10-Q

cover

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 10-Q

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

For the quarterly period ended June 30, 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 Number: 001-16545

Atlas Air Worldwide Holdings, Inc.

(Exact name of registrant as specified in its charter)

Delaware	13-4146982
(State or other jurisdiction of incorporation)	(IRS Employer Identification No.)
2000 Westchester Avenue, Purchase, New York	10577
(Address of principal executive offices)	(Zip Code)

(914) 701-8000

(Registrant’s telephone number, including area code)

Not Applicable

(Former name, former address and former fiscal year, if changed since last report)

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, $0.01 Par Value	AAWW	The NASDAQ Global Select Market

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

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§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  ☒    No  ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See 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 ☒      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  ☒

As of July 26, 2019, there were 25,854,140 shares of the registrant’s Common Stock outstanding.

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

TABLE OF CONTENTS

		Page
Part I. FINANCIAL INFORMATION
Item 1.	Financial Statements	3
	Consolidated Balance Sheets as of June 30, 2019 and December 31, 2018 (unaudited)	3
	Consolidated Statements of Operations for the Three and Six Months Ended June 30, 2019 and 2018 (unaudited)	4
	Consolidated Statements of Comprehensive Income (Loss) for the Three and Six Months Ended June 30, 2019 and 2018 (unaudited)	5
	Consolidated Statements of Cash Flows for the Six Months ended June 30, 2019 and 2018 (unaudited)	6
	Consolidated Statements of Stockholders’ Equity as of and for the Three and Six Months ended June 30, 2019 and 2018 (unaudited)	7
	Notes to Unaudited Consolidated Financial Statements	8
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	22
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	36
Item 4.	Controls and Procedures	36
PART II. OTHER INFORMATION
Item 1.	Legal Proceedings	37
Item 1A.	Risk Factors	37
Item 6.	Exhibits	37
	Exhibit Index	38
	Signatures	39

PART I — FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

Atlas Air Worldwide Holdings, Inc.

Consolidated Balance Sheets

(in thousands, except share data)

(Unaudited)

	June 30, 2019			December 31, 2018
Assets
Current Assets
Cash and cash equivalents	$	110,665		$	221,501
Short-term investments		7,153			15,624
Restricted cash		10,093			11,240
Accounts receivable, net of allowance of $1,633 and $1,563, respectively		265,489			269,320
Prepaid expenses and other current assets		81,900			112,146
Total current assets		475,300			629,831
Property and Equipment
Flight equipment		5,252,971			5,213,734
Ground equipment		83,250			75,939
Less:  accumulated depreciation		(954,100	)		(860,354	)
Flight equipment modifications in progress		128,166			32,916
Property and equipment, net		4,510,287			4,462,235
Other Assets
Operating lease right-of-use assets		538,631			-
Deferred costs and other assets		377,962			345,037
Intangible assets, net and goodwill		83,162			97,689
Total Assets	$	5,985,342		$	5,534,792
Liabilities and Equity
Current Liabilities
Accounts payable	$	66,441		$	87,229
Accrued liabilities		485,436			465,669
Current portion of long-term debt and finance lease		268,686			264,835
Current portion of long-term operating leases		146,091			-
Total current liabilities		966,654			817,733
Other Liabilities
Long-term debt and finance lease		2,125,228			2,205,005
Long-term operating leases		445,821			-
Deferred taxes		195,608			256,970
Financial instruments and other liabilities		124,922			187,120
Total other liabilities		2,891,579			2,649,095
Commitments and contingencies
Equity
Stockholders’ Equity
Preferred stock, $1 par value; 10,000,000 shares authorized; no shares issued		-			-
Common stock, $0.01 par value; 100,000,000 shares authorized;     31,026,500 and 30,582,571 shares issued, 25,854,140 and 25,590,293     shares outstanding (net of treasury stock), as of June 30, 2019     and December 31, 2018, respectively		310			306
Additional paid-in-capital		746,725			736,035
Treasury stock, at cost; 5,172,360 and 4,992,278 shares, respectively		(213,728	)		(204,501	)
Accumulated other comprehensive loss		(3,312	)		(3,832	)
Retained earnings		1,597,114			1,539,956
Total stockholders’ equity		2,127,109			2,067,964
Total Liabilities and Equity	$	5,985,342		$	5,534,792

See accompanying Notes to Unaudited Consolidated Financial Statements

3

Atlas Air Worldwide Holdings, Inc.

Consolidated Statements of Operations

(in thousands, except per share data)

(Unaudited)

	For the Three Months Ended						For the Six Months Ended
	June 30, 2019			June 30, 2018			June 30, 2019			June 30, 2018
Operating Revenue	$	663,918		$	666,145		$	1,343,601		$	1,256,159
Operating Expenses
Salaries, wages and benefits		141,450			129,176			286,924			254,258
Aircraft fuel		122,158			129,706			228,479			226,009
Maintenance, materials and repairs		113,471			88,236			217,091			173,115
Depreciation and amortization		63,689			50,834			128,170			100,464
Travel		46,374			42,358			91,403			82,205
Aircraft rent		40,335			40,281			82,223			79,805
Navigation fees, landing fees and other rent		37,982			37,698			78,198			73,295
Passenger and ground handling services		30,525			30,202			62,685			58,264
Special charge		3,269			9,374			3,269			9,374
Transaction-related expenses		734			240			3,261			510
Other		54,961			47,094			106,054			97,345
Total Operating Expenses		654,948			605,199			1,287,757			1,154,644
Operating Income		8,970			60,946			55,844			101,515
Non-operating  Expenses (Income)
Interest income		(1,278	)		(1,388	)		(3,322	)		(3,112	)
Interest expense		30,045			29,182			60,398			56,524
Capitalized interest		(627	)		(1,465	)		(1,090	)		(3,215	)
Loss on early extinguishment of debt		-			-			245			-
Unrealized (gain) loss on financial instruments		(42,300	)		50,031			4,275			57,771
Other (income) expense, net		945			(7,277	)		(2,030	)		(11,752	)
Total Non-operating Expenses (Income)		(13,215	)		69,083			58,476			96,216
Income (loss) from continuing operations before income taxes		22,185			(8,137	)		(2,632	)		5,299
Income tax (benefit) expense		(64,683	)		12,986			(59,790	)		16,794
Income (loss) from continuing operations, net of taxes		86,868			(21,123	)		57,158			(11,495	)
Loss from discontinued operations, net of taxes		-			(27	)		-			(43	)
Net Income (Loss)	$	86,868		$	(21,150	)	$	57,158		$	(11,538	)
Earnings (loss) per share from continuing operations:
Basic	$	3.36		$	(0.83	)	$	2.22		$	(0.45	)
Diluted	$	1.61		$	(0.83	)	$	2.21		$	(0.45	)
Loss per share from discontinued operations:
Basic	$	-		$	(0.00	)	$	-		$	(0.00	)
Diluted	$	-		$	(0.00	)	$	-		$	(0.00	)
Earnings (loss) per share:
Basic	$	3.36		$	(0.83	)	$	2.22		$	(0.45	)
Diluted	$	1.61		$	(0.83	)	$	2.21		$	(0.45	)
Weighted average shares:
Basic		25,851			25,565			25,794			25,501
Diluted		26,953			25,565			25,921			25,501

See accompanying Notes to Unaudited Consolidated Financial Statements

4

Atlas Air Worldwide Holdings, Inc.

Consolidated Statements of Comprehensive Income (Loss)

(in thousands)

(Unaudited)

	For the Three Months Ended						For the Six Months Ended
	June 30, 2019			June 30, 2018			June 30, 2019			June 30, 2018
Net Income (Loss)	$	86,868		$	(21,150	)	$	57,158		$	(11,538	)
Other comprehensive income:
Reclassification to interest expense		337			365			681			750
Income tax expense		(80	)		(120	)		(161	)		(177	)
Other comprehensive income		257			245			520			573
Comprehensive Income (Loss)	$	87,125		$	(20,905	)	$	57,678		$	(10,965	)

See accompanying Notes to Unaudited Consolidated Financial Statements

5

Atlas Air Worldwide Holdings, Inc.

Consolidated Statements of Cash Flows

(in thousands)

(Unaudited)

	For the Six Months Ended
	June 30, 2019			June 30, 2018
Operating Activities:
Income (loss) from continuing operations, net of taxes	$	57,158		$	(11,495	)
Less: Loss from discontinued operations, net of taxes		-			(43	)
Net Income (Loss)		57,158			(11,538	)
Adjustments to reconcile Net Income (Loss) to net cash provided by operating activities:
Depreciation and amortization		157,820			121,606
Accretion of debt securities discount		208			(512	)
Provision for allowance for doubtful accounts		4			1,179
Loss on early extinguishment of debt		245			-
Special charge, net of cash payments		3,269			9,374
Unrealized loss on financial instruments		4,275			57,771
Deferred taxes		(60,122	)		16,561
Stock-based compensation		10,025			10,627
Changes in:
Accounts receivable		26			(27,699	)
Prepaid expenses, current assets and other assets		(23,835	)		(10,815	)
Accounts payable and accrued liabilities		(40,076	)		9,357
Net cash provided by operating activities		108,997			175,911
Investing Activities:
Capital expenditures		(76,754	)		(54,791	)
Payments for flight equipment and modifications		(99,161	)		(448,388	)
Proceeds from insurance		38,133			-
Proceeds from investments		9,313			5,399
Net cash used for investing activities		(128,469	)		(497,780	)
Financing Activities:
Proceeds from debt issuance		19,723			305,059
Payment of debt issuance costs		(955	)		(4,781	)
Payments of debt and finance lease obligations		(160,091	)		(115,194	)
Proceeds from revolving credit facility		50,000			135,000
Payment of revolving credit facility		-			(60,000	)
Customer maintenance reserves and deposits received		8,039			8,169
Purchase of treasury stock		(9,227	)		(10,319	)
Net cash provided by (used for) financing activities		(92,511	)		257,934
Net decrease in cash, cash equivalents and restricted cash		(111,983	)		(63,935	)
Cash, cash equivalents and restricted cash at the beginning of period		232,741			291,864
Cash, cash equivalents and restricted cash at the end of period	$	120,758		$	227,929
Noncash Investing and Financing Activities:
Acquisition of flight equipment included in Accounts payable and accrued liabilities	$	51,996		$	66,944

See accompanying Notes to Unaudited Consolidated Financial Statements

6

Atlas Air Worldwide Holdings, Inc.

