mar. 31, 2021	Mar. 31, 2020
Leases [Abstract]
Operating leases	7 years 3 months 18 days	7 years 2 months 12 days
Finance leases	6 years 10 months 24 days	6 years 10 months 24 days
Operating leases	6.30%	6.20%
Finance leases	6.80%	5.90%

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Leases - Schedule of Maturity of Lease Liabilities (Details) $ in Thousands	Mar. 31, 2021 USD ($)
Leases [Abstract]
Operating leases, FY2022	$ 15,752
Operating leases, FY2023	10,561
Operating leases, FY2024	7,057
Operating leases, FY2025	6,339
Operating leases, FY2026	5,880
Operating leases, Thereafter	23,912
Total operating lease payments	69,501
Operating leases, Less: Imputed interest	(14,231)
Total operating lease liabilities	55,270
Finance leases, FY2022	7,436
Finance leases, FY2023	4,322
Finance leases, FY2024	3,520
Finance leases, FY2025	1,961
Finance leases, FY2026	1,305
Finance leases, Thereafter	8,656
Total finance lease payments	27,200
Finance leases, Less: Imputed interest	(6,350)
Total finance lease liabilities	20,850
Total lease payment, FY2022	23,188
Total lease payment, FY2023	14,883
Total lease payment, FY2024	10,577
Total lease payment, FY2025	8,300
Total lease payment, FY2026	7,185
Total lease payments, Thereafter	32,568
Total lease payments	96,701
Total lease payment, Less: Imputed interest	(20,581)
Total lease liabilities	$ 76,120

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Long-term Debt - Schedule of Long-term Debt Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Mar. 31, 2020
Debt Instrument [Line Items]
Less: debt issuance costs	$ (24,053)	$ (16,426)
Long-term debt	1,957,543	1,807,507
Current portion of long-term debt	5,247	7,336
Long-term debt, less current portion	1,952,296	1,800,171
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Long-term debt		400,000
Receivable Securitization Facility [Member]
Debt Instrument [Line Items]
Long-term debt	0	75,000
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Long-term debt	20,125	23,933
Senior Secured First Lien Notes Due 2024 [Member]
Debt Instrument [Line Items]
Long-term debt	700,000
Senior Notes Due 2024 [Member]
Debt Instrument [Line Items]
Long-term debt	525,000	525,000
Senior Notes Due 2022 [Member]
Debt Instrument [Line Items]
Long-term debt	236,471	300,000
Senior Notes Due 2025 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 500,000	$ 500,000

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Long-term Debt - Additional Information (Details) - USD ($)					12 Months Ended
	Aug. 17, 2020	Sep. 23, 2019	Aug. 17, 2017	Jun. 03, 2014	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Debt Instrument [Line Items]
Payments of financing costs					$ 20,716,000	$ 17,718,000	$ 1,982,000
Interest paid, including capitalized interest, operating and investing activities					116,515,000	99,438,000	$ 99,981,000
Long-term debt, maturities, repayments of principal in next twelve months					5,972,000
Long-term debt, maturities, repayments of principal in year two					239,883,000
Long-term debt, maturities, repayments of principal in year three					2,790,000
Long-term debt, maturities, repayments of principal in year four					1,226,364,000
Long-term debt, maturities, repayments of principal in year five					500,781,000
Long-term debt, maturities, repayments of principal after year five					6,531,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Payment of line of credit facility	$ 335,240,000
Long-term debt						400,000,000
Receivable Securitization Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity					75,000,000
Long-term debt					0	75,000,000
Letters of credit outstanding, amount					$ 27,763,000
Receivables securitization facility, expiration period					2022-12
Receivable Securitization Facility [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Line of credit facility, commitment fee percentage	2.50%
Line of credit facility, unused capacity, commitment fee percentage	0.60%
Receivable Securitization Facility [Member] | Minimum [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity					$ 50,000,000
Receivable Securitization Facility [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	0.75%
Senior Secured First Lien Notes Due 2024 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	8.875%
Long-term debt					$ 700,000,000
Debt instrument, principal amount	$ 700,000,000
Proceeds from loan, percentage of principal (as a percent)	100.00%
Debt instrument, interest rate, effective percentage	8.875%
Debt instrument, interest payment terms					Interest is payable semi-annually in cash in arrears on June 1 and December 1 of each year, commencing on December 1, 2020.
Debt instrument, interest payment commencing date	Dec. 01, 2020
Payments of financing costs	$ 13,000,000
Debt instrument, redemption price, percentage	100.00%
Debt instrument, redemption, description	40.00%
Debt instrument, redemption price, percentage - equity offering	108.875%
Debt instrument, redemption price, percentage - change of control	101.00%
Debt instrument repayment premium percentage	106.656%
Aggregate principal amount of Notes outstanding	$ 350,000,000
Available amount in asset sale covenants	$ 100,000,000
Senior Notes Due 2024 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage		6.25%
Long-term debt					$ 525,000,000	525,000,000
Debt instrument, principal amount		$ 525,000,000
Debt instrument, interest rate, effective percentage		6.25%
Debt instrument, interest payment terms					Interest is payable semiannually in cash in arrears on March 15 and September 15 of each year, commencing on March 15, 2020.
Payments of financing costs		$ 9,300,000
Debt instrument, redemption price, percentage		100.00%			100.00%
Debt instrument, redemption, description					40.00%
Debt instrument, redemption price, percentage - equity offering					106.25%
Debt instrument, redemption price, percentage - change of control					101.00%
Debt instrument, due date		Sep. 15, 2024
Senior Notes Due 2022 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage				5.25%
Long-term debt					$ 236,471,000	300,000,000
Debt instrument, principal amount				$ 300,000,000
Proceeds from loan, percentage of principal (as a percent)				100.00%
Debt instrument, interest rate, effective percentage				5.25%
Debt instrument, interest payment terms					Interest  is payable semiannually in cash in arrears on June 1 and December 1 of each year, commencing on December 1, 2014.
Payments of financing costs				$ 4,990,000
Debt instrument, due date				Jun. 01, 2022
Percentage of principal amount that the holder of the note may require the entity to repurchase due to a fundamental change undergone by the entity, subject to certain conditions (as a percent)					101.00%
Extinguishment of debt amount					$ 63,529,000
Asset sales redemption price, percentage of principal (as a percent)					100.00%
Senior Notes Due 2025 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage			7.75%
Long-term debt					$ 500,000,000	$ 500,000,000
Debt instrument, principal amount			$ 500,000,000
Proceeds from loan, percentage of principal (as a percent)			100.00%
Debt instrument, interest payment terms					Interest is payable semiannually in cash in arrears on February 15 and August 15 of each year, commencing on February 15, 2018.
Payments of financing costs			$ 8,779,000
Debt instrument, due date			Aug. 15, 2025
Percentage of principal amount that the holder of the note may require the entity to repurchase due to a fundamental change undergone by the entity, subject to certain conditions (as a percent)					101.00%
Asset sales redemption price, percentage of principal (as a percent)					100.00%
The maximum percentage of the principal amounts of the debt instrument which the entity may redeem (as a percent)					35.00%
The limit of the principal amount of the debt instrument which the entity may redeem (as a percent)					107.75%

