10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D. C. 20549

 __________________________________________________ 

FORM 10-Q

 __________________________________________________ 

(Mark One)

ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2019.

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. 001-34658

BWX TECHNOLOGIES, INC.

(Exact name of registrant as specified in its charter)

  __________________________________________________ 

DELAWARE	80-0558025
(State of Incorporation or Organization)	(I.R.S. Employer Identification No.)
800 MAIN STREET, 4TH FLOOR
LYNCHBURG, VIRGINIA	24504
(Address of Principal Executive Offices)	(Zip Code)

Registrant's Telephone Number, Including Area Code: (980) 365-4300

  __________________________________________________ 

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  ý    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 (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes  ý    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, 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 Exchange Act.

Large accelerated filer	ý	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 is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  ý

The number of shares of the registrant's common stock outstanding at April 29, 2019 was 95,149,979.

BWX TECHNOLOGIES, INC.

INDEX - FORM 10-Q

	PAGE
PART I - FINANCIAL INFORMATION
Item 1 – Condensed Consolidated Financial Statements	2
Condensed Consolidated Balance Sheets
March 31, 2019 and December 31, 2018 (Unaudited)	2
Condensed Consolidated Statements of Income
Three Months Ended March 31, 2019 and 2018 (Unaudited)	4
Condensed Consolidated Statements of Comprehensive Income
Three Months Ended March 31, 2019 and 2018 (Unaudited)	5
Condensed Consolidated Statements of Stockholders' Equity
Three Months Ended March 31, 2019 and 2018 (Unaudited)	6
Condensed Consolidated Statements of Cash Flows
Three Months Ended March 31, 2019 and 2018 (Unaudited)	7
Notes to Condensed Consolidated Financial Statements	8
Item 2 – Management's Discussion and Analysis of Financial Condition and Results of Operations	20
Item 3 – Quantitative and Qualitative Disclosures About Market Risk	28
Item 4 – Controls and Procedures	28
PART II - OTHER INFORMATION
Item 1 – Legal Proceedings	29
Item 1A – Risk Factors	29
Item 2 – Unregistered Sales of Equity Securities and Use of Proceeds	29
Item 6 – Exhibits	30
SIGNATURES	31

1

PART I

FINANCIAL INFORMATION

Item 1. CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

BWX TECHNOLOGIES, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

ASSETS

	March 31, 2019		December 31, 2018
	(Unaudited) (In thousands)
Current Assets:
Cash and cash equivalents	$	22,976	$	29,871
Restricted cash and cash equivalents	4,024		3,834
Investments	3,601		3,597
Accounts receivable – trade, net	65,255		71,574
Accounts receivable – other	12,038		13,374
Retainages	72,000		57,885
Contracts in progress	351,953		318,454
Other current assets	45,717		43,859
Total Current Assets	577,564		542,448
Property, Plant and Equipment	1,150,110		1,132,392
Less accumulated depreciation	696,095		693,153
Net Property, Plant and Equipment	454,015		439,239
Investments	8,598		7,382
Goodwill	275,604		274,082
Deferred Income Taxes	61,154		63,908
Investments in Unconsolidated Affiliates	65,320		63,746
Intangible Assets	194,116		228,676
Other Assets	80,415		35,615
TOTAL	$	1,716,786	$	1,655,096

See accompanying notes to condensed consolidated financial statements.

2

BWX TECHNOLOGIES, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

LIABILITIES AND STOCKHOLDERS' EQUITY

	March 31, 2019			December 31, 2018
	(Unaudited) (In thousands, except share and per share amounts)
Current Liabilities:
Current maturities of long-term debt	$	14,383		$	14,227
Accounts payable	98,455			114,751
Accrued employee benefits	56,342			77,386
Accrued liabilities – other	58,032			62,163
Advance billings on contracts	88,117			98,477
Accrued warranty expense	10,431			10,344
Total Current Liabilities	325,760			377,348
Long-Term Debt	856,005			753,617
Accumulated Postretirement Benefit Obligation	19,223			19,236
Environmental Liabilities	87,972			86,372
Pension Liability	169,939			173,469
Other Liabilities	15,013			9,353
Commitments and Contingencies (Note 5)
Stockholders' Equity:
Common stock, par value $0.01 per share, authorized 325,000,000 shares; issued 126,379,796 and 125,871,866 shares at March 31, 2019 and December 31, 2018, respectively	1,264			1,259
Preferred stock, par value $0.01 per share, authorized 75,000,000 shares; No shares issued	—			—
Capital in excess of par value	119,525			115,725
Retained earnings	1,198,198			1,166,762
Treasury stock at cost, 31,243,844 and 30,625,074 shares at March 31, 2019 and December 31, 2018, respectively	(1,066,822		)	(1,037,795		)
Accumulated other comprehensive income	(9,316		)	(10,289		)
Stockholders' Equity – BWX Technologies, Inc.	242,849			235,662
Noncontrolling interest	25			39
Total Stockholders' Equity	242,874			235,701
TOTAL	$	1,716,786		$	1,655,096

See accompanying notes to condensed consolidated financial statements.

3

BWX TECHNOLOGIES, INC.

CONDENSED CONSOLIDATED STATEMENTS OF INCOME

	Three Months Ended March 31,
	2019			2018
	(Unaudited) (In thousands, except share and per share amounts)
Revenues	$	416,454		$	457,463
Costs and Expenses:
Cost of operations	303,635			327,364
Research and development costs	5,174			3,607
Losses (gains) on asset disposals and impairments, net	—			(8		)
Selling, general and administrative expenses	51,683			53,762
Total Costs and Expenses	360,492			384,725
Equity in Income of Investees	7,682			7,150
Operating Income	63,644			79,888
Other Income (Expense):
Interest income	415			778
Interest expense	(8,703		)	(3,560		)
Other – net	7,521			7,910
Total Other Income (Expense)	(767		)	5,128
Income before Provision for Income Taxes	62,877			85,016
Provision for Income Taxes	13,767			18,603
Net Income	$	49,110		$	66,413
Net (Income) Loss Attributable to Noncontrolling Interest	(132		)	28
Net Income Attributable to BWX Technologies, Inc.	$	48,978		$	66,441
Earnings per Common Share:
Basic:
Net Income Attributable to BWX Technologies, Inc.	$	0.51		$	0.67
Diluted:
Net Income Attributable to BWX Technologies, Inc.	$	0.51		$	0.66
Shares used in the computation of earnings per share (Note 9):
Basic	95,255,109			99,526,187
Diluted	95,821,354			100,512,287

See accompanying notes to condensed consolidated financial statements.

4

BWX TECHNOLOGIES, INC.

CONDENSED CONSOLIDATED STATEMENTS OF

COMPREHENSIVE INCOME

	Three Months Ended March 31,
	2019			2018
	(Unaudited) (In thousands)
Net Income	$	49,110		$	66,413
Other Comprehensive Income (Loss):
Currency translation adjustments	943			(3,124		)
Derivative financial instruments:
Unrealized (losses) gains arising during the period, net of tax benefit (provision) of $164 and $(59), respectively	(441		)	173
Reclassification adjustment for gains included in net income, net of tax provision of $49 and $30, respectively	(141		)	(79		)
Amortization of benefit plan costs, net of tax benefit of $(136) and $(183), respectively	511			322
Investments:
Unrealized gains (losses) arising during the period, net of tax provision of $(7) and $0, respectively	24			(66		)
Other Comprehensive Income (Loss)	896			(2,774		)
Total Comprehensive Income	50,006			63,639
Comprehensive Income Attributable to Noncontrolling Interest	(132		)	28
Comprehensive Income Attributable to BWX Technologies, Inc.	$	49,874		$	63,667

See accompanying notes to condensed consolidated financial statements.

5

BWX TECHNOLOGIES, INC.

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY

	Common Stock			Capital In Excess of Par Value					Accumulated Other Comprehensive Income (Loss)												Total Stockholders' Equity
	Shares	Par Value				Retained Earnings						Treasury Stock			Stockholders' Equity			Noncontrolling Interest
		(In thousands, except share and per share amounts)
Balance December 31, 2018	125,871,866	$	1,259	$	115,725	$	1,166,762		$	(10,289	)	$	(1,037,795	)	$	235,662		$	39		$	235,701
Recently adopted accounting standards	—	—		—		(1,219		)	77			—			(1,142		)	—			(1,142		)
Net income	—	—		—		48,978			—			—			48,978			132			49,110
Dividends declared ($0.17 per share)	—	—		—		(16,323		)	—			—			(16,323		)	—			(16,323		)
Currency translation adjustments	—	—		—		—			943			—			943			—			943
Derivative financial instruments	—	—		—		—			(582		)	—			(582		)	—			(582		)
Defined benefit obligations	—	—		—		—			511			—			511			—			511
Available-for-sale investments	—	—		—		—			24			—			24			—			24
Exercises of stock options	58,655	1		1,275		—			—			—			1,276			—			1,276
Shares placed in treasury	—	—		—		—			—			(29,027		)	(29,027		)	—			(29,027		)
Stock-based compensation charges	449,275	4		2,525		—			—			—			2,529			—			2,529
Distributions to noncontrolling interests	—	—		—		—			—			—			—			(146		)	(146		)
Balance March 31, 2019 (unaudited)	126,379,796	$	1,264	$	119,525	$	1,198,198		$	(9,316	)	$	(1,066,822	)	$	242,849		$	25		$	242,874
Balance December 31, 2017	125,381,591	$	1,254	$	98,843	$	990,652		$	9,454		$	(814,809	)	$	285,394		$	363		$	285,757
Recently adopted accounting standards	—	—		—		13,311			(3,385		)	—			9,926			—			9,926
Net income	—	—		—		66,441			—			—			66,441			(28		)	66,413
Dividends declared ($0.16 per share)	—	—		—		(16,174		)	—			—			(16,174		)	—			(16,174		)
Currency translation adjustments	—	—		—		—			(3,124		)	—			(3,124		)	—			(3,124		)
Derivative financial instruments	—	—		—		—			94			—			94			—			94
Defined benefit obligations	—	—		—		—			322			—			322			—			322
Available-for-sale investments	—	—		—		—			(66		)	—			(66		)	—			(66		)
Exercises of stock options	159,126	1		3,806		—			—			—			3,807			—			3,807
Shares placed in treasury	—	—		—		—			—			(5,940		)	(5,940		)	—			(5,940		)
Stock-based compensation charges	181,317	2		4,459		—			—			—			4,461			—			4,461
Distributions to noncontrolling interests	—	—		—		—			—			—			—			(226		)	(226		)
Balance March 31, 2018 (unaudited)	125,722,034	$	1,257	$	107,108	$	1,054,230		$	3,295		$	(820,749	)	$	345,141		$	109		$	345,250

See accompanying notes to condensed consolidated financial statements.

6

BWX TECHNOLOGIES, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

	Three Months Ended March 31,
	2019			2018
	(Unaudited) (In thousands)
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$	49,110		$	66,413
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	15,122			14,061
Income of investees, net of dividends	(2,960		)	(2,299		)
Recognition of losses for pension and postretirement plans	647			505
Stock-based compensation expense	2,529			4,461
Changes in assets and liabilities:
Accounts receivable	5,812			27,387
Accounts payable	1,612			10,528
Retainages	(13,949		)	(10,444		)
Contracts in progress and advance billings on contracts	(43,735		)	(74,153		)
Income taxes	7,559			(5,502		)
Accrued and other current liabilities	(10,748		)	364
Pension liabilities, accrued postretirement benefit obligations and employee benefits	(25,876		)	(48,929		)
Other, net	(2,846		)	(997		)
NET CASH USED IN OPERATING ACTIVITIES	(17,723		)	(18,605		)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(44,519		)	(17,634		)
Purchases of securities	(1,786		)	(1,033		)
Sales and maturities of securities	1,800			2,948
Other, net	—			8
NET CASH USED IN INVESTING ACTIVITIES	(44,505		)	(15,711		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings of long-term debt	212,500			—
Repayments of long-term debt	(113,457		)	(6,951		)
Repurchases of common shares	(20,000		)	—
Dividends paid to common shareholders	(16,797		)	(15,947		)
Exercises of stock options	823			2,525
Cash paid for shares withheld to satisfy employee taxes	(8,574		)	(4,657		)
Other	943			(226		)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	55,438			(25,256		)
EFFECTS OF EXCHANGE RATE CHANGES ON CASH	104			(2,236		)
TOTAL DECREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AND CASH EQUIVALENTS	(6,686		)	(61,808		)
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	36,408			213,144
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AND CASH EQUIVALENTS AT END OF PERIOD	$	29,722		$	151,336
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid during the period for:
Interest	$	14,767		$	3,463
Income taxes (net of refunds)	$	6,191		$	24,370
SCHEDULE OF NON-CASH INVESTING ACTIVITY:
Accrued capital expenditures included in accounts payable	$	11,249		$	4,735

See accompanying notes to condensed consolidated financial statements.

7

BWX TECHNOLOGIES, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

MARCH 31, 2019

(UNAUDITED)

NOTE 1 – BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES

We have presented the condensed consolidated financial statements of BWX Technologies, Inc. ("BWXT" or the "Company") in U.S. dollars in accordance with the interim reporting requirements of Form 10-Q, Rule 10-01 of Regulation S-X and accounting principles generally accepted in the United States ("GAAP"). Certain financial information and disclosures normally included in our financial statements prepared annually in accordance with GAAP have been condensed or omitted. Readers of these financial statements should, therefore, refer to the consolidated financial statements and notes in our annual report on Form 10-K for the year ended December 31, 2018 (our "2018 10-K"). We have included all adjustments, in the opinion of management, consisting only of normal recurring adjustments, necessary for a fair presentation.

We use the equity method to account for investments in entities that we do not control, but over which we have the ability to exercise significant influence. We generally refer to these entities as "joint ventures." We have eliminated all intercompany transactions and accounts. We have reclassified certain amounts previously reported to conform to the presentation at March 31, 2019 and for the three months ended March 31, 2019 primarily related to the adoption of new accounting standards. We present the notes to our condensed consolidated financial statements on the basis of continuing operations, unless otherwise stated.

Unless the context otherwise indicates, "we," "us" and "our" mean BWXT and its consolidated subsidiaries.

Reportable Segments

We operate in three reportable segments: Nuclear Operations Group, Nuclear Power Group and Nuclear Services Group. Our reportable segments are further described as follows:

• Our Nuclear Operations Group segment manufactures naval nuclear reactors for the Naval Nuclear Propulsion Program for use in submarines and aircraft carriers. Through this segment, we own and operate manufacturing facilities located in Lynchburg, Virginia; Barberton, Ohio; Mount Vernon, Indiana; Euclid, Ohio; and Erwin, Tennessee. The Lynchburg operations fabricate fuel-bearing precision components that range in weight from a few grams to hundreds of tons. In-house capabilities also include wet chemistry uranium processing, advanced heat treatment to optimize component material properties and a controlled, clean-room environment with the capacity to assemble railcar-size components. The Barberton and Mount Vernon locations specialize in the design and manufacture of heavy components inclusive of development and fabrication activities for submarine missile launch tubes. The Euclid facility fabricates electro-mechanical equipment and performs design, manufacturing, inspection, assembly and testing activities. Fuel for the naval nuclear reactors is provided by Nuclear Fuel Services, Inc. ("NFS"), one of our wholly owned subsidiaries. Located in Erwin, NFS also downblends Cold War-era government stockpiles of high-enriched uranium into material suitable for further processing into commercial nuclear reactor fuel.

• Our Nuclear Power Group segment fabricates commercial nuclear steam generators, nuclear fuel, fuel handling systems, pressure vessels, reactor components, heat exchangers, tooling delivery systems and other auxiliary equipment, including containers for the storage of spent nuclear fuel and other high-level waste, for nuclear utility customers. BWXT has supplied the nuclear industry with more than 1,300 large, heavy components worldwide and is the only commercial heavy nuclear component manufacturer in North America. This segment also provides specialized engineering services that include structural component design, 3-D thermal-hydraulic engineering analysis, weld and robotic process development, electrical and controls engineering and metallurgy and materials engineering. In addition, this segment offers in-plant inspection, maintenance and modification services for nuclear steam generators, heat exchangers, reactors, fuel handling systems and balance of plant equipment, as well as specialized non-destructive examination and tooling/repair solutions. This segment is also a leading global manufacturer and supplier of critical medical radioisotopes and radiopharmaceuticals for research, diagnostic and therapeutic uses. See Note 2 for information about a recent acquisition related to this segment.

• Our Nuclear Services Group segment provides various services to the U.S. Government and the commercial nuclear industry. Services provided to the U.S. Government include nuclear materials management and operation, environmental management and administrative and operating services for various U.S. Government-owned facilities. These services are provided to the U.S. Department of Energy ("DOE"), including the National Nuclear Security Administration ("NNSA"), the Office of Nuclear Energy, the Office of Science and the Office of Environmental

8

Management, and NASA. Through this segment we deliver services and management solutions to nuclear and high-consequence operations. A significant portion of this segment's operations are conducted through joint ventures.

Our Nuclear Services Group segment is also engaged in inspection and maintenance services for the commercial nuclear industry primarily in the U.S. These services include steam generator, heat exchanger and balance of plant inspection and servicing as well as high pressure water lancing, non-destructive examination and the development of customized tooling solutions. This segment also offers complete advanced nuclear fuel and reactor design and engineering, licensing and manufacturing services for new advanced nuclear reactors and other nuclear technologies.

See Note 8 for financial information about our segments. Operating results for the three months ended March 31, 2019 are not necessarily indicative of the results that may be expected for the year ending December 31, 2019. For further information, refer to the consolidated financial statements and notes included in our 2018 10-K.

Recently Adopted Accounting Standards

In February 2016, the FASB issued an update to the Topic Leases, which supersedes the lease reporting requirements in Topic Leases (previously "FAS 13"). This update requires that a lessee recognize on its balance sheets the assets and liabilities for all leases with lease terms of more than 12 months, along with additional qualitative and quantitative disclosures. We adopted this update on January 1, 2019 using the modified retrospective method, which resulted in the recognition of right-of-use assets totaling $45.1 million and lease liabilities totaling $11.9 million. The difference between the right-of-use assets and lease liabilities of $33.2 million was primarily the result of reclassifications of favorable leases related to recent acquisitions from Intangible Assets. In addition, we elected the package of practical expedients permitted under the transition guidance, which allowed us to carry forward our historical lease classifications, among other things. The adoption of the provisions in this update did not have an impact on our condensed consolidated statements of income or cash flows.

Contracts and Revenue Recognition

We generally recognize contract revenues and related costs over time for individual performance obligations based on a cost-to-cost method in accordance with Financial Accounting Standards Board ("FASB") Topic Revenue from Contracts with Customers. We recognize estimated contract revenue and resulting income based on the measurement of the extent of progress toward completion as a percentage of the total project. Certain costs may be excluded from the cost-to-cost method of measuring progress, such as significant costs for uninstalled materials, if such costs do not depict our performance in transferring control of goods or services to the customer. We review contract price and cost estimates periodically as the work progresses and reflect adjustments proportionate to the percentage-of-completion in income in the period when those estimates are revised. Certain of our contracts recognize revenue at a point in time, and revenue on these contracts is recognized when control transfers to the customer. The majority of our revenue that is recognized at a point in time is related to parts and certain medical radioisotopes and radiopharmaceuticals in our Nuclear Power Group segment. For all contracts, if a current estimate of total contract cost indicates a loss on a contract, the projected loss is recognized in full when determined.

On January 1, 2019, certain of our joint ventures within our Nuclear Services Group segment adopted the provisions of FASB Topic Revenue from Contracts with Customers. This resulted in a decrease to Investments in Unconsolidated Affiliates of $1.1 million with an offsetting decrease to Retained earnings on our condensed consolidated balance sheet.

Accumulated Other Comprehensive Income

The components of Accumulated other comprehensive income included in Stockholders' Equity are as follows:

	March 31, 2019			December 31, 2018
	(In thousands)
Currency translation adjustments	$	4,449		$	3,506
Net unrealized gain on derivative financial instruments	180			685
Unrecognized prior service cost on benefit obligations	(13,884		)	(14,395		)
Net unrealized gain (loss) on available-for-sale investments	(61		)	(85		)
Accumulated other comprehensive income	$	(9,316	)	$	(10,289	)

Upon adopting the FASB update to the Topic Derivatives, we reclassified $0.1 million from Retained earnings to Accumulated other comprehensive income on January 1, 2019.

9

The amounts reclassified out of Accumulated other comprehensive income by component and the affected condensed consolidated statements of income line items are as follows:

	Three Months Ended March 31,
	2019			2018
Accumulated Other Comprehensive Income (Loss) Component Recognized	(In thousands)						Line Item Presented
Realized gain (loss) on derivative financial instruments	$	(12	)	$	(11	)	Revenues
	202			120			Cost of operations
	190			109			Total before tax
	(49		)	(30		)	Provision for Income Taxes
	$	141		$	79		Net Income
Amortization of prior service cost on benefit obligations	$	(647	)	$	(505	)	Other – net
	136			183			Provision for Income Taxes
	$	(511	)	$	(322	)	Net Income
Total reclassification for the period	$	(370	)	$	(243	)

Inventories

At March 31, 2019 and December 31, 2018, Other current assets included inventories totaling $15.2 million and $16.0 million, respectively, consisting entirely of raw materials and supplies.

Restricted Cash and Cash Equivalents

At March 31, 2019, we had restricted cash and cash equivalents totaling $6.7 million, $2.7 million of which was held for future decommissioning of facilities (which is included in Other Assets on our condensed consolidated balance sheets) and $4.0 million of which was held to meet reinsurance reserve requirements of our captive insurer.

The following table provides a reconciliation of cash and cash equivalents and restricted cash and cash equivalents on our condensed consolidated balance sheets to the totals presented on our condensed consolidated statement of cash flows:

	March 31, 2019		December 31, 2018
	(In thousands)
Cash and cash equivalents	$	22,976	$	29,871
Restricted cash and cash equivalents	4,024		3,834
Restricted cash and cash equivalents included in Other Assets	2,722		2,703
Total cash and cash equivalents and restricted cash and cash equivalents as presented on our condensed consolidated statement of cash flows	$	29,722	$	36,408

Leases

We lease certain manufacturing facilities, office space and equipment under operating leases with terms of one to 20 years. Certain of the leases include options to renew for periods of one to 10 years. We include lease options in our determination of the right-of-use asset and lease liability if it is reasonably certain that we will exercise one or more of the options. Leases with initial terms of 12 months or less are excluded from our right-of-use assets and lease liabilities. Our right-of-use assets are included in Other Assets on our condensed consolidated balance sheet. Our current lease liabilities are included in Accrued liabilities – other, and our noncurrent lease liabilities are included in Other Liabilities on our condensed consolidated balance sheet. We use discount rates based on our incremental borrowing rate as most of our leases do not provide an implicit rate that can be readily determined.

10

During the three months ended March 31, 2019, we recognized lease expense of $2.1 million and paid cash of $1.7 million for our operating leases. At March 31, 2019, our weighted-average remaining lease term was 4.0 years, and for the purpose of measuring the present value of our lease liabilities, the weighted-average discount rate was 5.03%. The maturities of our lease liabilities at March 31, 2019 were as follows (amounts in thousands):

2019	$	4,354
2020	2,680
2021	1,974
2022	1,221
2023	513
2024	142
Thereafter	1,102
Total lease payments	$	11,986
Less: interest	(1,220		)
Present value of lease liabilities (1)	$	10,766

(1) Includes current lease liabilities of $4.9 million.

At March 31, 2019, our right-of-use assets totaled $44.1 million. The difference between the right-of-use assets and lease liabilities was primarily the result of reclassifications of favorable leases related to recent acquisitions from Intangible Assets.

Future minimum payments required under operating leases that have initial or remaining noncancellable lease terms in excess of one year at December 31, 2018 were as follows (amounts in thousands):

2019	$	5,650
2020	$	2,655
2021	$	1,969
2022	$	1,216
2023	$	511
Thereafter	$	1,231

Derivative Financial Instruments

Our operations give rise to exposure to market risks from changes in foreign currency exchange ("FX") rates. We use derivative financial instruments, primarily FX forward contracts, to reduce the impact of changes in FX rates on our operating results. We use these instruments to hedge our exposure associated with revenues or costs on our long-term contracts and other transactions that are denominated in currencies other than our operating entities' functional currencies. We do not hold or issue derivative financial instruments for trading or other speculative purposes.

We enter into derivative financial instruments primarily as hedges of certain firm purchase and sale commitments denominated in foreign currencies. We record these contracts at fair value on our condensed consolidated balance sheets. Based on the hedge designation at the inception of the contract, the related gains and losses on these contracts are deferred in stockholders' equity as a component of Accumulated other comprehensive income until the hedged item is recognized in earnings. The gain or loss on a derivative instrument not designated as a hedging instrument is immediately recognized in earnings. Gains and losses on derivative financial instruments that require immediate recognition are included as a component of Other – net on our condensed consolidated statements of income.

We have designated the majority of our FX forward contracts that qualify for hedge accounting as cash flow hedges. The hedged risk is the risk of changes in functional-currency-equivalent cash flows attributable to changes in FX spot rates of forecasted transactions primarily related to long-term contracts. We exclude from our assessment of effectiveness the portion of the fair value of the FX forward contracts attributable to the difference between FX spot rates and FX forward rates. At March 31, 2019, we had deferred approximately $0.2 million of net gains on these derivative financial instruments in Accumulated other comprehensive income. Assuming market conditions continue, we expect to recognize the majority of this amount in the next 12 months.

At March 31, 2019, our derivative financial instruments consisted of FX forward contracts with a total notional value of $73.5 million with maturities extending to December 2021. These instruments consist primarily of FX forward contracts to

11

purchase or sell Canadian dollars. We are exposed to credit-related losses in the event of non-performance by counterparties to derivative financial instruments. We attempt to mitigate this risk by using major financial institutions with high credit ratings. Our counterparties to derivative financial instruments have the benefit of the same collateral arrangements and covenants as described under our credit facility.