Consolidated Statements of Stockholders’ Equity

(in thousands, except share data)

(Unaudited)

	As of and for the Three Months Ended June 30, 2019
						Additional							Total
	Common		Treasury			Paid-In		Accumulated Other			Retained		Stockholders'
	Stock		Stock			Capital		Comprehensive Loss			Earnings		Equity
Balance at March 31, 2019	$	310	$	(213,690	)	$	741,652	$	(3,569	)	$	1,510,246	$	2,034,949
Net Income (Loss)		-		-			-		-			86,868		86,868
Other comprehensive income		-		-			-		257			-		257
Stock-based compensation		-		-			4,404		-			-		4,404
Customer warrant		-		-			669		-			-		669
Purchase of 743 shares of treasury stock		-		(38	)		-		-			-		(38	)
Issuance of 4,385 shares of restricted stock		-		-			-		-			-		-
Balance at June 30, 2019	$	310	$	(213,728	)	$	746,725	$	(3,312	)	$	1,597,114	$	2,127,109

	As of and for the Three Months Ended June 30, 2018
						Additional									Total
	Common		Treasury			Paid-In			Accumulated Other			Retained			Stockholders'
	Stock		Stock			Capital			Comprehensive Loss			Earnings			Equity
Balance at March 31, 2018	$	305	$	(203,950	)	$	721,577		$	(4,635	)	$	1,279,001		$	1,792,298
Net Income (Loss)		-		-			-			-			(21,150	)		(21,150	)
Other comprehensive income		-		-			-			245			-			245
Stock-based compensation		-		-			4,781			-			-			4,781
Purchase of 1,500 shares of treasury stock		-		(101	)		-			-			-			(101	)
Issuance of 15,863 shares of restricted stock		1		-			(1	)		-			-			-
Balance at June 30, 2018	$	306	$	(204,051	)	$	726,357		$	(4,390	)	$	1,257,851		$	1,776,073

	As of and for the Six Months Ended June 30, 2019
						Additional								Total
	Common		Treasury			Paid-In			Accumulated Other			Retained		Stockholders'
	Stock		Stock			Capital			Comprehensive Loss			Earnings		Equity
Balance at December 31, 2018	$	306	$	(204,501	)	$	736,035		$	(3,832	)	$	1,539,956	$	2,067,964
Net Income (Loss)		-		-			-			-			57,158		57,158
Other comprehensive income		-		-			-			520			-		520
Stock-based compensation		-		-			10,025			-			-		10,025
Customer warrant		-		-			669			-			-		669
Purchase of 180,082 shares of treasury stock		-		(9,227	)		-			-			-		(9,227	)
Issuance of 443,929 shares of restricted stock		4		-			(4	)		-			-		-
Balance at June 30, 2019	$	310	$	(213,728	)	$	746,725		$	(3,312	)	$	1,597,114	$	2,127,109

	As of and for the Six Months Ended June 30, 2018
						Additional									Total
	Common		Treasury			Paid-In			Accumulated Other			Retained			Stockholders'
	Stock		Stock			Capital			Comprehensive Loss			Earnings			Equity
Balance at December 31, 2017	$	301	$	(193,732	)	$	715,735		$	(3,993	)	$	1,271,545		$	1,789,856
Net Income (Loss)		-		-			-			-			(11,538	)		(11,538	)
Other comprehensive income		-		-			-			573			-			573
Cumulative effect of change in accounting principle		-		-			-			-			(3,126	)		(3,126	)
Stock-based compensation		-		-			10,627			-			-			10,627
Purchase of 173,002 shares of treasury stock		-		(10,319	)		-			-			-			(10,319	)
Issuance of 455,589 shares of restricted stock		5		-			(5	)		-			-			-
Reclassification of tax effect on other comprehensive loss		-		-			-			(970	)		970			-
Balance at June 30, 2018	$	306	$	(204,051	)	$	726,357		$	(4,390	)	$	1,257,851		$	1,776,073

See accompanying Notes to Unaudited Consolidated Financial Statements

7

Atlas Air Worldwide Holdings, Inc.

Notes to Unaudited Consolidated Financial Statements

June 30, 2019

1. Basis of Presentation

Our consolidated financial statements include the accounts of the holding company, Atlas Air Worldwide Holdings, Inc. (“AAWW”), and its consolidated subsidiaries.  AAWW is the parent company of Atlas Air, Inc. (“Atlas”) and Southern Air Holdings, Inc. (“Southern Air”).  AAWW is also the parent company of several subsidiaries related to our dry leasing services (collectively referred to as “Titan”).  AAWW has a 51% equity interest and 75% voting interest in Polar Air Cargo Worldwide, Inc. (“Polar”).  We record our share of Polar’s results under the equity method of accounting.

The terms “we,” “us,” “our,” and the “Company” mean AAWW and all entities included in its consolidated financial statements.

We provide outsourced aircraft and aviation operating services throughout the world, serving Africa, Asia, Australia, Europe, the Middle East, North America and South America through: (i) contractual service arrangements, including those through which we provide aircraft to customers and value-added services, including crew, maintenance and insurance (“ACMI”), as well as those through which we provide crew, maintenance and insurance, but not the aircraft (“CMI”); (ii) cargo and passenger charter services (“Charter”); and (iii) dry leasing aircraft and engines (“Dry Leasing” or “Dry Lease”).

The accompanying unaudited consolidated financial statements and related notes (the “Financial Statements”) have been prepared in accordance with the U.S. Securities and Exchange Commission (the “SEC”) requirements for quarterly reports on Form 10-Q, and consequently exclude certain disclosures normally included in audited consolidated financial statements prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”).  Intercompany accounts and transactions have been eliminated.  The Financial Statements should be read in conjunction with the audited consolidated financial statements and the notes included in the AAWW Annual Report on Form 10-K for the year ended December 31, 2018, which includes additional disclosures and a summary of our significant accounting policies.  The December 31, 2018 balance sheet data was derived from that Annual Report.  In our opinion, the Financial Statements contain all adjustments, consisting of normal recurring items, necessary to fairly state the financial position of AAWW and its consolidated subsidiaries as of June 30, 2019, the results of operations for the three and six months ended June 30, 2019 and 2018, comprehensive income (loss) for the three and six months ended June 30, 2019 and 2018, cash flows for the six months ended June 30, 2019 and 2018, and shareholders’ equity as of and for the three and six months ended June 30, 2019 and 2018.

Our quarterly results are subject to seasonal and other fluctuations, and the operating results for any quarter are therefore not necessarily indicative of results that may be otherwise expected for the entire year.

Except for per share data, all dollar amounts are in thousands unless otherwise noted.

2. Summary of Significant Accounting Policies

Warrant Liability

Common stock warrants classified as a liability are marked-to-market at the end of each reporting period with changes in fair value recorded in Unrealized (gain) loss on financial instruments.  We utilize a Monte Carlo simulation approach to estimate the fair value of the warrant liability, which requires inputs such as our common stock price, the warrant strike price, estimated common stock price volatility and risk-free interest rate, among others.  Our earnings are affected by changes in our common stock price due to the impact those changes have on the fair value of our warrant liability (see Note 4 to our Financial Statements).

Heavy Maintenance

Except for engines used on our 747-8F aircraft, we account for heavy maintenance costs for airframes and engines used in our ACMI and Charter segments using the direct expense method. Under this method, heavy maintenance costs are charged to expense upon induction, based on our best estimate of the costs.

We account for heavy maintenance costs for airframes and engines used in our Dry Leasing segment and engines used on our 747-8F aircraft using the deferral method.  Under this method, we defer the expense recognition of scheduled heavy maintenance events, which are amortized over the estimated period until the next scheduled heavy maintenance event is required.  Amortization of deferred maintenance expense included in Depreciation and amortization was $5.3 million and $2.9 million for the three months ended June 30, 2019 and 2018, respectively and was $9.7 million and $5.3 million for the six months ended June 30, 2019 and 2018, respectively.

8

Deferred maintenance included within Deferred costs and other assets is as follows:

	Deferred
	Maintenance
Balance as of December 31, 2018	$	103,647
Deferred maintenance costs		57,915
Amortization of deferred maintenance		(9,690	)
Balance as of June 30, 2019	$	151,872

Recent Accounting Pronouncements Adopted in 2019

In February 2016, the Financial Accounting Standards Board (“FASB”) amended its accounting guidance for leases.  Subsequently, the FASB issued several clarifications and updates.  The guidance requires a lessee to recognize assets and liabilities on the balance sheet arising from leases with terms greater than 12 months.  While lessor accounting guidance is relatively unchanged, certain amendments were made to conform with changes made to lessee accounting and the amended revenue recognition guidance.  The new guidance continues to classify leases as either finance or operating, with classification affecting the presentation and pattern of expense and income recognition, in the statement of operations.  It also requires additional quantitative and qualitative disclosures about leasing arrangements.  We adopted the new guidance on January 1, 2019 using the modified retrospective approach, which was applied beginning on the adoption date.  Comparative information has not been restated and continues to be reported under the accounting guidance in effect for those periods.  The adoption did not have a material effect on our consolidated statements of operations or cash flows. We recognized operating lease right-of-use assets, net of pre-existing deferred rent and operating lease intangibles, and operating lease liabilities on our consolidated balance sheets of approximately $596.9 million and $650.0 million, respectively, on the adoption date (see Note 7 to our Financial Statements).

3. Related Parties

Polar

AAWW has a 51% equity interest and 75% voting interest in Polar.  DHL Network Operations (USA), Inc. (“DHL”), a subsidiary of Deutsche Post AG, holds a 49% equity interest and a 25% voting interest in Polar.  Polar is a variable interest entity that we do not consolidate because we are not the primary beneficiary as the risks associated with the direct costs of operation are with DHL.  Under a 20-year blocked space agreement, which began in 2008, Polar provides air cargo capacity to DHL.  Atlas has several agreements with Polar to provide ACMI, CMI, Dry Leasing, administrative, sales and ground support services to one another.  We do not have any financial exposure to fund debt obligations or operating losses of Polar, except for any liquidated damages that we could incur under these agreements.

The following table summarizes our transactions with Polar:

	For the Three Months Ended				For the Six Months Ended
Revenue and Expenses:	June 30, 2019		June 30, 2018		June 30, 2019		June 30, 2018
Revenue from Polar	$	99,889	$	103,625	$	198,356	$	205,730
Ground handling and airport fees to Polar		545		743		1,063		1,378
Accounts receivable/payable as of:	June 30, 2019		December 31, 2018
Receivables from Polar	$	11,008	$	16,349
Payables to Polar		4,166		2,527
Aggregate Carrying Value of Polar Investment as of:	June 30, 2019		December 31, 2018
Aggregate Carrying Value of Polar Investment	$	4,870	$	4,870

In addition to the amounts in the table above, Atlas recognized revenue of $23.1 million and $24.4 million for the three months ended June 30, 2019 and 2018, respectively, and $46.4 million and $36.6 million for the six months ended June 30, 2019 and 2018, respectively, from flying on behalf of Polar.

GATS

We hold a 50% interest in GATS GP (BVI) Ltd. (“GATS”), a joint venture with an unrelated third party.  As of June 30, 2019 and December 31, 2018, our investment in GATS was $21.4 million and $22.3 million, respectively.  We had Accounts payable to GATS of $0.7 million as of June 30, 2019 and $0.5 million as of December 31, 2018.