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Long-term Debt - Schedule of Carrying Amounts and Estimated Fair Values of Long-term Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020
Debt Instrument [Line Items]
Long-term debt	$ 1,957,543		$ 1,807,507
Reported Value Measurement [Member]
Debt Instrument [Line Items]
Long-term debt	1,957,543	$ 1,807,507
Estimate of Fair Value Measurement [Member]
Debt Instrument [Line Items]
Long-term debt	$ 2,085,204	$ 1,559,455

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Other Noncurrent Liabilities - Schedule of Other Noncurrent Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Mar. 31, 2020
Other Liabilities Noncurrent [Abstract]
Acquired contract liabilities, net	$ 43,888	$ 92,962
Accrued warranties	9,519	31,036
Accrued workers' compensation	11,226	13,603
Noncurrent contract liabilities	100,737	91,265
Operating lease liabilities	26,060	54,687
Environmental contingencies	9,185	18,060
Income tax reserves	300	594
All other	6,463	3,962
Total other noncurrent liabilities	$ 207,378	$ 306,169

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Income Taxes - Components of Loss from Continuing Operations before Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Income Tax Examination [Line Items]
(Loss) income from continuing operations, before income taxes	$ (448,029)	$ (23,635)	$ (332,572)
Foreign [Member]
Income Tax Examination [Line Items]
(Loss) income from continuing operations, before income taxes	(1,518)	33,399	(18,336)
Domestic [Member]
Income Tax Examination [Line Items]
(Loss) income from continuing operations, before income taxes	$ (446,511)	$ (57,034)	$ (314,236)

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Income Taxes - Components of Income Tax (Benefit) Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Current Federal tax expense (benefit)		$ (654)	$ (1,253)
Current State tax expense (benefit)	$ (315)	27	431
Current Foreign tax expense (benefit)	3,372	3,602	3,335
Current income tax expense (benefit)	3,057	2,975	2,513
Deferred Federal income tax expense (benefit)		2,748	(9,076)
Deferred State income tax expense (benefit)		73	1,593
Deferred Foreign income tax expense (benefit)	(176)	2	(456)
Deferred income tax expense (benefit)	(176)	2,823	(7,939)
Income tax (benefit) expense	$ 2,881	$ 5,798	$ (5,426)

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Income Taxes - Schedule of Reconciliation of Statutory Federal Income Tax Rate to Effective Tax Rate (Details)	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Statutory federal income tax rate	21.00%	21.00%	21.00%
State and local income taxes, net of federal tax benefit	2.70%	(12.10%)	4.60%
Goodwill impairment		(37.40%)
Disposition of business			3.20%
Miscellaneous permanent items and nondeductible accruals	(0.70%)	3.90%	(1.20%)
Research and development tax credit	0.70%	30.40%	3.30%
Foreign tax credits	(0.30%)	(24.10%)	(0.70%)
Valuation allowance	(25.50%)	29.30%	(28.60%)
Tax reform and CARES Act		(12.30%)	0.40%
Global Intangible Low-Taxed Income		(20.40%)	(1.30%)
Other (including foreign rate differential and FIN 48)	1.40%	(2.80%)	0.90%
Effective income tax rate	(0.70%)	(24.50%)	1.60%