Provision for Income Taxes

We are subject to federal income tax in the U.S. and Canada as well as income tax within multiple U.S. state jurisdictions. We provide for income taxes based on the enacted tax laws and rates in the jurisdictions in which we conduct our operations. These jurisdictions may have regimes of taxation that vary with respect to nominal rates and with respect to the basis on which these rates are applied. This variation, along with the changes in our mix of income within these jurisdictions, can contribute to shifts in our effective tax rate from period to period.

Our effective tax rate for the three months ended March 31, 2019 was 21.9% as compared to 21.9% for the three months ended March 31, 2018. The effective tax rates for the three months ended March 31, 2019 and 2018 were slightly higher than the U.S. corporate income tax rate of 21% primarily due to state income taxes within the U.S. and the unfavorable rate differential associated with our Canadian earnings. Our effective tax rates for the three months ended March 31, 2019 and 2018 were favorably impacted by benefits recognized for excess tax benefits related to employee share-based payments of $1.7 million and $2.2 million, respectively.

As of March 31, 2019, we had gross unrecognized tax benefits of $0.3 million (exclusive of interest and federal and state benefits), all of which would reduce our effective tax rate if recognized.

NOTE 2 – ACQUISITIONS

Acquisition of Sotera Health LLC's Nordion Medical Isotope Business

On July 30, 2018, our subsidiary BWXT ITG Canada, Inc. acquired Sotera Health's Nordion medical isotope business (the "MI business") for $213.0 million. The MI business is a leading global manufacturer and supplier of critical medical radioisotopes and radiopharmaceuticals for research, diagnostic and therapeutic uses. Its customers include radiopharmaceutical companies, hospitals and radiopharmacies. Its primary operations are located in Kanata, Ontario, Canada and Vancouver, British Columbia, Canada. This acquisition added approximately 150 highly trained and experienced personnel, two specialized production centers and a uniquely licensed infrastructure. In addition to the growing portfolio of radioisotope products we acquired, the MI business will be the platform from which we plan to launch our Molybdenum-99 product line and a number of future radioisotope-based imaging, diagnostic and therapeutic products. This business is reported as part of our Nuclear Power Group segment.

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The purchase price of the acquisition has been allocated among assets acquired and liabilities assumed at fair value, with the excess purchase price recorded as goodwill. Our purchase price allocation is as follows (amounts in thousands):

Accounts receivable – trade	$	7,732
Contracts in progress	51
Inventories	2,113
Other current assets	97
Property, plant and equipment	12,948
Goodwill	62,495
Deferred Income Taxes	3,006
Intangible assets	139,257
Total assets acquired	$	227,699
Accounts payable	$	654
Accrued employee benefits	579
Accrued liabilities – other	1,665
Environmental liabilities	2,062
Pension liability	9,746
Total liabilities assumed	$	14,706
Net assets acquired	$	212,993
Amount of tax deductible goodwill	$	53,693

The intangible assets included above consist of the following (dollar amounts in thousands):

	Amount		Amortization Period
Technical support agreement	$	67,500	23 years
Unpatented technology	$	33,000	23 years
Favorable operating leases	$	28,157	13-30 years
Customer relationship	$	10,600	23 years

The following unaudited pro forma financial information presents our results of operations for the three months ended March 31, 2018 as if the acquisition of the MI business had occurred on January 1, 2017. The unaudited pro forma financial information below is not intended to represent or be indicative of our actual consolidated results had we completed the acquisition at January 1, 2017. This information is presented for comparative purposes only and should not be taken as representative of our future consolidated results of operations.

	Three Months Ended
	March 31, 2018
	(In thousands, except per share amounts)
Revenues	$	467,791
Net Income Attributable to BWX Technologies, Inc.	$	66,890
Basic Earnings per Common Share	$	0.67
Diluted Earnings per Common Share	$	0.67

The unaudited pro forma results include the following pre-tax adjustments to the historical results presented above:

• Increase in amortization expense related to timing of amortization of the fair value of identifiable intangible assets acquired of approximately $1.5 million for the three months ended March 31, 2018.

• Additional interest expense associated with the incremental borrowings that would have been incurred to acquire the MI business as of January 1, 2017 of approximately $1.5 million for the three months ended March 31, 2018.

• Elimination of $1.6 million in acquisition related costs recognized in the three months ended March 31, 2018 that are not expected to be recurring.

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NOTE 3 – REVENUE RECOGNITION

Disaggregated Revenues

Revenues by geographical area and customer type were as follows:

	Three Months Ended March 31, 2019									Three Months Ended March 31, 2018
	Nuclear Operations Group		Nuclear Power Group		Nuclear Services Group		Total			Nuclear Operations Group		Nuclear Power Group		Nuclear Services Group		Total
	(In thousands)
United States:
Government	$	297,303	$	—	$	24,451	$	321,754		$	316,631	$	—	$	25,881	$	342,512
Non-Government	5,338		9,162		4,353		18,853			—		260		3,177		3,437
	$	302,641	$	9,162	$	28,804	$	340,607		$	316,631	$	260	$	29,058	$	345,949
Canada:
Non-Government	$	—	$	68,611	$	290	$	68,901		$	—	$	82,325	$	975	$	83,300
Other:
Non-Government	$	2,160	$	6,626	$	—	$	8,786		$	—	$	30,231	$	—	$	30,231
Segment Revenues	$	304,801	$	84,399	$	29,094	418,294			$	316,631	$	112,816	$	30,033	459,480
Adjustments and Eliminations							(1,840		)							(2,017		)
Revenues							$	416,454								$	457,463

Revenues by timing of transfer of goods or services were as follows:

	Three Months Ended March 31, 2019									Three Months Ended March 31, 2018
	Nuclear Operations Group		Nuclear Power Group		Nuclear Services Group		Total			Nuclear Operations Group		Nuclear Power Group		Nuclear Services Group		Total
	(In thousands)
Over time	$	304,733	$	70,661	$	29,094	$	404,488		$	316,631	$	105,109	$	30,033	$	451,773
Point-in-time	68		13,738		—		13,806			—		7,707		—		7,707
Segment Revenues	$	304,801	$	84,399	$	29,094	418,294			$	316,631	$	112,816	$	30,033	459,480
Adjustments and Eliminations							(1,840		)							(2,017		)
Revenues							$	416,454								$	457,463

Revenues by contract type were as follows:

	Three Months Ended March 31, 2019									Three Months Ended March 31, 2018
	Nuclear Operations Group		Nuclear Power Group		Nuclear Services Group		Total			Nuclear Operations Group		Nuclear Power Group		Nuclear Services Group		Total
	(In thousands)
Fixed-Price Incentive Fee	$	245,487	$	273	$	—	$	245,760		$	249,240	$	4,028	$	—	$	253,268
Firm-Fixed-Price	39,343		61,998		6,168		107,509			47,058		74,282		5,410		126,750
Cost-Plus Fee	19,853		—		22,535		42,388			20,233		45		23,953		44,231
Time-and-Materials	118		22,128		391		22,637			100		34,461		670		35,231
Segment Revenues	$	304,801	$	84,399	$	29,094	418,294			$	316,631	$	112,816	$	30,033	459,480
Adjustments and Eliminations							(1,840		)							(2,017		)
Revenues							$	416,454								$	457,463

Performance Obligations

As we progress on our contracts and the underlying performance obligations for which we recognize revenue over time, we refine our estimates of variable consideration and total estimated costs at completion, which impact the overall profitability on our contracts and performance obligations. Changes in these estimates result in the recognition of cumulative catch-up adjustments that impact our revenues and/or costs of contracts. During the three months ended March 31, 2019 and 2018, we recognized net favorable changes in estimates that resulted in increases in revenues of $4.8 million and $5.3 million, respectively.

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Contract Assets and Liabilities

We include revenues and related costs incurred, plus accumulated contract costs that exceed amounts invoiced to customers under the terms of the contracts, in Contracts in progress. We include in Advance billings on contracts billings that exceed accumulated contract costs and revenues and costs recognized over time. Amounts that are withheld on our fixed-price incentive fee contracts are classified within Retainages. Certain of these amounts require conditions other than the passage of time to be achieved, with the remaining amounts only requiring the passage of time. Most long-term contracts contain provisions for progress payments. Our unbilled receivables do not contain an allowance for credit losses as we expect to invoice customers and collect all amounts for unbilled revenues. Changes in Contracts in progress and Advance billings on contracts are primarily driven by differences in the timing of revenue recognition and billings to our customers. During the three months ended March 31, 2019, our unbilled receivables increased$33.1 million, primarily as a result of revenue in excess of billings on certain fixed-price incentive fee contracts within our Nuclear Operations Group segment and services and engineering contracts within our Nuclear Power Group segment. Our fixed-price incentive fee contracts for our Nuclear Operations Group segment include provisions that result in an increase in retainages on contracts during the first and third quarters of the year, with larger payments made during the second and fourth quarters. Retainages also vary as a result of timing differences between incurring costs and achieving milestones that allow us to recover these amounts. This resulted in an increase in retainages on contracts during the three months ended March 31, 2019 as shown below:

	March 31,		December 31,
	2019		2018
	(In thousands)
Included in Contracts in progress:
Unbilled receivables	$	341,776	$	308,723
Retainages	$	72,000	$	57,885
Included in Other Assets:
Retainages	$	1,508	$	1,674
Advance billings on contracts	$	88,117	$	98,477

During the three months ended March 31, 2019 and 2018, we recognized $33.8 million and $30.4 million of revenues that were in Advance billings on contracts at December 31, 2018 and January 1, 2018, respectively.

Remaining Performance Obligations

Remaining performance obligations represent the dollar amount of revenue we expect to recognize in the future from performance obligations on contracts previously awarded and in progress. Of the March 31, 2019 remaining performance obligations on our contracts with customers, we expect to recognize revenues as follows:

	2019		2020		Thereafter		Total
	(In approximate millions)
Nuclear Operations Group	$	708	$	947	$	2,355	$	4,010
Nuclear Power Group	185		146		438		769
Nuclear Services Group	40		3		2		45
Total Remaining Performance Obligations	$	933	$	1,096	$	2,795	$	4,824

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NOTE 4 – PENSION PLANS AND POSTRETIREMENT BENEFITS

We record the service cost component of net periodic benefit cost within Operating income on our condensed consolidated statements of income. For the three months ended March 31, 2019 and 2018, these amounts were $2.6 million. All other components of net periodic benefit cost are included in Other – net within the condensed consolidated statements of income. For the three months ended March 31, 2019 and 2018, these amounts were $(5.2) million and $(8.9) million, respectively. Components of net periodic benefit cost included in net income were as follows:

	Pension Benefits						Other Benefits
	Three Months Ended March 31,						Three Months Ended March 31,
	2019			2018			2019			2018
	(In thousands)
Service cost	$	2,456		$	2,413		$	145		$	165
Interest cost	11,592			12,343			585			549
Expected return on plan assets	(17,436		)	(21,625		)	(627		)	(634		)
Amortization of prior service cost (credit)	725			550			(78		)	(45		)
Net periodic benefit (income) cost	$	(2,663	)	$	(6,319	)	$	25		$	35

NOTE 5 – COMMITMENTS AND CONTINGENCIES

There were no material contingencies during the period covered by this Form 10-Q. For more information regarding commitments and contingencies, refer to Note 10 to the consolidated financial statements in Part II of our 2018 10-K.

NOTE 6 – FAIR VALUE MEASUREMENTS

Investments

The following is a summary of our investments measured at fair value at March 31, 2019:

	Total		Level 1		Level 2		Level 3
	(In thousands)
Equity securities
Equities	$	1,919	$	—	$	1,919	$	—
Mutual funds	5,130		—		5,130		—
Available-for-sale securities
U.S. Government and agency securities	1,979		1,979		—		—
Corporate bonds	3,082		1,460		1,622		—
Asset-backed securities and collateralized mortgage obligations	89		—		89		—
Total	$	12,199	$	3,439	$	8,760	$	—

The following is a summary of our investments measured at fair value at December 31, 2018:

	Total		Level 1		Level 2		Level 3
	(In thousands)
Equity securities
Equities	$	1,163	$	—	$	1,163	$	—
Mutual funds	4,694		—		4,694		—
Available-for-sale securities
U.S. Government and agency securities	2,227		2,227		—		—
Corporate bonds	2,803		1,433		1,370		—
Asset-backed securities and collateralized mortgage obligations	92		—		92		—
Total	$	10,979	$	3,660	$	7,319	$	—

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We estimate the fair value of investments based on quoted market prices. For investments for which there are no quoted market prices, we derive fair values from available yield curves for investments of similar quality and terms.

Derivatives

Level 2 derivative assets and liabilities currently consist of FX forward contracts. Where applicable, the value of these derivative assets and liabilities is computed by discounting the projected future cash flow amounts to present value using market-based observable inputs, including FX forward and spot rates, interest rates and counterparty performance risk adjustments. At March 31, 2019 and December 31, 2018, we had forward contracts outstanding to purchase or sell foreign currencies, primarily Canadian dollars, with a total fair value of $(0.2) million and $0.7 million, respectively.

Other Financial Instruments

We used the following methods and assumptions in estimating our fair value disclosures for our other financial instruments, as follows:

Cash and cash equivalents and restricted cash and cash equivalents. The carrying amounts that we have reported in the accompanying condensed consolidated balance sheets for Cash and cash equivalents and Restricted cash and cash equivalents approximate their fair values due to their highly liquid nature.

Long-term and short-term debt. We base the fair values of debt instruments, including our 5.375% senior notes due 2026 (the "Senior Notes"), on quoted market prices. Where quoted prices are not available, we base the fair values on the present value of future cash flows discounted at estimated borrowing rates for similar debt instruments or on estimated prices based on current yields for debt issues of similar quality and terms. At March 31, 2019 and December 31, 2018, the fair value of our Senior Notes was $406.2 million and $384.9 million, respectively. The fair value of our remaining debt instruments approximated their carrying values at March 31, 2019 and December 31, 2018.

NOTE 7 – STOCK-BASED COMPENSATION

Stock-based compensation recognized for all of our plans for the three months ended March 31, 2019 and 2018 totaled $3.6 million and $4.9 million, respectively, with associated tax benefit totaling $0.6 million and $0.9 million, respectively.

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NOTE 8 – SEGMENT REPORTING

As described in Note 1, our operations are assessed based on three reportable segments. An analysis of our operations by reportable segment is as follows:

	Three Months Ended March 31,
	2019			2018
	(In thousands)
REVENUES:
Nuclear Operations Group	$	304,801		$	316,631
Nuclear Power Group	84,399			112,816
Nuclear Services Group	29,094			30,033
Adjustments and Eliminations (1)	(1,840		)	(2,017		)
	$	416,454		$	457,463

(1) Segment revenues are net of the following intersegment transfers and other adjustments:

Nuclear Operations Group Transfers	$	(857	)	$	(1,139	)
Nuclear Power Group Transfers	(40		)	(40		)
Nuclear Services Group Transfers	(943		)	(838		)
	$	(1,840	)	$	(2,017	)
OPERATING INCOME:
Nuclear Operations Group	$	57,625		$	67,657
Nuclear Power Group	12,583			21,764
Nuclear Services Group	1,571			1,177
Other	(6,096		)	(4,043		)
	$	65,683		$	86,555
Unallocated Corporate (2)	(2,039		)	(6,667		)
Total Operating Income	$	63,644		$	79,888
Other Income (Expense):
Interest income	415			778
Interest expense	(8,703		)	(3,560		)
Other – net	7,521			7,910
Total Other Income (Expense)	(767		)	5,128
Income before Provision for Income Taxes	$	62,877		$	85,016

(2) Unallocated corporate includes general corporate overhead not allocated to segments.

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NOTE 9 – EARNINGS PER SHARE

The following table sets forth the computation of basic and diluted earnings per share:

	Three Months Ended March 31,
	2019		2018
	(In thousands, except share and per share amounts)
Basic:
Net Income Attributable to BWX Technologies, Inc.	$	48,978	$	66,441
Weighted-average common shares	95,255,109		99,526,187
Basic earnings per common share	$	0.51	$	0.67
Diluted:
Net Income Attributable to BWX Technologies, Inc.	$	48,978	$	66,441
Weighted-average common shares (basic)	95,255,109		99,526,187
Effect of dilutive securities:
Stock options, restricted stock units and performance shares (1)	566,245		986,100
Adjusted weighted-average common shares	95,821,354		100,512,287
Diluted earnings per common share	$	0.51	$	0.66

(1) At March 31, 2019 and 2018, we excluded 181,358 and 79,278 shares, respectively, from our diluted share calculation as their effect would have been antidilutive.

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Item 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

CAUTIONARY STATEMENT CONCERNING FORWARD-LOOKING STATEMENTS

The following information should be read in conjunction with the unaudited condensed consolidated financial statements and the notes thereto included under Item 1 of this quarterly report on Form 10-Q ("Report") and the audited consolidated financial statements and the related notes and Item 7 "Management's Discussion and Analysis of Financial Condition and Results of Operations" included in our annual report on Form 10-K for the year ended December 31, 2018 (our "2018 10-K").

In this Report, unless the context otherwise indicates, "we," "us" and "our" mean BWX Technologies, Inc. ("BWXT" or the "Company") and its consolidated subsidiaries.

From time to time, our management or persons acting on our behalf make forward-looking statements to inform existing and potential security holders about our Company. Forward-looking statements include those statements that express a belief, expectation or intention, as well as those that are not statements of historical fact, within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act. Statements and assumptions regarding expectations and projections of specific projects, our future backlog, revenues, income and capital spending, strategic investments, acquisitions or divestitures, return of capital activities or margin improvement initiatives are examples of forward-looking statements. Forward-looking statements are generally accompanied by words such as "estimate," "project," "predict," "believe," "expect," "anticipate," "plan," "seek," "goal," "could," "intend," "may," "should" or other words that convey the uncertainty of future events or outcomes. In addition, sometimes we will specifically describe a statement as being a forward-looking statement and refer to this cautionary statement.

We have based our forward-looking statements on information currently available to us and our current expectations, estimates and projections about our industries and our Company. We caution that these statements are not guarantees of future performance and you should not rely unduly on them as they involve risks, uncertainties and assumptions that we cannot predict. In addition, we have based many of these forward-looking statements on assumptions about future events that may prove to be inaccurate. While our management considers these statements and assumptions to be reasonable, they are inherently subject to numerous factors, including potentially the risk factors described in the section labeled Item 1A, "Risk Factors" of our 2018 10-K, most of which are difficult to predict and many of which are beyond our control. Accordingly, our actual results may differ materially from the future performance that we have expressed or forecast in our forward-looking statements.

We have discussed many of these factors in more detail elsewhere in this Report and in Item 1A "Risk Factors" in our 2018 10-K. These factors are not necessarily all the factors that could affect us. Unpredictable or unanticipated factors we have not discussed in this Report or in our 2018 10-K could also have material adverse effects on actual results of matters that are the subject of our forward-looking statements. We do not intend to update or review any forward-looking statement or our description of important factors, whether as a result of new information, future events or otherwise, except as required by applicable laws.

GENERAL

We operate in three reportable segments: Nuclear Operations Group, Nuclear Power Group and Nuclear Services Group. In general, we operate in capital-intensive industries and rely on large contracts for a substantial amount of our revenues. We are currently exploring growth strategies across our segments to expand and complement our existing businesses. We would expect to fund these opportunities with cash generated from operations or by raising additional capital through debt, equity or some combination thereof.

Nuclear Operations Group

The revenues of our Nuclear Operations Group segment are largely a function of defense spending by the U.S. Government. Through this segment, we engineer, design and manufacture precision naval nuclear components, reactors and nuclear fuel for the DOE/NNSA's Naval Nuclear Propulsion Program. In addition, we perform development and fabrication activities for missile launch tubes for U.S. Navy submarines. As a supplier of major nuclear components for certain U.S. Government programs, this segment is a significant participant in the defense industry.

Nuclear Power Group

Through this segment, we design and manufacture commercial nuclear steam generators, heat exchangers, pressure vessels, reactor components, and other auxiliary equipment, including containers for the storage of spent nuclear fuel and other

20

high-level nuclear waste. This segment is a leading supplier of nuclear fuel, fuel handling systems, tooling delivery systems and related services for CANDU nuclear power plants. This segment also provides a variety of engineering and in-plant services and is a significant supplier to nuclear power utilities undergoing major refurbishment and plant life extension projects. Additionally, this segment is a leading global manufacturer and supplier of critical medical radioisotopes and radiopharmaceuticals.

Our Nuclear Power Group segment's overall activity primarily depends on the demand and competitiveness of nuclear energy. A significant portion of our Nuclear Power Group segment's operations depend on the timing of maintenance and refueling outages, the cyclical nature of capital expenditures and major refurbishment and life extension projects, as well as the demand for nuclear fuel and fuel handling equipment primarily in the Canadian market, which could cause variability in our financial results.

Nuclear Services Group

Our Nuclear Services Group segment provides various services to the U.S. Government and the commercial nuclear industry primarily in the U.S. The revenues and equity in income of investees under our U.S. Government contracts are largely a function of spending of the U.S. Government and the performance scores we and our consortium partners earn in managing and operating high-consequence operations at U.S. nuclear weapons sites, national laboratories and manufacturing complexes. With its specialized capabilities of full life-cycle management of special materials, facilities and technologies, we believe our Nuclear Services Group segment is well-positioned to continue to participate in the continuing cleanup, operation and management of critical government-owned nuclear sites, laboratories and manufacturing complexes maintained by the DOE, NASA and other federal agencies.

This segment is also engaged in inspection and maintenance services for the commercial nuclear industry primarily in the U.S. These services include steam generator, heat exchanger and balance of plant inspection and servicing as well as high pressure water lancing, non-destructive examination and the development of customized tooling solutions. This segment also develops technology for a variety of applications, including advanced nuclear power sources, and offers complete advanced nuclear fuel and reactor design and engineering, licensing and manufacturing services for new advanced nuclear reactors.

Acquisition of Sotera Health LLC's Nordion Medical Isotope Business

On July 30, 2018, our subsidiary BWXT ITG Canada, Inc. acquired Sotera Health's Nordion medical isotope business (the "MI business"). The MI business is a leading global manufacturer and supplier of critical medical radioisotopes and radiopharmaceuticals for research, diagnostic and therapeutic uses. Its customers include radiopharmaceutical companies, hospitals and radiopharmacies. Its primary operations are located in Kanata, Ontario, Canada and Vancouver, British Columbia, Canada. This acquisition added approximately 150 highly trained and experienced personnel, two specialized production centers and a uniquely licensed infrastructure. In addition to the growing portfolio of radioisotope products we acquired, the MI business will be the platform from which we plan to launch our Molybdenum-99 product line and a number of future radioisotope-based imaging, diagnostic and therapeutic products. This business is reported as part of our Nuclear Power Group segment.

Critical Accounting Policies and Estimates

For a summary of the critical accounting policies and estimates that we use in the preparation of our unaudited condensed consolidated financial statements, see Item 7 "Management's Discussion and Analysis of Financial Condition and Results of Operations" in our 2018 10-K. There have been no material changes to our policies during the three months ended March 31, 2019 with the exception of changes to Financial Accounting Standards Board ("FASB") Topic Leases as described in the notes to the condensed consolidated financial statements in Item 1 of this Report.

Accounting for Contracts

On certain of our performance obligations, we recognize revenue over time. In accordance with FASB Topic Revenue from Contracts with Customers, we are required to estimate the total amount of costs on these performance obligations. As of March 31, 2019, we have provided for the estimated costs to complete all of our ongoing contracts. However, it is possible that current estimates could change due to unforeseen events, which could result in adjustments to overall contract costs. A principal risk on fixed-price contracts is that revenue from the customer is insufficient to cover increases in our costs. It is possible that current estimates could materially change for various reasons, including, but not limited to, fluctuations in forecasted labor productivity or steel and other raw material prices. In some instances, we guarantee completion dates related to our projects or provide performance guarantees. Increases in costs on our fixed-price contracts could have a material adverse impact on our

21

consolidated results of operations, financial condition and cash flows. Alternatively, reductions in overall contract costs at completion could materially improve our consolidated results of operations, financial condition and cash flows. During the three months ended March 31, 2019 and 2018, we recognized net changes in estimates related to contracts that recognize revenue over time, which increased operating income by approximately $4.8 million and $5.3 million, respectively.

RESULTS OF OPERATIONS – THREE MONTHS ENDED MARCH 31, 2019 VS. THREE MONTHS ENDED MARCH 31, 2018

Selected financial highlights are presented in the table below:

	Three Months Ended March 31,
	2019			2018			$ Change
	(In thousands)
REVENUES:
Nuclear Operations Group	$	304,801		$	316,631		$	(11,830	)
Nuclear Power Group	84,399			112,816			(28,417		)
Nuclear Services Group	29,094			30,033			(939		)
Adjustments and Eliminations	(1,840		)	(2,017		)	177
	$	416,454		$	457,463		$	(41,009	)
OPERATING INCOME:
Nuclear Operations Group	$	57,625		$	67,657		$	(10,032	)
Nuclear Power Group	12,583			21,764			(9,181		)
Nuclear Services Group	1,571			1,177			394
Other	(6,096		)	(4,043		)	(2,053		)
	$	65,683		$	86,555		$	(20,872	)
Unallocated Corporate	(2,039		)	(6,667		)	4,628
Total Operating Income	$	63,644		$	79,888		$	(16,244	)

Consolidated Results of Operations

Consolidated revenues decreased9.0%, or $41.0 million, to$416.5 million in the three months ended March 31, 2019 compared to$457.5 million for the corresponding period in 2018, due to decreases in revenues from our Nuclear Operations Group, Nuclear Power Group and Nuclear Services Group segments totaling $11.8 million, $28.4 million and $0.9 million, respectively.

Consolidated operating income decreased$16.2 millionto$63.6 million in the three months ended March 31, 2019 compared to$79.9 million for the corresponding period of 2018. Operating income in our Nuclear Operations Group, Nuclear Power Group and Other segments decreased by $10.0 million, $9.2 million and $2.1 million, respectively. These decreases were partially offset by operating income improvements in our Nuclear Services Group segment of $0.4 million as well as lower unallocated corporate expenses of $4.6 million when compared to the corresponding period of 2018.