9

4. Amazon

In May 2016, we entered into certain agreements with Amazon.com, Inc. and its subsidiary, Amazon Fulfillment Services, Inc., (collectively “Amazon”), which involves, among other things, CMI operation of up to 20 Boeing 767-300 freighter aircraft for Amazon by Atlas, as well as Dry Leasing by Titan.  The Dry Leases have a term of ten years from the commencement of each agreement, while the CMI operations are for seven years from the commencement of each agreement (with an option for Amazon to extend the term to ten years).  Between August 2016 and November 2018, we placed all 20 767-300 freighter aircraft into service for Amazon.  In February 2019, the number of 767-300 freighters in service for Amazon was reduced to 19 with the loss of an aircraft.

In conjunction with the agreements entered into in May 2016, we granted Amazon a warrant providing the right to acquire up to 20% of our outstanding common shares, after giving effect to the issuance of shares pursuant to the warrants, at an exercise price of $37.50 per share (“Warrant A”).  As of December 31, 2018, this warrant to purchase 7.5 million shares had vested in full.  Warrant A is exercisable in accordance with its terms through 2021.  As of June 30, 2019, no portion of Warrant A has been exercised.

The agreements entered into in May 2016 also provided incentives for future growth of the relationship as Amazon may increase its business with us.  In that regard, we granted Amazon a warrant to acquire up to an additional 10% of our outstanding common shares, after giving effect to the issuance of shares pursuant to the warrants, for an exercise price of $37.50 per share (“Warrant B”).  This warrant to purchase 3.75 million shares will vest in increments of 37,500 shares each time Amazon has paid $4.2 million of revenue to us, up to a total of $420.0 million, for incremental business beyond the original 20 767-300 freighters.  As of June 30, 2019, no portion of Warrant B has vested.  Upon vesting, Warrant B would become exercisable in accordance with its terms through May 2023.

In March 2019, we amended the agreements entered into in 2016 with Amazon, pursuant to which we will provide CMI services using Boeing 737-800 freighter aircraft provided by Amazon.  The 737-800 CMI operations will be for a term of seven years from the commencement of each agreement (with an option for Amazon to extend the term to ten years).  The first three of five 737-800 freighter aircraft entered service during the second quarter of 2019 and the remaining two are expected to enter service during the second half of 2019.  Amazon may, in its sole discretion, place up to 15 additional 737-800 freighter aircraft into service with us by May 31, 2021.

In connection with the amended agreements, we granted Amazon a warrant to acquire up to an additional 9.9% of our outstanding common shares, after giving effect to the issuance of shares pursuant to the warrants, for an exercise price of $52.90 per share (“Warrant C”).  When combined with Warrant A and Warrant B, this would allow Amazon to acquire up to a total of 39.9% (after the issuance) of our outstanding common shares and Amazon would be entitled to vote the shares it owns up to 14.9% of our outstanding common shares, in its discretion.  Amazon would be required to vote any shares it owns in excess of 14.9% of our outstanding common shares in accordance with the recommendation of our board of directors.  After Warrant B has vested in full, this warrant to purchase 6.6 million shares would vest in increments of 45,428 shares each time Amazon has paid $6.9 million of revenue to us, up to a total of $1.0 billion, for incremental business beyond Warrant A and Warrant B.  As of June 30, 2019, no portion of Warrant C has vested.  Upon vesting, Warrant C would become exercisable in accordance with its terms through March 2026.

At the time of vesting, the fair value of the vested portion of the warrants issued to Amazon is recorded as a warrant liability within Financial instruments and other liabilities (the “Amazon Warrant”).  The initial fair value of the vested portion of Warrant A was recognized as a customer incentive asset within Deferred costs and other assets, net and is amortized as a reduction of Operating Revenue in proportion to the amount of revenue recognized over the terms of the Dry Leases and CMI agreements.  Determining the amount of amortization related to the CMI agreements requires significant judgment to estimate the total number of Block Hours expected over the terms of those agreements.  

When it becomes probable that an increment of either Warrant B or C will vest and the related revenue begins to be recognized, the fair value of such portion is recorded as Additional paid-in-capital. The initial fair value of such increment is also recognized as a customer incentive asset within Deferred costs and other assets, net and is amortized as a reduction of Operating Revenue in proportion to the amount of related revenue recognized. At the time of vesting, the amount recorded in Additional paid-in-capital would be reclassified to the Amazon Warrant liability.

The following table provides a summary of the customer incentive asset:

Balance at December 31, 2018	$	184,720
Initial value for estimate of vested or expected to vest warrants		669
Amortization of customer incentive asset		(13,222	)
Balance at June 30, 2019	$	172,167

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We amortized $6.9 million and $3.3 million of the customer incentive asset for the three months ended June 30, 2019 and 2018, respectively.  We amortized $13.2 million and $5.9 million of the customer incentive asset for the six months ended June 30, 2019 and 2018, respectively.  There were no impairment losses for the six months ended June 30, 2019 and 2018.  

The Amazon Warrant liability is marked-to-market at the end of each reporting period with changes in fair value recorded in Unrealized (gain) loss on financial instruments.  We recognized a net unrealized gain of $42.3 million and a net unrealized loss of $4.3 million on the Amazon Warrant during the three and six months ended June 30, 2019, respectively. We recognized net unrealized losses of $50.0 million and $57.8 million on the Amazon Warrant during the three and six months ended June 30, 2018, respectively. The fair value of the Amazon Warrant liability was $103.3 million as of June 30, 2019 and $99.0 million as of December 31, 2018.

5. Supplemental Balance Sheet and Cash Flow Information

Accounts Receivable

Accounts receivable, net of allowance related to customer contracts, excluding Dry Leasing contracts, was $204.2 million as of June 30, 2019 and $227.1 million as of December 31, 2018.

Accrued Liabilities

Accrued liabilities consisted of the following as of: 

	June 30, 2019		December 31, 2018
Maintenance	$	140,865	$	133,337
Customer maintenance reserves		112,459		104,454
Salaries, wages and benefits		48,247		82,809
Aircraft fuel		40,890		32,641
Deferred revenue		26,108		26,584
Other		116,867		85,844
Accrued liabilities	$	485,436	$	465,669

Revenue Contract Liability

Deferred revenue for customer contracts, excluding Dry Leasing contracts, represents amounts collected from, or invoiced to, customers in advance of revenue recognition.  The balance of Deferred revenue will increase or decrease based on the timing of invoices and recognition of revenue.

Significant changes in our Revenue contract liability balances during the six months ended June 30, 2019 were as follows:

Balance as of December 31, 2018	$	13,007
Revenue recognized		(63,467	)
Amounts collected or invoiced		66,438
Balance as of June 30, 2019	$	15,978

Supplemental Cash Flow Information

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the consolidated balance sheets that sum to the total shown in the consolidated statements of cash flows:

	June 30, 2019		December 31, 2018
Cash and cash equivalents	$	110,665	$	221,501
Restricted cash		10,093		11,240
Total Cash, cash equivalents and restricted cash shown in Consolidated Statements of Cash Flows	$	120,758	$	232,741

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6. Debt

Term Loans

In March 2019, we borrowed $19.7 million under an unsecured five-year term loan due in March 2024 (the “First 2019 Term Loan”) for GEnx engine performance upgrade kits and overhauls.  The First 2019 Term Loan contains customary covenants, events of default and accrues interest at a fixed rate of 2.73%, with principal and interest payable quarterly.

In March 2019, we received $41.1 million in proceeds from insurance related to the loss of a 767-300 freighter aircraft and used $20.7 million of the proceeds to repay two term loans related to the aircraft.  In connection with the repayment, we recognized a $0.2 million loss on early of extinguishment of debt.  During the six months ended June 30, 2019, we also recognized a net insurance recovery of $3.4 million resulting from the excess of insurance proceeds over the carrying amount of the aircraft and other related costs within Other income, net.  

Convertible Notes

In May 2017, we issued $289.0 million aggregate principal amount of 1.875% convertible senior notes that mature on June 1, 2024 (the “2017 Convertible Notes”) in an underwritten public offering.  In June 2015, we issued $224.5 million aggregate principal amount of 2.25% convertible senior notes that mature on June 1, 2022 (the “2015 Convertible Notes”) in an underwritten public offering.  The 2017 Convertible Notes and the 2015 Convertible Notes (collectively, the “Convertible Notes”) are senior unsecured obligations and accrue interest payable semiannually on June 1 and December 1 of each year.  The Convertible Notes are due on their respective maturity dates, unless earlier converted or repurchased pursuant to their respective terms.

The Convertible Notes consisted of the following as of June 30, 2019:

	2017 Convertible Notes			2015 Convertible Notes
Remaining life in months		59			35
Liability component:
Gross proceeds	$	289,000		$	224,500
Less: debt discount, net of amortization		(52,174	)		(24,974	)
Less: debt issuance cost, net of amortization		(4,085	)		(2,342	)
Net carrying amount	$	232,741		$	197,184
Equity component (1)	$	70,140		$	52,903

(1) Included in Additional paid-in capital on the consolidated balance sheet as of June 30, 2019.

The following table presents the amount of interest expense recognized related to the Convertible Notes:

	For the Three Months Ended				For the Six Months Ended
	June 30, 2019		June 30, 2018		June 30, 2019		June 30, 2018
Contractual interest coupon	$	2,618	$	2,618	$	5,235	$	5,235
Amortization of debt discount		4,186		3,932		8,308		7,804
Amortization of debt issuance costs		375		363		747		722
Total interest expense recognized	$	7,179	$	6,913	$	14,290	$	13,761

Revolving Credit Facility

In December 2018, we amended and extended our previous three-year $150.0 million secured revolving credit facility into a new four-year $200.0 million secured revolving credit facility (the “Revolver”). As of June 30, 2019, there was $50.0 million outstanding and we had $93.5 million of unused availability under the Revolver, based on the collateral borrowing base.

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7. Leases and Guarantees

Adoption

We adopted the new lease accounting guidance using the modified retrospective method and applied it to all leases based on the contract terms in effect as of January 1, 2019.  For existing contracts, we carried forward our historical assessments of (1) whether contracts are or contain leases, (2) lease classification and (3) initial direct costs.    

Although our performance obligations under ACMI contracts include the provision of aircraft to customers, we do not separate any potential aircraft lease components from the nonlease components of these contracts as the provision of the crew, maintenance and insurance components are, in the aggregate, the predominant components.  Such contracts are accounted for in their entirety under the amended guidance for revenue recognition.