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Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Mar. 31, 2020
Income Tax Disclosure [Abstract]
Net operating loss and other credit carryforwards	$ 345,071	$ 318,341
Inventory	21,484	17,521
Accruals and reserves	34,379	40,492
Interest carryforward	62,893	38,383
Pension and other postretirement benefits	89,952	152,048
Lease right-of-use assets	6,890	11,495
Prepaid expenses and other		241
Acquired contract liabilities, net	7,504	21,771
Deferred tax assets, gross	568,173	600,292
Valuation allowance	(512,554)	(438,667)
Net deferred tax assets	55,619	161,625
Deferred revenue	22,342	38,458
Property and equipment	12,581	34,939
Goodwill and other intangible assets	21,701	80,740
Lease liabilities	5,848	14,928
Prepaid expenses and other	588
Deferred tax liabilities	63,060	169,065
Net deferred tax liabilities	$ 7,441	$ 7,440

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Income Taxes - Additional Information (Details) - USD ($)	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Income Tax Contingency [Line Items]
Valuation allowance, deferred tax asset, increase (decrease), amount	$ 73,887,000
Effective income tax rate (as a percent)	(0.70%)	(24.50%)	1.60%
Effective income tax rate reconciliation, foreign tax rate differences, amount	$ 1,244,000
Change in valuation allowance, deferred tax asset	114,283,000
Income tax holiday, aggregate dollar amount	$ 0	$ 1,932,000	$ 2,160,000
Income tax holiday, income tax benefits per share	$ 0.00	$ 0.04	$ 0.04
Deferred tax liability not recognized, amount of unrecognized deferred tax liability	$ 162,467,000
Unrecognized tax benefits	11,536,000	$ 18,965,000
Significant change in unrecognized tax benefits is reasonably possible, amount of unrecorded benefit	0
R&D Tax Credit [Member]
Income Tax Contingency [Line Items]
Effective income tax Rate reconciliation, Tax credit, amount	3,076,000
U.S Federal [Member]
Income Tax Contingency [Line Items]
Net operating loss carryforwards	659,278,000
Foreign [Member]
Income Tax Contingency [Line Items]
Net operating loss carryforwards	140,839,000
State [Member]
Income Tax Contingency [Line Items]
Net operating loss carryforwards	$ 1,427,890,000

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Income Taxes - Schedule of Reconciliation of Liability for Uncertain Tax Positions (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Beginning balance	$ 19,127	$ 19,373	$ 11,759
Adjustments for tax positions related to the current year	311	1,057	7,364
Adjustments for tax positions of prior years	(7,688)	(1,303)	250
Ending balance	$ 11,750	$ 19,127	$ 19,373

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Stockholders' Deficit - Additional Information (Details) - USD ($)		12 Months Ended
	Feb. 04, 2021	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2014
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Common stock, par value		$ 0.001	$ 0.001
Issuance of common stock - at the market offering, net of issuance costs		$ 145,383,000
Sales of common stock, net of issuance costs		$ 145,383,000
Common Stock, Voting Rights		one
Stock Repurchase Program, Number of Shares Authorized to be Repurchased		5,000,000		500,800
Stock Repurchase Program, Remaining Authorized Repurchase Amount		$ 2,277,789
Preferred Stock, Par or Stated Value Per Share		$ 0.01
Preferred Stock, Shares Authorized		250,000
Preferred Stock, Shares Outstanding		0	0
Common Stock [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Issuance of common stock - at the market offering, net of issuance costs		$ 9,000
Threshold stock percentage for rights become exercisable and entitle to purchase additional shares		5.00%
Equity Distribution Agreement [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Common stock, par value	$ 0.001
Issuance of common stock - at the market offering, net of issuance costs		$ 150,000,000
Number of shares sold		9,178,752
Sales of common stock, net of issuance costs		$ 145,383,000
Equity Distribution Agreement [Member] | Maximum [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Issuance of common stock - at the market offering, net of issuance costs	$ 150,000,000

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Stockholders' Deficit - Schedule of Changes in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Balance	$ (781,264)	$ (573,313)	$ 450,534
Total other comprehensive income (loss)	216,256	(230,437)	(114,435)
Balance	(818,853)	(781,264)	(573,313)
Currency Translation Adjustment [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Balance	(62,045)	(48,606)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	19,884
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax		(13,439)
Total other comprehensive income (loss)	19,884	(13,439)
Balance	(42,161)	(62,045)	(48,606)
Unrealized Gains and Losses on Derivative Instruments [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Balance	(4,303)	(1,130)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	5,891	(1,611)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	(573)	(1,562)
Total other comprehensive income (loss)	5,318	(3,173)
Balance	1,015	(4,303)	(1,130)
Defined Benefit Pension Plans and Other Postretirement Benefits [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Balance	(680,100)	(466,275)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	168,701	(208,835)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	22,353	(4,990)
Total other comprehensive income (loss)	191,054	(213,825)
Balance	(489,046)	(680,100)	(466,275)
Accumulated Other Comprehensive Income (Loss) [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Balance	(746,448)	(516,011)	(401,576)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	194,476	(223,885)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	21,780	(6,552)
Total other comprehensive income (loss)	216,256	(230,437)
Balance	$ (530,192)	$ (746,448)	$ (516,011)