Nuclear Operations Group

	Three Months Ended March 31,
	2019		2018		$ Change
	(In thousands)
Revenues	$	304,801	$	316,631	$	(11,830	)
Operating Income	$	57,625	$	67,657	$	(10,032	)
% of Revenues	18.9%		21.4%

Revenues decreased3.7%, or $11.8 million, to$304.8 million in the three months ended March 31, 2019 compared to$316.6 million for the corresponding period of 2018. This decrease was attributable to lower activity in the manufacturing of nuclear and non-nuclear components for U.S. Government programs due primarily to the timing of the procurement of certain

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long-lead materials. This decrease was partially offset by increased activity in our naval nuclear fuel and downblending operations.

Operating income decreased$10.0 millionto$57.6 million in the three months ended March 31, 2019 compared to$67.7 million for the corresponding period of 2018. The decrease in operating income was primarily due to the changes in revenues noted above as well as net favorable changes in estimates related to certain long-term contracts within our naval nuclear fuel and downblending operations, which occurred during the quarter ended March 31, 2018. We also incurred higher expenses associated with onboarding employees to meet expected increased volume demands.

Nuclear Power Group

	Three Months Ended March 31,
	2019		2018		$ Change
	(In thousands)
Revenues	$	84,399	$	112,816	$	(28,417	)
Operating Income	$	12,583	$	21,764	$	(9,181	)
% of Revenues	14.9%		19.3%

Revenues decreased25.2%, or $28.4 million, to$84.4 million in the three months ended March 31, 2019 compared to$112.8 million for the corresponding period of 2018. The decrease was primarily attributable to lower levels of activity associated with our nuclear components business of $19.6 million, predominantly related to the China steam generator project, which is nearing completion. In addition, we experienced a decrease in revenues of $10.2 million from a decline in the volume of in-plant inspection, maintenance and modification services due to fewer plant outages. These decreases were partially offset by an increase in revenues associated with our MI business, which was acquired in the third quarter of 2018.

Operating income decreased$9.2 millionto$12.6 million in the three months ended March 31, 2019 compared to$21.8 million for the corresponding period of 2018, primarily attributable to the decrease in revenues noted above. In addition, operating margins decreased as a result of a shift in our product line mix when compared to the same period in the prior year.

Nuclear Services Group

	Three Months Ended March 31,
	2019		2018		$ Change
	(In thousands)
Revenues	$	29,094	$	30,033	$	(939	)
Operating Income	$	1,571	$	1,177	$	394
% of Revenues	5.4%		3.9%

Revenues totaled $29.1 million in the three months ended March 31, 2019 and were relatively unchanged when compared to$30.0 million for the corresponding period of 2018.

Operating income totaled $1.6 million in the three months ended March 31, 2019 and was relatively unchanged when compared to$1.2 million for the corresponding period of 2018.

Other

	Three Months Ended March 31,
	2019			2018			$ Change
	(In thousands)
Operating Income	$	(6,096	)	$	(4,043	)	$	(2,053	)

Operating income decreased$2.1 million in the three months ended March 31, 2019, primarily due to an increase in research and development activities related to our medical and industrial radioisotope capabilities and other nuclear technologies.

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Unallocated Corporate

Unallocated corporate expenses decreased $4.6 million to $2.0 million for the three months ended March 31, 2019 compared to $6.7 million for the corresponding period of 2018. This decrease was primarily due to higher levels of legal and consulting costs associated with due diligence activities conducted in the prior year as well as higher levels of stock-based compensation during the quarter ended March 31, 2018.

Provision for Income Taxes

	Three Months Ended March 31,
	2019		2018		$ Change
	(In thousands)
Income before Provision for Income Taxes	$	62,877	$	85,016	$	(22,139	)
Provision for Income Taxes	$	13,767	$	18,603	$	(4,836	)
Effective Tax Rate	21.9%		21.9%

We operate primarily in the U.S. and Canada, and we recognize our U.S. income tax provision based on the U.S. federal statutory rate of 21% and our Canadian tax provision based on the Canadian local statutory rate of approximately 25%.

Our effective tax rate for the three months ended March 31, 2019 was 21.9% as compared to 21.9% for the three months ended March 31, 2018. The effective tax rates for the three months ended March 31, 2019 and 2018 were slightly higher than the U.S. corporate income tax rate of 21% primarily due to state income taxes within the U.S. and the unfavorable rate differential associated with our Canadian earnings. Our effective tax rates for the three months ended March 31, 2019 and 2018 were favorably impacted by benefits recognized for excess tax benefits related to employee share-based payments of $1.7 million and $2.2 million, respectively.

Backlog

Backlog represents the dollar amount of revenue we expect to recognize in the future from contracts awarded and in progress. Not all of our expected revenue from a contract award is recorded in backlog for a variety of reasons, including that some projects are awarded and completed within the same fiscal quarter.

Our backlog is equal to our remaining performance obligations under contracts that meet the criteria in FASB Topic Revenue from Contracts with Customers, as discussed in Note 3 to our condensed consolidated financial statements included in this Report. It is possible that our methodology for determining backlog may not be comparable to methods used by other companies.

We are subject to the budgetary and appropriations cycle of the U.S. Government as it relates to our Nuclear Operations Group and Nuclear Services Group segments. Backlog may not be indicative of future operating results, and projects in our backlog may be cancelled, modified or otherwise altered by customers.

	March 31, 2019		December 31, 2018
	(In approximate millions)
Nuclear Operations Group	$	4,010	$	2,637
Nuclear Power Group	769		804
Nuclear Services Group	45		38
Total Backlog	$	4,824	$	3,479

We do not include the value of our unconsolidated joint venture contracts in backlog. These unconsolidated joint ventures are included in our Nuclear Services Group segment.

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Of the March 31, 2019 backlog, we expect to recognize revenues as follows:

	2019		2020		Thereafter		Total
	(In approximate millions)
Nuclear Operations Group	$	708	$	947	$	2,355	$	4,010
Nuclear Power Group	185		146		438		769
Nuclear Services Group	40		3		2		45
Total Backlog	$	933	$	1,096	$	2,795	$	4,824

At March 31, 2019, Nuclear Operations Group backlog with the U.S. Government was $3,502.7 million, $171.7 million of which had not yet been funded.

At March 31, 2019, Nuclear Power Group had no backlog with the U.S. Government.

At March 31, 2019, Nuclear Services Group backlog with the U.S. Government was $36.1 million, all of which was funded.

Major new awards from the U.S. Government are typically received following Congressional approval of the budget for the Government's next fiscal year, which starts October 1, and may not be awarded to us before the end of the calendar year. Due to the fact that most contracts awarded by the U.S. Government are subject to these annual funding approvals, the total values of the underlying programs are significantly larger. In March 2019, we received a nuclear component and fuel award from the U.S. Government with a combined value exceeding $2.1 billion, inclusive of unexercised options, approximately $1.5 billion of which had been added to backlog as of March 31, 2019. The value of unexercised options excluded from backlog as of March 31, 2019 was approximately $0.6 billion, the majority of which is expected to be exercised in 2020, subject to annual Congressional appropriations.

Liquidity and Capital Resources

Credit Facility

On May 24, 2018, we and certain of our subsidiaries entered into a credit agreement (the "Credit Facility") with Wells Fargo Bank, N.A., as administrative agent, and the other lenders party thereto. The Credit Facility includes a $500.0 million senior secured revolving credit facility (the "Revolving Credit Facility"), a $50.0 million U.S. dollar senior secured term loan A made available to the Company (the "USD Term Loan") and a $250.0 million (U.S. dollar equivalent) Canadian dollar senior secured term loan A made available to BWXT Canada Ltd. (the "CAD Term Loan"). All obligations under the Credit Facility are scheduled to mature on May 24, 2023. The proceeds of loans under the Credit Facility are available for working capital needs and other general corporate purposes.

The Credit Facility allows for additional parties to become lenders and, subject to certain conditions, for the increase of the commitments under the Credit Facility, subject to an aggregate maximum for all additional commitments of (1) the greater of (a) $250 million and (b) 65% of EBITDA, as defined in the Credit Facility, for the last four full fiscal quarters, plus (2) all voluntary prepayments of term loans, plus (3) additional amounts provided the Company is in compliance with a pro forma first lien leverage ratio test of less than or equal to 2.50 to 1.00.

The Company's obligations under the Credit Facility are guaranteed, subject to certain exceptions, by substantially all of the Company's present and future wholly owned domestic restricted subsidiaries. The obligations of BWXT Canada Ltd. under the Credit Facility are guaranteed, subject to certain exceptions, by substantially all of the Company's present and future wholly owned Canadian and domestic restricted subsidiaries.

The Credit Facility is secured by first-priority liens on certain assets owned by the Company (other than its subsidiaries comprising its Nuclear Operations Group segment and a portion of its Nuclear Services Group segment); provided that (1) the Company's domestic obligations are only secured by assets and property of the domestic loan parties and (2) the obligations of BWXT Canada Ltd. and the Canadian guarantors are secured by assets and property of the Canadian guarantors and the domestic loan parties.

The Credit Facility requires interest payments on revolving loans on a periodic basis until maturity. We began making quarterly amortization payments on the USD Term Loan and the CAD Term Loan in amounts equal to 1.25% of the initial aggregate principal amount of each term loan in the third quarter of 2018. We may prepay all loans under the Credit Facility at any time without premium or penalty (other than customary Eurocurrency breakage costs), subject to notice requirements.

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The Credit Facility includes financial covenants that are tested on a quarterly basis, based on the rolling four-quarter period that ends on the last day of each fiscal quarter. The maximum permitted leverage ratio is 4.00 to 1.00, which may be increased to 4.50 to 1.00 for up to four consecutive fiscal quarters after a material acquisition. The minimum consolidated interest coverage ratio is 3.00 to 1.00. In addition, the Credit Facility contains various restrictive covenants, including with respect to debt, liens, investments, mergers, acquisitions, dividends, equity repurchases and asset sales. As of March 31, 2019, we were in compliance with all covenants set forth in the Credit Facility.

Outstanding loans under the Credit Facility will bear interest at our option at either (1) the Eurocurrency rate plus a margin ranging from 1.25% to 2.00% per year or (2) the base rate or Canadian index rate, as applicable (described in the Credit Facility as the highest of (a) with respect to the base rate only, the federal funds rate plus 0.50%, (b) the one-month Eurocurrency rate plus 1.0% and (c) the administrative agent's prime rate or the Canadian prime rate, as applicable), plus, in each case, a margin ranging from 0.25% to 1.00% per year. We are charged a commitment fee on the unused portion of the Revolving Credit Facility, and that fee ranges from 0.150% to 0.275% per year. Additionally, we are charged a letter of credit fee of between 1.25% and 2.00% per year with respect to the amount of each financial letter of credit issued under the Credit Facility, and a letter of credit fee of between 0.75% and 1.20% per year with respect to the amount of each performance letter of credit issued under the Credit Facility. The applicable margin for loans, the commitment fee and the letter of credit fees set forth above will vary quarterly based on our leverage ratio. Based on the leverage ratio applicable at March 31, 2019, the margin for Eurocurrency rate and base rate or Canadian index rate loans was 1.375% and 0.375%, respectively, the letter of credit fee for financial letters of credit and performance letters of credit was 1.375% and 0.825%, respectively, and the commitment fee for the unused portion of the Revolving Credit Facility was 0.175%.

As of March 31, 2019, borrowings outstanding totaled $276.9 million and $202.7 million under our term loans and revolving line of credit, respectively, and letters of credit issued under the Credit Facility totaled $64.3 million. As a result, we had $233.0 million available for borrowings or to meet letter of credit requirements as of March 31, 2019. As of March 31, 2019, the weighted-average interest rate on outstanding borrowings under our Credit Facility was 3.71%.

The Credit Facility generally includes customary events of default for a secured credit facility, some of which allow for an opportunity to cure. Under the Credit Facility, (1) if an event of default relating to bankruptcy or other insolvency events occurs, all related obligations will immediately become due and payable; (2) if any other event of default exists, the lenders will be permitted to accelerate the maturity of the related obligations outstanding; and (3) if any event of default exists, the lenders will be permitted to terminate their commitments thereunder and exercise other rights and remedies, including the commencement of foreclosure or other actions against the collateral.

If any default occurs under the Credit Facility, or if we are unable to make any of the representations and warranties in the Credit Facility, we will be unable to borrow funds or have letters of credit issued under the Credit Facility.

Senior Notes

We issued $400.0 million aggregate principal amount of its 5.375% senior notes due 2026 (the "Senior Notes") pursuant to an indenture dated May 24, 2018 (the "Indenture"), among the Company, certain of our subsidiaries, as guarantors, and U.S. Bank National Association, as trustee. The Senior Notes are guaranteed by each of the Company's present and future direct and indirect wholly owned domestic subsidiaries that is a guarantor under the Credit Facility.

Interest on the Senior Notes is payable semi-annually in cash in arrears on January 15 and July 15 of each year, which commenced on July 15, 2018, at a rate of 5.375% per annum. The Senior Notes will mature on July 15, 2026.

The Company may redeem the Senior Notes, in whole or in part, at any time on or after July 15, 2021 at established redemption prices. At any time prior to July 15, 2021, the Company may also redeem up to 40% of the Senior Notes with net cash proceeds of certain equity offerings at a redemption price equal to 105.375% of the principal amount of the Senior Notes to be redeemed, plus accrued and unpaid interest, if any, to, but excluding, the redemption date. In addition, at any time prior to July 15, 2021, the Company may redeem the Senior Notes, in whole or in part, at a redemption price equal to 100% of the principal amount of the Senior Notes to be redeemed, plus accrued and unpaid interest, if any, to, but excluding, the redemption date plus an applicable "make-whole" premium.

The Indenture contains customary events of default, including, among other things, payment default, failure to comply with covenants or agreements contained in the Indenture or the Senior Notes and certain provisions related to bankruptcy events. The Indenture also contains customary negative covenants. As of March 31, 2019, we were in compliance with all covenants and agreements set forth in the Indenture and the Senior Notes.

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Other Arrangements

We have posted surety bonds to support regulatory and contractual obligations for certain decommissioning responsibilities, projects and legal matters. We utilize bonding facilities to support such obligations, but the issuance of bonds under those facilities is typically at the surety's discretion. Although there can be no assurance that we will maintain our surety bonding capacity, we believe our current capacity is adequate to support our existing requirements for the next twelve months. In addition, these bonds generally indemnify the beneficiaries should we fail to perform our obligations under the applicable agreements. We, and certain of our subsidiaries, have jointly executed general agreements of indemnity in favor of surety underwriters relating to surety bonds those underwriters issue. As of March 31, 2019, bonds issued and outstanding under these arrangements totaled approximately $67.7 million.

Long-term Benefit Obligations

Our unfunded pension and postretirement benefit obligations totaled $193.1 million at March 31, 2019. These long-term liabilities are expected to require use of our resources to satisfy future funding obligations. Based largely on statutory funding requirements, we expect to make contributions of approximately $5.7 million for the remainder of 2019 related to our pension and postretirement plans. We may also make additional contributions based on a variety of factors including, but not limited to, tax planning, evaluation of funded status and risk mitigation strategies.

Other

Our domestic and foreign cash and cash equivalents, restricted cash and cash equivalents and investments as of March 31, 2019 and December 31, 2018 were as follows:

	March 31, 2019		December 31, 2018
	(In thousands)
Domestic	$	27,529	$	37,108
Foreign	14,392		10,279
Total	$	41,921	$	47,387

Our working capital increased by $86.7 million to $251.8 million at March 31, 2019 from $165.1 million at December 31, 2018, primarily attributable to changes in net contracts in progress and advance billings due to the timing of project cash flows and a decrease in current liabilities primarily associated with the payment of accrued incentives during the three months ended March 31, 2019.

Our net cash used in operations of $17.7 million in the three months ended March 31, 2019 was comparable to the $18.6 million in the three months ended March 31, 2018. The cash used in operations was primarily attributable to meeting our working capital needs for the periods then ended.

Our net cash used in investing activities increased by $28.8 million to $44.5 million in the three months ended March 31, 2019 compared to $15.7 million in the three months ended March 31, 2018. The increase was primarily attributable to an increase in purchases of property, plant and equipment of $26.9 million.

Our net cash provided by financing activities increased by $80.7 million to $55.4 million in the three months ended March 31, 2019, compared to cash used in financing activities of $25.3 million in the three months ended March 31, 2018. The increase was primarily attributable to an increase in net borrowings of $106.0 million, which was partially offset by an increase in repurchases of common shares of $20.0 million.

At March 31, 2019, we had restricted cash and cash equivalents totaling $6.7 million, $2.7 million of which was held for future decommissioning of facilities (which is included in other assets on our condensed consolidated balance sheets) and $4.0 million of which was held to meet reinsurance reserve requirements of our captive insurer.

At March 31, 2019, we had short-term and long-term investments with a fair value of $12.2 million. Our investment portfolio consists primarily of U.S. Government and agency securities, corporate bonds and equities, mutual funds and asset-backed securities. Our debt securities are carried at fair value and are either classified as trading, with unrealized gains and losses reported in earnings, or as available-for-sale, with unrealized gains and losses, net of tax, being reported as a component of other comprehensive income. Our equity securities are carried at fair value with the unrealized gains and losses reported in earnings.

27

Based on our liquidity position, we believe we have sufficient cash and letter of credit and borrowing capacity to fund our operating requirements for at least the next 12 months.

Item 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Our exposures to market risks have not changed materially from those disclosed in Item 7A included in Part II of our 2018 10-K.

Item 4. CONTROLS AND PROCEDURES

As of the end of the period covered by this quarterly report, we carried out an evaluation of the effectiveness of the design and operation of our disclosure controls and procedures (as that term is defined in Rules 13a-15(e) and 15d-15(e) adopted by the SEC under the Securities Exchange Act of 1934, as amended (the "Exchange Act")). This evaluation was conducted under the supervision and with the participation of management, including our Chief Executive Officer and Chief Financial Officer. Our disclosure controls and procedures were developed through a process in which our management applied its judgment in assessing the costs and benefits of such controls and procedures, which, by their nature, can provide only reasonable assurance regarding the control objectives. You should note that the design of any system of disclosure controls and procedures is based in part upon various assumptions about the likelihood of future events, and we cannot assure you that any design will succeed in achieving its stated goals under all potential future conditions, regardless of how remote. Based on the evaluation referred to above, our Chief Executive Officer and Chief Financial Officer concluded that the design and operation of our disclosure controls and procedures are effective as of March 31, 2019 to provide reasonable assurance that information required to be disclosed by us in the reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the rules and forms of the Securities and Exchange Commission, and such information is accumulated and communicated to management as appropriate to allow timely decisions regarding disclosure. There has been no change in our internal control over financial reporting during the quarter ended March 31, 2019 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

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PART II

OTHER INFORMATION

Item 1. LEGAL PROCEEDINGS

For information regarding ongoing investigations and litigation, see Note 5 to our unaudited condensed consolidated financial statements in Part I of this report, which we incorporate by reference into this Item.

Item 1A. RISK FACTORS

In addition to the other information in this report, the other factors presented in Item 1A Risk Factors in our 2018 10-K are some of the factors that could materially affect our business, financial condition or future results. There have been no material changes to our risk factors from those disclosed in our 2018 10-K.

Item 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

Since November 2012, we have periodically announced that our Board of Directors has authorized share repurchase programs. The following table provides information on our purchases of equity securities during the quarter ended March 31, 2019. Any shares purchased that were not part of a publicly announced plan or program are related to repurchases of common stock pursuant to the provisions of employee benefit plans that permit the repurchase of shares to satisfy statutory tax withholding obligations.

Period	Total number of shares purchased (1)	Average price paid per share		Total number of shares purchased as part of publicly announced plans or programs	Approximate dollar value of shares that may yet be purchased under the plans or programs (in millions) (2)
January 1, 2019 - January 31, 2019	275,879	$	42.22	275,879	$	173.7
February 1, 2019 - February 28, 2019	181,639	$	49.66	167,998	$	165.3
March 1, 2019 - March 31, 2019	161,483	$	51.76	—	$	165.3
Total	619,001	$	46.89	443,877

(1) Includes 13,641 and 161,483 shares repurchased during February and March, respectively, pursuant to the provisions of employee benefit plans that permit the repurchase of shares to satisfy statutory tax withholding obligations.

(2) On November 6, 2018, we announced that our Board of Directors authorized us to repurchase an indeterminate number of shares of our common stock at an aggregate market value of up to $250 million during a three-year period that expires on November 6, 2021.

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Item 6. EXHIBITS

Exhibit Number	Description
2.1	Master Separation Agreement dated as of July 2, 2010 between McDermott International, Inc. and the Company (incorporated by reference to Exhibit 2.1 to the Company's Quarterly Report on Form 10-Q for the quarter ended June 30, 2010 (File No. 1-34658)).
2.2	Master Separation Agreement, dated as of June 8, 2015, between the Company and Babcock & Wilcox Enterprises, Inc. (incorporated by reference to Exhibit 2.1 to the Company's Current Report on Form 8-K filed with the SEC on June 9, 2015 (File No. 1-34658)).
3.1	Restated Certificate of Incorporation of the Company (incorporated by reference to Exhibit 3.1 to the Company's Quarterly Report on Form 10-Q for the quarter ended June 30, 2010 (File No. 1-34658)).
3.2	Certificate of Amendment to Restated Certificate of Incorporation dated June 30, 2015 (incorporated by reference to Exhibit 3.2 to the Company's Quarterly Report on Form 10-Q for the quarter ended June 30, 2015 (File No. 1-34658)).
3.3	Amended and Restated Bylaws (incorporated by reference to Exhibit 3.3 to the Company's Current Report on Form 8-K filed with the SEC on March 5, 2019 (File No. 1-34658)).
4.1	Indenture, dated May 24, 2018, among BWX Technologies, Inc., each of the guarantors party thereto and U.S. Bank National Association, as trustee (incorporated by reference to Exhibit 4.1 to the Company's Current Report on Form 8-K filed with the SEC on May 24, 2018 (File No. 1-34658)).
4.2	Form of 5.375% Senior Note Due 2026 (included in Exhibit 4.1) (incorporated by reference to Exhibit 4.2 to the Company's Current Report on Form 8-K filed with the SEC on May 24, 2018 (File No. 1-34658)).
10.1*	Form of 2019 Performance Restricted Stock Unit Grant Agreement for Employees.
10.2*	Form of 2019 Restricted Stock Unit Grant Agreement for Employees.
31.1	Rule 13a-14(a)/15d-14(a) certification of Chief Executive Officer.
31.2	Rule 13a-14(a)/15d-14(a) certification of Chief Financial Officer.
32.1	Section 1350 certification of Chief Executive Officer.
32.2	Section 1350 certification of Chief Financial Officer.
101.INS	XBRL Instance Document
101.SCH	XBRL Taxonomy Extension Schema Document
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document
101.LAB	XBRL Taxonomy Extension Label Linkbase Document
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document

*  Management contract or compensatory plan or arrangement.

30

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

		BWX TECHNOLOGIES, INC.
		/s/ David S. Black
	By:	David S. Black
		Senior Vice President and Chief Financial Officer
		(Principal Financial Officer and Duly Authorized
		Representative)
		/s/ Jason S. Kerr
	By:	Jason S. Kerr
		Vice President and Chief Accounting Officer
		(Principal Accounting Officer and Duly Authorized
		Representative)
May 1, 2019

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EX-10.1

2019 PERFORMANCE RESTRICTED STOCK UNITS

GRANT AGREEMENT

To: _________________

By accepting your grant online through the Schwab Equity Award Center, you agree that these incentives are granted under and governed by the terms and conditions of the 2010 Long-Term Incentive Plan of BWX Technologies, Inc. (as amended and restated to date, the “Plan”), and this2019 Performance Restricted Stock Units Grant Agreement, which is included in the online acceptance process. A copy of the Plan and the Prospectus relating to the stock issued under the Plan can be found at http://equityawardcenter.schwab.com under the “At a Glance/My Company Info” tab in your Schwab account. The Plan and Prospectus are incorporated by reference and made a part of the terms and conditions of your award. If you would like to receive a copy of either the Plan or Prospectus, please contact Kathy Peres at 980-625-4194 or kaperes@bwxt.com.

******************************************************************************

Effective __________, 2019 (the “Date of Grant”), the Compensation Committee of the Board of Directors (the “Committee”) of BWX Technologies, Inc. (“BWXT”) awarded you a grant of performance-based Restricted Stock Units (“Performance RSUs”) under the Plan. The provisions of the Plan are incorporated herein by reference and capitalized terms used but not otherwise defined in this Agreement have the meanings given them in the Plan. For the avoidance of doubt, the Performance RSUs are not intended to be a Performance-Based Award under the Plan.

Any reference or definition contained in this Agreement shall, except as otherwise specified, be construed in accordance with the terms and conditions of the Plan and all determinations and interpretations made by the Committee with regard to any question arising hereunder or under the Plan shall be binding and conclusive on you and your legal representatives and beneficiaries. The term “BWXT” as used in this Agreement with reference to employment shall include subsidiaries of BWXT (including unconsolidated joint ventures). Whenever the words “you” or “your” are used in any provision of this Agreement under circumstances where the provision should logically be construed to apply to the beneficiary, estate, or personal representative, to whom any rights under this Agreement may be transferred by will or by the laws of descent and distribution, it shall be deemed to include such person.

Performance RSUs

1. Performance RSU Award. You have been awarded ________ performance-based restricted stock units (the “Initial Performance RSUs”). These Performance RSUs represent a right to receive Shares, calculated as described below, provided (and to the extent that) the applicable performance measures and vesting requirements set forth in this Agreement have been satisfied. No Shares are awarded or issued to you on the Date of Grant.

2. Vesting Requirements. Subject to Section 3 of this Agreement (the “Forfeiture of Performance RSUs” provision), Performance RSUs will become vested under one of the following circumstances, to the extent the Performance RSUs have not previously vested or become forfeited:

· a percentage of the Initial Performance RSUs shall become vested on the third anniversary of the Date of Grant, provided you are still employed by BWXT (with the number in which you vest

determined as described in Section 4 of this Agreement (the “Number of Performance RSUs” provision));

· if you terminate employment on or after the first anniversary of the Date of Grant but prior to the third anniversary of the Date of Grant due to Retirement or an involuntary termination by BWXT without Cause (in each case as defined below), you will be eligible to vest in a number of Performance RSUs equal to the product of (a) the number of Performance RSUs that would have vested if you would have remained in the continuous employ of BWXT until the third anniversary of the Date of Grant or the occurrence of a Change in Control (whichever occurs first) multiplied by (b) a fraction, the numerator of which is the number of calendar days you are employed by BWXT during the Performance Period, and the denominator of which is the total number of calendar days in the Performance Period;

· 100% of the Initial Performance RSUs shall become vested prior to the third anniversary of the Date of Grant on the earliest to occur of: (a) the date of termination of your employment from BWXT due to death, (b) your Disability, or (c) the date of a Change in Control; and

· the Committee may provide for additional vesting under other circumstances, in its sole discretion.