Lessee

As of June 30, 2019, we lease 21 aircraft, of which 20 are operating leases.  Lease expirations for our leased aircraft range from March 2020 to June 2032.  In addition, we lease a variety of office space, airport station locations, warehouse space, vehicles and equipment, with lease expirations ranging from July 2019 to April 2025.  We also incur variable rental costs for aircraft, engines, ground equipment and storage space based on usage of the underlying equipment or property.  For leases with terms greater than 12 months, including renewal options when appropriate, we record the related right-of-use asset and lease liability as the present value of fixed lease payments over the lease term.  Since our leases do not typically provide a readily determinable discount rate, we use our incremental borrowing rate to discount lease payments to present value.

The following table presents the lease-related assets and liabilities recorded on the consolidated balance sheet:

	Classification on the Consolidated Balance Sheets	June 30, 2019
Assets
Operating lease right-of-use assets	Operating lease right-of-use assets	$	538,631
Finance lease assets	Property and equipment, net		30,419
Less: Accumulated amortization on finance lease assets	Property and equipment, net		(4,508	)
Total lease assets		$	564,542
Liabilities
Current
Operating lease liabilities	Current portion of long-term operating leases	$	146,091
Finance lease liabilities	Current portion of long-term debt and finance lease		680
Noncurrent
Operating lease liabilities	Long-term operating leases		445,821
Finance lease liabilities	Long-term debt and finance lease		29,998
Total lease liabilities		$	622,590

Weighted Average Remaining Lease Term in years
Operating Leases	4.23
Finance Leases	13.00
Weighted Average Discount Rate
Operating Leases	4.59	%
Finance Leases	17.46	%

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The following table presents information related to lease costs for finance and operating leases:

	For the Three Months Ended		For the Six Months Ended
	June 30, 2019		June 30, 2019
Operating lease costs (1)	$	40,156	$	80,081
Variable operating lease costs (1)		3,985		9,297
Finance lease costs:
Amortization of leased assets		499		997
Interest on lease liabilities		1,340		2,673
Total lease cost	$	45,980	$	93,048

(1) Expenses are classified within Aircraft rent and Navigation fees, landing fees and other rent on the consolidated statement of operations.  Short-term lease contracts are not material.

The table below presents supplemental cash flow information related to leases as follows:

	For the Six Months Ended
	June 30, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	$	79,828
Operating cash flows for finance lease		2,673
Financing cash flows for finance lease		327

As of June 30, 2019, maturities of lease liabilities for the periods indicated were as follows:

	Operating		Finance
	Leases		Lease		Total
2019	$	88,008	$	3,000	$	91,008
2020		160,931		6,000		166,931
2021		167,204		6,000		173,204
2022		116,603		6,000		122,603
2023		62,773		6,000		68,773
Thereafter		54,760		50,500		105,260
Total minimum rental payments		650,279		77,500		727,779
Less: imputed interest		58,367		46,822		105,189
Total	$	591,912	$	30,678	$	622,590

As of June 30, 2019, the Company’s obligations for operating leases that have not yet commenced are immaterial.

As of December 31, 2018, our minimum annual rental commitments for the periods indicated under operating leases with initial or remaining terms of more than one year were as follows:

	Operating
	Leases
2019	$	166,516
2020		159,383
2021		166,056
2022		115,591
2023		61,755
Thereafter		53,430
Total	$	722,731

Lessor

Our performance obligations under Dry Lease contracts involve the provision of aircraft and engines to customers for compensation that is typically based on a fixed monthly amount and all are accounted for as operating leases.  We record Dry Lease rental income on a straight-line basis over the term of the operating lease.  Dry Lease rental income subject to adjustment based on an index is recognized on a straight-line basis over each adjustment period.  Our Dry Leases do not contain purchase options, renewal options or residual guarantees.  In addition, our Dry Leases typically do not contain early termination options.  If they do, there are typically substantial termination penalties.  Rentals received but unearned under the lease agreements are recorded in deferred revenue and included in Accrued liabilities until earned.  

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To manage our residual value risk, we require lessees to perform maintenance on the Dry Leased asset and they may also be required to make maintenance payments to us during or at the end of the lease term.  When an aircraft is returned at the end of lease, if we choose not to re-lease or sell the returned aircraft, we typically have the ability to operate the aircraft in our ACMI and Charter segments.

Customer maintenance reserves are amounts received during the lease term that are subject to reimbursement to the lessee upon the completion of qualifying maintenance work on the specific Dry Leased asset and are included in Accrued liabilities.  We defer revenue recognition for customer maintenance reserves until the end of the lease, when we are able to finalize the amount, if any, to be reimbursed to the lessee.

End of lease maintenance payments are amounts received upon return of the Dry Leased asset based on the utilization of the asset during the lease term.  Such payments made to us are recognized as revenue at the end of the lease.

As of June 30, 2019, our contractual amount of minimum receipts, excluding taxes, for the periods indicated under Dry Leases reflecting the terms that were in effect were as follows:

2019	$	86,864
2020		166,056
2021		145,174
2022		137,636
2023		104,008
Thereafter		246,466
Total minimum lease receipts	$	886,204

As of December 31, 2018, our contractual amount of minimum receipts, excluding taxes, for the periods indicated under Dry Leases reflecting the terms that were in effect were as follows:

	Dry Lease
	Income
2019	$	180,366
2020		169,202
2021		148,413
2022		140,876
2023		107,248
Thereafter		257,248
Total minimum lease receipts	$	1,003,353

The net book value of flight equipment on Dry Lease to customers was $1,656.2 million as of June 30, 2019 and $1,717.5 million as of December 31, 2018.  The accumulated depreciation for flight equipment on Dry Lease to customers was $268.2 million as of June 30, 2019 and $232.4 million as of December 31, 2018.  See Note 10 to our Financial Statements for disclosure of our Dry Leasing segment revenue.

Guarantees and Indemnifications

In the ordinary course of business, we enter into numerous leasing and financing arrangements for real estate, equipment, aircraft and engines that have various guarantees included in the contracts. These guarantees are primarily in the form of indemnities. In both leasing and financing transactions, we typically indemnify the lessors and any financing parties against tort liabilities that arise out of the use, occupancy, manufacture, design, operation or maintenance of the leased premises or financed aircraft, regardless of whether these liabilities relate to the negligence of the indemnified parties. Currently, we believe that any future payments required under many of these guarantees or indemnities would be immaterial, as most tort liabilities and related indemnities are covered by insurance (subject to deductibles).  However, payments under certain tax indemnities related to certain of our financing arrangements, if applicable, could be material, and would not be covered by insurance, although we believe that these payments are not probable.  Certain leased premises, such as maintenance and storage facilities, typically include indemnities of such parties for any environmental liability that may arise out of or relate to the use of the leased premises.  We also provide standard indemnification agreements to officers and directors in the ordinary course of business.

Financings and Guarantees

Our financing arrangements typically contain a withholding tax provision that requires us to pay additional amounts to the applicable lender or other financing party, if withholding taxes are imposed on such lender or other financing party as a result of a change in the applicable tax law.  These increased costs and withholding tax provisions continue for the entire term of the applicable

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transaction and there is no limitation on the maximum additional amount we could be required to pay under such provisions. Any failure to pay amounts due under such provisions generally would trigger an event of default and, in a secured financing transaction, would entitle the lender to foreclose upon the collateral to realize the amount due.

8. Income Taxes

During the three months ended June 30, 2019, the Internal Revenue Service (“IRS”) completed its examination of our 2015 income tax return without adjustment.  As a result, we recognized $54.6 million of previously unrecognized income tax benefits and reduced our valuation allowance by recording a $5.2 million income tax benefit.

The effective income tax benefit for the three and six months ended June 30, 2019 differed from tax at the U.S. statutory rate primarily due to $59.8 million of tax benefits related to the favorable completion of the IRS’s examination of our 2015 income tax return, and to a lesser extent for the three months ended June 30, 2019, $9.3 million of nontaxable changes in the fair value of the customer warrant liability (see Note 4 to our Financial Statements).

The effective income tax expense for the three and six months ended June 30, 2018 differed from tax at the U.S. statutory rate primarily due to $16.1 million and $17.8 million of nondeductible changes in the fair value of the customer warrant liability, respectively (see Note 4 to our Financial Statements).

9. Financial Instruments

Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (exit price). Inputs used to measure fair value are classified in the following hierarchy:

Level 1 Unadjusted quoted prices in active markets for identical assets or liabilities;

Level 2 Other inputs that are observable directly or indirectly, such as quoted prices in active markets for similar assets or liabilities, or inactive quoted prices for identical assets or liabilities in inactive markets;

Level 3 Unobservable inputs reflecting assumptions about the inputs used in pricing the asset or liability.

We endeavor to utilize the best available information to measure fair value.

The carrying value of Cash and cash equivalents, Short-term investments and Restricted cash is based on cost, which approximates fair value.

Long-term investments consist of debt securities, maturing within five years, for which we have both the ability and the intent to hold until maturity.  These investments are classified as held-to-maturity and reported at amortized cost.  The fair value of our Long-term investments is based on a discounted cash flow analysis using the contractual cash flows of the investments and a discount rate derived from unadjusted quoted interest rates for debt securities of comparable risk.  Such debt securities represent investments in Pass-Through Trust Certificates related to enhanced equipment trust certificates (“EETCs”) issued by Atlas in 1998 and 1999.

Term loans and notes consist of term loans, notes guaranteed by the Export-Import Bank of the United States (“Ex-Im Bank”), the Revolver and EETCs. The fair values of these debt instruments are based on a discounted cash flow analysis using current borrowing rates for instruments with similar terms.

The fair value of our Convertible Notes is based on unadjusted quoted market prices for these securities.

The fair value of a customer warrant liability and certain long-term performance-based restricted shares are based on a Monte Carlo simulation which requires inputs such as our common stock price, the warrant strike price, estimated common stock price volatility, and risk-free interest rate, among others.

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The following table summarizes the carrying value, estimated fair value and classification of our financial instruments as of:

	June 30, 2019
	Carrying Value		Fair Value		Level 1		Level 2		Level 3
Assets
Cash and cash equivalents	$	110,665	$	110,665	$	110,665	$	-	$	-
Short-term investments		7,153		7,153		-		-		7,153
Restricted cash		10,093		10,093		10,093		-		-
	$	127,911	$	127,911	$	120,758	$	-	$	7,153
Liabilities
Term loans and notes	$	1,913,989	$	2,022,448	$	-	$	-	$	2,022,448
Revolver		50,000		50,408		-		-		50,408
Convertible notes (1)		429,925		512,942		512,942		-		-
Customer warrant		103,275		103,275		-		103,275		-
	$	2,497,189	$	2,689,073	$	512,942	$	103,275	$	2,072,856

	December 31, 2018
	Carrying Value		Fair Value		Level 1		Level 2		Level 3
Assets
Cash and cash equivalents	$	221,501	$	221,501	$	221,501	$	-	$	-
Short-term investments		15,624		15,624		-		-		15,624
Restricted cash		11,240		11,240		11,240		-		-
Long-term investments and accrued interest		635		1,138		-		-		1,138
	$	249,000	$	249,503	$	232,741	$	-	$	16,762
Liabilities
Term loans and notes	$	2,048,972	$	1,976,373	$	-	$	-	$	1,976,373
Convertible notes (1)		420,868		490,070		490,070		-		-
Customer warrant		99,000		99,000		-		99,000		-
	$	2,568,840	$	2,565,443	$	490,070	$	99,000	$	1,976,373

(1) Carrying value is net of debt discounts and debt issuance costs (see Note 6 to our Financial Statements).