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Loss per Share - Summary of Reconciliation between Weighted-average Common Shares Outstanding used in Calculation of Basis and Diluted Loss Per Share (Details) - shares shares in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Earnings Per Share [Abstract]
Weighted average common shares outstanding—basic	52,739	50,494	49,698
Net effect of dilutive stock options and non-vested stock	0	0	0
Weighted average common shares outstanding—diluted	52,739	50,494	49,698

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Employee Benefit Plans - Additional Information (Details) - USD ($)	1 Months Ended	12 Months Ended
	Feb. 28, 2019	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan, employer matching contribution, percent of match			6.00%
Defined contribution plan, description			The Company generally matches contributions up to 75% of the first 6% of compensation contributed by the participant.
Defined benefit plan, plan assets, contributions by employer			$ 1,665,000	$ 14,763,000	$ 13,685,000
Increase (Decrease) in Obligation, Other Postretirement Benefits			$ 99,000,000
Percentage of defined benefit plan pension plan with projected benefit obligation in excess of plan assets plan assets			10.00%
Recognition of a charge for special termination benefits	$ 4,032,000
Defined benefit plan, assumption, number of basis point sensitivity, discount rate			25.00%
Plan assets are expected to be returned			$ 0
Common Stock [Member]
Defined Benefit Plan Disclosure [Line Items]
Number of Shares contributed			2,849,002
Aggregate value of Shares contributed			$ 40,000,000
Other postretirement [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, contributions by employer			2,182,000	8,319,000
Defined benefit plan, estimated future employer contributions in next fiscal year			0
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, contributions by employer			$ 41,201,000	51,372,000
Transfer of pension assets and liabilities to buyer				55,354,000
Settlement charge				29,313,000
Curtailment charge				22,732,000
Nashville Manufacturing Operations [Member]
Defined Benefit Plan Disclosure [Line Items]
Transfer of pension assets and liabilities to buyer				55,354,000
Settlement charge				28,452,000
Curtailment charge				214,000
TAS - Grand Prairie, TX [Member]
Defined Benefit Plan Disclosure [Line Items]
Increase (Decrease) in Obligation, Other Postretirement Benefits				61,766,000
Defined benefit plan, net periodic benefit cost (credit), gain (loss) due to settlement and curtailment				23,476,000
Defined Benefit Plan, Other Cost (Credit)				11,642,000
TAS - Grand Prairie, TX [Member] | Other postretirement [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, net periodic benefit cost (credit), gain (loss) due to settlement and curtailment				41,128,000
TAS - Nashville, TN [Member]
Defined Benefit Plan Disclosure [Line Items]
Increase (Decrease) in Obligation, Other Postretirement Benefits				34,731,000
Defined benefit plan, net periodic benefit cost (credit), gain (loss) due to settlement and curtailment				8,363,000
Increase (Decrease) in Obligation, Pension Benefits				$ 4,898,000
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan, employer matching contribution, percent of match			75.00%
Maximum [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected long-term rate of return on plan assets			8.00%	8.00%	8.00%
Maximum [Member] | Pension Plan [Member] | Forecast [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected long-term rate of return on plan assets		8.00%
Minimum [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected long-term rate of return on plan assets			5.00%	5.00%	5.00%
Minimum [Member] | Pension Plan [Member] | Forecast [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected long-term rate of return on plan assets		5.00%

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Employee Benefit Plans - Schedule of Consolidated Defined Benefit Pension Plans (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation at beginning of year	$ 2,254,985	$ 2,234,734
Service cost	1,537	2,336	$ 3,292
Interest cost	64,599	68,446	79,446
Actuarial loss (gain)	83,263	138,652
Plan amendments		4,898
Curtailments		22,732
Divestitures		(55,354)
Participant contributions	164	204
Settlements		(14,579)
Special termination benefits		11,642	4,032
Benefits paid	(179,956)	(156,084)
Currency translation adjustment	5,656	(2,642)
Projected benefit obligation at end of year	2,230,248	2,254,985	2,234,734
Accumulated benefit obligation at end of year	2,228,830	2,252,126
Other postretirement [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation at beginning of year	7,150	109,455
Service cost	0	62	227
Interest cost	112	1,559	4,039
Actuarial loss (gain)	(156)	3,472
Plan amendments		(99,080)
Participant contributions		252
Benefits paid	(2,182)	(8,570)
Projected benefit obligation at end of year	4,924	7,150	$ 109,455
Accumulated benefit obligation at end of year	$ 4,924	$ 7,150
Assumptions used to determine benefit obligations at end of year
Discount rate	2.51%	3.00%
Minimum [Member] | Pension Plan [Member]
Assumptions used to determine benefit obligations at end of year
Discount rate	2.05%	2.47%
Rate of compensation increase	2.80%	3.50%
Maximum [Member] | Pension Plan [Member]
Assumptions used to determine benefit obligations at end of year
Discount rate	3.17%	3.32%
Rate of compensation increase	3.50%	4.50%