For purposes of this Agreement, “Retirement” means voluntary termination of employment with BWXT after attaining (i) at least 60 years of age and (ii) at least [5] [10] years of service with BWXT (with years of service calculated by reference from your “adjusted service date,” as determined by the Company).

For purposes of this Agreement, “Cause” means that (a) you are convicted of (i) a felony or (ii) a misdemeanor involving fraud, dishonesty or moral turpitude, or (b) you engage in conduct that adversely affects or may reasonably be expected to adversely affect the business reputation or economic interests of BWXT, as determined in the sole judgment of the Committee.

3. Forfeiture of Performance RSUs. Except in connection with a “Retirement” or a termination without Cause as described in Section 2 above, Performance RSUs which are not or do not become vested upon your termination of employment for any reason shall, coincident therewith, be forfeited and be of no force and effect.

4. Number of Performance RSUs. Except as otherwise provided in this Agreement and subject to adjustments permitted by the Plan, the number of Performance RSUs in which you will vest under this Agreement, if any, will be determined by multiplying (a) the sum of (i) 0.5 times the vested percentage applicable to Return on Invested Capital (“ROIC”) plus (ii) 0.5 times the vested percentage applicable to diluted Earnings Per Share (“EPS”) by (b) the number of Initial Performance RSUs. The maximum number of Performance RSUs in which you can vest is 200% of your Initial Performance RSUs and the minimum number of Performance RSUs in which you can vest is 0% of your Initial Performance RSUs.

The vested percentage applicable to ROIC and EPS will each be determined over the Performance Period as set forth on Schedule 1 attached hereto and incorporated by reference herein. For purposes of this Agreement, the “Performance Period” means the period beginning on January 1, 2019 and ending on December 31, 2021.

5. Settlement of Performance RSUs. You (or your beneficiary, if applicable) will receive one Share for each Performance RSU that vests under this Agreement. If you have made a permitted deferral election with respect to the Performance RSUs, then, subject to compliance with Section 409A of the Code (to the extent applicable), vested Performance RSUs shall be paid to you in accordance with such deferral election. If you have not made a permitted deferral election with respect to the Performance RSUs, vested Performance RSUs

shall be paid to you as soon as administratively practicable after the Performance RSUs vest, but in no event later than the earlier of (a) March 15 following the end of the calendar year in which the Performance RSUs vest and (b) March 15, 2022 (and in all events within the short-term deferral period for purposes of Section 409A of the Code).

6. Dividend, Voting Rights and Other Rights. You shall have no rights of ownership in the Shares underlying the Performance RSUs and shall have no right to vote such Shares until the date on which the Shares are transferred to you pursuant hereto. From and after the Date of Grant and until the earlier of (a) the time when the Performance RSUs become vested and are paid in accordance with Section 5 hereof or (b) the time when your right to receive Shares in payment of the Performance RSUs is forfeited in accordance with Section 3 hereof, on the date that BWX Technologies, Inc. pays a cash dividend (if any) to holders of Shares generally, you shall be credited with cash per Performance RSU equal to the amount of such dividend. Any amounts credited pursuant to the immediately preceding sentence shall be subject to the same applicable terms and conditions (including vesting, payment and forfeitability) as apply to the Performance RSUs based on which the dividend equivalents were credited, and such amounts shall be paid in cash at the same time as the Performance RSUs to which they relate.

Taxes

7. Liability for Tax-Related Items. Regardless of any action BWXT or your employer (the “Employer”) takes with respect to any or all income tax, social insurance, payroll tax, or other tax-related withholding (“Tax-Related Items”), you acknowledge and agree that the ultimate liability for all Tax-Related Items legally due by you is and remains your responsibility and that BWXT and/or the Employer (i) make no representations nor undertakings regarding the treatment of any Tax-Related Items in connection with any aspect of this grant of Performance RSUs, including the grant and vesting of Performance RSUs, subsequent delivery of Shares or the subsequent sale of any Shares acquired pursuant to such Performance RSUs and receipt of any dividend equivalent payments (if any) and (ii) do not commit to structure the terms or any aspect of this grant of Performance RSUs to reduce or eliminate your liability for Tax-Related Items. Prior to the taxable or tax withholding event, as applicable, you shall pay, or make adequate arrangements satisfactory to BWXT or to the Employer to satisfy all Tax-Related Items. In this regard, you authorize BWXT or Employer to withhold all applicable Tax-Related Items legally payable by you, and unless determined otherwise by the Committee, BWXT or Employer will withhold a number of Shares otherwise deliverable equal to the minimum statutory withholding amount to satisfy such liability. If the obligation for Tax-Related Items is satisfied by withholding a number of Shares as described herein, you understand that you will be deemed to have been issued the full number of Shares subject to the settled Performance RSUs, notwithstanding that a number of Shares are held back solely for the purpose of paying the Tax-Related Items due as a result of the settlement of the Performance RSUs.

Transferability

8. Non-Transferability. Performance RSUs granted hereunder are non-transferable other than by will or by the laws of descent and distribution or pursuant to a qualified domestic relations order.

Clawback Provisions

9. Recovery of Performance RSUs.  In the event that BWXT is required to prepare an accounting restatement due to the material noncompliance of BWXT with any financial reporting requirement under the U.S. federal securities laws as a result of fraud (a “Restatement”) and the Board reasonably determines that you knowingly engaged in the fraud, BWXT will have the right to recover the Performance RSUs granted during the three-year period preceding the date on which the Board or BWXT, as applicable, determines it is required to prepare the Restatement (the “Three-Year Period”), or vested in whole or in part during the

Three-Year Period, to the extent of any excess of what would have been granted to or would have vested for you under the Restatement.

10.Recovery Process.  In the event a Restatement is required, the Board, based upon a recommendation by the Committee, will (a) review the Performance RSUs either granted or vested in whole or in part during the Three-Year Period and (b) in accordance with the provisions of this Agreement and the Plan, will take reasonable action to seek recovery of the amount of such Performance RSUs in excess of what would have been granted to or would have vested for you under the Restatement (but in no event more than the total amount of such Performance RSUs), as such excess amount is reasonably determined by the Board in its sole discretion, in compliance with Section 409A of the Code.  There shall be no duplication of recovery under Article 19 of the Plan and any of 15 U.S.C. Section 7243 (Section 304 of The Sarbanes-Oxley Act of 2002) and Section 10D of the Exchange Act. Notwithstanding anything in this Agreement to the contrary, you acknowledge and agree that this Agreement and the award described herein (and any settlement thereof) are subject to the terms and conditions of the Company’s clawback policy (if any) as may be in effect from time to time specifically to implement Section 10D of the Exchange Act, and any applicable rules or regulations promulgated thereunder (including applicable rules and regulations of any national securities exchange on which the Shares may be traded) (the “Compensation Recovery Policy”), and that Sections 9 and 10 of this Agreement shall be deemed superseded by and subject to the terms and conditions of the Compensation Recovery Policy from and after the effective date thereof.

Other Information

11.No Guarantee of Continued Service. Neither the action of BWXT in establishing the Plan, nor any action taken by it, by the Committee or by your employer, nor any provision of the Plan or this Agreement shall be construed as conferring upon you the right to be retained in the employ of BWXT or any of its subsidiaries or affiliates.

12.Adjustments. The Performance RSUs evidenced by this Agreement are subject to adjustment as provided in Sections 4.3 and 15.2 of the Plan.

13.Compliance with Section 409A of the Code. To the extent applicable, it is intended that this Agreement and the Plan comply with the provisions of Section 409A of the Code. This Agreement and the Plan shall be administered in a manner consistent with this intent, and any provision that would cause this Agreement or the Plan to fail to satisfy Section 409A of the Code shall have no force or effect until amended to comply with Section 409A of the Code (which amendment may be retroactive to the extent permitted by Section 409A of the Code and may be made by BWXT without your consent). Any reference in this Agreement to Section 409A of the Code will also include any proposed, temporary or final regulations, or any other guidance, promulgated with respect to such Section by the U.S. Department of the Treasury or the Internal Revenue Service.

14.Electronic Delivery. BWXT may, in its sole discretion, deliver any documents related to the Performance RSUs and your participation in the Plan, or future awards that may be granted under the Plan, by electronic means or request your consent to participate in the Plan by electronic means. You hereby consent to receive such documents by electronic delivery and, if requested, agree to participate in the Plan through an on-line or electronic system established and maintained by BWXT or another third party designated by BWXT.

15.Severability. In the event that one or more of the provisions of this Agreement shall be invalidated for any reason by a court of competent jurisdiction, any provision so invalidated shall be deemed to be

separable from the other provisions hereof, and the remaining provisions hereof shall continue to be valid and fully enforceable.

16.Successors and Assigns. Without limiting Section 8 hereof, the provisions of this Agreement shall inure to the benefit of, and be binding upon, your successors, administrators, heirs, legal representatives and assigns, and the successors and assigns of the Company.

17.Acknowledgement. You acknowledge that you (a) have received a copy of the Plan, (b) have had an opportunity to review the terms of this Agreement and the Plan, (c) understand the terms and conditions of this Agreement and the Plan and (d) agree to such terms and conditions.

18.Country-Specific Special Terms and Conditions. Notwithstanding any provisions in this Agreement, the Performance RSUs shall also be subject to the special terms and conditions set forth in Appendix A to this Agreement for your country of residence. Moreover, if you relocate to one of the countries included on Appendix A, the special terms and conditions for such country will apply to you, to the extent BWXT determines that the application of such terms and conditions are necessary or advisable in order to comply with local law or facilitate the administration of the Plan. Appendix A constitutes part of this Agreement.

19.Notice to Governmental Authority. Notwithstanding anything in this Agreement to the contrary, nothing in this Agreement prevents you from providing, without prior notice to BWXT, information to governmental authorities regarding possible legal violations or otherwise testifying or participating in any investigation or proceeding by any governmental authorities regarding possible legal violations, and for purpose of clarity you are not prohibited from providing information voluntarily to the Securities and Exchange Commission pursuant to Section 21F of the 1934 Act.

Schedule 1

Calculating ROIC and EPS

Except as otherwise described below, the component values used to calculate ROIC and EPS will be determined in accordance with U.S. generally accepted accounting principles excluding (1) expenses associated with the acquisition or disposition of any asset, (2) expenses associated with company restructuring activity, (3) any pension accounting mark-to-market losses, (4) acquisition related amortization resulting from an acquisition that occurs during the Performance Period, (5) losses from divestitures, (6) impairments of tangible and intangible assets, (7) losses in respect of legal proceedings and dispute resolutions, and (8) losses from tax valuation allowances. The performance goals or the component values will also be adjusted to reflect the negative effects from applicable changes in accounting standards / policies or tax regulations after the date of this meeting. No adjustment herein shall limit any discretion provided by the Plan to increase or reduce the amount of a Participant’s Final Award as computed hereunder.

Return on Invested Capital (ROIC)

The vested percentage applicable to ROIC will be determined based on BWXT’s average annual ROIC (as calculated below) (“Average ROIC”) for the Performance Period in accordance with the following schedule:

Average ROICROIC Vested Percentage

xx.x% 50%

xx.x% 100%

xx.x% 200%

Vested percentages between the amounts shown will be calculated by linear interpolation. The vested percentage applicable to ROIC will be 0% if the Average ROIC for the Performance Period is below xx.x%. In no event will the vested percentage applicable to ROIC be greater than 200%.

ROIC will be calculated quarterly and the ROIC for any calendar year during the Performance Period will equal the sum of the four applicable quarterly ROIC calculations. Average ROIC will equal the sum of the three annual ROIC calculations during the Performance Period divided by three.

For purposes of this Agreement, the term “ROIC” is a ratio measure of BWXT’s net income in relation to BWXT’s invested capital, using the formula set forth below. For purposes of determining ROIC, net income is pre-tax income less tax expense calculated in accordance with U.S. generally accepted accounting principles. Invested capital is BWXT’s total assets less current liabilities. Current liabilities include any liabilities that are due within one calendar year and will be defined based on BWXT’s consolidated balance sheet applicable to the applicable period.

Net Income	=	Pre-tax Income - Tax Expense
Invested Capital		Total Assets - Current Liabilities

Diluted Earnings Per Share (EPS)

The vested percentage applicable to EPS will be determined based on BWXT’s cumulative EPS (as calculated below) (“Cumulative EPS”) for the Performance Period in accordance with the following schedule:

Cumulative EPSEPS Vested Percentage

$xx.x 50%

$xx.x 100%

$xx.x 200%

Vested percentages between the amounts shown will be calculated by linear interpolation. The vested percentage applicable to EPS will be 0% if the Cumulative EPS for the Performance Period is below $xx.x. In no event will the vested percentage applicable to EPS be greater than 200%.

EPS will be calculated for each calendar year during the Performance Period and Cumulative EPS for the Performance Period will equal the sum of the three applicable annual EPS calculations.

For purposes of this Agreement, the term “EPS” means BWXT’s net income attributable to stockholders of common stock for the applicable period divided by BWXT’s weighted average diluted shares outstanding for the applicable period. For purposes of determining EPS, net income attributable to stockholders of common stock is defined as “Net Income Attributable to BWX Technologies, Inc.” on BWXT’s Consolidated Statement of Income. Diluted shares outstanding will include all basic shares outstanding and any other dilutive securities for the period. If any securities are dilutive, the impact on the number of outstanding shares will be included in the denominator and the related income statement impact of the security will be removed from the numerator.

Diluted EPS	=	Net Income to Common Shareholders + Net Income Impact of Dilutive Securities
		WACSO assuming all Dilutive Securities are converted to Common Stock

WACSO represents weighted average common stock outstanding.

APPENDIX A

COUNTRY-SPECIFIC SPECIAL TERMS AND CONDITIONS

This Appendix A, which is part of the BWXT 2019 Performance Restricted Stock Units Grant Agreement (the “Agreement”), contains additional terms and conditions of the Agreement that will apply to you if you reside in one of the countries listed below. It also includes information about certain other issues of which you should be aware with respect to your participation in the Plan. Such information is based on securities, exchange control, and other laws in effect in the respective countries as of February 2019. Capitalized terms used but not defined herein shall have the same meanings assigned to them in the Plan and/or the Agreement. By accepting the Performance RSUs, you agree to be bound by the terms and conditions contained in the paragraphs below in addition to the terms of the Plan, the Agreement, and the terms of any other document that may apply to you and your Performance RSUs.

In addition, the information contained herein is general in nature and may not apply to your particular situation, and BWXT is not in a position to assure you of a particular result. Accordingly, you are advised to seek appropriate professional advice as to how the relevant laws in your country may apply to your situation.

Finally, if you are a citizen or resident of a country other than the one in which you are currently working, transferred employment after the Performance RSUs were granted to you, or are considered a resident of another country for local law purposes, the information contained herein may not apply.

COUNTRIES COVERED BY THIS APPENDIX A:

Canada.

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CANADA

Terms and Conditions

1. Nature of Grant. In accepting the grant of Performance RSUs, you acknowledge that:

· the Plan is established voluntarily by BWXT, is discretionary in nature and may be modified, amended, suspended or terminated by BWXT at any time;

· the grant of the Performance RSUs is voluntary and occasional and does not create any contractual or other right to receive future grants of Performance RSUs, or benefits in lieu of Performance RSUs, even if Performance RSUs have been granted repeatedly in the past;

· all decisions with respect to future Performance RSUs grants, if any, will be at the sole discretion of BWXT;

· you are voluntarily participating in the Plan;

· the Performance RSUs and the Shares subject to the Performance RSUs are an extraordinary item that does not constitute compensation of any kind for services of any kind rendered to BWXT or the Employer, and which is outside the scope of your employment contract, if any;

· the Performance RSUs and the Shares subject to the Performance RSUs are not intended to replace any pension rights or compensation;

· the Performance RSUs and the Shares subject to the Performance RSUs are not part of normal or expected compensation or salary for any purposes, including, but not limited to, calculating any severance, resignation, termination, redundancy, dismissal, end of service payments, bonuses, long-service awards, pension or retirement or welfare benefits or similar payments and in no event should be considered as compensation for, or relating in any way to, past services for BWXT, the Employer, or any Subsidiary;

· the Performance RSUs and your participation in the Plan will not be interpreted to form an employment contract or relationship with BWXT or any Subsidiary;

· the future value of the underlying Shares is unknown and cannot be predicted with certainty;

· in consideration of the grant of the Performance RSUs, no claim or entitlement to compensation or damages shall arise from forfeiture of the Performance RSUs resulting from termination of your service with BWXT or the Employer (for any reason whatsoever and whether or not in breach of local labor laws) and you irrevocably release BWXT and the Employer from any such claim that may arise; if, notwithstanding the foregoing, any such claim is found by a court of competent jurisdiction to have arisen, you shall be deemed irrevocably to have waive any entitlement to pursue such claim;

· in the event of termination of your service with BWXT (whether or not in breach of local labor laws), your right to vest in the Performance RSUs under the Plan, if any, will terminate effective as of the date that you are no longer actively providing services and will not be extended by any notice period mandated under local law (e.g., active service would not include a period of “garden leave” or similar period pursuant to local law); you hereby waive and release any claims you may have against BWXT, its subsidiaries, affiliates, employees, officers and directors for the termination of any such right to vest during such notice period; the Board/Committee shall have the exclusive discretion to determine when you are no longer actively providing services for purposes of the Performance RSUs; notwithstanding the foregoing, if your service terminates due to certain termination events as described in this Agreement, the Performance RSUs will be fully vested as of the date of death; and

· the Performance RSUs and the benefits under the Plan, if any, will not automatically transfer to another company in the case of a merger, take-over or transfer of liability.

2. Data Privacy. You hereby explicitly and unambiguously consent to the collection, use and transfer, in electronic or other form, of your personal data as described in this Agreement and any other award materials by and among, as applicable, the Employer, BWXT, and its Subsidiaries for the exclusive purpose of implementing, administering and managing your participation in the Plan.

You understand that BWXT and the Employer may hold certain personal information about you, including but not limited to, your name, home address, email address and telephone number, date of birth, social insurance number, passport number or other identification number, salary, nationality, job title, any Shares or directorships held in BWXT, details of all awards or any other entitlement to Shares granted, canceled, purchased, exercised, vested, unvested or outstanding in your favor, for the exclusive purpose of implementing, administering and managing the Plan (“Data”).

You understand that Data will be transferred to any third parties assisting BWXT with the implementation, administration and management of the Plan. You understand that the recipients of the Data may be located in the United States or elsewhere, and that the recipients’ country (e.g., the United States) may have different data privacy laws and protections than your country. You

understand that you may request a list with the names and addresses of any potential recipients of the Data by contacting your local human resources representative. You authorize BWXT and any other possible recipients which may assist BWXT (presently or in the future) with implementing, administering and managing the Plan to receive, possess, use, retain and transfer the Data, in electronic or other form, for the sole purpose of implementing, administering and managing your participation in the Plan. You understand that Data will be held only as long as is necessary to implement, administer and manage your participation in the Plan. You understand that you may, at any time, view Data, request additional information about the storage and processing of Data, require any necessary amendments to Data or refuse or withdraw the consents herein, in any case without cost, by contacting in writing your local human resources representative. You understand, however, that refusing or withdrawing your consent may affect your ability to participate in the Plan. For more information on the consequences of your refusal to consent or withdrawal of consent, you understand that you may contact your local human resources representative.

3. Settlement of Performance RSUs. Section 5 of the Agreement (the “Settlement of Performance RSUs” provision) is hereby amended in its entirety to read as follows:

“Settlement of Performance RSUs. You (or your beneficiary, if applicable) will receive one Share for each Performance RSU that vests under this Agreement. Such Shares shall be distributed to you as soon as administratively practicable after the Performance RSUs vest, but in no event later than March 15 following the end of the calendar year in which the Performance RSUs vest or, if earlier, at the latest by December 31 of the third year following the end of the year in which the Date of Grant occurred.

4.Language Consent. The following provision will apply to residents of Quebec:

The parties acknowledge that it is their express wish that this Agreement, as well as all documents, notices, and legal proceedings entered into, given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English.

Les parties reconnaissent avoir exigé la rédaction en anglais de cette convention, ainsi que de tous documents, avis et procédures judiciaires, exécutés, donnés ou intentés en vertu de, ou liés directement ou indirectement à la présente convention.

5. Dividend Equivalents Settled in Shares Only. Notwithstanding anything to the contrary in the Plan and/or this Agreement, any vested dividend equivalents will be settled in Shares.

6. Performance RSUs Settled in Shares Only. Notwithstanding anything to the contrary in the Plan and/or this Agreement, any Performance RSUs granted to you shall be paid in Shares only and do not provide any right to receive a cash payment.

7. Form of Payment. Due to legal restrictions in Canada and notwithstanding any language to the contrary in the Plan, you are prohibited from surrendering Shares that you already own or from attesting to the ownership of Shares to pay any tax withholding in connection with Performance RSUs granted to you.

Notifications

1. Additional Restrictions on Resale. In addition to the restrictions on resale and transfer noted in Plan materials, securities purchased under the Plan may be subject to certain restrictions on resale imposed by Canadian provincial securities laws. You are encouraged to seek legal advice prior to any resale of such securities. In general, participants resident in Canada may resell their securities in transactions carried out on exchanges outside of Canada and, in particular, you are generally permitted to sell Shares acquired pursuant to the Plan through the designated broker appointed under the Plan, if any, provided that BWXT is a foreign issuer that is not public in Canada and the sale of the Shares acquired pursuant to the Plan takes place: (i) through an exchange, or a market, outside of Canada on the distribution date; or (ii) to a person or company outside of Canada. For purposes hereof, a foreign issuer is an issuer that: (a) is not incorporated or existing pursuant to the laws of Canada or any jurisdiction of Canada; (b) does not have its head office in Canada; and (c) does not have a majority of its executive officers or directors ordinarily resident in Canada.

2. Tax Reporting. The Tax Act and the regulations thereunder require a Canadian resident individual (among others) to file an information return disclosing prescribed information where, at any time in a tax year, the total cost amount of such individual’s “specified foreign property” (which includes shares, options, restricted stock units, and performance-based restricted stock units) exceeds Cdn.$100,000. You should consult your own tax advisor regarding this reporting requirement.

EX-10.2

2019 RESTRICTED STOCK UNITS

GRANT AGREEMENT

To: ________________

By accepting your grant online through the Schwab Equity Award Center, you agree that these incentives are granted under and governed by the terms and conditions of the 2010 Long-Term Incentive Plan of BWX Technologies, Inc. (as amended and restated to date, the “Plan”), and this2019 Restricted Stock Units Grant Agreement, which is included in the online acceptance process. A copy of the Plan and the Prospectus relating to the stock issued under the Plan can be found at http://equityawardcenter.schwab.com under the “At a Glance/My Company Info” tab in your Schwab account. The Plan and Prospectus are incorporated by reference and made a part of the terms and conditions of your award. If you would like to receive a copy of either the Plan or Prospectus, please contact Kathy Peres at 980-625-4194 or kaperes@bwxt.com.

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Effective __________, 2019 (the “Date of Grant”), the Compensation Committee of the Board of Directors (the “Committee”) of BWX Technologies, Inc. (“BWXT”) awarded you a grant of Restricted Stock Units (“RSUs”) under the Plan. The provisions of the Plan are incorporated herein by reference and capitalized terms used but not otherwise defined in this Agreement have the meanings given them in the Plan.

Any reference or definition contained in this Agreement shall, except as otherwise specified, be construed in accordance with the terms and conditions of the Plan and all determinations and interpretations made by the Committee with regard to any question arising hereunder or under the Plan shall be binding and conclusive on you and your legal representatives and beneficiaries. The term “BWXT” as used in this Agreement with reference to employment shall include subsidiaries of BWXT (including unconsolidated joint ventures). Whenever the words “you” or “your” are used in any provision of this Agreement under circumstances where the provision should logically be construed to apply to the beneficiary, estate, or personal representative, to whom any rights under this Agreement may be transferred by will or by the laws of descent and distribution, it shall be deemed to include such person.

Restricted Stock Units

1. RSU Award. You have been awarded ___________ RSUs. Each RSU represents a right to receive one Share after the vesting of such RSU, as set forth in Section 2 of this Agreement (the “Vesting Requirements” provision).

2. Vesting Requirements. Subject to Section 3 of this Agreement (the “Forfeiture of RSUs” provision), the RSUs will become vested under one or more of the following circumstances, to the extent the RSUs have not previously vested or become forfeited as of the occurrence of such circumstance:

· in one-third (1/3) increments on the first, second and third anniversaries of the Date of Grant (the date of each, an “Anniversary Date”);

· if you Retire on or after the first anniversary of the Date of Grant and prior to the second anniversary of the Date of Grant, in one-half (1/2) increments of the then-outstanding and unvested RSUs on the second and third anniversaries of the Date of Grant;

· if you Retire on or after the second anniversary of the Date of Grant and prior to the third anniversary of the Date of Grant, 100% of the then-outstanding and unvested RSUs on the third anniversary of the Date of Grant;

· 100% of the then-outstanding and unvested RSUs on the earliest of the following to occur prior to the third anniversary of the Date of Grant: (a) your death, (b) your Disability or (c) the date of a Change in Control; and

· the Committee may provide for additional vesting under other circumstances, in its sole discretion.

For purposes of this Agreement, the term “Retire” means to terminate employment with BWXT after attaining (i) at least 60 years of age and (ii) at least [5] [10] years of service with BWXT (with years of service calculated by reference from your “adjusted service date,” as determined by the Company).

3. Forfeiture of RSUs. Except if you Retire on or after the first anniversary of the Date of Grant, RSUs which are not or do not become vested upon your termination of employment shall, coincident therewith, terminate and be of no force or effect.