Gross unrealized gains on our long-term investments and accrued interest were $0.5 million at December 31, 2018.

10. Segment Reporting

Our business is organized into three operating segments based on our service offerings: ACMI, Charter and Dry Leasing.  All segments are directly or indirectly engaged in the business of air transportation services but have different commercial and economic characteristics.  Each operating segment is separately reviewed by our chief operating decision maker to assess operating results and make resource allocation decisions.  We do not aggregate our operating segments and, therefore, our operating segments are our reportable segments.

We use an economic performance metric (“Direct Contribution”) that shows the profitability of each segment after allocation of direct operating and ownership costs.  Direct Contribution represents Income (loss) from continuing operations before income taxes excluding the following: Special charge, Transaction-related expenses, nonrecurring items, Losses (gains) on the disposal of aircraft, Losses on early extinguishment of debt, Unrealized losses (gains) on financial instruments, Gains on investments and Unallocated income and expenses, net.  Direct operating and ownership costs include crew costs, maintenance, fuel, ground operations, sales costs, aircraft rent, interest expense on the portion of debt used for financing aircraft, interest income on debt securities and aircraft depreciation.  Unallocated income and expenses, net include corporate overhead, nonaircraft depreciation, noncash expenses and income, interest expense on the portion of debt used for general corporate purposes, interest income on nondebt securities, capitalized interest, foreign exchange gains and losses, other revenue and other non-operating costs, including certain contract start-up costs.

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The following table sets forth Operating Revenue and Direct Contribution for our reportable segments reconciled to Operating Income and Income (loss) from continuing operations before income taxes:

	For the Three Months Ended						For the Six Months Ended
	June 30, 2019			June 30, 2018			June 30, 2019			June 30, 2018
Operating Revenue:
ACMI	$	307,278		$	277,795		$	613,845		$	544,175
Charter		315,679			346,778			620,793			631,975
Dry Leasing		43,535			39,958			113,481			76,350
Customer incentive asset amortization		(6,936	)		(3,290	)		(13,222	)		(5,886	)
Other		4,362			4,904			8,704			9,545
Total Operating Revenue	$	663,918		$	666,145		$	1,343,601		$	1,256,159

Direct Contribution:
ACMI	$	40,640		$	52,707		$	80,647		$	93,579
Charter		14,084			51,090			43,217			85,368
Dry Leasing		11,091			12,191			46,618			23,550
Total Direct Contribution for Reportable Segments		65,815			115,988			170,482			202,497
Unallocated income and expenses, net		(81,927	)		(64,480	)		(162,064	)		(129,543	)
Loss on early extinguishment of debt		-			-			(245	)		-
Unrealized gain (loss) on financial instruments		42,300			(50,031	)		(4,275	)		(57,771	)
Special charge		(3,269	)		(9,374	)		(3,269	)		(9,374	)
Transaction-related expenses		(734	)		(240	)		(3,261	)		(510	)
Income (loss) from continuing operations before income taxes		22,185			(8,137	)		(2,632	)		5,299
Add back (subtract):
Interest income		(1,278	)		(1,388	)		(3,322	)		(3,112	)
Interest expense		30,045			29,182			60,398			56,524
Capitalized interest		(627	)		(1,465	)		(1,090	)		(3,215	)
Loss on early extinguishment of debt		-			-			245			-
Unrealized (gain) loss on financial instruments		(42,300	)		50,031			4,275			57,771
Other (income) expense, net		945			(7,277	)		(2,030	)		(11,752	)
Operating Income	$	8,970		$	60,946		$	55,844		$	101,515

The following table disaggregates our Charter segment revenue by customer and service type:

	For the Three Months Ended
	June 30, 2019							June 30, 2018
		Cargo		Passenger		Total			Cargo		Passenger		Total
Commercial customers		$	133,178	$	3,054	$	136,232		$	151,578	$	544	$	152,122
AMC			92,017		87,430		179,447			104,448		90,208		194,656
Total Charter Revenue		$	225,195	$	90,484	$	315,679		$	256,026	$	90,752	$	346,778
	For the Six Months Ended
	June 30, 2019							June 30, 2018
		Cargo		Passenger		Total			Cargo		Passenger		Total
Commercial customers		$	282,082	$	10,661	$	292,743		$	282,751	$	2,590	$	285,341
AMC			149,463		178,587		328,050			178,876		167,758		346,634
Total Charter Revenue		$	431,545	$	189,248	$	620,793		$	461,627	$	170,348	$	631,975

Given the nature of our business and international flying, geographic information for revenue, long-lived assets and total assets is not presented because it is impracticable to do so.

We are exposed to a concentration of revenue from the U.S. Military Air Mobility Command (“AMC”), Polar and DHL (see above and Note 3 to our Financial Statements for further discussion regarding Polar).  No other customer accounted for more than 10.0% of our Total Operating Revenue.  Revenue from DHL was $87.4 million for the three months ended June 30, 2019 and $84.8 million for the three months ended June 30, 2018. Revenue from DHL was $177.1 million for the six months ended June 30, 2019 and $151.8 million for the six months ended June 30, 2018. We have not experienced any credit issues with these customers.

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11. Labor and Legal Proceedings

Labor

Pilots of Atlas and Southern Air, and flight dispatchers of Atlas and Polar are represented by the International Brotherhood of Teamsters (the “IBT”).  We have a five-year collective bargaining agreement (“CBA”) with our Atlas pilots, which became amendable in September 2016 and a four-year CBA with the Southern Air pilots, which became amendable in November 2016. We also have a five-year CBA with our Atlas and Polar dispatchers, which was extended in April 2017 for an additional four years, making the CBA amendable in November 2021.

After we completed the acquisition of Southern Air in April 2016, we informed the IBT of our intention to pursue (and we have been pursuing) a complete operational merger of Atlas and Southern Air.  Pursuant to the merger provisions in both the Atlas and Southern Air CBAs, joint negotiations for a single CBA for Atlas and Southern Air should commence promptly.  Further, once a seniority list is presented to us by the union, it triggers an agreed-upon timeframe to negotiate a new joint CBA with any unresolved issues submitted to binding arbitration.  After the merger process began, the IBT filed an application for mediation with the National Mediation Board (“NMB”) on behalf of the Atlas pilots, and subsequently the IBT filed a similar application on behalf of Southern Air pilots.  We have opposed both mediation applications as they are not in accordance with the merger provisions in the parties’ existing CBAs.  The Atlas and Southern Air CBAs have a defined and streamlined process for negotiating a joint CBA when a merger occurs, as in the case with the Atlas and Southern Air merger.  The NMB conducted a premediation investigation on the IBT’s Atlas application in June 2016, which is currently pending (along with the IBT’s Southern Air application).  Due to the IBT’s refusal to adhere to the merger provisions of the respective CBAs, in February 2017, the Company filed a lawsuit against the IBT to compel arbitration on the issue of whether the merger provisions in Atlas and Southern Air's CBAs apply to the bargaining process.  On March 13, 2018, the Southern District Court of New York (“NY District Court”) granted the Company’s motion to compel arbitration on this issue.  The IBT appealed the NY District Court’s decision, which is currently pending.  

The Company and the IBT conducted the Atlas and Southern Air arbitrations for this issue in October 2018.  On June 12, 2019, Southern Air prevailed in its management grievance arbitration against the IBT. The arbitrator’s decision ordered the IBT to promptly proceed with contractually required negotiations for a new Joint CBA (“JCBA”) in connection with Atlas and Southern Air’s merger. The Company expects to receive the Atlas arbitration decision in the third quarter of 2019. The Company and the IBT continue to move the process forward and bargain in good faith for a new JCBA, pursuant to an interim framework agreement until the Atlas arbitration decision is issued.

In August 2018, the Southern Air pilots ratified an agreement between Southern Air and the IBT for interim enhancements to the Southern Air pilots’ CBA. The agreement enhances the wages and work rules of the Southern Air pilots and provides similar terms and conditions of employment to those provided to Atlas pilots in the Atlas CBA.  The Southern Air pilot agreement became effective in September 2018.

In late November 2017, the U.S. District Court for the District of Columbia (“DC District Court”) granted the Company’s request to issue a preliminary injunction to stop an illegal work slowdown and require the IBT to meet its obligations under the Railway Labor Act. Specifically, the DC District Court ordered the IBT to stop “authorizing, encouraging, permitting, calling, engaging in, or continuing” any illegal pilot slowdown activities, which were intended to gain leverage in pilot contract negotiations with the Company.  In addition, the Court ordered the IBT to take affirmative action to prevent and to refrain from continuing any form of interference with the Company’s operations or any other concerted refusal to perform normal pilot operations consistent with its status quo obligations under the Railway Labor Act.  In December 2017, the IBT appealed the District Court’s decision to the U.S. Court of Appeals for the District of Columbia Circuit (“Court of Appeals”).  On July 5, 2019, the Court of Appeals, in a unanimous three judge panel, affirmed the DC District Court’s ruling and denied the IBT’s appeal. Therefore, the preliminary injunction remains in full force and effect.

We are subject to risks of work interruption or stoppage as permitted by the Railway Labor Act and may incur additional administrative expenses associated with union representation of our employees.

Matters Related to Alleged Pricing Practices

In the Netherlands, Stichting Cartel Compensation, successor in interest to claims of various shippers, has filed suit in the district court in Amsterdam against British Airways, KLM, Martinair, Air France, Lufthansa and Singapore Airlines seeking recovery for damages purportedly arising from allegedly unlawful pricing practices of such defendants.  In response, British Airways, KLM, Martinair, Air France and Lufthansa filed third-party indemnification lawsuits against Polar Air Cargo, LLC (“Old Polar”), a consolidated subsidiary of the Company, and Polar, seeking indemnification in the event the defendants are found to be liable in the main proceedings.  Another defendant, Thai Airways, filed a similar indemnification claim.  Activities in the case have focused on various procedural issues, some of which are awaiting court determination.  The Netherlands proceedings are likely to be affected by a

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decision readopted by the European Commission in March 2017, finding EU competition law violations by British Airways, KLM, Martinair, Air France and Lufthansa, among others, but not Old Polar or Polar.  We are unable to reasonably predict the outcome of the litigation.  If the Company, Old Polar or Polar were to incur an unfavorable outcome, such outcome may have a material adverse impact on our business, financial condition, results of operations or cash flows.  We are unable to reasonably estimate a range of possible loss for this matter at this time.