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Employee Benefit Plans - Schedule of Change in Fair Value of Plan Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Change in fair value of plan assets
Fair value of plan assets at beginning of year	$ 1,598,045
Company contributions	1,665	$ 14,763	$ 13,685
Fair value of plan assets at end of year	1,853,962	1,598,045
Reconciliation of amounts recognized on the consolidated balance sheets
Accrued benefit liability—noncurrent	(384,256)	(660,065)
Pension Plan [Member]
Change in fair value of plan assets
Fair value of plan assets at beginning of year	1,598,045	1,796,111
Actual return on plan assets	388,392	(20,869)
Settlements		(14,579)
Participant contributions	164	204
Divestitures		(55,354)
Company contributions	41,201	51,372
Benefits paid	(179,956)	(156,084)
Currency translation adjustment	6,117	(2,756)
Fair value of plan assets at end of year	1,853,963	1,598,045	$ 1,796,111
Funded status (underfunded)
Funded status	(376,285)	(656,940)
Reconciliation of amounts recognized on the consolidated balance sheets
Pension asset—noncurrent	7,515	1,503
Accrued benefit liability—current	(1,097)	(753)
Accrued benefit liability—noncurrent	(382,703)	(657,690)
Net amount recognized	(376,285)	(656,940)
Reconciliation of amounts recognized in accumulated other comprehensive income
Prior service credits	4,621	5,595
Actuarial losses (gains)	755,234	953,913
Income tax (benefits) expenses related to above items	(204,594)	(204,594)
Unamortized benefit plan costs (gains)	555,261	754,914
Other postretirement [Member]
Change in fair value of plan assets
Participant contributions		252
Company contributions	2,182	8,319
Benefits paid	(2,182)	(8,571)
Funded status (underfunded)
Funded status	(4,924)	(7,150)
Reconciliation of amounts recognized on the consolidated balance sheets
Accrued benefit liability—current	(3,372)	(4,775)
Accrued benefit liability—noncurrent	(1,552)	(2,375)
Net amount recognized	(4,924)	(7,150)
Reconciliation of amounts recognized in accumulated other comprehensive income
Prior service credits	(54,109)	(59,214)
Actuarial losses (gains)	(53,542)	(58,151)
Income tax (benefits) expenses related to above items	42,016	42,016
Unamortized benefit plan costs (gains)	$ (65,635)	$ (75,349)

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Employee Benefit Plans - Schedule of Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 1,537	$ 2,336	$ 3,292
Interest cost	64,599	68,446	79,446
Expected return on plan assets	(136,581)	(141,972)	(145,361)
Amortization of prior service credit cost	974	(874)	(3,619)
Amortization of net loss	31,248	28,288	20,151
Curtailment loss (gain)		23,690
Settlements		29,313
Special termination benefits		11,642	4,032
Total net periodic benefit (income) expense	$ (38,223)	$ 20,869	$ (42,059)
Pension Plan [Member] | Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	2.47%	2.54%	2.65%
Expected long-term rate of return on plan assets	5.00%	5.00%	5.00%
Rate of compensation increase	3.50%	3.50%	3.50%
Pension Plan [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.32%	3.88%	4.01%
Expected long-term rate of return on plan assets	8.00%	8.00%	8.00%
Rate of compensation increase	4.50%	4.50%	4.50%
Other postretirement [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0	$ 62	$ 227
Interest cost	112	1,559	4,039
Amortization of prior service credit cost	(5,105)	(4,872)	(4,655)
Amortization of net loss	(4,766)	(6,361)	(9,851)
Curtailment loss (gain)		(49,491)
Total net periodic benefit (income) expense	$ (9,759)	$ (59,103)	$ (10,240)
Discount rate	3.00%		3.93%
Other postretirement [Member] | Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate		2.68%
Other postretirement [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate		3.77%

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Employee Benefit Plans - Schedule of Estimated Future Benefit Payments from Plan Assets (Details) $ in Thousands	Mar. 31, 2021 USD ($)
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
2022	$ 192,745
2023	163,947
2024	163,676
2025	156,660
2026	154,324
2027 - 2031	705,477
Other postretirement [Member]
Defined Benefit Plan Disclosure [Line Items]
2022	3,375
2023	169
2024	161
2025	153
2026	143
2027 - 2031	$ 585