In the event that (a) you are convicted of (i) a felony or (ii) a misdemeanor involving fraud, dishonesty or moral turpitude, or (b) you engage in conduct that adversely affects or may reasonably be expected to adversely affect the business reputation or economic interests of BWXT, as determined in the sole judgment of the Committee, then all RSUs and all rights or benefits awarded to you under this grant of RSUs are forfeited, terminated and withdrawn immediately upon such conviction or notice of such determination. The Committee shall have the right to suspend any and all rights or benefits awarded to you hereunder pending its investigation and final determination with regard to such matters. The forfeiture provisions of this paragraph are in addition to the provisions under the heading “Clawback Provisions” below.

4. Settlement of RSUs. If you have made a permitted deferral election with respect to the RSUs, then, subject to compliance with Section 409A of the Code (to the extent applicable), vested RSUs shall be paid to you in accordance with such deferral election. If you have not made a permitted deferral election with respect to the RSUs, vested RSUs shall be paid to you in the form of Shares within 10 days of each Anniversary Date, with an accelerated settlement of vested RSUs on the first of the following events to occur:

· the occurrence of a Change in Control, unless such Change in Control does not constitute a “change in control” for purposes of Section 409A(a)(2)(A)(v) of the Code;

· your death; or

· your Disability.

5. Dividend, Voting Rights and Other Rights. You shall have no rights of ownership in the Shares underlying the RSUs and shall have no right to vote such Shares until the date on which the Shares are transferred to you pursuant hereto. From and after the Date of Grant and until the earlier of (a) the time when the RSUs become vested and are paid in accordance with Section 4 hereof or (b) the time when your right to receive Shares in payment of the RSUs is forfeited in accordance with Section 3 hereof, on the date that BWX Technologies, Inc. pays a cash dividend (if any) to holders of Shares generally, you shall be credited with cash per RSU equal to the amount of such dividend. Any amounts credited pursuant to the immediately preceding sentence shall be subject to the same applicable terms and conditions (including vesting, payment and forfeitability) as apply to the RSUs based on which the dividend equivalents were credited, and such amounts shall be paid in cash at the same time as the RSUs to which they relate.

Taxes

6. Liability for Tax-Related Items. Regardless of any action BWXT or your employer (the “Employer”) takes with respect to any or all income tax, social insurance, payroll tax, or other tax-related withholding (“Tax-Related Items”), you acknowledge and agree that the ultimate liability for all Tax-Related Items legally due by you is and remains your responsibility and that BWXT and/or the Employer (i) make no representations nor undertakings regarding the treatment of any Tax-Related Items in connection with any aspect of this grant of RSUs, including the grant and vesting of RSUs, subsequent delivery of Shares or the subsequent sale of any Shares acquired pursuant to such RSUs and receipt of any dividend equivalent payments (if any) and (ii) do not commit to structure the terms or any aspect of this grant of RSUs to reduce or eliminate your liability for Tax-Related Items. Prior to the taxable or tax withholding event, as applicable, you shall pay, or make adequate arrangements satisfactory to BWXT or to the Employer to satisfy all Tax-Related Items. In this regard, you authorize BWXT or Employer to withhold all applicable Tax-Related Items legally payable by you, and unless determined otherwise by the Committee, BWXT or Employer will withhold a number of Shares otherwise deliverable equal to the minimum statutory withholding amount to satisfy such liability. If the obligation for Tax-Related Items is satisfied by withholding a number of Shares as described herein, you understand that you will be deemed to have been issued the full number of Shares subject to the settled RSUs, notwithstanding that a number of Shares are held back solely for the purpose of paying the Tax-Related Items due as a result of the settlement of the RSUs. Notwithstanding anything herein to the contrary, if the Federal Insurance Contributions Act tax (“FICA Tax”) imposed under Sections 3101, 3121(a) and 3121(v)(2) of the Code becomes due with respect to any of the RSUs prior to the payment of such RSUs, BWXT or Employee will withhold from your cash compensation an amount sufficient to pay the FICA Tax with respect to such RSUs.

Transferability

7. Non-Transferability. RSUs granted hereunder are non-transferable other than by will or by the laws of descent and distribution or pursuant to a qualified domestic relations order.

Clawback Provisions

8. Recovery of RSUs.  In the event that BWXT is required to prepare an accounting restatement due to the material noncompliance of BWXT with any financial reporting requirement under the U.S. federal securities laws as a result of fraud (a “Restatement”) and the Board reasonably determines that you knowingly engaged in the fraud, BWXT will have the right to recover the RSUs granted during the three-year period preceding the date on which the Board or BWXT, as applicable, determines it is required to prepare the Restatement (the “Three-Year Period”), or vested in whole or in part during the Three-Year Period, to the extent of any excess of what would have been granted to or would have vested for you under the Restatement.

9. Recovery Process.  In the event a Restatement is required, the Board, based upon a recommendation by the Committee, will (a) review the RSUs either granted or vested in whole or in part during the Three-Year Period and (b) in accordance with the provisions of this Agreement and the Plan, will take reasonable action to seek recovery of the amount of such RSUs in excess of what would have been granted to or would have vested for you under the Restatement (but in no event more than the total amount of such RSUs), as such excess amount is reasonably determined by the Board in its sole discretion, in compliance with Section 409A of the Code.  There shall be no duplication of recovery under Article 19 of the Plan and any of 15 U.S.C. Section 7243 (Section 304 of The Sarbanes-Oxley Act of 2002) and Section 10D of the Exchange Act. The clawback provisions of this Agreement are in addition to the forfeiture provisions contained in Section 3 of this Agreement (under the heading “Forfeiture of RSUs”). Notwithstanding anything in this Agreement to the contrary, you acknowledge and agree that this Agreement and the award described herein

(and any settlement thereof) are subject to the terms and conditions of the Company’s clawback policy (if any) as may be in effect from time to time specifically to implement Section 10D of the Exchange Act, and any applicable rules or regulations promulgated thereunder (including applicable rules and regulations of any national securities exchange on which the Shares may be traded) (the “Compensation Recovery Policy”), and that Sections 8 and 9 of this Agreement shall be deemed superseded by and subject to the terms and conditions of the Compensation Recovery Policy from and after the effective date thereof.

Other Information

10.No Guarantee of Continued Service. Neither the action of BWXT in establishing the Plan, nor any action taken by it, by the Committee or by your employer, nor any provision of the Plan or this Agreement shall be construed as conferring upon you the right to be retained in the employ of BWXT.

11.Adjustments. The RSUs evidenced by this Agreement are subject to adjustment as provided in Sections 4.3 and 15.2 of the Plan.

12.Compliance with Section 409A of the Code. To the extent applicable, it is intended that this Agreement and the Plan comply with the provisions of Section 409A of the Code. This Agreement and the Plan shall be administered in a manner consistent with this intent, and any provision that would cause this Agreement or the Plan to fail to satisfy Section 409A of the Code shall have no force or effect until amended to comply with Section 409A of the Code (which amendment may be retroactive to the extent permitted by Section 409A of the Code and may be made by BWXT without your consent). Any reference in this Agreement to Section 409A of the Code will also include any proposed, temporary or final regulations, or any other guidance, promulgated with respect to such Section by the U.S. Department of the Treasury or the Internal Revenue Service.

13.Electronic Delivery. BWXT may, in its sole discretion, deliver any documents related to the RSUs and your participation in the Plan, or future awards that may be granted under the Plan, by electronic means or request your consent to participate in the Plan by electronic means. You hereby consent to receive such documents by electronic delivery and, if requested, agree to participate in the Plan through an on-line or electronic system established and maintained by BWXT or another third party designated by BWXT.

14.Severability. In the event that one or more of the provisions of this Agreement shall be invalidated for any reason by a court of competent jurisdiction, any provision so invalidated shall be deemed to be separable from the other provisions hereof, and the remaining provisions hereof shall continue to be valid and fully enforceable.

15.Successors and Assigns. Without limiting Section 7 hereof, the provisions of this Agreement shall inure to the benefit of, and be binding upon, your successors, administrators, heirs, legal representatives and assigns, and the successors and assigns of the Company.

16.Acknowledgement. You acknowledge that you (a) have received a copy of the Plan, (b) have had an opportunity to review the terms of this Agreement and the Plan, (c) understand the terms and conditions of this Agreement and the Plan and (d) agree to such terms and conditions.

17.Country-Specific Special Terms and Conditions. Notwithstanding any provisions in this Agreement, the RSUs shall also be subject to the special terms and conditions set forth in Appendix A to this Agreement

for your country of residence. Moreover, if you relocate to one of the countries included on Appendix A, the special terms and conditions for such country will apply to you, to the extent BWXT determines that the application of such terms and conditions are necessary or advisable in order to comply with local law or facilitate the administration of the Plan. Appendix A constitutes part of this Agreement.

18.Notice to Governmental Authority. Notwithstanding anything in this Agreement to the contrary, nothing in this Agreement prevents you from providing, without prior notice to BWXT, information to governmental authorities regarding possible legal violations or otherwise testifying or participating in any investigation or proceeding by any governmental authorities regarding possible legal violations, and for purpose of clarity you are not prohibited from providing information voluntarily to the Securities and Exchange Commission pursuant to Section 21F of the 1934 Act.

APPENDIX A

COUNTRY-SPECIFIC SPECIAL TERMS AND CONDITIONS

This Appendix A, which is part of the BWXT 2019 Restricted Stock Units Grant Agreement (the “Agreement”), contains additional terms and conditions of the Agreement that will apply to you if you reside in one of the countries listed below. It also includes information about certain other issues of which you should be aware with respect to your participation in the Plan. Such information is based on securities, exchange control, and other laws in effect in the respective countries as of February 2019. Capitalized terms used but not defined herein shall have the same meanings assigned to them in the Plan and/or the Agreement. By accepting the RSUs, you agree to be bound by the terms and conditions contained in the paragraphs below in addition to the terms of the Plan, the Agreement, and the terms of any other document that may apply to you and your RSUs.

In addition, the information contained herein is general in nature and may not apply to your particular situation, and BWXT is not in a position to assure you of a particular result. Accordingly, you are advised to seek appropriate professional advice as to how the relevant laws in your country may apply to your situation.

Finally, if you are a citizen or resident of a country other than the one in which you are currently working, transferred employment after the RSUs were granted to you, or are considered a resident of another country for local law purposes, the information contained herein may not apply.

COUNTRIES COVERED BY THIS APPENDIX A:

Canada.

---------------------------------------------------------------------------------------------------------------------

CANADA

Terms and Conditions

1. Nature of Grant. In accepting the grant of RSUs, you acknowledge that:

· the Plan is established voluntarily by BWXT, is discretionary in nature and may be modified, amended, suspended or terminated by BWXT at any time;

· the grant of the RSUs is voluntary and occasional and does not create any contractual or other right to receive future grants of RSUs, or benefits in lieu of RSUs, even if RSUs have been granted repeatedly in the past;

· all decisions with respect to future RSUs grants, if any, will be at the sole discretion of BWXT;

· you are voluntarily participating in the Plan;

· the RSUs and the Shares subject to the RSUs are an extraordinary item that does not constitute compensation of any kind for services of any kind rendered to BWXT or the Employer, and which is outside the scope of your employment contract, if any;

· the RSUs and the Shares subject to the RSUs are not intended to replace any pension rights or compensation;

· the RSUs and the Shares subject to the RSUs are not part of normal or expected compensation or salary for any purposes, including, but not limited to, calculating any severance, resignation, termination, redundancy, dismissal, end of service payments, bonuses, long-service awards, pension or retirement or welfare benefits or similar payments and in no event should be considered as compensation for, or relating in any way to, past services for BWXT, the Employer, or any Subsidiary;

· the RSUs and your participation in the Plan will not be interpreted to form an employment contract or relationship with BWXT or any Subsidiary;

· the future value of the underlying Shares is unknown and cannot be predicted with certainty;

· in consideration of the grant of the RSUs, no claim or entitlement to compensation or damages shall arise from forfeiture of the RSUs resulting from termination of your service with BWXT or the Employer (for any reason whatsoever and whether or not in breach of local labor laws) and you irrevocably release BWXT and the Employer from any such claim that may arise; if, notwithstanding the foregoing, any such claim is found by a court of competent jurisdiction to have arisen, you shall be deemed irrevocably to have waive any entitlement to pursue such claim;

· in the event of termination of your service with BWXT (whether or not in breach of local labor laws), your right to vest in the RSUs under the Plan, if any, will terminate effective as of the date that you are no longer actively providing services and will not be extended by any notice period mandated under local law (e.g., active service would not include a period of “garden leave” or similar period pursuant to local law); you hereby waive and release any claims you may have against BWXT, its subsidiaries, affiliates, employees, officers and directors for the termination of any such right to vest during such notice period; the Board/Committee shall have the exclusive discretion to determine when you are no longer actively providing services for purposes of the RSUs; notwithstanding the foregoing, if your service terminates due to certain termination events as described in this Agreement, the RSUs will be fully vested; and

· the RSUs and the benefits under the Plan, if any, will not automatically transfer to another company in the case of a merger, take-over or transfer of liability.

2. Data Privacy. You hereby explicitly and unambiguously consent to the collection, use and transfer, in electronic or other form, of your personal data as described in this Agreement and any other award materials by and among, as applicable, the Employer, BWXT, and its Subsidiaries for the exclusive purpose of implementing, administering and managing your participation in the Plan.

You understand that BWXT and the Employer may hold certain personal information about you, including, but not limited to, your name, home address, email address and telephone number, date of birth, social insurance number, passport number or other identification number, salary, nationality, job title, any Shares or directorships held in BWXT, details of all awards or any other entitlement to Shares granted, canceled, purchased, exercised, vested, unvested or outstanding in your favor, for the exclusive purpose of implementing, administering and managing the Plan (“Data”).

You understand that Data will be transferred to any third parties assisting BWXT with the implementation, administration and management of the Plan. You understand that the recipients of the Data may be located in the United States or elsewhere, and that the recipients’ country (e.g., the United States) may have different data privacy laws and protections than your country. You

understand that you may request a list with the names and addresses of any potential recipients of the Data by contacting your local human resources representative. You authorize BWXT and any other possible recipients which may assist BWXT (presently or in the future) with implementing, administering and managing the Plan to receive, possess, use, retain and transfer the Data, in electronic or other form, for the sole purpose of implementing, administering and managing your participation in the Plan. You understand that Data will be held only as long as is necessary to implement, administer and manage your participation in the Plan. You understand that you may, at any time, view Data, request additional information about the storage and processing of Data, require any necessary amendments to Data or refuse or withdraw the consents herein, in any case without cost, by contacting in writing your local human resources representative. You understand, however, that refusing or withdrawing your consent may affect your ability to participate in the Plan. For more information on the consequences of your refusal to consent or withdrawal of consent, you understand that you may contact your local human resources representative.

3. Settlement of RSUs. Section 4 of the Agreement (the “Settlement of RSUs” provision) is amended in its entirety to read as follows:

“Settlement of RSUs. Vested RSUs shall be paid to you in the form of Shares within 10 days of each Anniversary Date, with an accelerated settlement of vested RSUs on the first of the following events to occur:

· the occurrence of a Change in Control, unless such Change in Control does not constitute a “change in control” for purposes of Section 409A(a)(2)(A)(v) of the Code;

· your death; or

· your Disability.”

4.Language Consent. The following provision will apply to residents of Quebec:

The parties acknowledge that it is their express wish that this Agreement, as well as all documents, notices, and legal proceedings entered into, given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English.

Les parties reconnaissent avoir exigé la rédaction en anglais de cette convention, ainsi que de tous documents, avis et procédures judiciaires, exécutés, donnés ou intentés en vertu de, ou liés directement ou indirectement à la présente convention.

5. Dividend Equivalents Settled in Shares Only. Notwithstanding anything to the contrary in the Plan and/or this Agreement, any vested dividend equivalents will be settled in Shares.

6. RSUs Settled in Shares Only. Notwithstanding anything to the contrary in the Plan and/or this Agreement, any RSUs granted to you shall be paid in Shares only and do not provide any right to receive a cash payment.

7. Form of Payment. Due to legal restrictions in Canada and notwithstanding any language to the contrary in the Plan, you are prohibited from surrendering Shares that you already own or from attesting to the ownership of Shares to pay any tax withholding in connection with RSUs granted to you.

Notifications

1. Additional Restrictions on Resale. In addition to the restrictions on resale and transfer noted in Plan materials, securities purchased under the Plan may be subject to certain restrictions on resale imposed by Canadian provincial securities laws. You are encouraged to seek legal advice prior to any resale of such securities. In general, participants resident in Canada may resell their securities in transactions carried out on exchanges outside of Canada and, in particular, you are generally permitted to sell Shares acquired pursuant to the Plan through the designated broker appointed under the Plan, if any, provided that BWXT is a foreign issuer that is not public in Canada and the sale of the Shares acquired pursuant to the Plan takes place: (i) through an exchange, or a market, outside of Canada on the distribution date; or (ii) to a person or company outside of Canada. For purposes hereof, a foreign issuer is an issuer that: (a) is not incorporated or existing pursuant to the laws of Canada or any jurisdiction of Canada; (b) does not have its head office in Canada; and (c) does not have a majority of its executive officers or directors ordinarily resident in Canada.

2. Tax Reporting. The Tax Act and the regulations thereunder require a Canadian resident individual (among others) to file an information return disclosing prescribed information where, at any time in a tax year, the total cost amount of such individual’s “specified foreign property” (which includes shares, options, restricted stock units, and performance-based restricted stock units) exceeds Cdn.$100,000. You should consult your own tax advisor regarding this reporting requirement.

EX-31.1

EXHIBIT 31.1

CERTIFICATION

I, Rex D. Geveden, certify that:

1. I have reviewed this quarterly report on Form 10-Q of BWX Technologies, Inc. for the quarterly period ended March 31, 2019;

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 most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) 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.

May 1, 2019

/s/ Rex D. Geveden

Rex D. Geveden

President and Chief Executive Officer

EX-31.2

EXHIBIT 31.2

CERTIFICATION

I, David S. Black, certify that:

1. I have reviewed this quarterly report on Form 10-Q of BWX Technologies, Inc. for the quarterly period ended March 31, 2019;

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 most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) 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.

May 1, 2019

/s/ David S. Black

David S. Black

Senior Vice President and Chief Financial Officer

EX-32.1

EXHIBIT 32.1

BWX TECHNOLOGIES, INC.

Certification Pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002

(Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), I, Rex D. Geveden, President and Chief Executive Officer of BWX Technologies, Inc., a Delaware corporation (the “Company”), hereby certify, to my knowledge, that:

(1) the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2019 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

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

Dated: May 1, 2019	/s/ Rex D. Geveden
	Rex D. Geveden
	President and Chief Executive Officer

The foregoing certification is being furnished solely pursuant to 18 U.S.C. Section 1350 and is not being filed as part of the Report or as a separate disclosure document.

EX-32.2

EXHIBIT 32.2

BWX TECHNOLOGIES, INC.

Certification Pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002

(Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), I, David S. Black, Senior Vice President and Chief Financial Officer of BWX Technologies, Inc., a Delaware corporation (the “Company”), hereby certify, to my knowledge, that:

(1) the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2019 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

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

Dated: May 1, 2019	/s/ David S. Black
	David S. Black
	Senior Vice President and Chief Financial Officer

The foregoing certification is being furnished solely pursuant to 18 U.S.C. Section 1350 and is not being filed as part of the Report or as a separate disclosure document.

XML

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2019	Apr. 29, 2019
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
Trading Symbol	BWXT
Entity Registrant Name	BWX Technologies, Inc.
Entity Central Index Key	0001486957
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding (in shares)		95,149,979

XML

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Current Assets:
Cash and cash equivalents	$ 22,976	$ 29,871
Restricted cash and cash equivalents	4,024	3,834
Investments	3,601	3,597
Accounts receivable – trade, net	65,255	71,574
Accounts receivable – other	12,038	13,374
Retainages	72,000	57,885
Contracts in progress	351,953	318,454
Other current assets	45,717	43,859
Total Current Assets	577,564	542,448
Property, Plant and Equipment	1,150,110	1,132,392
Less accumulated depreciation	696,095	693,153
Net Property, Plant and Equipment	454,015	439,239
Investments	8,598	7,382
Goodwill	275,604	274,082
Deferred Income Taxes	61,154	63,908
Investments in Unconsolidated Affiliates	65,320	63,746
Intangible Assets	194,116	228,676
Other Assets	80,415	35,615
TOTAL	1,716,786	1,655,096
Current Liabilities:
Current maturities of long-term debt	14,383	14,227
Accounts payable	98,455	114,751
Accrued employee benefits	56,342	77,386
Accrued liabilities – other	58,032	62,163
Advance billings on contracts	88,117	98,477
Accrued warranty expense	10,431	10,344
Total Current Liabilities	325,760	377,348
Long-Term Debt	856,005	753,617
Accumulated Postretirement Benefit Obligation	19,223	19,236
Environmental Liabilities	87,972	86,372
Pension Liability	169,939	173,469
Other Liabilities	15,013	9,353
Commitments and Contingencies (Note 5)
Stockholders' Equity:
Common stock, par value $0.01 per share, authorized 325,000,000 shares; issued 126,379,796 and 125,871,866 shares at March 31, 2019 and December 31, 2018, respectively	1,264	1,259
Preferred stock, par value $0.01 per share, authorized 75,000,000 shares; No shares issued	0	0
Capital in excess of par value	119,525	115,725
Retained earnings	1,198,198	1,166,762
Treasury stock at cost, 31,243,844 and 30,625,074 shares at March 31, 2019 and December 31, 2018, respectively	(1,066,822)	(1,037,795)
Accumulated other comprehensive income	(9,316)	(10,289)
Stockholders' Equity – BWX Technologies, Inc.	242,849	235,662
Noncontrolling interest	25	39
Total Stockholders' Equity	242,874	235,701
TOTAL	$ 1,716,786	$ 1,655,096

XML

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Common stock, par value (in usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	325,000,000	325,000,000
Common stock, shares issued (in shares)	126,379,796	125,871,866
Preferred stock, par value (in usd per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	75,000,000	75,000,000
Preferred stock, shares issued (in shares)	0	0
Treasury stock at cost, shares (in shares)	31,243,844	30,625,074

XML

Condensed Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Income Statement [Abstract]
Revenues	$ 416,454	$ 457,463
Costs and Expenses:
Cost of operations	303,635	327,364
Research and development costs	5,174	3,607
Losses (gains) on asset disposals and impairments, net	0	(8)
Selling, general and administrative expenses	51,683	53,762
Total Costs and Expenses	360,492	384,725
Equity in Income of Investees	7,682	7,150
Operating Income	63,644	79,888
Other Income (Expense):
Interest income	415	778
Interest expense	(8,703)	(3,560)
Other – net	7,521	7,910
Total Other Income (Expense)	(767)	5,128
Income before Provision for Income Taxes	62,877	85,016
Provision for Income Taxes	13,767	18,603
Net Income	49,110	66,413
Net (Income) Loss Attributable to Noncontrolling Interest	(132)	28
Net Income Attributable to BWX Technologies, Inc.	$ 48,978	$ 66,441
Basic:
Net Income Attributable to BWX Technologies, Inc. (in usd per share)	$ 0.51	$ 0.67
Diluted:
Net Income Attributable to BWX Technologies, Inc. (in usd per share)	$ 0.51	$ 0.66
Shares used in the computation of earnings per share (Note 9):
Basic (in shares)	95,255,109	99,526,187
Diluted (in shares)	95,821,354	100,512,287

XML

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Net Income	$ 49,110	$ 66,413
Other Comprehensive Income (Loss):
Currency translation adjustments	943	(3,124)
Derivative financial instruments:
Unrealized (losses) gains arising during the period, net of tax benefit (provision) of $164 and $(59), respectively	(441)	173
Reclassification adjustment for gains included in net income, net of tax provision of $49 and $30, respectively	(141)	(79)
Amortization of benefit plan costs, net of tax benefit of $(136) and $(183), respectively	511	322
Investments:
Unrealized gains (losses) arising during the period, net of tax provision of $(7) and $0, respectively	24	(66)
Other Comprehensive Income (Loss)	896	(2,774)
Total Comprehensive Income	50,006	63,639
Comprehensive Income Attributable to Noncontrolling Interest	(132)	28
Comprehensive Income Attributable to BWX Technologies, Inc.	$ 49,874	$ 63,667

XML

Condensed Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Tax provision of unrealized gains on derivative financial instruments	$ 164	$ (59)
Tax provision (benefit) on reclassification adjustment for (gains) losses on derivative financial instruments	49	30
Tax benefit of amortization of benefit plan costs	(136)	(183)
Tax (provision) benefit of unrealized gains (losses)	$ (7)	$ 0

XML

Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Capital In Excess of Par Value	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Stockholders' Equity	Noncontrolling Interest
Beginning balance (in shares) at Dec. 31, 2017		125,381,591
Beginning balance at Dec. 31, 2017	$ 285,757	$ 1,254	$ 98,843	$ 990,652	$ 9,454	$ (814,809)	$ 285,394	$ 363
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	66,413			66,441			66,441	(28)
Dividends declared	(16,174)			(16,174)			(16,174)
Currency translation adjustments	(3,124)				(3,124)		(3,124)
Derivative financial instruments	94				94		94
Defined benefit obligations	322				322		322
Available-for-sale investments	(66)				(66)		(66)
Exercise of stock options (in shares)		159,126
Exercises of stock options	3,807	$ 1	3,806				3,807
Shares placed in treasury	(5,940)		0			(5,940)	(5,940)
Stock-based compensation charges (in shares)		181,317
Stock-based compensation charges	4,461	$ 2	4,459				4,461
Distributions to noncontrolling interests	(226)							(226)
Ending balance (in shares) at Mar. 31, 2018		125,722,034
Ending balance at Mar. 31, 2018	$ 345,250	$ 1,257	107,108	1,054,230	3,295	(820,749)	345,141	109
Beginning balance (in shares) at Dec. 31, 2018	125,871,866	125,871,866
Beginning balance at Dec. 31, 2018	$ 235,701	$ 1,259	115,725	1,166,762	(10,289)	(1,037,795)	235,662	39
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	49,110			48,978			48,978	132
Dividends declared	(16,323)			(16,323)			(16,323)
Currency translation adjustments	943				943		943
Derivative financial instruments	(582)				(582)		(582)
Defined benefit obligations	511				511		511
Available-for-sale investments	24				24		24
Exercise of stock options (in shares)		58,655
Exercises of stock options	1,276	$ 1	1,275				1,276
Shares placed in treasury	(29,027)					(29,027)	(29,027)
Stock-based compensation charges (in shares)		449,275
Stock-based compensation charges	2,529	$ 4	2,525				2,529
Distributions to noncontrolling interests	$ (146)							(146)
Ending balance (in shares) at Mar. 31, 2019	126,379,796	126,379,796
Ending balance at Mar. 31, 2019	$ 242,874	$ 1,264	$ 119,525	$ 1,198,198	$ (9,316)	$ (1,066,822)	$ 242,849	$ 25

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Condensed Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Stockholders' Equity [Abstract]
Dividends declared per share (in usd per share)	$ 0.17	$ 0.16

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Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$ 49,110	$ 66,413
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	15,122	14,061
Income of investees, net of dividends	(2,960)	(2,299)
Recognition of losses for pension and postretirement plans	647	505
Stock-based compensation expense	2,529	4,461
Changes in assets and liabilities:
Accounts receivable	5,812	27,387
Accounts payable	1,612	10,528
Increase (Decrease) in Deposit Assets	(13,949)	(10,444)
Contracts in progress and advance billings on contracts	(43,735)	(74,153)
Income taxes	7,559	(5,502)
Accrued and other current liabilities	(10,748)	364
Pension liabilities, accrued postretirement benefit obligations and employee benefits	(25,876)	(48,929)
Other, net	(2,846)	(997)
NET CASH USED IN OPERATING ACTIVITIES	(17,723)	(18,605)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(44,519)	(17,634)
Purchases of securities	(1,786)	(1,033)
Sales and maturities of securities	1,800	2,948
Other, net	0	8
NET CASH USED IN INVESTING ACTIVITIES	(44,505)	(15,711)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings of long-term debt	212,500	0
Repayments of long-term debt	(113,457)	(6,951)
Repurchases of common shares	(20,000)	0
Dividends paid to common shareholders	(16,797)	(15,947)
Exercises of stock options	823	2,525
Cash paid for shares withheld to satisfy employee taxes	(8,574)	(4,657)
Other	943	(226)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	55,438	(25,256)
EFFECTS OF EXCHANGE RATE CHANGES ON CASH	104	(2,236)
TOTAL DECREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AND CASH EQUIVALENTS	(6,686)	(61,808)
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	36,408	213,144
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AND CASH EQUIVALENTS AT END OF PERIOD	29,722	151,336
Cash paid during the period for:
Interest	14,767	3,463
Income taxes (net of refunds)	6,191	24,370
SCHEDULE OF NON-CASH INVESTING ACTIVITY:
Accrued capital expenditures included in accounts payable	$ 11,249	$ 4,735

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Basis of Presentation and Significant Accounting Policies

3 Months Ended

Mar. 31, 2019

Accounting Policies [Abstract]

Basis of Presentation and Significant Accounting Policies

BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES

We have presented the condensed consolidated financial statements of BWX Technologies, Inc. ("BWXT" or the "Company") in U.S. dollars in accordance with the interim reporting requirements of Form 10-Q, Rule 10-01 of Regulation S-X and accounting principles generally accepted in the United States ("GAAP"). Certain financial information and disclosures normally included in our financial statements prepared annually in accordance with GAAP have been condensed or omitted. Readers of these financial statements should, therefore, refer to the consolidated financial statements and notes in our annual report on Form 10-K for the year ended December 31, 2018 (our "2018 10-K"). We have included all adjustments, in the opinion of management, consisting only of normal recurring adjustments, necessary for a fair presentation.