Brazilian Customs Claim

Old Polar was cited for two alleged customs violations in Sao Paulo, Brazil, relating to shipments of goods dating back to 1999 and 2000.  Each claim asserts that goods listed on the flight manifest of two separate Old Polar scheduled service flights were not on board the aircraft upon arrival and therefore were improperly brought into Brazil.  The two claims, which also seek unpaid customs duties, taxes and penalties from the date of the alleged infraction, are approximately $5.3 million in aggregate based on June 30, 2019 exchange rates.

In both cases, we believe that the amounts claimed are substantially overstated due to a calculation error when considering the type and amount of goods allegedly missing, among other things.  In the pending claim for one of the cases, we have received an administrative decision dismissing the claim in its entirety, which remains subject to a mandatory appeal by the Brazil customs authorities.  In the other case, we received an administrative decision in favor of the Brazil customs authorities and we are in the process of appealing this decision to the Brazil courts.  As required to defend such claims, we have made deposits pending resolution of these matters.  The balance was $4.2 million as of June 30, 2019 and $4.1 million as of December 31, 2018, and is included in Deferred costs and other assets.

We are currently defending these and other Brazilian customs claims and the ultimate disposition of these claims, either individually or in the aggregate, is not expected to materially affect our financial condition, results of operations or cash flows.

Other

In addition to the matters described in this note, we have certain other contingencies incident to the ordinary course of business.  Unless disclosed otherwise, management does not expect that the ultimate disposition of such other contingencies or matters will materially affect our financial condition, results of operations or cash flows.

12. Earnings Per Share

Basic earnings per share (“EPS”) represents income (loss) divided by the weighted average number of common shares outstanding during the measurement period.  Diluted EPS represents income (loss) divided by the weighted average number of common shares outstanding during the measurement period while also giving effect to all potentially dilutive common shares that were outstanding during the period using the treasury stock method.  The calculations of basic and diluted EPS were as follows:

	For the Three Months Ended						For the Six Months Ended
Numerator:	June 30, 2019			June 30, 2018			June 30, 2019		June 30, 2018
Income (loss) from continuing operations, net of taxes	$	86,868		$	(21,123	)	$	57,158	$	(11,495	)
Less: Unrealized gain on financial instruments, net of tax		(43,379	)		-			-		-
Diluted income from continuing operations, net of tax	$	43,489		$	(21,123	)	$	57,158	$	(11,495	)
Denominator:
Basic EPS weighted average shares outstanding		25,851			25,565			25,794		25,501
Effect of dilutive warrant		1,089			-			-		-
Effect of dilutive restricted stock		13			-			127		-
Diluted EPS weighted average shares outstanding		26,953			25,565			25,921		25,501
Earnings (loss) per share from continuing operations:
Basic	$	3.36		$	(0.83	)	$	2.22	$	(0.45	)
Diluted	$	1.61		$	(0.83	)	$	2.21	$	(0.45	)
Loss per share from discontinued operations:
Basic	$	-		$	(0.00	)	$	-	$	(0.00	)
Diluted	$	-		$	(0.00	)	$	-	$	(0.00	)
Earnings (loss) per share:
Basic	$	3.36		$	(0.83	)	$	2.22	$	(0.45	)
Diluted	$	1.61		$	(0.83	)	$	2.21	$	(0.45	)

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Antidilutive shares related to warrants issued in connection with our Convertible Notes that were out of the money and excluded were 7.8 million for the three and six months ended June 30, 2019 and 3.0 million for the three and six months ended June 30, 2018. Antidilutive shares related to warrants issued to a customer and restricted share units that were excluded from the calculation of diluted EPS due to losses incurred were 3.3 million for the three months ended June 30, 2018 and 2.7 million for the six months ended June 30, 2018.  Diluted shares reflect the potential dilution that could occur from restricted shares using the treasury stock method.  The calculation of EPS does not include restricted share units and warrants issued to a customer in which performance or market conditions were not satisfied of 10.6 million for the three and six months ended June 30, 2019 and 5.8 million for the three and six months ended June 30, 2018.

13. Accumulated Other Comprehensive Income (Loss)

The following table summarizes the components of Accumulated other comprehensive income (loss):

	Interest Rate			Foreign Currency
	Derivatives			Translation		Total
Balance as of December 31, 2017	$	(4,002	)	$	9	$	(3,993	)
Reclassification to interest expense		750			-		750
Tax effect		(177	)		-		(177	)
Reclassification of taxes		(970	)		-		(970	)
Balance as of June 30, 2018	$	(4,399	)	$	9	$	(4,390	)
Balance as of December 31, 2018	$	(3,841	)	$	9	$	(3,832	)
Reclassification to interest expense		681			-		681
Tax effect		(161	)		-		(161	)
Balance as of June 30, 2019	$	(3,321	)	$	9	$	(3,312	)

Interest Rate Derivatives

As of June 30, 2019, there was $4.3 million of unamortized net realized loss before taxes remaining in Accumulated other comprehensive income (loss) related to terminated forward-starting interest rate swaps, which had been designated as cash flow hedges to effectively fix the interest rates on two 747-8F financings in 2011 and three 777-200LRF financings in 2014.  The net loss is amortized and reclassified into Interest expense over the remaining life of the related debt.  Net realized losses reclassified into earnings were $0.3 million and $0.4 million for the three months ended June 30, 2019 and 2018, respectively. Net realized losses reclassified into earnings were $0.7 million and $0.8 million for the six months ended June 30, 2019 and 2018, respectively. Net realized losses expected to be reclassified into earnings within the next 12 months are $1.3 million as of June 30, 2019.

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ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following discussion and analysis should be read in conjunction with our Financial Statements appearing in this report and our audited consolidated financial statements and related notes included in our 2018 Annual Report on Form 10-K.

Background

Certain Terms - Glossary

The following represents terms and statistics specific to our business and industry. They are used by management to evaluate and measure operations, results, productivity and efficiency.

Block Hour	The time interval between when an aircraft departs the terminal until it arrives at the destination terminal.
C Check	“Heavy” airframe maintenance checks, which are more intensive in scope than Line Maintenance and are generally performed between 18 and 24 months depending on aircraft type.
D Check	“Heavy” airframe maintenance checks, which are the most extensive in scope and are generally performed every six and eight years depending on aircraft type.
Heavy Maintenance	Scheduled maintenance activities that are extensive in scope and are primarily based on time or usage intervals, which include, but are not limited to, C Checks, D Checks and engine overhauls.  In addition, unscheduled engine repairs involving the removal of the engine from the aircraft are considered to be Heavy Maintenance.
Line Maintenance	Maintenance events occurring during normal day-to-day operations.
Non-heavy Maintenance	Discrete maintenance activities for the overhaul and repair of specific aircraft components, including landing gear, auxiliary power units and engine thrust reversers.
Yield	The average amount a customer pays to fly one tonne of cargo one mile.

Business Overview

We are a leading global provider of outsourced aircraft and aviation operating services.  We operate the world’s largest fleet of 747 freighters and provide customers a broad array of 747, 777, 767, 757 and 737 aircraft for domestic, regional and international cargo and passenger operations.  We provide unique value to our customers by giving them access to highly reliable modern production freighters that deliver the lowest unit cost in the marketplace combined with outsourced aircraft operating services that we believe lead the industry in terms of quality and global scale.  Our customers include express delivery providers, e-commerce retailers, airlines, freight forwarders, the U.S. military and charter brokers.  We provide global services with operations in Africa, Asia, Australia, Europe, the Middle East, North America and South America.

Our primary service offerings include the following:

• ACMI, whereby we provide outsourced cargo and passenger aircraft operating solutions, including the provision of an aircraft, crew, maintenance and insurance, while customers assume fuel, demand and price risk.  In addition, customers are generally responsible for landing, navigation and most other operational fees and costs;

• CMI, which is part of our ACMI business segment, whereby we provide outsourced cargo and passenger aircraft operating solutions, generally including the provision of crew, Line Maintenance and insurance, but not the aircraft.  Customers assume fuel, demand and price risk, and are responsible for providing the aircraft (which they may lease from us) and generally responsible for Heavy and Non-Heavy Maintenance, landing, navigation and most other operational fees and costs;

• Charter, whereby we provide cargo and passenger aircraft charter services to customers, including the AMC, brokers, freight forwarders, direct shippers, airlines, sports teams and fans, and private charter customers.  The customer generally pays a fixed charter fee that includes fuel, insurance, landing fees, navigation fees and most other operational fees and costs; and

• Dry Leasing, whereby we provide cargo and passenger aircraft and engine leasing solutions.  The customer operates, and is responsible for insuring and maintaining, the flight equipment.

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We look to achieve our growth plans and enhance shareholder value by:

• Delivering superior service quality to our valued customers;

• Focusing on securing attractive long-term customer contracts;

• Managing our fleet with a focus on modern, efficient aircraft;

• Driving significant ongoing productivity improvements;

• Selectively pursuing and evaluating future acquisitions and alliances; while

• Appropriately managing capital allocation and delivering value to shareholders.

See “Business Overview” and “Business Strategy” in our 2018 Annual Report on Form 10-K for additional information.

Business Developments

Charter results for the first half of 2019, compared with 2018, were negatively impacted by a decrease in commercial cargo volumes and Yields related to the impact of tariffs and global trade tensions, and a decrease in AMC cargo and passenger flying.

During the first half of 2019, both ACMI and Charter results were negatively impacted by labor-related service disruptions (See Note 11 to our Financial Statements).

Our ACMI results for the first half of 2019, compared with 2018, were positively impacted by increased flying from the following:

• Between August 2016 and November 2018, we began CMI flying 20 Boeing 767-300 freighter aircraft for Amazon that are Dry Leased from Titan.  During the first half of 2019, there were an average of 19.3 aircraft equivalents operating for Amazon compared to an average of 12.8 aircraft equivalents operating in 2018.  

• In September 2018, we began flying a second 747-400 freighter for Asiana Cargo on transpacific routes.  

• In May 2018, we began flying a second 747-400 freighter for DHL Global Forwarding on routes between the United States, Europe, and Asia.  

• In February 2018, we signed long-term CMI and Dry Lease contracts with DHL for two 777-200 freighter aircraft.  The first of the two aircraft was previously in CMI service with us and the second aircraft began CMI and Dry Lease service in July of 2018.

• In July 2018, we began ACMI flying a 747-400 freighter for Industria de Diseño Textil, S.A. (“Inditex”) on routes between the United States, Europe, and Asia.

• In October 2018, we began flying a 747-400 freighter for SF Express on transpacific routes.

• In January 2019, we entered into an agreement to operate three incremental 747-400 freighters for Nippon Cargo Airlines on transpacific routes.  One aircraft entered service in April 2019 and the other two are expected to enter service during the third quarter of 2019.