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Employee Benefit Plans - Schedule of Company's Target Asset Allocation and Actual Asset Allocations (Details)	Mar. 31, 2021	Mar. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, actual allocation, percentage	100.00%	100.00%
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, actual allocation, percentage	50.00%	42.00%
Equity Securities [Member] | Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, target allocation, percentage	40.00%
Equity Securities [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, target allocation, percentage	50.00%
Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, actual allocation, percentage	39.00%	50.00%
Fixed Income Securities [Member] | Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, target allocation, percentage	40.00%
Fixed Income Securities [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, target allocation, percentage	50.00%
Alternative Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, actual allocation, percentage	5.00%	6.00%
Alternative Investments [Member] | Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, target allocation, percentage	0.00%
Alternative Investments [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, target allocation, percentage	10.00%
Other Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, actual allocation, percentage	6.00%	2.00%
Other Investments [Member] | Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, target allocation, percentage	0.00%
Other Investments [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, target allocation, percentage	5.00%

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Employee Benefit Plans - Schedule of Fair Value of Benefit Plan Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Mar. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	$ 1,853,962	$ 1,598,045
Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	42,003	35,110
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	42,003	35,110
International Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	164,298	155,389
International Equity Securities [Member] | Fair Value, Inputs, Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	164,298	155,389
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	7,410	2
Equity Securities [Member] | Fair Value, Inputs, Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	7,410	2
Equity Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	537,813	400,131
Equity Funds [Member] | Fair Value, Inputs, Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	537,813	400,131
Equity Funds, Foreign [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	42,944	34,014
Equity Funds, Foreign [Member] | Fair Value, Inputs, Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	42,944	34,014
Other Corporate Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	12,231	23,672
Other Corporate Bonds [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	12,231	23,672
US Government Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	103,853	93,677
US Government Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	103,853	93,677
Fixed Income Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	509,760	605,487
Fixed Income Funds [Member] | Fair Value, Inputs, Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	509,760	605,487
Life Insurance Contract [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	9,813	910
Life Insurance Contract [Member] | Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	9,813	910
Investment [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	1,430,125	1,348,392
Investment [Member] | Fair Value, Inputs, Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	1,304,228	1,230,133
Investment [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	116,084	117,349
Investment [Member] | Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	9,813	910
US Equity Commingled Fund [Member] | Investment Measured at NAV [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	17,289	8,180
International Equity Commingled Fund [Member] | Investment Measured at NAV [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	158,447	67,101
US Fixed Income Commingled Fund [Member] | Investment Measured at NAV [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	59,203	73,838
International Fixed income Commingled Fund [Member] | Investment Measured at NAV [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	1,599	1,380
Private Equity Funds [Member] | Investment Measured at NAV [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	95,880	89,797
Government Securities Commingled Fund [Member] | Investment Measured at NAV [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	24,384	8,333
Other Investments [Member] | Investment Measured at NAV [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	1,549	1,534
Investment Measured At Net Asset Value
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	358,351	250,163
Accounts Receivable [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	67,378	3,292
Accounts Payable [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, amount	$ (1,892)	$ (3,802)

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Employee Benefit Plans - Schedule of Effect of Twenty Five Basis-Point Change in Discount Rates (Details) $ in Thousands	12 Months Ended
	Mar. 31, 2021 USD ($)
Pension Plan [Member]
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined benefit plan, effect of a 25 basis point increase in discount rate, obligation	$ (52,031)	[1]
Defined benefit plan, effect of a 25 basis point increase in discount rate, net periodic benefit cost	586
Defined benefit plan, effect of a 25 basis point decrease in discount rate, obligation	54,288	[1]
Defined benefit plan, effect of a 25 basis point decrease in discount rate, net periodic benefit cost	(707)
Other postretirement [Member]
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined benefit plan, effect of a 25 basis point increase in discount rate, obligation	(33)
Defined benefit plan, effect of a 25 basis point increase in discount rate, net periodic benefit cost	4
Defined benefit plan, effect of a 25 basis point decrease in discount rate, obligation	34
Defined benefit plan, effect of a 25 basis point decrease in discount rate, net periodic benefit cost	$ 4

[1] Excludes impact to plan assets due to the LDI investment approach discussed above under "Plan Assets, Investment Policy and Strategy."

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Stock Compensation Plans - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of share-based compensation granted to employees	$ 13,103	$ 13,249	$ 15,911
Share-based compensation expense	$ 12,701	$ 11,062	10,259
Available for issuance of common stock	2,019,502	1,564,791
Fair value of employee stock vested in period	$ 8,037	$ 7,052	$ 7,031
Expected future compensation expense on restricted stock net of expected forfeitures	$ 8,376
Expected to be recognized over the remaining weighted-average vesting period	1 year 6 months
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting period	3 years
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting period	3 years
Performance Restricted Stock Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award service period	3 years
Number of shares vest if threshold vesting conditions not met	0
Performance Restricted Stock Award [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of vesting of shares granted if threshold vesting conditions exceed	200.00%