We use the equity method to account for investments in entities that we do not control, but over which we have the ability to exercise significant influence. We generally refer to these entities as "joint ventures." We have eliminated all intercompany transactions and accounts. We have reclassified certain amounts previously reported to conform to the presentation at March 31, 2019 and for the three months ended March 31, 2019 primarily related to the adoption of new accounting standards. We present the notes to our condensed consolidated financial statements on the basis of continuing operations, unless otherwise stated.

Unless the context otherwise indicates, "we," "us" and "our" mean BWXT and its consolidated subsidiaries.

Reportable Segments

We operate in three reportable segments: Nuclear Operations Group, Nuclear Power Group and Nuclear Services Group. Our reportable segments are further described as follows:

• Our Nuclear Operations Group segment manufactures naval nuclear reactors for the Naval Nuclear Propulsion Program for use in submarines and aircraft carriers. Through this segment, we own and operate manufacturing facilities located in Lynchburg, Virginia; Barberton, Ohio; Mount Vernon, Indiana; Euclid, Ohio; and Erwin, Tennessee. The Lynchburg operations fabricate fuel-bearing precision components that range in weight from a few grams to hundreds of tons. In-house capabilities also include wet chemistry uranium processing, advanced heat treatment to optimize component material properties and a controlled, clean-room environment with the capacity to assemble railcar-size components. The Barberton and Mount Vernon locations specialize in the design and manufacture of heavy components inclusive of development and fabrication activities for submarine missile launch tubes. The Euclid facility fabricates electro-mechanical equipment and performs design, manufacturing, inspection, assembly and testing activities. Fuel for the naval nuclear reactors is provided by Nuclear Fuel Services, Inc. ("NFS"), one of our wholly owned subsidiaries. Located in Erwin, NFS also downblends Cold War-era government stockpiles of high-enriched uranium into material suitable for further processing into commercial nuclear reactor fuel.

• Our Nuclear Power Group segment fabricates commercial nuclear steam generators, nuclear fuel, fuel handling systems, pressure vessels, reactor components, heat exchangers, tooling delivery systems and other auxiliary equipment, including containers for the storage of spent nuclear fuel and other high-level waste, for nuclear utility customers. BWXT has supplied the nuclear industry with more than 1,300 large, heavy components worldwide and is the only commercial heavy nuclear component manufacturer in North America. This segment also provides specialized engineering services that include structural component design, 3-D thermal-hydraulic engineering analysis, weld and robotic process development, electrical and controls engineering and metallurgy and materials engineering. In addition, this segment offers in-plant inspection, maintenance and modification services for nuclear steam generators, heat exchangers, reactors, fuel handling systems and balance of plant equipment, as well as specialized non-destructive examination and tooling/repair solutions. This segment is also a leading global manufacturer and supplier of critical medical radioisotopes and radiopharmaceuticals for research, diagnostic and therapeutic uses. See Note 2 for information about a recent acquisition related to this segment.

• Our Nuclear Services Group segment provides various services to the U.S. Government and the commercial nuclear industry. Services provided to the U.S. Government include nuclear materials management and operation, environmental management and administrative and operating services for various U.S. Government-owned facilities. These services are provided to the U.S. Department of Energy ("DOE"), including the National Nuclear Security Administration ("NNSA"), the Office of Nuclear Energy, the Office of Science and the Office of Environmental Management, and NASA. Through this segment we deliver services and management solutions to nuclear and high-consequence operations. A significant portion of this segment's operations are conducted through joint ventures.

Our Nuclear Services Group segment is also engaged in inspection and maintenance services for the commercial nuclear industry primarily in the U.S. These services include steam generator, heat exchanger and balance of plant inspection and servicing as well as high pressure water lancing, non-destructive examination and the development of customized tooling solutions. This segment also offers complete advanced nuclear fuel and reactor design and engineering, licensing and manufacturing services for new advanced nuclear reactors and other nuclear technologies.

See Note 8 for financial information about our segments. Operating results for the three months ended March 31, 2019 are not necessarily indicative of the results that may be expected for the year ending December 31, 2019. For further information, refer to the consolidated financial statements and notes included in our 2018 10-K.

Recently Adopted Accounting Standards

In February 2016, the FASB issued an update to the Topic Leases, which supersedes the lease reporting requirements in Topic Leases (previously "FAS 13"). This update requires that a lessee recognize on its balance sheets the assets and liabilities for all leases with lease terms of more than 12 months, along with additional qualitative and quantitative disclosures. We adopted this update on January 1, 2019 using the modified retrospective method, which resulted in the recognition of right-of-use assets totaling $45.1 million and lease liabilities totaling $11.9 million. The difference between the right-of-use assets and lease liabilities of $33.2 million was primarily the result of reclassifications of favorable leases related to recent acquisitions from Intangible Assets. In addition, we elected the package of practical expedients permitted under the transition guidance, which allowed us to carry forward our historical lease classifications, among other things. The adoption of the provisions in this update did not have an impact on our condensed consolidated statements of income or cash flows.

Contracts and Revenue Recognition

We generally recognize contract revenues and related costs over time for individual performance obligations based on a cost-to-cost method in accordance with Financial Accounting Standards Board ("FASB") Topic Revenue from Contracts with Customers. We recognize estimated contract revenue and resulting income based on the measurement of the extent of progress toward completion as a percentage of the total project. Certain costs may be excluded from the cost-to-cost method of measuring progress, such as significant costs for uninstalled materials, if such costs do not depict our performance in transferring control of goods or services to the customer. We review contract price and cost estimates periodically as the work progresses and reflect adjustments proportionate to the percentage-of-completion in income in the period when those estimates are revised. Certain of our contracts recognize revenue at a point in time, and revenue on these contracts is recognized when control transfers to the customer. The majority of our revenue that is recognized at a point in time is related to parts and certain medical radioisotopes and radiopharmaceuticals in our Nuclear Power Group segment. For all contracts, if a current estimate of total contract cost indicates a loss on a contract, the projected loss is recognized in full when determined.

On January 1, 2019, certain of our joint ventures within our Nuclear Services Group segment adopted the provisions of FASB Topic Revenue from Contracts with Customers. This resulted in a decrease to Investments in Unconsolidated Affiliates of $1.1 million with an offsetting decrease to Retained earnings on our condensed consolidated balance sheet.

Accumulated Other Comprehensive Income

The components of Accumulated other comprehensive income included in Stockholders' Equity are as follows:

	March 31, 2019			December 31, 2018
	(In thousands)
Currency translation adjustments	$	4,449		$	3,506
Net unrealized gain on derivative financial instruments	180			685
Unrecognized prior service cost on benefit obligations	(13,884		)	(14,395		)
Net unrealized gain (loss) on available-for-sale investments	(61		)	(85		)
Accumulated other comprehensive income	$	(9,316	)	$	(10,289	)

Upon adopting the FASB update to the Topic Derivatives, we reclassified $0.1 million from Retained earnings to Accumulated other comprehensive income on January 1, 2019.

The amounts reclassified out of Accumulated other comprehensive income by component and the affected condensed consolidated statements of income line items are as follows:

	Three Months Ended March 31,
	2019			2018
Accumulated Other Comprehensive Income (Loss) Component Recognized	(In thousands)						Line Item Presented
Realized gain (loss) on derivative financial instruments	$	(12	)	$	(11	)	Revenues
	202			120			Cost of operations
	190			109			Total before tax
	(49		)	(30		)	Provision for Income Taxes
	$	141		$	79		Net Income
Amortization of prior service cost on benefit obligations	$	(647	)	$	(505	)	Other – net
	136			183			Provision for Income Taxes
	$	(511	)	$	(322	)	Net Income
Total reclassification for the period	$	(370	)	$	(243	)

Inventories

At March 31, 2019 and December 31, 2018, Other current assets included inventories totaling $15.2 million and $16.0 million, respectively, consisting entirely of raw materials and supplies.

Restricted Cash and Cash Equivalents

At March 31, 2019, we had restricted cash and cash equivalents totaling $6.7 million, $2.7 million of which was held for future decommissioning of facilities (which is included in Other Assets on our condensed consolidated balance sheets) and $4.0 million of which was held to meet reinsurance reserve requirements of our captive insurer.

The following table provides a reconciliation of cash and cash equivalents and restricted cash and cash equivalents on our condensed consolidated balance sheets to the totals presented on our condensed consolidated statement of cash flows:

	March 31, 2019		December 31, 2018
	(In thousands)
Cash and cash equivalents	$	22,976	$	29,871
Restricted cash and cash equivalents	4,024		3,834
Restricted cash and cash equivalents included in Other Assets	2,722		2,703
Total cash and cash equivalents and restricted cash and cash equivalents as presented on our condensed consolidated statement of cash flows	$	29,722	$	36,408

Leases

We lease certain manufacturing facilities, office space and equipment under operating leases with terms of one to 20 years. Certain of the leases include options to renew for periods of one to 10 years. We include lease options in our determination of the right-of-use asset and lease liability if it is reasonably certain that we will exercise one or more of the options. Leases with initial terms of 12 months or less are excluded from our right-of-use assets and lease liabilities. Our right-of-use assets are included in Other Assets on our condensed consolidated balance sheet. Our current lease liabilities are included in Accrued liabilities – other, and our noncurrent lease liabilities are included in Other Liabilities on our condensed consolidated balance sheet. We use discount rates based on our incremental borrowing rate as most of our leases do not provide an implicit rate that can be readily determined.

During the three months ended March 31, 2019, we recognized lease expense of $2.1 million and paid cash of $1.7 million for our operating leases. At March 31, 2019, our weighted-average remaining lease term was 4.0 years, and for the purpose of measuring the present value of our lease liabilities, the weighted-average discount rate was 5.03%. The maturities of our lease liabilities at March 31, 2019 were as follows (amounts in thousands):

2019	$	4,354
2020	2,680
2021	1,974
2022	1,221
2023	513
2024	142
Thereafter	1,102
Total lease payments	$	11,986
Less: interest	(1,220		)
Present value of lease liabilities (1)	$	10,766

(1) Includes current lease liabilities of $4.9 million.

At March 31, 2019, our right-of-use assets totaled $44.1 million. The difference between the right-of-use assets and lease liabilities was primarily the result of reclassifications of favorable leases related to recent acquisitions from Intangible Assets.

Future minimum payments required under operating leases that have initial or remaining noncancellable lease terms in excess of one year at December 31, 2018 were as follows (amounts in thousands):

2019	$	5,650
2020	$	2,655
2021	$	1,969
2022	$	1,216
2023	$	511
Thereafter	$	1,231

Derivative Financial Instruments

Our operations give rise to exposure to market risks from changes in foreign currency exchange ("FX") rates. We use derivative financial instruments, primarily FX forward contracts, to reduce the impact of changes in FX rates on our operating results. We use these instruments to hedge our exposure associated with revenues or costs on our long-term contracts and other transactions that are denominated in currencies other than our operating entities' functional currencies. We do not hold or issue derivative financial instruments for trading or other speculative purposes.

We enter into derivative financial instruments primarily as hedges of certain firm purchase and sale commitments denominated in foreign currencies. We record these contracts at fair value on our condensed consolidated balance sheets. Based on the hedge designation at the inception of the contract, the related gains and losses on these contracts are deferred in stockholders' equity as a component of Accumulated other comprehensive income until the hedged item is recognized in earnings. The gain or loss on a derivative instrument not designated as a hedging instrument is immediately recognized in earnings. Gains and losses on derivative financial instruments that require immediate recognition are included as a component of Other – net on our condensed consolidated statements of income.

We have designated the majority of our FX forward contracts that qualify for hedge accounting as cash flow hedges. The hedged risk is the risk of changes in functional-currency-equivalent cash flows attributable to changes in FX spot rates of forecasted transactions primarily related to long-term contracts. We exclude from our assessment of effectiveness the portion of the fair value of the FX forward contracts attributable to the difference between FX spot rates and FX forward rates. At March 31, 2019, we had deferred approximately $0.2 million of net gains on these derivative financial instruments in Accumulated other comprehensive income. Assuming market conditions continue, we expect to recognize the majority of this amount in the next 12 months.

At March 31, 2019, our derivative financial instruments consisted of FX forward contracts with a total notional value of $73.5 million with maturities extending to December 2021. These instruments consist primarily of FX forward contracts to purchase or sell Canadian dollars. We are exposed to credit-related losses in the event of non-performance by counterparties to derivative financial instruments. We attempt to mitigate this risk by using major financial institutions with high credit ratings. Our counterparties to derivative financial instruments have the benefit of the same collateral arrangements and covenants as described under our credit facility.

Provision for Income Taxes

We are subject to federal income tax in the U.S. and Canada as well as income tax within multiple U.S. state jurisdictions. We provide for income taxes based on the enacted tax laws and rates in the jurisdictions in which we conduct our operations. These jurisdictions may have regimes of taxation that vary with respect to nominal rates and with respect to the basis on which these rates are applied. This variation, along with the changes in our mix of income within these jurisdictions, can contribute to shifts in our effective tax rate from period to period.

Our effective tax rate for the three months ended March 31, 2019 was 21.9% as compared to 21.9% for the three months ended March 31, 2018. The effective tax rates for the three months ended March 31, 2019 and 2018 were slightly higher than the U.S. corporate income tax rate of 21% primarily due to state income taxes within the U.S. and the unfavorable rate differential associated with our Canadian earnings. Our effective tax rates for the three months ended March 31, 2019 and 2018 were favorably impacted by benefits recognized for excess tax benefits related to employee share-based payments of $1.7 million and $2.2 million, respectively.

As of March 31, 2019, we had gross unrecognized tax benefits of $0.3 million (exclusive of interest and federal and state benefits), all of which would reduce our effective tax rate if recognized.

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Acquisitions

3 Months Ended

Mar. 31, 2019

Business Combinations [Abstract]

Acquisitions

ACQUISITIONS

Acquisition of Sotera Health LLC's Nordion Medical Isotope Business

On July 30, 2018, our subsidiary BWXT ITG Canada, Inc. acquired Sotera Health's Nordion medical isotope business (the "MI business") for $213.0 million. The MI business is a leading global manufacturer and supplier of critical medical radioisotopes and radiopharmaceuticals for research, diagnostic and therapeutic uses. Its customers include radiopharmaceutical companies, hospitals and radiopharmacies. Its primary operations are located in Kanata, Ontario, Canada and Vancouver, British Columbia, Canada. This acquisition added approximately 150 highly trained and experienced personnel, two specialized production centers and a uniquely licensed infrastructure. In addition to the growing portfolio of radioisotope products we acquired, the MI business will be the platform from which we plan to launch our Molybdenum-99 product line and a number of future radioisotope-based imaging, diagnostic and therapeutic products. This business is reported as part of our Nuclear Power Group segment.

The purchase price of the acquisition has been allocated among assets acquired and liabilities assumed at fair value, with the excess purchase price recorded as goodwill. Our purchase price allocation is as follows (amounts in thousands):

Accounts receivable – trade	$	7,732
Contracts in progress	51
Inventories	2,113
Other current assets	97
Property, plant and equipment	12,948
Goodwill	62,495
Deferred Income Taxes	3,006
Intangible assets	139,257
Total assets acquired	$	227,699
Accounts payable	$	654
Accrued employee benefits	579
Accrued liabilities – other	1,665
Environmental liabilities	2,062
Pension liability	9,746
Total liabilities assumed	$	14,706
Net assets acquired	$	212,993
Amount of tax deductible goodwill	$	53,693

The intangible assets included above consist of the following (dollar amounts in thousands):

	Amount		Amortization Period
Technical support agreement	$	67,500	23 years
Unpatented technology	$	33,000	23 years
Favorable operating leases	$	28,157	13-30 years
Customer relationship	$	10,600	23 years

The following unaudited pro forma financial information presents our results of operations for the three months ended March 31, 2018 as if the acquisition of the MI business had occurred on January 1, 2017. The unaudited pro forma financial information below is not intended to represent or be indicative of our actual consolidated results had we completed the acquisition at January 1, 2017. This information is presented for comparative purposes only and should not be taken as representative of our future consolidated results of operations.

	Three Months Ended
	March 31, 2018
	(In thousands, except per share amounts)
Revenues	$	467,791
Net Income Attributable to BWX Technologies, Inc.	$	66,890
Basic Earnings per Common Share	$	0.67
Diluted Earnings per Common Share	$	0.67

The unaudited pro forma results include the following pre-tax adjustments to the historical results presented above:

• Increase in amortization expense related to timing of amortization of the fair value of identifiable intangible assets acquired of approximately $1.5 million for the three months ended March 31, 2018.

• Additional interest expense associated with the incremental borrowings that would have been incurred to acquire the MI business as of January 1, 2017 of approximately $1.5 million for the three months ended March 31, 2018.

• Elimination of $1.6 million in acquisition related costs recognized in the three months ended March 31, 2018 that are not expected to be recurring.

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Revenue Recognition

3 Months Ended

Mar. 31, 2019

Revenue from Contract with Customer [Abstract]

Revenue Recognition

REVENUE RECOGNITION

Disaggregated Revenues

Revenues by geographical area and customer type were as follows:

	Three Months Ended March 31, 2019									Three Months Ended March 31, 2018
	Nuclear Operations Group		Nuclear Power Group		Nuclear Services Group		Total			Nuclear Operations Group		Nuclear Power Group		Nuclear Services Group		Total
	(In thousands)
United States:
Government	$	297,303	$	—	$	24,451	$	321,754		$	316,631	$	—	$	25,881	$	342,512
Non-Government	5,338		9,162		4,353		18,853			—		260		3,177		3,437
	$	302,641	$	9,162	$	28,804	$	340,607		$	316,631	$	260	$	29,058	$	345,949
Canada:
Non-Government	$	—	$	68,611	$	290	$	68,901		$	—	$	82,325	$	975	$	83,300
Other:
Non-Government	$	2,160	$	6,626	$	—	$	8,786		$	—	$	30,231	$	—	$	30,231
Segment Revenues	$	304,801	$	84,399	$	29,094	418,294			$	316,631	$	112,816	$	30,033	459,480
Adjustments and Eliminations							(1,840		)							(2,017		)
Revenues							$	416,454								$	457,463

Revenues by timing of transfer of goods or services were as follows:

	Three Months Ended March 31, 2019									Three Months Ended March 31, 2018
	Nuclear Operations Group		Nuclear Power Group		Nuclear Services Group		Total			Nuclear Operations Group		Nuclear Power Group		Nuclear Services Group		Total
	(In thousands)
Over time	$	304,733	$	70,661	$	29,094	$	404,488		$	316,631	$	105,109	$	30,033	$	451,773
Point-in-time	68		13,738		—		13,806			—		7,707		—		7,707
Segment Revenues	$	304,801	$	84,399	$	29,094	418,294			$	316,631	$	112,816	$	30,033	459,480
Adjustments and Eliminations							(1,840		)							(2,017		)
Revenues							$	416,454								$	457,463

Revenues by contract type were as follows:

	Three Months Ended March 31, 2019									Three Months Ended March 31, 2018
	Nuclear Operations Group		Nuclear Power Group		Nuclear Services Group		Total			Nuclear Operations Group		Nuclear Power Group		Nuclear Services Group		Total
	(In thousands)
Fixed-Price Incentive Fee	$	245,487	$	273	$	—	$	245,760		$	249,240	$	4,028	$	—	$	253,268
Firm-Fixed-Price	39,343		61,998		6,168		107,509			47,058		74,282		5,410		126,750
Cost-Plus Fee	19,853		—		22,535		42,388			20,233		45		23,953		44,231
Time-and-Materials	118		22,128		391		22,637			100		34,461		670		35,231
Segment Revenues	$	304,801	$	84,399	$	29,094	418,294			$	316,631	$	112,816	$	30,033	459,480
Adjustments and Eliminations							(1,840		)							(2,017		)
Revenues							$	416,454								$	457,463

Performance Obligations

As we progress on our contracts and the underlying performance obligations for which we recognize revenue over time, we refine our estimates of variable consideration and total estimated costs at completion, which impact the overall profitability on our contracts and performance obligations. Changes in these estimates result in the recognition of cumulative catch-up adjustments that impact our revenues and/or costs of contracts. During the three months ended March 31, 2019 and 2018, we recognized net favorable changes in estimates that resulted in increases in revenues of $4.8 million and $5.3 million, respectively.

Contract Assets and Liabilities

We include revenues and related costs incurred, plus accumulated contract costs that exceed amounts invoiced to customers under the terms of the contracts, in Contracts in progress. We include in Advance billings on contracts billings that exceed accumulated contract costs and revenues and costs recognized over time. Amounts that are withheld on our fixed-price incentive fee contracts are classified within Retainages. Certain of these amounts require conditions other than the passage of time to be achieved, with the remaining amounts only requiring the passage of time. Most long-term contracts contain provisions for progress payments. Our unbilled receivables do not contain an allowance for credit losses as we expect to invoice customers and collect all amounts for unbilled revenues. Changes in Contracts in progress and Advance billings on contracts are primarily driven by differences in the timing of revenue recognition and billings to our customers. During the three months ended March 31, 2019, our unbilled receivables increased$33.1 million, primarily as a result of revenue in excess of billings on certain fixed-price incentive fee contracts within our Nuclear Operations Group segment and services and engineering contracts within our Nuclear Power Group segment. Our fixed-price incentive fee contracts for our Nuclear Operations Group segment include provisions that result in an increase in retainages on contracts during the first and third quarters of the year, with larger payments made during the second and fourth quarters. Retainages also vary as a result of timing differences between incurring costs and achieving milestones that allow us to recover these amounts. This resulted in an increase in retainages on contracts during the three months ended March 31, 2019 as shown below:

	March 31,		December 31,
	2019		2018
	(In thousands)
Included in Contracts in progress:
Unbilled receivables	$	341,776	$	308,723
Retainages	$	72,000	$	57,885
Included in Other Assets:
Retainages	$	1,508	$	1,674
Advance billings on contracts	$	88,117	$	98,477

During the three months ended March 31, 2019 and 2018, we recognized $33.8 million and $30.4 million of revenues that were in Advance billings on contracts at December 31, 2018 and January 1, 2018, respectively.