• In March 2019, we entered into agreements with Amazon, which include CMI operation of five 737-800 freighter aircraft in 2019 and up to 15 additional aircraft by May 2021.  The first three aircraft entered service during the second quarter of 2019 and the next two are expected to enter service during the second half of 2019.

• In June 2019, we entered into a CMI agreement with DHL to operate two incremental 777-200 freighter aircraft on key global routes, both of which entered service near the end of the second quarter of 2019.

• In June 2019, we began flying a third 747-400 freighter for Asiana Cargo on transpacific routes following its return from DHL.

In February 2018, we acquired a 777-200 freighter aircraft and Dry Leased it to DHL on a long-term basis, as described above.  We completed the acquisition of a second 777-200 freighter aircraft and placed it into service with DHL in July 2018.  As described above, during the first half of 2019, there were an average of 19.3 aircraft equivalents Dry Leased to Amazon compared to an average of 12.8 aircraft equivalents in 2018.  

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Results of Operations

The following discussion should be read in conjunction with our Financial Statements and other financial information appearing and referred to elsewhere in this report.

Three Months Ended June 30, 2019 and 2018

Operating Statistics

The following tables compare our Segment Operating Fleet (average aircraft equivalents during the period) and total Block Hours operated for the three months ended June 30:

Segment Operating Fleet*	2019			2018			Inc/(Dec)
ACMI
747-8F Cargo		8.2			9.0			(0.8	)
747-400 Cargo		18.4			16.2			2.2
747-400 Dreamlifter		3.6			3.1			0.5
777-200 Cargo		6.4			5.0			1.4
767-300 Cargo		25.0			19.3			5.7
767-200 Cargo		9.0			9.0			-
767-200 Passenger		1.0			1.0			-
737-800 Cargo		1.8			-			1.8
737-400 Cargo		5.0			5.0			-
Total		78.4			67.6			10.8
Charter
747-8F Cargo		1.6			1.0			0.6
747-400 Cargo		15.2			12.6			2.6
747-400 Passenger		4.0			2.0			2.0
767-300 Cargo		-			0.5			(0.5	)
767-300 Passenger		4.9			4.0			0.9
Total		25.7			20.1			5.6
Dry Leasing
777-200 Cargo		7.0			7.0			-
767-300 Cargo		21.0			15.6			5.4
757-200 Cargo		1.0			1.0			-
737-300 Cargo		1.0			1.0			-
737-800 Passenger		1.0			1.0			-
Total		31.0			25.6			5.4
Less: Aircraft Dry Leased to CMI customers		(23.0	)		(16.6	)		(6.4	)
Total Operating Average Aircraft Equivalents		112.1			96.7			15.4

* ACMI average fleet excludes spare aircraft provided by CMI customers and Dry Leasing average fleet excludes aircraft awaiting placement.

Block Hours	2019		2018		Inc/(Dec)		% Change
Total Block Hours**		80,282		72,660		7,622		10.5	%

** Includes ACMI, Charter and other Block Hours.

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Operating Revenue

The following table compares our Operating Revenue for the three months ended June 30 (in thousands):

	2019			2018			Inc/(Dec)			% Change
Operating Revenue
ACMI	$	307,278		$	277,795		$	29,483			10.6	%
Charter		315,679			346,778			(31,099	)		(9.0	)%
Dry Leasing		43,535			39,958			3,577			9.0	%
Customer incentive asset amortization		(6,936	)		(3,290	)		3,646		NM
Other		4,362			4,904			(542	)		(11.1	)%
Total Operating Revenue	$	663,918		$	666,145

NM represents year-over-year changes that are not meaningful.

ACMI

	2019		2018		Inc/(Dec)			% Change
ACMI Block Hours		61,942		53,230		8,712			16.4	%
ACMI Revenue Per Block Hour	$	4,961	$	5,219	$	(258	)		(4.9	)%

ACMI revenue increased $29.5 million, or 10.6%, primarily due to increased flying, partially offset by a decrease in Revenue per Block Hour.  The increase in Block Hours was primarily driven by increased 767 and 737 flying, the start-up of 747-400 flying for new customers and incremental 777-200 flying.  Revenue per Block Hour decreased primarily due to increased smaller-gauge 767 and 737 CMI flying.  In addition, ACMI revenue was negatively impacted by labor-related service disruptions.  

Charter

	2019		2018		Inc/(Dec)			% Change
Charter Block Hours:
Cargo		12,888		13,887		(999	)		(7.2	)%
Passenger		4,773		5,094		(321	)		(6.3	)%
Total		17,661		18,981		(1,320	)		(7.0	)%
Charter Revenue Per Block Hour:
Cargo	$	17,473	$	18,436	$	(963	)		(5.2	%)
Passenger	$	18,957	$	17,815	$	1,142			6.4	%
Charter	$	17,874	$	18,270	$	(396	)		(2.2	%)

Charter revenue decreased $31.1 million, or 9.0%, primarily due to decreased flying and a decrease in Revenue per Block Hour. The decrease in Charter Block Hours was primarily driven by decreased cargo and passenger demand from the AMC and lower cargo demand from commercial customers.  Revenue per Block Hour decreased primarily due to lower commercial cargo Yields (excluding fuel), partially offset by an increase in rates for the AMC.  The lower commercial cargo demand and Yields reflected the impact of tariffs and global trade tensions.  In addition, Charter revenue was negatively impacted by labor-related service disruptions.

Dry Leasing

Dry Leasing revenue increased $3.6 million, or 9.0%, primarily due to the placement of 767-300 converted freighter aircraft throughout 2018, as well as one 777-200 freighter aircraft in July 2018, partially offset by the scheduled return of a 777-200 freighter aircraft in March 2019 that is awaiting placement with a customer.

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Operating Expenses

The following table compares our Operating Expenses for the three months ended June 30 (in thousands):

	2019		2018		Inc/(Dec)			% Change
Operating Expenses
Salaries, wages and benefits	$	141,450	$	129,176	$	12,274			9.5	%
Aircraft fuel		122,158		129,706		(7,548	)		(5.8	)%
Maintenance, materials and repairs		113,471		88,236		25,235			28.6	%
Depreciation and amortization		63,689		50,834		12,855			25.3	%
Travel		46,374		42,358		4,016			9.5	%
Aircraft rent		40,335		40,281		54			0.1	%
Navigation fees, landing fees and other rent		37,982		37,698		284			0.8	%
Passenger and ground handling services		30,525		30,202		323			1.1	%
Special charge		3,269		9,374		(6,105	)	NM
Transaction-related expenses		734		240		494		NM
Other		54,961		47,094		7,867			16.7	%
Total Operating Expenses	$	654,948	$	605,199

Salaries, wages and benefits increased $12.3 million, or 9.5%, primarily due to increased flying and higher crew costs, including enhanced wages and work rules resulting from our interim agreement with the Southern Air pilots (see Note 11 to our Financial Statements).

Aircraft fuel decreased $7.5 million, or 5.8%, primarily due to a decrease in consumption related to decreased Charter flying and a decrease in the average fuel cost per gallon.  We do not incur fuel expense in our ACMI or Dry Leasing businesses as the cost of fuel is borne by the customer.  Average fuel cost per gallon and fuel consumption for the three months ended June 30 were:

	2019		2018		Inc/(Dec)			% Change
Average fuel cost per gallon	$	2.37	$	2.42	$	(0.05	)		(2.1	)%
Fuel gallons consumed (000s)		51,596		53,508		(1,912	)		(3.6	)%

Maintenance, materials and repairs increased by $25.2 million, or 28.6%, primarily reflecting $15.9 million of increased Heavy Maintenance expense, $7.1 million of increased Line Maintenance expense due to increased flying and additional repairs performed, and $2.3 million of increased Non-heavy Maintenance expense.  Heavy Maintenance expense on 747-400 aircraft increased $17.2 million primarily due to an increase in the number of C Checks, engine overhauls and additional repairs performed.  Heavy Maintenance expense on 747-8F aircraft decreased $2.6 million primarily due to a decrease in the number of C Checks, partially offset by an increase in the number of D Checks.  The higher Line Maintenance primarily reflected increases of $5.6 million for 767 aircraft and $2.9 million for 747-400 aircraft.  Non-heavy Maintenance reflected increases of $1.8 million for 747-400 aircraft.  Heavy airframe maintenance checks and engine overhauls impacting Maintenance, materials and repairs for the three months ended June 30 were:

Heavy Maintenance Events	2019		2018		Inc/(Dec)
747-8F C Checks		-		3		(3	)
747-400 C Checks		6		3		3
767 C Checks		1		1		-
747-8F D Checks		1		-		1
747-400 D Checks		1		1		-
CF6-80 engine overhauls		4		3		1

Depreciation and amortization increased $12.9 million, or 25.3%, primarily due to additional aircraft that began operating in 2018, an increase in the scrapping of rotable parts and an increase in the amortization of deferred maintenance costs related to 747-8F engine overhauls (see Note 2 to our Financial Statements).

Travel increased $4.0 million, or 9.5%, primarily due to increased flying.

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Special charge in 2019 primarily represents a $2.5 million impairment loss on an engine trade in as part of our engine acquisition program. Special charge in 2018 represents a $9.4 million impairment loss on engines held for sale.  We may sell additional flight equipment, which could result in additional charges in future periods.

Other increased $7.9 million, or 16.7%, primarily due to start-up and other costs to meet fleet growth initiatives.

Non-operating Expenses (Income)

The following table compares our Non-operating Expenses (Income) for the three months ended June 30 (in thousands):

	2019			2018			Inc/(Dec)			% Change
Non-operating Expenses (Income)
Interest income	$	(1,278	)	$	(1,388	)	$	(110	)		(7.9	)%
Interest expense		30,045			29,182			863			3.0	%
Capitalized interest		(627	)		(1,465	)		(838	)		(57.2	)%
Unrealized (gain) loss on financial instruments		(42,300	)		50,031			(92,331	)		(184.5	)%
Other (income) expense, net		945			(7,277	)		(8,222	)		(113.0	)%

Unrealized (gain) loss on financial instruments represents the change in fair value of a customer warrant liability (see Note 4 to our Financial Statements) primarily due to changes in our common stock price.

Other (income) expense, net decreased $8.2 million, or 113.0% primarily due to a refund of $8.6 million in 2018 for aircraft rent paid in previous years.

Income taxes.  The income tax benefit for the three months ended June 30, 2019 differed from tax at the U.S. statutory rate due to $59.8 million of tax benefits related to the favorable completion of the Internal Revenue Service’s examination of our 2015 income tax return, and to a lesser extent, $9.3 million of nontaxable changes in the fair value of the customer warrant liability.  The income tax expense for the three months ended June 30, 2018 differed from tax at the U.S. statutory rate primarily due to $16.1 million of nondeductible changes in the fair value of the customer warrant liability (see Note 4 to our Financial Statements).  