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Stock Compensation Plans - Summary of Status of Non-Vested Shares/Units of Restricted Stock and Deferred Stock Units (Details)	12 Months Ended
	Mar. 31, 2021 $ / shares shares
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Shares, Non-vested restricted awards and deferred stock units at March 31, 2019 | shares	1,159,630
Shares, Granted | shares	1,154,181
Shares, Vested | shares	(396,847)
Shares, Forfeited | shares	(218,205)
Shares, Non-vested restricted awards and deferred stock units at March 31, 2020 | shares	1,698,759
Weighted- Average Grant Date Fair Value, Non-vested restricted awards and deferred stock units at March 31, 2019 | $ / shares	$ 24.40
Weighted- Average Grant Date Fair Value, Granted | $ / shares	11.35
Weighted- Average Grant Date Fair Value, Vested | $ / shares	20.25
Weighted- Average Grant Date Fair Value, Forfeited | $ / shares	17.58
Weighted- Average Grant Date Fair Value, Non-vested restricted awards and deferred stock units at March 31, 2020 | $ / shares	$ 15.46

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Restructuring Costs - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Restructuring Cost And Reserve [Line Items]
Restructuring	$ 53,224	$ 25,340	$ 31,098
Reductions in Force [Member] | Accrued Expenses [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring	19,260
Systems & Support [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring	7,871
Aerospace Structures [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring	36,879
Aerospace Structures [Member] | Reductions in Force [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring	17,737
Aerospace Structures [Member] | Facility Closures [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring	15,781
Aerospace Structures [Member] | Third-Party Consulting and Other Costs [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring	2,937
Corporate Headquarters [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring	$ 8,474

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Customer Concentration - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Concentration Risk [Line Items]
Net sales	$ 1,869,719	$ 2,900,117	$ 3,364,930
Revenue from Contract with Customer [Member] | Credit Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	10.00%
Boeing [Member] | Trade Accounts Receivable [Member] | Credit Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	23.00%	21.00%
Boeing [Member] | Net sales [Member] | Credit Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	37.00%	34.00%	31.00%
Net sales	$ 698,372	$ 983,763	$ 1,031,106
Boeing [Member] | Net sales [Member] | Credit Concentration Risk [Member] | Systems & Support [Member]
Concentration Risk [Line Items]
Net sales	225,027	254,660	243,046
Boeing [Member] | Net sales [Member] | Credit Concentration Risk [Member] | Aerospace Structures [Member]
Concentration Risk [Line Items]
Net sales	$ 473,346	$ 729,103	$ 788,061
Bombardier [Member] | Trade Accounts Receivable [Member] | Credit Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	1.00%	16.00%
Gulfstream [Member] | Net sales [Member] | Credit Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage		12.00%	11.00%
Net sales		$ 337,173	$ 361,451
Gulfstream [Member] | Net sales [Member] | Credit Concentration Risk [Member] | Minimum [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	10.00%
Gulfstream [Member] | Net sales [Member] | Credit Concentration Risk [Member] | Systems & Support [Member]
Concentration Risk [Line Items]
Net sales		3,250	3,067
Gulfstream [Member] | Net sales [Member] | Credit Concentration Risk [Member] | Aerospace Structures [Member]
Concentration Risk [Line Items]
Net sales		$ 333,924	$ 358,383

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Collective Bargaining Agreements - Additional Information (Details) - Unionized Employees Concentration Risk [Member]	12 Months Ended
	Mar. 31, 2021
Workforce Subject To Collective Bargaining Arrangements [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	19.00%
Workforce Subject To Collective Bargaining Arrangements set to Expire within One Year [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	16.00%

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Segments - Additional Information (Details) $ in Thousands	12 Months Ended
	Mar. 31, 2021 USD ($) Segment	Mar. 31, 2020 USD ($)	Mar. 31, 2019 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | Segment	2
Loss on sale of assets and businesses	$ 104,702	$ 56,916	$ 235,301
Net sales	1,869,719	2,900,117	3,364,930
Foreign Sales [Member]
Segment Reporting Information [Line Items]
Net sales	359,406	724,193	$ 960,299
Long-Lived assets in foreign countries	213,919	$ 205,243
Corporate [Member]
Segment Reporting Information [Line Items]
Loss on sale of assets and businesses	$ 104,702