Remaining Performance Obligations

Remaining performance obligations represent the dollar amount of revenue we expect to recognize in the future from performance obligations on contracts previously awarded and in progress. Of the March 31, 2019 remaining performance obligations on our contracts with customers, we expect to recognize revenues as follows:

	2019		2020		Thereafter		Total
	(In approximate millions)
Nuclear Operations Group	$	708	$	947	$	2,355	$	4,010
Nuclear Power Group	185		146		438		769
Nuclear Services Group	40		3		2		45
Total Remaining Performance Obligations	$	933	$	1,096	$	2,795	$	4,824

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Pension Plans and Postretirement Benefits

3 Months Ended

Mar. 31, 2019

Retirement Benefits [Abstract]

Pension Plans and Postretirement Benefits

PENSION PLANS AND POSTRETIREMENT BENEFITS

We record the service cost component of net periodic benefit cost within Operating income on our condensed consolidated statements of income. For the three months ended March 31, 2019 and 2018, these amounts were $2.6 million. All other components of net periodic benefit cost are included in Other – net within the condensed consolidated statements of income. For the three months ended March 31, 2019 and 2018, these amounts were $(5.2) million and $(8.9) million, respectively. Components of net periodic benefit cost included in net income were as follows:

	Pension Benefits						Other Benefits
	Three Months Ended March 31,						Three Months Ended March 31,
	2019			2018			2019			2018
	(In thousands)
Service cost	$	2,456		$	2,413		$	145		$	165
Interest cost	11,592			12,343			585			549
Expected return on plan assets	(17,436		)	(21,625		)	(627		)	(634		)
Amortization of prior service cost (credit)	725			550			(78		)	(45		)
Net periodic benefit (income) cost	$	(2,663	)	$	(6,319	)	$	25		$	35

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2019

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

COMMITMENTS AND CONTINGENCIES

There were no material contingencies during the period covered by this Form 10-Q. For more information regarding commitments and contingencies, refer to Note 10 to the consolidated financial statements in Part II of our 2018 10-K.

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Fair Value Measurements

3 Months Ended

Mar. 31, 2019

Fair Value Disclosures [Abstract]

Fair Value Measurements

FAIR VALUE MEASUREMENTS

Investments

The following is a summary of our investments measured at fair value at March 31, 2019:

	Total		Level 1		Level 2		Level 3
	(In thousands)
Equity securities
Equities	$	1,919	$	—	$	1,919	$	—
Mutual funds	5,130		—		5,130		—
Available-for-sale securities
U.S. Government and agency securities	1,979		1,979		—		—
Corporate bonds	3,082		1,460		1,622		—
Asset-backed securities and collateralized mortgage obligations	89		—		89		—
Total	$	12,199	$	3,439	$	8,760	$	—

The following is a summary of our investments measured at fair value at December 31, 2018:

	Total		Level 1		Level 2		Level 3
	(In thousands)
Equity securities
Equities	$	1,163	$	—	$	1,163	$	—
Mutual funds	4,694		—		4,694		—
Available-for-sale securities
U.S. Government and agency securities	2,227		2,227		—		—
Corporate bonds	2,803		1,433		1,370		—
Asset-backed securities and collateralized mortgage obligations	92		—		92		—
Total	$	10,979	$	3,660	$	7,319	$	—

We estimate the fair value of investments based on quoted market prices. For investments for which there are no quoted market prices, we derive fair values from available yield curves for investments of similar quality and terms.

Derivatives

Level 2 derivative assets and liabilities currently consist of FX forward contracts. Where applicable, the value of these derivative assets and liabilities is computed by discounting the projected future cash flow amounts to present value using market-based observable inputs, including FX forward and spot rates, interest rates and counterparty performance risk adjustments. At March 31, 2019 and December 31, 2018, we had forward contracts outstanding to purchase or sell foreign currencies, primarily Canadian dollars, with a total fair value of $(0.2) million and $0.7 million, respectively.

Other Financial Instruments

We used the following methods and assumptions in estimating our fair value disclosures for our other financial instruments, as follows:

Cash and cash equivalents and restricted cash and cash equivalents. The carrying amounts that we have reported in the accompanying condensed consolidated balance sheets for Cash and cash equivalents and Restricted cash and cash equivalents approximate their fair values due to their highly liquid nature.

Long-term and short-term debt. We base the fair values of debt instruments, including our 5.375% senior notes due 2026 (the "Senior Notes"), on quoted market prices. Where quoted prices are not available, we base the fair values on the present value of future cash flows discounted at estimated borrowing rates for similar debt instruments or on estimated prices based on current yields for debt issues of similar quality and terms. At March 31, 2019 and December 31, 2018, the fair value of our Senior Notes was $406.2 million and $384.9 million, respectively. The fair value of our remaining debt instruments approximated their carrying values at March 31, 2019 and December 31, 2018.

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Stock-Based Compensation

3 Months Ended

Mar. 31, 2019

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-Based Compensation

STOCK-BASED COMPENSATION

Stock-based compensation recognized for all of our plans for the three months ended March 31, 2019 and 2018 totaled $3.6 million and $4.9 million, respectively, with associated tax benefit totaling $0.6 million and $0.9 million, respectively.

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Segment Reporting

3 Months Ended

Mar. 31, 2019

Segment Reporting [Abstract]

Segment Reporting

SEGMENT REPORTING

As described in Note 1, our operations are assessed based on three reportable segments. An analysis of our operations by reportable segment is as follows:

	Three Months Ended March 31,
	2019			2018
	(In thousands)
REVENUES:
Nuclear Operations Group	$	304,801		$	316,631
Nuclear Power Group	84,399			112,816
Nuclear Services Group	29,094			30,033
Adjustments and Eliminations (1)	(1,840		)	(2,017		)
	$	416,454		$	457,463

(1) Segment revenues are net of the following intersegment transfers and other adjustments:

Nuclear Operations Group Transfers	$	(857	)	$	(1,139	)
Nuclear Power Group Transfers	(40		)	(40		)
Nuclear Services Group Transfers	(943		)	(838		)
	$	(1,840	)	$	(2,017	)
OPERATING INCOME:
Nuclear Operations Group	$	57,625		$	67,657
Nuclear Power Group	12,583			21,764
Nuclear Services Group	1,571			1,177
Other	(6,096		)	(4,043		)
	$	65,683		$	86,555
Unallocated Corporate (2)	(2,039		)	(6,667		)
Total Operating Income	$	63,644		$	79,888
Other Income (Expense):
Interest income	415			778
Interest expense	(8,703		)	(3,560		)
Other – net	7,521			7,910
Total Other Income (Expense)	(767		)	5,128
Income before Provision for Income Taxes	$	62,877		$	85,016

(2) Unallocated corporate includes general corporate overhead not allocated to segments.

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Earnings Per Share

3 Months Ended

Mar. 31, 2019

Earnings Per Share [Abstract]

Earnings Per Share

EARNINGS PER SHARE

The following table sets forth the computation of basic and diluted earnings per share:

	Three Months Ended March 31,
	2019		2018
	(In thousands, except share and per share amounts)
Basic:
Net Income Attributable to BWX Technologies, Inc.	$	48,978	$	66,441
Weighted-average common shares	95,255,109		99,526,187
Basic earnings per common share	$	0.51	$	0.67
Diluted:
Net Income Attributable to BWX Technologies, Inc.	$	48,978	$	66,441
Weighted-average common shares (basic)	95,255,109		99,526,187
Effect of dilutive securities:
Stock options, restricted stock units and performance shares (1)	566,245		986,100
Adjusted weighted-average common shares	95,821,354		100,512,287
Diluted earnings per common share	$	0.51	$	0.66

(1) At March 31, 2019 and 2018, we excluded 181,358 and 79,278 shares, respectively, from our diluted share calculation as their effect would have been antidilutive.

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Basis of Presentation and Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2019

Accounting Policies [Abstract]

Basis of Presentation

We have presented the condensed consolidated financial statements of BWX Technologies, Inc. ("BWXT" or the "Company") in U.S. dollars in accordance with the interim reporting requirements of Form 10-Q, Rule 10-01 of Regulation S-X and accounting principles generally accepted in the United States ("GAAP"). Certain financial information and disclosures normally included in our financial statements prepared annually in accordance with GAAP have been condensed or omitted. Readers of these financial statements should, therefore, refer to the consolidated financial statements and notes in our annual report on Form 10-K for the year ended December 31, 2018 (our "2018 10-K"). We have included all adjustments, in the opinion of management, consisting only of normal recurring adjustments, necessary for a fair presentation.

Consolidation

We use the equity method to account for investments in entities that we do not control, but over which we have the ability to exercise significant influence. We generally refer to these entities as "joint ventures." We have eliminated all intercompany transactions and accounts. We have reclassified certain amounts previously reported to conform to the presentation at March 31, 2019 and for the three months ended March 31, 2019 primarily related to the adoption of new accounting standards. We present the notes to our condensed consolidated financial statements on the basis of continuing operations, unless otherwise stated.

Unless the context otherwise indicates, "we," "us" and "our" mean BWXT and its consolidated subsidiaries.

Reportable Segments

Reportable Segments

We operate in three reportable segments: Nuclear Operations Group, Nuclear Power Group and Nuclear Services Group. Our reportable segments are further described as follows:

• Our Nuclear Operations Group segment manufactures naval nuclear reactors for the Naval Nuclear Propulsion Program for use in submarines and aircraft carriers. Through this segment, we own and operate manufacturing facilities located in Lynchburg, Virginia; Barberton, Ohio; Mount Vernon, Indiana; Euclid, Ohio; and Erwin, Tennessee. The Lynchburg operations fabricate fuel-bearing precision components that range in weight from a few grams to hundreds of tons. In-house capabilities also include wet chemistry uranium processing, advanced heat treatment to optimize component material properties and a controlled, clean-room environment with the capacity to assemble railcar-size components. The Barberton and Mount Vernon locations specialize in the design and manufacture of heavy components inclusive of development and fabrication activities for submarine missile launch tubes. The Euclid facility fabricates electro-mechanical equipment and performs design, manufacturing, inspection, assembly and testing activities. Fuel for the naval nuclear reactors is provided by Nuclear Fuel Services, Inc. ("NFS"), one of our wholly owned subsidiaries. Located in Erwin, NFS also downblends Cold War-era government stockpiles of high-enriched uranium into material suitable for further processing into commercial nuclear reactor fuel.

• Our Nuclear Power Group segment fabricates commercial nuclear steam generators, nuclear fuel, fuel handling systems, pressure vessels, reactor components, heat exchangers, tooling delivery systems and other auxiliary equipment, including containers for the storage of spent nuclear fuel and other high-level waste, for nuclear utility customers. BWXT has supplied the nuclear industry with more than 1,300 large, heavy components worldwide and is the only commercial heavy nuclear component manufacturer in North America. This segment also provides specialized engineering services that include structural component design, 3-D thermal-hydraulic engineering analysis, weld and robotic process development, electrical and controls engineering and metallurgy and materials engineering. In addition, this segment offers in-plant inspection, maintenance and modification services for nuclear steam generators, heat exchangers, reactors, fuel handling systems and balance of plant equipment, as well as specialized non-destructive examination and tooling/repair solutions. This segment is also a leading global manufacturer and supplier of critical medical radioisotopes and radiopharmaceuticals for research, diagnostic and therapeutic uses. See Note 2 for information about a recent acquisition related to this segment.

• Our Nuclear Services Group segment provides various services to the U.S. Government and the commercial nuclear industry. Services provided to the U.S. Government include nuclear materials management and operation, environmental management and administrative and operating services for various U.S. Government-owned facilities. These services are provided to the U.S. Department of Energy ("DOE"), including the National Nuclear Security Administration ("NNSA"), the Office of Nuclear Energy, the Office of Science and the Office of Environmental Management, and NASA. Through this segment we deliver services and management solutions to nuclear and high-consequence operations. A significant portion of this segment's operations are conducted through joint ventures.

Our Nuclear Services Group segment is also engaged in inspection and maintenance services for the commercial nuclear industry primarily in the U.S. These services include steam generator, heat exchanger and balance of plant inspection and servicing as well as high pressure water lancing, non-destructive examination and the development of customized tooling solutions. This segment also offers complete advanced nuclear fuel and reactor design and engineering, licensing and manufacturing services for new advanced nuclear reactors and other nuclear technologies.

See Note 8 for financial information about our segments. Operating results for the three months ended March 31, 2019 are not necessarily indicative of the results that may be expected for the year ending December 31, 2019. For further information, refer to the consolidated financial statements and notes included in our 2018 10-K.

Recently Adopted Accounting Standards

Recently Adopted Accounting Standards

In February 2016, the FASB issued an update to the Topic Leases, which supersedes the lease reporting requirements in Topic Leases (previously "FAS 13"). This update requires that a lessee recognize on its balance sheets the assets and liabilities for all leases with lease terms of more than 12 months, along with additional qualitative and quantitative disclosures. We adopted this update on January 1, 2019 using the modified retrospective method, which resulted in the recognition of right-of-use assets totaling $45.1 million and lease liabilities totaling $11.9 million. The difference between the right-of-use assets and lease liabilities of $33.2 million was primarily the result of reclassifications of favorable leases related to recent acquisitions from Intangible Assets. In addition, we elected the package of practical expedients permitted under the transition guidance, which allowed us to carry forward our historical lease classifications, among other things. The adoption of the provisions in this update did not have an impact on our condensed consolidated statements of income or cash flows.

Contracts and Revenue Recognition

Contracts and Revenue Recognition

We generally recognize contract revenues and related costs over time for individual performance obligations based on a cost-to-cost method in accordance with Financial Accounting Standards Board ("FASB") Topic Revenue from Contracts with Customers. We recognize estimated contract revenue and resulting income based on the measurement of the extent of progress toward completion as a percentage of the total project. Certain costs may be excluded from the cost-to-cost method of measuring progress, such as significant costs for uninstalled materials, if such costs do not depict our performance in transferring control of goods or services to the customer. We review contract price and cost estimates periodically as the work progresses and reflect adjustments proportionate to the percentage-of-completion in income in the period when those estimates are revised. Certain of our contracts recognize revenue at a point in time, and revenue on these contracts is recognized when control transfers to the customer. The majority of our revenue that is recognized at a point in time is related to parts and certain medical radioisotopes and radiopharmaceuticals in our Nuclear Power Group segment. For all contracts, if a current estimate of total contract cost indicates a loss on a contract, the projected loss is recognized in full when determined.

On January 1, 2019, certain of our joint ventures within our Nuclear Services Group segment adopted the provisions of FASB Topic Revenue from Contracts with Customers.

Inventories

Inventories

At March 31, 2019 and December 31, 2018, Other current assets included inventories totaling $15.2 million and $16.0 million, respectively, consisting entirely of raw materials and supplies.

Restricted Cash and Cash Equivalents

Restricted Cash and Cash Equivalents

At March 31, 2019, we had restricted cash and cash equivalents totaling $6.7 million, $2.7 million of which was held for future decommissioning of facilities (which is included in Other Assets on our condensed consolidated balance sheets) and $4.0 million of which was held to meet reinsurance reserve requirements of our captive insurer.

Leases

Leases

We lease certain manufacturing facilities, office space and equipment under operating leases with terms of one to 20 years. Certain of the leases include options to renew for periods of one to 10 years. We include lease options in our determination of the right-of-use asset and lease liability if it is reasonably certain that we will exercise one or more of the options. Leases with initial terms of 12 months or less are excluded from our right-of-use assets and lease liabilities. Our right-of-use assets are included in Other Assets on our condensed consolidated balance sheet. Our current lease liabilities are included in Accrued liabilities – other, and our noncurrent lease liabilities are included in Other Liabilities on our condensed consolidated balance sheet.

Derivative Financial Instruments

Derivative Financial Instruments

Our operations give rise to exposure to market risks from changes in foreign currency exchange ("FX") rates. We use derivative financial instruments, primarily FX forward contracts, to reduce the impact of changes in FX rates on our operating results. We use these instruments to hedge our exposure associated with revenues or costs on our long-term contracts and other transactions that are denominated in currencies other than our operating entities' functional currencies. We do not hold or issue derivative financial instruments for trading or other speculative purposes.

We enter into derivative financial instruments primarily as hedges of certain firm purchase and sale commitments denominated in foreign currencies. We record these contracts at fair value on our condensed consolidated balance sheets. Based on the hedge designation at the inception of the contract, the related gains and losses on these contracts are deferred in stockholders' equity as a component of Accumulated other comprehensive income until the hedged item is recognized in earnings. The gain or loss on a derivative instrument not designated as a hedging instrument is immediately recognized in earnings. Gains and losses on derivative financial instruments that require immediate recognition are included as a component of Other – net on our condensed consolidated statements of income.

We have designated the majority of our FX forward contracts that qualify for hedge accounting as cash flow hedges. The hedged risk is the risk of changes in functional-currency-equivalent cash flows attributable to changes in FX spot rates of forecasted transactions primarily related to long-term contracts. We exclude from our assessment of effectiveness the portion of the fair value of the FX forward contracts attributable to the difference between FX spot rates and FX forward rates.

Provision for Income Taxes

Provision for Income Taxes

We are subject to federal income tax in the U.S. and Canada as well as income tax within multiple U.S. state jurisdictions. We provide for income taxes based on the enacted tax laws and rates in the jurisdictions in which we conduct our operations. These jurisdictions may have regimes of taxation that vary with respect to nominal rates and with respect to the basis on which these rates are applied. This variation, along with the changes in our mix of income within these jurisdictions, can contribute to shifts in our effective tax rate from period to period.

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Basis of Presentation and Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2019

Accounting Policies [Abstract]

Components of Accumulated Other Comprehensive Income

The components of Accumulated other comprehensive income included in Stockholders' Equity are as follows:

	March 31, 2019			December 31, 2018
	(In thousands)
Currency translation adjustments	$	4,449		$	3,506
Net unrealized gain on derivative financial instruments	180			685
Unrecognized prior service cost on benefit obligations	(13,884		)	(14,395		)
Net unrealized gain (loss) on available-for-sale investments	(61		)	(85		)
Accumulated other comprehensive income	$	(9,316	)	$	(10,289	)

Schedule of Amounts Reclassified from Accumulated Other Comprehensive Income

The amounts reclassified out of Accumulated other comprehensive income by component and the affected condensed consolidated statements of income line items are as follows:

	Three Months Ended March 31,
	2019			2018
Accumulated Other Comprehensive Income (Loss) Component Recognized	(In thousands)						Line Item Presented
Realized gain (loss) on derivative financial instruments	$	(12	)	$	(11	)	Revenues
	202			120			Cost of operations
	190			109			Total before tax
	(49		)	(30		)	Provision for Income Taxes
	$	141		$	79		Net Income
Amortization of prior service cost on benefit obligations	$	(647	)	$	(505	)	Other – net
	136			183			Provision for Income Taxes
	$	(511	)	$	(322	)	Net Income
Total reclassification for the period	$	(370	)	$	(243	)

Restricted Cash and Cash Equivalents

The following table provides a reconciliation of cash and cash equivalents and restricted cash and cash equivalents on our condensed consolidated balance sheets to the totals presented on our condensed consolidated statement of cash flows:

	March 31, 2019		December 31, 2018
	(In thousands)
Cash and cash equivalents	$	22,976	$	29,871
Restricted cash and cash equivalents	4,024		3,834
Restricted cash and cash equivalents included in Other Assets	2,722		2,703
Total cash and cash equivalents and restricted cash and cash equivalents as presented on our condensed consolidated statement of cash flows	$	29,722	$	36,408

Restricted Cash and Cash Equivalents

The following table provides a reconciliation of cash and cash equivalents and restricted cash and cash equivalents on our condensed consolidated balance sheets to the totals presented on our condensed consolidated statement of cash flows:

	March 31, 2019		December 31, 2018
	(In thousands)
Cash and cash equivalents	$	22,976	$	29,871
Restricted cash and cash equivalents	4,024		3,834
Restricted cash and cash equivalents included in Other Assets	2,722		2,703
Total cash and cash equivalents and restricted cash and cash equivalents as presented on our condensed consolidated statement of cash flows	$	29,722	$	36,408

Operating Lease Maturity Schedule

The maturities of our lease liabilities at March 31, 2019 were as follows (amounts in thousands):

2019	$	4,354
2020	2,680
2021	1,974
2022	1,221
2023	513
2024	142
Thereafter	1,102
Total lease payments	$	11,986
Less: interest	(1,220		)
Present value of lease liabilities (1)	$	10,766

(1) Includes current lease liabilities of $4.9 million.

Operating Lease Future Minimum Payments Required

Future minimum payments required under operating leases that have initial or remaining noncancellable lease terms in excess of one year at December 31, 2018 were as follows (amounts in thousands):

2019	$	5,650
2020	$	2,655
2021	$	1,969
2022	$	1,216
2023	$	511
Thereafter	$	1,231

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Acquisitions (Tables)

3 Months Ended

Mar. 31, 2019

Business Combinations [Abstract]

Schedule of Business Acquisition Assets Acquired and Liabilities Assumed

Our purchase price allocation is as follows (amounts in thousands):

Accounts receivable – trade	$	7,732
Contracts in progress	51
Inventories	2,113
Other current assets	97
Property, plant and equipment	12,948
Goodwill	62,495
Deferred Income Taxes	3,006
Intangible assets	139,257
Total assets acquired	$	227,699
Accounts payable	$	654
Accrued employee benefits	579
Accrued liabilities – other	1,665
Environmental liabilities	2,062
Pension liability	9,746
Total liabilities assumed	$	14,706
Net assets acquired	$	212,993
Amount of tax deductible goodwill	$	53,693

Schedule of Intangible Assets Acquired

The intangible assets included above consist of the following (dollar amounts in thousands):

	Amount		Amortization Period
Technical support agreement	$	67,500	23 years
Unpatented technology	$	33,000	23 years
Favorable operating leases	$	28,157	13-30 years
Customer relationship	$	10,600	23 years

Schedule of Unaudited Pro Forma Financial Information

This information is presented for comparative purposes only and should not be taken as representative of our future consolidated results of operations.

	Three Months Ended
	March 31, 2018
	(In thousands, except per share amounts)
Revenues	$	467,791
Net Income Attributable to BWX Technologies, Inc.	$	66,890
Basic Earnings per Common Share	$	0.67
Diluted Earnings per Common Share	$	0.67

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Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2019

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregated Revenues

Revenues by geographical area and customer type were as follows:

	Three Months Ended March 31, 2019									Three Months Ended March 31, 2018
	Nuclear Operations Group		Nuclear Power Group		Nuclear Services Group		Total			Nuclear Operations Group		Nuclear Power Group		Nuclear Services Group		Total
	(In thousands)
United States:
Government	$	297,303	$	—	$	24,451	$	321,754		$	316,631	$	—	$	25,881	$	342,512
Non-Government	5,338		9,162		4,353		18,853			—		260		3,177		3,437
	$	302,641	$	9,162	$	28,804	$	340,607		$	316,631	$	260	$	29,058	$	345,949
Canada:
Non-Government	$	—	$	68,611	$	290	$	68,901		$	—	$	82,325	$	975	$	83,300
Other:
Non-Government	$	2,160	$	6,626	$	—	$	8,786		$	—	$	30,231	$	—	$	30,231
Segment Revenues	$	304,801	$	84,399	$	29,094	418,294			$	316,631	$	112,816	$	30,033	459,480
Adjustments and Eliminations							(1,840		)							(2,017		)
Revenues							$	416,454								$	457,463

Revenues by timing of transfer of goods or services were as follows:

	Three Months Ended March 31, 2019									Three Months Ended March 31, 2018
	Nuclear Operations Group		Nuclear Power Group		Nuclear Services Group		Total			Nuclear Operations Group		Nuclear Power Group		Nuclear Services Group		Total
	(In thousands)
Over time	$	304,733	$	70,661	$	29,094	$	404,488		$	316,631	$	105,109	$	30,033	$	451,773
Point-in-time	68		13,738		—		13,806			—		7,707		—		7,707
Segment Revenues	$	304,801	$	84,399	$	29,094	418,294			$	316,631	$	112,816	$	30,033	459,480
Adjustments and Eliminations							(1,840		)							(2,017		)
Revenues							$	416,454								$	457,463

Revenues by contract type were as follows:

	Three Months Ended March 31, 2019									Three Months Ended March 31, 2018
	Nuclear Operations Group		Nuclear Power Group		Nuclear Services Group		Total			Nuclear Operations Group		Nuclear Power Group		Nuclear Services Group		Total
	(In thousands)
Fixed-Price Incentive Fee	$	245,487	$	273	$	—	$	245,760		$	249,240	$	4,028	$	—	$	253,268
Firm-Fixed-Price	39,343		61,998		6,168		107,509			47,058		74,282		5,410		126,750
Cost-Plus Fee	19,853		—		22,535		42,388			20,233		45		23,953		44,231
Time-and-Materials	118		22,128		391		22,637			100		34,461		670		35,231
Segment Revenues	$	304,801	$	84,399	$	29,094	418,294			$	316,631	$	112,816	$	30,033	459,480
Adjustments and Eliminations							(1,840		)							(2,017		)
Revenues							$	416,454								$	457,463

Schedule of Contract Assets and Liabilities

Our fixed-price incentive fee contracts for our Nuclear Operations Group segment include provisions that result in an increase in retainages on contracts during the first and third quarters of the year, with larger payments made during the second and fourth quarters. Retainages also vary as a result of timing differences between incurring costs and achieving milestones that allow us to recover these amounts. This resulted in an increase in retainages on contracts during the three months ended March 31, 2019 as shown below:

	March 31,		December 31,
	2019		2018
	(In thousands)
Included in Contracts in progress:
Unbilled receivables	$	341,776	$	308,723
Retainages	$	72,000	$	57,885
Included in Other Assets:
Retainages	$	1,508	$	1,674
Advance billings on contracts	$	88,117	$	98,477

Schedule of Remaining Performance Obligations

Of the March 31, 2019 remaining performance obligations on our contracts with customers, we expect to recognize revenues as follows:

	2019		2020		Thereafter		Total
	(In approximate millions)
Nuclear Operations Group	$	708	$	947	$	2,355	$	4,010
Nuclear Power Group	185		146		438		769
Nuclear Services Group	40		3		2		45
Total Remaining Performance Obligations	$	933	$	1,096	$	2,795	$	4,824

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Pension Plans and Postretirement Benefits (Tables)

3 Months Ended

Mar. 31, 2019

Retirement Benefits [Abstract]

Components of Net Periodic Benefit Cost

Components of net periodic benefit cost included in net income were as follows:

	Pension Benefits						Other Benefits
	Three Months Ended March 31,						Three Months Ended March 31,
	2019			2018			2019			2018
	(In thousands)
Service cost	$	2,456		$	2,413		$	145		$	165
Interest cost	11,592			12,343			585			549
Expected return on plan assets	(17,436		)	(21,625		)	(627		)	(634		)
Amortization of prior service cost (credit)	725			550			(78		)	(45		)
Net periodic benefit (income) cost	$	(2,663	)	$	(6,319	)	$	25		$	35

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Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2019

Fair Value Disclosures [Abstract]

Summary of Investments Measured at Fair Value

The following is a summary of our investments measured at fair value at March 31, 2019:

	Total		Level 1		Level 2		Level 3
	(In thousands)
Equity securities
Equities	$	1,919	$	—	$	1,919	$	—
Mutual funds	5,130		—		5,130		—
Available-for-sale securities
U.S. Government and agency securities	1,979		1,979		—		—
Corporate bonds	3,082		1,460		1,622		—
Asset-backed securities and collateralized mortgage obligations	89		—		89		—
Total	$	12,199	$	3,439	$	8,760	$	—

The following is a summary of our investments measured at fair value at December 31, 2018:

	Total		Level 1		Level 2		Level 3
	(In thousands)
Equity securities
Equities	$	1,163	$	—	$	1,163	$	—
Mutual funds	4,694		—		4,694		—
Available-for-sale securities
U.S. Government and agency securities	2,227		2,227		—		—
Corporate bonds	2,803		1,433		1,370		—
Asset-backed securities and collateralized mortgage obligations	92		—		92		—
Total	$	10,979	$	3,660	$	7,319	$	—

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Segment Reporting (Tables)

3 Months Ended

Mar. 31, 2019

Segment Reporting [Abstract]

Schedule of Operating Results by Segment

An analysis of our operations by reportable segment is as follows:

	Three Months Ended March 31,
	2019			2018
	(In thousands)
REVENUES:
Nuclear Operations Group	$	304,801		$	316,631
Nuclear Power Group	84,399			112,816
Nuclear Services Group	29,094			30,033
Adjustments and Eliminations (1)	(1,840		)	(2,017		)
	$	416,454		$	457,463

(1) Segment revenues are net of the following intersegment transfers and other adjustments:

Nuclear Operations Group Transfers	$	(857	)	$	(1,139	)
Nuclear Power Group Transfers	(40		)	(40		)
Nuclear Services Group Transfers	(943		)	(838		)
	$	(1,840	)	$	(2,017	)
OPERATING INCOME:
Nuclear Operations Group	$	57,625		$	67,657
Nuclear Power Group	12,583			21,764
Nuclear Services Group	1,571			1,177
Other	(6,096		)	(4,043		)
	$	65,683		$	86,555
Unallocated Corporate (2)	(2,039		)	(6,667		)
Total Operating Income	$	63,644		$	79,888
Other Income (Expense):
Interest income	415			778
Interest expense	(8,703		)	(3,560		)
Other – net	7,521			7,910
Total Other Income (Expense)	(767		)	5,128
Income before Provision for Income Taxes	$	62,877		$	85,016

(2) Unallocated corporate includes general corporate overhead not allocated to segments.