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Segments - Schedule of Selected Financial Information for Each Reportable Segment and Reconciliation of EBITDAP to Operating Income (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended	12 Months Ended
	Jan. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Information [Line Items]
Net sales to external customers			$ 1,869,719	$ 2,900,117	$ 3,364,930
Segment profit and reconciliation to consolidated income before income taxes:
Adjusted EBITDAP			173,197	305,784	215,418
Reconciliation of segment profit to income (loss) before income taxes
Depreciation and amortization			(93,334)	(138,168)	(149,904)
Interest expense and other, net			(171,397)	(122,129)	(114,619)
Corporate expenses			(51,104)	(53,082)	(74,706)
Share-based compensation expense			(12,701)	(11,062)	(10,259)
Loss on sale of assets and businesses			(104,702)	(56,916)	(235,301)
Amortization of acquired contract liabilities			38,564	75,286	67,314
Non-service defined benefit income			49,519	40,587	56,726
Legal judgment gain, net				9,257
Income before income taxes			(448,029)	(23,635)	(332,572)
Total capital expenditures			25,178	39,834	47,099
Total assets		$ 2,980,333	2,450,935	2,980,333
Impairment of long-lived assets	$ (6,696)		(252,382)	(66,121)
Union represented employee incentives				(7,071)
Impairment of goodwill		(66,121)		(66,121)
Impairment of rotable inventory			(23,689)
Impairment of long-lived assets	$ (6,696)		(252,382)	(66,121)
Net sales			1,869,719	2,900,117	3,364,930
Accounting Standards Update 2017-07
Reconciliation of segment profit to income (loss) before income taxes
Loss on adoption of ASU 2017-07					(87,241)
Systems & Support [Member]
Segment Reporting Information [Line Items]
Intersegment sales (eliminated in consolidation)			3,179	6,803	15,537
Reconciliation of segment profit to income (loss) before income taxes
Amortization of acquired contract liabilities			15,062	34,486
Impairment of goodwill				(66,121)
Aerospace Structures [Member]
Segment Reporting Information [Line Items]
Intersegment sales (eliminated in consolidation)			1,474	6,531	6,948
Reconciliation of segment profit to income (loss) before income taxes
Amortization of acquired contract liabilities			23,502	40,800
Corporate & Eliminations [Member]
Segment Reporting Information [Line Items]
Net sales to external customers			(4,653)	(13,334)	(22,485)
Reconciliation of segment profit to income (loss) before income taxes
Depreciation and amortization			(3,459)	(3,374)	(3,100)
Total capital expenditures			1,030	1,502	784
Total assets		481,162	536,003	481,162
Net sales			(4,653)	(13,334)	(22,485)
Operating Segments [Member] | Systems & Support [Member]
Segment Reporting Information [Line Items]
Net sales to external customers			1,056,822	1,350,761	1,309,474
Segment profit and reconciliation to consolidated income before income taxes:
Adjusted EBITDAP			155,693	205,352	202,346
Reconciliation of segment profit to income (loss) before income taxes
Depreciation and amortization			(33,549)	(32,376)	(35,373)
Total capital expenditures			15,239	17,141	15,734
Total assets		1,478,679	1,469,593	1,478,679
Net sales			1,056,822	1,350,761	1,309,474
Operating Segments [Member] | Aerospace Structures [Member]
Segment Reporting Information [Line Items]
Net sales to external customers			812,897	1,549,356	2,055,456
Segment profit and reconciliation to consolidated income before income taxes:
Adjusted EBITDAP			17,504	100,432	13,072
Reconciliation of segment profit to income (loss) before income taxes
Depreciation and amortization			(56,326)	(102,418)	(111,431)
Total capital expenditures			8,909	21,191	30,581
Total assets		$ 1,020,492	445,339	1,020,492
Net sales			$ 812,897	$ 1,549,356	$ 2,055,456

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Subsequent Events - Additional Information (Details) - USD ($) $ in Thousands	May 18, 2021	Aug. 17, 2020	Mar. 31, 2021	Mar. 31, 2020
Senior Secured First Lien Notes Due 2024 [Member]
Subsequent Event [Line Items]
Debt instrument, redemption price, percentage		100.00%
Long-term debt			$ 700,000
Senior Secured First Lien Notes Due 2024 [Member] | Subsequent Events [Member]
Subsequent Event [Line Items]
Redemption of aggregate principal amount	$ 112,500
Debt instrument, redemption price, percentage	106.656%
Long-term debt	$ 587,500
Senior Notes Due 2022 [Member]
Subsequent Event [Line Items]
Long-term debt			236,471	$ 300,000
Redemption of aggregate principal amount			$ 236,471
Debt instrument, redemption price, percentage			100.00%
Assets Held for Sale Composites Manufacturing Operations [Member] | Subsequent Events [Member]
Subsequent Event [Line Items]
Proceeds from divestiture of business	155,000
Assets Held for Sale Composites Manufacturing Operations [Member] | Subsequent Events [Member] | Minimum [Member]
Subsequent Event [Line Items]
Loss due to curtailment	10,000
Assets Held for Sale Composites Manufacturing Operations [Member] | Subsequent Events [Member] | Maximum [Member]
Subsequent Event [Line Items]
Loss due to curtailment	20,000
Assets Held for Sale Composites Manufacturing Operations [Member] | Senior Secured First Lien Notes Due 2024 [Member] | Subsequent Events [Member]
Subsequent Event [Line Items]
Net proceeds used to redeem aggregate principal amount of first lien note	$ 120,000

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Schedule II Valuation and Qualifying Accounts - Schedule of Valuation and Qualifying Accounts (Details) - Deferred Tax Assets [Member] - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Valuation And Qualifying Accounts Disclosure [Line Items]
Balance at beginning of year	$ 438,667	$ 399,013	$ 146,770
Additions charged to (income) expense	114,283	(3,474)	93,311
Other	15,223	43,128	158,932
Balance at end of year	$ 568,173	$ 438,667	$ 399,013

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Schedule II Valuation and Qualifying Accounts - Schedule of Valuation and Qualifying Accounts - Additional Information (Details)	12 Months Ended
	Mar. 31, 2019 USD ($)
ASC 606 [Member]
Valuation And Qualifying Accounts Disclosure [Line Items]
Adjustments relate to changes in defined benefit pension plan and other postretirement benefit plan obligations	$ 132,000