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Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2019

Earnings Per Share [Abstract]

Computation of Basic and Diluted Earnings Per Share

The following table sets forth the computation of basic and diluted earnings per share:

	Three Months Ended March 31,
	2019		2018
	(In thousands, except share and per share amounts)
Basic:
Net Income Attributable to BWX Technologies, Inc.	$	48,978	$	66,441
Weighted-average common shares	95,255,109		99,526,187
Basic earnings per common share	$	0.51	$	0.67
Diluted:
Net Income Attributable to BWX Technologies, Inc.	$	48,978	$	66,441
Weighted-average common shares (basic)	95,255,109		99,526,187
Effect of dilutive securities:
Stock options, restricted stock units and performance shares (1)	566,245		986,100
Adjusted weighted-average common shares	95,821,354		100,512,287
Diluted earnings per common share	$	0.51	$	0.66

(1) At March 31, 2019 and 2018, we excluded 181,358 and 79,278 shares, respectively, from our diluted share calculation as their effect would have been antidilutive.

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Basis of Presentation and Significant Accounting Policies - Additional Information (Details) $ in Thousands		3 Months Ended
	Jan. 01, 2019 USD ($)	Mar. 31, 2019 USD ($) component segment	Mar. 31, 2018 USD ($)	Dec. 31, 2018 USD ($)	Jan. 01, 2018 USD ($)
Basis Of Presentation And Significant Accounting Policies [Line Items]
Accumulated other comprehensive income		$ (9,316)		$ (10,289)
Number of reportable segments | segment		3
Number of components supplied to worldwide (more than) | component		1,300
Right of use asset related to operating leases	$ 45,100	$ 44,100
Operating lease liabilities recognized	11,900	10,766
Reclassifications of favorable leases related to recent acquisitions	33,200
Retained earnings	1,142				$ (9,926)
Total inventories		15,200		$ 16,000
Restricted cash and cash equivalents		6,700
Lease expense		2,100
Cash paid for operating leases		$ 1,700
Weighted average remaining lease terms on operating leases (in years)		4 years
Weighted average discount rate on operating leases		5.03%
Net gains on foreign exchange forward contracts		$ 200
Notional amount of foreign currency forward contracts		$ 73,500
Effective tax rate		21.90%	21.90%
Effective Income tax Rate Reconciliation, Share-based Compensation, Excess Tax Benefit, Amount		$ (1,700)	$ (2,200)
Gross unrecognized tax benefits		300
Accounting Standard Update 2017-12
Basis Of Presentation And Significant Accounting Policies [Line Items]
Accumulated other comprehensive income	100
Cash Held for Future Decommissioning of Facilities
Basis Of Presentation And Significant Accounting Policies [Line Items]
Restricted cash and cash equivalents		2,700
Cash Held to Meet Reinsurance Reserve Requirements
Basis Of Presentation And Significant Accounting Policies [Line Items]
Restricted cash and cash equivalents		$ 4,000
Minimum
Basis Of Presentation And Significant Accounting Policies [Line Items]
Length of operating lease terms (in years)		1 year
Length of operating lease renewal options (in years)		1 year
Maximum
Basis Of Presentation And Significant Accounting Policies [Line Items]
Length of operating lease terms (in years)		20 years
Length of operating lease renewal options (in years)		10 years
Retained Earnings
Basis Of Presentation And Significant Accounting Policies [Line Items]
Retained earnings	1,219				$ (13,311)
Retained Earnings | Accounting Standard Update 2017-12
Basis Of Presentation And Significant Accounting Policies [Line Items]
Retained earnings	100
Retained Earnings | Nuclear Power Group | Accounting Standards Update 2014-09
Basis Of Presentation And Significant Accounting Policies [Line Items]
Adjustment for joint venture adoption of new accounting principal	$ 1,100

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Basis of Presentation and Significant Accounting Policies - Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total Stockholders' Equity	$ 242,874	$ 235,701	$ 345,250	$ 285,757
Currency translation adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total Stockholders' Equity	4,449	3,506
Net unrealized gain on derivative financial instruments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total Stockholders' Equity	180
Unrecognized prior service cost on benefit obligations
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total Stockholders' Equity	13,884	14,395
Net unrealized gain (loss) on available-for-sale investments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total Stockholders' Equity	61
AOCI Including Portion Attributable to Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total Stockholders' Equity	$ 9,316	10,289
Net unrealized gain on derivative financial instruments | Net unrealized gain (loss) on available-for-sale investments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total Stockholders' Equity		685
Net unrealized gain (loss) on available-for-sale investments | Net unrealized gain (loss) on available-for-sale investments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total Stockholders' Equity		$ 85

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Basis of Presentation and Significant Accounting Policies - Schedule of Amounts Reclassified from Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenues	$ 416,454	$ 457,463
Cost of operations	(303,635)	(327,364)
Income before Provision for Income Taxes	62,877	85,016
Other – net	7,521	7,910
Provision for Income Taxes	(13,767)	(18,603)
Net Income	49,110	66,413
Accumulated Other Comprehensive Income (Loss) Component Recognized
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net Income	(370)	(243)
Accumulated Other Comprehensive Income (Loss) Component Recognized | Realized gain (loss) on derivative financial instruments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenues	(12)	(11)
Cost of operations	202	120
Income before Provision for Income Taxes	190	109
Provision for Income Taxes	(49)	(30)
Net Income	141	79
Accumulated Other Comprehensive Income (Loss) Component Recognized | Amortization of prior service cost on benefit obligations
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other – net	(647)	(505)
Provision for Income Taxes	136	183
Net Income	$ (511)	$ (322)

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Basis of Presentation and Significant Accounting Policies - Reconciliation of Cash and Cash Equivalents and Restricted Cash and Cash Equivalents (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Accounting Policies [Abstract]
Cash and cash equivalents	$ 22,976	$ 29,871
Restricted cash and cash equivalents	4,024	3,834
Restricted cash and cash equivalents included in Other Assets	2,722	2,703
Total cash and cash equivalents and restricted cash and cash equivalents as presented on our condensed consolidated statement of cash flows	$ 29,722	$ 36,408	$ 151,336	$ 213,144

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Basis of Presentation and Significant Accounting Policies - Operating Lease Maturity Schedule (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Jan. 01, 2019
Operating Lease Liabilities, Payments Due [Abstract]
2019	$ 4,354
2020	2,680
2021	1,974
2022	1,221
2023	513
2024	142
Thereafter	1,102
Total lease payments	11,986
Less: interest	(1,220)
Present value of lease liabilities	10,766	$ 11,900
Current lease liabilities	$ 4,900

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Basis of Presentation and Significant Accounting Policies - Operating Lease Future Minimum Payments Required (Details) $ in Thousands	Mar. 31, 2019 USD ($)
Operating Lease Liabilities, Payments Due [Abstract]
2019	$ 5,650
2020	2,655
2021	1,969
2022	1,216
2023	511
Thereafter	$ 1,231

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Acquisitions - Additional Information (Detail) - Sotera Health LLC's Nordion Medical Isotope Business $ in Millions		3 Months Ended
	Jul. 30, 2018 USD ($) facility employee	Mar. 31, 2018 USD ($)
Business Acquisition [Line Items]
Business combination, consideration transferred	$ 213.0
Number of personnel acquired | employee	150
Business acquisition, number of operating facilities | facility	2
Increase in Amortization Expense
Business Acquisition [Line Items]
Adjustment to value of intangible assets		$ 1.5
Additional Interest Expense
Business Acquisition [Line Items]
Adjustment to interest expense		1.5
Elimination of Acquisition Related Costs
Business Acquisition [Line Items]
Acquisition related costs		$ 1.6

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Acquisitions - Business Acquisition Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Jul. 30, 2018
Condensed Income Statements, Captions [Line Items]
Goodwill	$ 275,604	$ 274,082
Sotera Health LLC's Nordion Medical Isotope Business
Condensed Income Statements, Captions [Line Items]
Accounts receivable – trade			$ 7,732
Contracts in progress			51
Inventories			2,113
Other current assets			97
Property, plant and equipment			12,948
Goodwill			62,495
Deferred Income Taxes			3,006
Intangible assets			139,257
Total assets acquired			227,699
Accounts payable			654
Accrued employee benefits			579
Accrued liabilities – other			1,665
Environmental liabilities			2,062
Pension liability			9,746
Total liabilities assumed			14,706
Net assets acquired			212,993
Amount of tax deductible goodwill			$ 53,693

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Acquisitions - Preliminary Intangible Assets Acquired (Detail) - Sotera Health LLC's Nordion Medical Isotope Business - USD ($) $ in Thousands		3 Months Ended
	Jul. 30, 2018	Mar. 31, 2019
Technical support agreement
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	$ 67,500
Amortization Period	23 years
Unpatented technology
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	$ 33,000
Amortization Period	23 years
Favorable operating leases
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	$ 28,157
Customer relationship
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	$ 10,600
Amortization Period	23 years
Minimum | Favorable operating leases
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization Period		13 years
Maximum | Favorable operating leases
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization Period		30 years

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Acquisitions - Unaudited Pro Forma Financial Information (Detail) - Sotera Health LLC's Nordion Medical Isotope Business $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($) $ / shares
Business Acquisition [Line Items]
Revenues | $	$ 467,791
Net Income Attributable to BWX Technologies, Inc. | $	$ 66,890
Basic Earnings per Common Share (in usd per share) | $ / shares	$ 0.67
Diluted Earnings per Common Share (in usd per share) | $ / shares	$ 0.67

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Revenue Recognition - Disaggregated Revenues (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Disaggregation of Revenue [Line Items]
Revenues	$ 416,454	$ 457,463
Revenue from Contract with Customer, Including Assessed Tax	416,454	457,463
Fixed-Price Incentive Fee
Disaggregation of Revenue [Line Items]
Revenues	245,760	253,268
Firm-Fixed-Price
Disaggregation of Revenue [Line Items]
Revenues	107,509	126,750
Cost-Plus Fee
Disaggregation of Revenue [Line Items]
Revenues	42,388	44,231
Time-and-Materials
Disaggregation of Revenue [Line Items]
Revenues	22,637	35,231
Over time
Disaggregation of Revenue [Line Items]
Revenues	404,488	451,773
Point-in-time
Disaggregation of Revenue [Line Items]
Revenues	13,806	7,707
UNITED STATES
Disaggregation of Revenue [Line Items]
Revenues	340,607	345,949
UNITED STATES | Government
Disaggregation of Revenue [Line Items]
Revenues	321,754	342,512
UNITED STATES | Non-Government
Disaggregation of Revenue [Line Items]
Revenues	18,853	3,437
CANADA | Non-Government
Disaggregation of Revenue [Line Items]
Revenues	68,901	83,300
Other | Non-Government
Disaggregation of Revenue [Line Items]
Revenues	8,786	30,231
Nuclear Operations Group
Disaggregation of Revenue [Line Items]
Revenues	304,801	316,631
Nuclear Operations Group | Fixed-Price Incentive Fee
Disaggregation of Revenue [Line Items]
Revenues	245,487	249,240
Nuclear Operations Group | Firm-Fixed-Price
Disaggregation of Revenue [Line Items]
Revenues	39,343	47,058
Nuclear Operations Group | Cost-Plus Fee
Disaggregation of Revenue [Line Items]
Revenues	19,853	20,233
Nuclear Operations Group | Time-and-Materials
Disaggregation of Revenue [Line Items]
Revenues	118	100
Nuclear Operations Group | Over time
Disaggregation of Revenue [Line Items]
Revenues	304,733	316,631
Nuclear Operations Group | Point-in-time
Disaggregation of Revenue [Line Items]
Revenues	68	0
Nuclear Power Group
Disaggregation of Revenue [Line Items]
Revenues	84,399	112,816
Nuclear Power Group | Fixed-Price Incentive Fee
Disaggregation of Revenue [Line Items]
Revenues	273	4,028
Nuclear Power Group | Firm-Fixed-Price
Disaggregation of Revenue [Line Items]
Revenues	61,998	74,282
Nuclear Power Group | Cost-Plus Fee
Disaggregation of Revenue [Line Items]
Revenues	0	45
Nuclear Power Group | Time-and-Materials
Disaggregation of Revenue [Line Items]
Revenues	22,128	34,461
Nuclear Power Group | Over time
Disaggregation of Revenue [Line Items]
Revenues	70,661	105,109
Nuclear Power Group | Point-in-time
Disaggregation of Revenue [Line Items]
Revenues	13,738	7,707
Nuclear Services Group
Disaggregation of Revenue [Line Items]
Revenues	29,094	30,033
Nuclear Services Group | Fixed-Price Incentive Fee
Disaggregation of Revenue [Line Items]
Revenues	0	0
Nuclear Services Group | Firm-Fixed-Price
Disaggregation of Revenue [Line Items]
Revenues	6,168	5,410
Nuclear Services Group | Cost-Plus Fee
Disaggregation of Revenue [Line Items]
Revenues	22,535	23,953
Nuclear Services Group | Time-and-Materials
Disaggregation of Revenue [Line Items]
Revenues	391	670
Nuclear Services Group | Over time
Disaggregation of Revenue [Line Items]
Revenues	29,094	30,033
Nuclear Services Group | Point-in-time
Disaggregation of Revenue [Line Items]
Revenues	0	0
Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	418,294	459,480
Operating Segments | Nuclear Operations Group
Disaggregation of Revenue [Line Items]
Revenues	304,801	316,631
Operating Segments | Nuclear Operations Group | UNITED STATES
Disaggregation of Revenue [Line Items]
Revenues	302,641	316,631
Operating Segments | Nuclear Operations Group | UNITED STATES | Government
Disaggregation of Revenue [Line Items]
Revenues	297,303	316,631
Operating Segments | Nuclear Operations Group | UNITED STATES | Non-Government
Disaggregation of Revenue [Line Items]
Revenues	5,338	0
Operating Segments | Nuclear Operations Group | CANADA | Non-Government
Disaggregation of Revenue [Line Items]
Revenues	0	0
Operating Segments | Nuclear Operations Group | Other | Non-Government
Disaggregation of Revenue [Line Items]
Revenues	2,160	0
Operating Segments | Nuclear Power Group
Disaggregation of Revenue [Line Items]
Revenues	84,399	112,816
Operating Segments | Nuclear Power Group | UNITED STATES
Disaggregation of Revenue [Line Items]
Revenues	9,162	260
Operating Segments | Nuclear Power Group | UNITED STATES | Government
Disaggregation of Revenue [Line Items]
Revenues	0	0
Operating Segments | Nuclear Power Group | UNITED STATES | Non-Government
Disaggregation of Revenue [Line Items]
Revenues	9,162	260
Operating Segments | Nuclear Power Group | CANADA | Non-Government
Disaggregation of Revenue [Line Items]
Revenues	68,611	82,325
Operating Segments | Nuclear Power Group | Other | Non-Government
Disaggregation of Revenue [Line Items]
Revenues	6,626	30,231
Operating Segments | Nuclear Services Group
Disaggregation of Revenue [Line Items]
Revenues	29,094	30,033
Operating Segments | Nuclear Services Group | UNITED STATES
Disaggregation of Revenue [Line Items]
Revenues	28,804	29,058
Operating Segments | Nuclear Services Group | UNITED STATES | Government
Disaggregation of Revenue [Line Items]
Revenues	24,451	25,881
Operating Segments | Nuclear Services Group | UNITED STATES | Non-Government
Disaggregation of Revenue [Line Items]
Revenues	4,353	3,177
Operating Segments | Nuclear Services Group | CANADA | Non-Government
Disaggregation of Revenue [Line Items]
Revenues	290	975
Operating Segments | Nuclear Services Group | Other | Non-Government
Disaggregation of Revenue [Line Items]
Revenues	0	0
Adjustments and Eliminations
Disaggregation of Revenue [Line Items]
Revenues	(1,840)	(2,017)
Adjustments and Eliminations | Nuclear Operations Group
Disaggregation of Revenue [Line Items]
Revenues	$ (857)	$ (1,139)

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Revenue Recognition (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenue from Contract with Customer [Abstract]
Net favorable changes in estimate that resulted in an increase in revenue	$ 4.8	$ 5.3
Contracts in progress increase	33.1
Revenue recognized from advance billings on contracts	$ 33.8	$ 30.4

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Revenue Recognition - Contract Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Contracts with Customers, Asset and Liability [Line Items]
Advance billings on contracts	$ 88,117	$ 98,477
Contracts in Progress
Contracts with Customers, Asset and Liability [Line Items]
Contract with customer, asset	341,776	308,723
Accounts Receivable
Contracts with Customers, Asset and Liability [Line Items]
Contract with customer, asset	72,000	57,885
Other Assets
Contracts with Customers, Asset and Liability [Line Items]
Contract with customer, asset	$ 1,508	$ 1,674

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Revenue Recognition - Remaining Performance Obligations (Details) $ in Millions	3 Months Ended
	Mar. 31, 2019 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation, expected timing of satisfaction, period	9 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation, expected timing of satisfaction, period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total Remaining Performance Obligations	$ 933
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total Remaining Performance Obligations	1,096
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total Remaining Performance Obligations	2,795
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: (nil)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total Remaining Performance Obligations	4,824
Nuclear Operations Group | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total Remaining Performance Obligations	708
Nuclear Operations Group | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total Remaining Performance Obligations	947
Nuclear Operations Group | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total Remaining Performance Obligations	2,355
Nuclear Operations Group | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: (nil)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total Remaining Performance Obligations	4,010
Nuclear Power Group | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total Remaining Performance Obligations	185
Nuclear Power Group | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total Remaining Performance Obligations	146
Nuclear Power Group | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total Remaining Performance Obligations	438
Nuclear Power Group | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: (nil)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total Remaining Performance Obligations	769
Nuclear Services Group | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total Remaining Performance Obligations	40
Nuclear Services Group | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total Remaining Performance Obligations	3
Nuclear Services Group | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total Remaining Performance Obligations	2
Nuclear Services Group | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: (nil)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total Remaining Performance Obligations	$ 45

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Pension Plans and Postretirement Benefits - (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Retirement Benefits [Abstract]
Service cost	$ 2.6	$ 2.6
Net periodic benefit (income) cost, excluding service costs	$ (5.2)	$ (8.9)

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Pension Plans and Postretirement Benefits - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 2,600	$ 2,600
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	2,456	2,413
Interest cost	11,592	12,343
Expected return on plan assets	(17,436)	(21,625)
Amortization of prior service cost (credit)	725	550
Net periodic benefit (income) cost	(2,663)	(6,319)
Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	145	165
Interest cost	585	549
Expected return on plan assets	(627)	(634)
Amortization of prior service cost (credit)	(78)	(45)
Net periodic benefit (income) cost	$ 25	$ 35

XML

Fair Value Measurements - Summary of Investments and Available-for-Sale Securities Measured at Fair Value (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt and Equity Securities	$ 12,199	$ 10,979
Equities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	1,919	1,163
Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	5,130	4,694
U.S. Government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	1,979	2,227
Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	3,082	2,803
Asset-backed securities and collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	89	92
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt and Equity Securities	3,439	3,660
Level 1 | Equities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
Level 1 | Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
Level 1 | U.S. Government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	1,979	2,227
Level 1 | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	1,460	1,433
Level 1 | Asset-backed securities and collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt and Equity Securities	8,760	7,319
Level 2 | Equities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	1,919	1,163
Level 2 | Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	5,130	4,694
Level 2 | U.S. Government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Level 2 | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	1,622	1,370
Level 2 | Asset-backed securities and collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	89	92
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt and Equity Securities	0	0
Level 3 | Equities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
Level 3 | Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
Level 3 | U.S. Government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Level 3 | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Level 3 | Asset-backed securities and collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	$ 0	$ 0

XML

Fair Value Measurements - Additional Information (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
FX Forward Contracts
Fair Values Of Financial Instruments [Line Items]
Fair value of foreign currency forward contracts	$ (0.2)	$ 0.7
Senior Notes
Fair Values Of Financial Instruments [Line Items]
Stated interest rate on senior notes	5.375%
Fair value of senior notes	$ 406.2	$ 384.9

XML

Stock-Based Compensation - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock based compensation expense	$ 3.6	$ 4.9
Stock-based compensation, tax benefits	$ 0.6	$ 0.9

XML

Segment Reporting - Additional Information (Details)	3 Months Ended
	Mar. 31, 2019 segment
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]
Number of reportable segments	3

XML

Segment Reporting - Schedule of Operating Results by Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Segment Reporting, Other Significant Reconciling Item [Line Items]
Revenues	$ 416,454	$ 457,463
OPERATING INCOME:
Operating Income	63,644	79,888
Other Income (Expense):
Interest income	415	778
Interest expense	(8,703)	(3,560)
Other – net	7,521	7,910
Total Other Income (Expense)	(767)	5,128
Income before Provision for Income Taxes	62,877	85,016
Nuclear Operations Group
Segment Reporting, Other Significant Reconciling Item [Line Items]
Revenues	304,801	316,631
Operating Segments
Segment Reporting, Other Significant Reconciling Item [Line Items]
Revenues	418,294	459,480
OPERATING INCOME:
Operating Income	65,683	86,555
Operating Segments | Nuclear Operations Group
Segment Reporting, Other Significant Reconciling Item [Line Items]
Revenues	304,801	316,631
OPERATING INCOME:
Operating Income	57,625	67,657
Operating Segments | Nuclear Power Group
Segment Reporting, Other Significant Reconciling Item [Line Items]
Revenues	84,399	112,816
OPERATING INCOME:
Operating Income	12,583	21,764
Operating Segments | Nuclear Services Group
Segment Reporting, Other Significant Reconciling Item [Line Items]
Revenues	29,094	30,033
OPERATING INCOME:
Operating Income	1,571	1,177
Adjustments and Eliminations
Segment Reporting, Other Significant Reconciling Item [Line Items]
Revenues	(1,840)	(2,017)
Adjustments and Eliminations | Nuclear Operations Group
Segment Reporting, Other Significant Reconciling Item [Line Items]
Revenues	(857)	(1,139)
Adjustments and Eliminations | Nuclear Power Group
Segment Reporting, Other Significant Reconciling Item [Line Items]
Revenues	(40)	(40)
Adjustments and Eliminations | Nuclear Services Group
Segment Reporting, Other Significant Reconciling Item [Line Items]
Revenues	(943)	(838)
Segment Reconciling Items [Member]
OPERATING INCOME:
Operating Income	(6,096)	(4,043)
Unallocated Corporate
OPERATING INCOME:
Operating Income	$ (2,039)	$ (6,667)

XML

Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Basic:
Net Income Attributable to BWX Technologies, Inc.	$ 48,978	$ 66,441
Weighted-average common shares (in shares)	95,255,109	99,526,187
Basic earnings per common share (in usd per share)	$ 0.51	$ 0.67
Diluted:
Net Income Attributable to BWX Technologies, Inc.	$ 48,978	$ 66,441
Weighted-average common shares (in shares)	95,255,109	99,526,187
Effect of dilutive securities:
Stock options, restricted stock units and performance shares (in shares)	566,245	986,100
Adjusted weighted-average common shares (in shares)	95,821,354	100,512,287
Diluted earnings per common share (in usd per share)	$ 0.51	$ 0.66
Number of shares that would be antidilutive (in shares)	181,358	79,278

XML

Label	Element	Value
AOCI Attributable to Parent [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ (3,385,000)
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	77,000
Parent [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	9,926,000
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ (1,142,000)