Segments

The following table compares the Direct Contribution for our reportable segments for the three months ended June 30 (see Note 10 to our Financial Statements for the reconciliation to Operating income) (in thousands):

	2019		2018		Inc/(Dec)			% Change
Direct Contribution:
ACMI	$	40,640	$	52,707	$	(12,067	)		(22.9	)%
Charter		14,084		51,090		(37,006	)		(72.4	)%
Dry Leasing		11,091		12,191		(1,100	)		(9.0	)%
Total Direct Contribution	$	65,815	$	115,988	$	(50,173	)		(43.3	)%
Unallocated income and expenses, net	$	81,927	$	64,480	$	17,447			27.1	%

ACMI Segment

ACMI Direct Contribution decreased $12.1 million, or 22.9%, primarily due to higher crew costs, including enhanced wages and work rules resulting from our interim agreement with the Southern Air pilots (see Note 11 to our Financial Statements), additional Heavy Maintenance expense and increased amortization of deferred maintenance costs.  In addition, ACMI Direct Contribution was impacted by start-up costs for customer growth initiatives and by labor-related service disruptions.  Partially offsetting these items was an increase in contribution from additional flying.  

Charter Segment

Charter Direct Contribution decreased $37.0 million, or 72.4%, primarily due to a decrease in commercial cargo Yields and volumes related to the impact of tariffs and global trade tensions, a decrease in AMC cargo and passenger flying, and additional Heavy Maintenance expense. In addition, Charter Direct Contribution was negatively impacted by labor-related service disruptions.

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Dry Leasing Segment

Dry Leasing Direct Contribution decreased $1.1 million, or 9.0%, primarily due to the scheduled return of a 777-200 freighter aircraft in March 2019, partially offset by the placement of additional aircraft.

Unallocated income and expenses, net

Unallocated income and expenses, net increased $17.4 million, or 27.1%, primarily due to a refund of aircraft rent paid in previous years recognized during the second quarter of 2018, fleet growth initiatives and increased amortization of a customer incentive asset.

Six Months Ended June 30, 2019 and 2018

Operating Statistics

The following tables compare our Segment Operating Fleet (average aircraft equivalents during the period) and total Block Hours operated for the six months ended June 30:

Segment Operating Fleet*	2019			2018			Inc/(Dec)
ACMI
747-8F Cargo		8.6			9.0			(0.4	)
747-400 Cargo		18.0			16.0			2.0
747-400 Dreamlifter		3.6			3.1			0.5
777-200 Cargo		6.2			5.0			1.2
767-300 Cargo		25.3			18.3			7.0
767-200 Cargo		9.0			9.0			-
767-200 Passenger		1.0			1.0			-
737-800 Cargo		0.9			-			0.9
737-400 Cargo		5.0			5.0			-
747-400 Passenger		-			0.5			(0.5	)
Total		77.6			66.9			10.7
Charter
747-8F Cargo		1.3			1.0			0.3
747-400 Cargo		15.1			12.2			2.9
747-400 Passenger		4.0			2.0			2.0
767-300 Cargo		-			0.4			(0.4	)
767-300 Passenger		4.9			4.0			0.9
Total		25.3			19.6			5.7
Dry Leasing
777-200 Cargo		7.5			6.7			0.8
767-300 Cargo		21.3			14.8			6.5
757-200 Cargo		1.0			1.0			-
737-300 Cargo		1.0			1.0			-
737-800 Passenger		1.0			1.0			-
Total		31.8			24.5			7.3
Less: Aircraft Dry Leased to CMI customers		(23.3	)		(15.5	)		(7.8	)
Total Operating Average Aircraft Equivalents		111.4			95.5			15.9

* ACMI average fleet excludes spare aircraft provided by CMI customers and Dry Leasing average fleet excludes aircraft awaiting placement.

Block Hours	2019		2018		Inc/(Dec)		% Change
Total Block Hours**		157,342		139,155		18,187		13.1	%

** Includes ACMI, Charter and other Block Hours.

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Operating Revenue

The following table compares our Operating Revenue for the six months ended June 30 (in thousands):

	2019			2018			Inc/(Dec)			% Change
Operating Revenue
ACMI	$	613,845		$	544,175		$	69,670			12.8	%
Charter		620,793			631,975			(11,182	)		(1.8	)%
Dry Leasing		113,481			76,350			37,131			48.6	%
Customer incentive asset amortization		(13,222	)		(5,886	)		7,336		NM
Other		8,704			9,545			(841	)		(8.8	)%
Total Operating Revenue	$	1,343,601		$	1,256,159

ACMI

	2019		2018		Inc/(Dec)			% Change
ACMI Block Hours		121,722		103,092		18,630			18.1	%
ACMI Revenue Per Block Hour	$	5,043	$	5,279	$	(236	)		(4.5	)%

ACMI revenue increased $69.7 million, or 12.8%, primarily due to increased flying, partially offset by a decrease in Revenue per Block Hour.  The increase in Block Hours was primarily driven by increased 767 and 737 flying, the start-up of 747-400 flying for new customers and incremental 777-200 flying.  Revenue per Block Hour decreased primarily due to increased smaller-gauge 767 and 737 CMI flying.  In addition, ACMI revenue was negatively impacted by labor-related service disruptions.

Charter

	2019		2018		Inc/(Dec)			% Change
Charter Block Hours:
Cargo		24,367		25,278		(911	)		(3.6	)%
Passenger		9,954		9,763		191			2.0	%
Total		34,321		35,041		(720	)		(2.1	)%
Charter Revenue Per Block Hour:
Cargo	$	17,710	$	18,262	$	(552	)		(3.0	%)
Passenger	$	19,012	$	17,448	$	1,564			9.0	%
Charter	$	18,088	$	18,035	$	53			0.3	%

Charter revenue decreased $11.2 million, or 1.8%, primarily due to a decrease in flying, partially offset by an increase in Revenue per Block Hour.  The decrease in Charter Block Hours was primarily driven by decreased cargo demand from the AMC during the second quarter of 2019 and the late cancellation of certain cargo flights by the AMC during the first quarter of 2019. Partially offsetting these decreases was an increase in cargo flying for commercial customers and passenger flying for the AMC during the first half of 2019. Revenue per Block Hour increased primarily due to higher Yields (excluding fuel) on passenger flying, primarily driven by an increase in rates for the AMC and the expansion of our flying for sports teams and other VIP charter customers.  Partially offsetting these increases was a decrease in Yields for commercial customers reflecting the impact of tariffs and global trade tensions. In addition, Charter revenue was negatively impacted by labor-related service disruptions.

Dry Leasing

Dry Leasing revenue increased $37.1 million, or 48.6%, primarily due to $22.3 million of revenue from maintenance payments related to the scheduled return of a 777-200 freighter aircraft in March 2019 and the placement of incremental aircraft.  The additional aircraft included the placement of 767-300 converted freighter aircraft throughout 2018, as well as one 777-200 freighter aircraft in February 2018 and a second 777-200 freighter aircraft in July 2018.

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Operating Expenses

The following table compares our Operating Expenses for the six months ended June 30 (in thousands):

	2019		2018		Inc/(Dec)			% Change
Operating Expenses
Salaries, wages and benefits	$	286,924	$	254,258	$	32,666			12.8	%
Aircraft fuel		228,479		226,009		2,470			1.1	%
Maintenance, materials and repairs		217,091		173,115		43,976			25.4	%
Depreciation and amortization		128,170		100,464		27,706			27.6	%
Travel		91,403		82,205		9,198			11.2	%
Aircraft rent		82,223		79,805		2,418			3.0	%
Navigation fees, landing fees and other rent		78,198		73,295		4,903			6.7	%
Passenger and ground handling services		62,685		58,264		4,421			7.6	%
Special charge		3,269		9,374		(6,105	)	NM
Transaction-related expenses		3,261		510		2,751		NM
Other		106,054		97,345		8,709			8.9	%
Total Operating Expenses	$	1,287,757	$	1,154,644

Salaries, wages and benefits increased $32.7 million, or 12.8%, primarily due to increased flying, higher crew costs, including enhanced wages and work rules resulting from our interim agreement with the Southern Air pilots (see Note 11 to our Financial Statements) and fleet growth initiatives.

Aircraft fuel increased $2.5 million, or 1.1%, due to an increase in consumption related to increased flying.  We do not incur fuel expense in our ACMI or Dry Leasing businesses as the cost of fuel is borne by the customer.  Average fuel cost per gallon and fuel consumption for the six months ended June 30 were:

	2019		2018		Inc/(Dec)		% Change
Average fuel cost per gallon	$	2.30	$	2.30	$	-	-
Fuel gallons consumed (000s)		99,468		98,458		1,010		1.0	%

Maintenance, materials and repairs increased by $44.0 million, or 25.4%, primarily reflecting $21.6 million of increased Line Maintenance expense due to increased flying and additional repairs performed, $14.8 million of increased Heavy Maintenance expense and $7.5 million of increased Non-heavy Maintenance expense.  The higher Line Maintenance primarily reflected increases of $12.8 million for 767 aircraft and $9.5 million for 747-400 aircraft, partially offset by a decrease of $1.2 million for 747-8F aircraft.  Heavy Maintenance expense on 747-400 aircraft increased $10.1 million primarily due to an increase in the number of C Checks and additional repairs performed, partially offset by a decrease in the number of D Checks.  Heavy Maintenance expense on 767 aircraft increased $3.9 million primarily due to an increase in the number of C Checks and additional repairs performed.  Heavy airframe maintenance checks and engine overhauls impacting Maintenance, materials and repairs for the six months ended June 30 were:

Heavy Maintenance Events	2019		2018		Inc/(Dec)
747-8F C Checks		2		3		(1	)
747-400 C Checks		11		7		4
767 C Checks		2		1		1
747-8F D Checks		1		-		1
747-400 D Checks		1		2		(1	)
CF6-80 engine overhauls		9		9		-

Depreciation and amortization increased $27.7 million, or 27.6%, primarily due to additional aircraft that began operating in 2018, an increase in the scrapping of rotable parts and an increase in the amortization of deferred maintenance costs related to 747-8F engine overhauls (see Note 2 to our Financial Statements).

Travel increased $9.2 million, or 11.2%, primarily due to increased flying.

Aircraft rent increased $2.4 million, or 3.0%, primarily due to additional operating leases for 747-400 freighter aircraft that began during the second half of 2018 to meet increased customer demand.

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Navigation fees, landing fees and other rent increased $4.9 million, or 6.7%, primarily due to increased flying, partially offset by a decrease in purchased capacity, which is a component of other rent.

Passenger and ground handling services increased $4.4 million, or 7.6%, primarily due to higher costs from flying to more expensive locations.

Special charge in 2019 primarily represents a $2.5 million impairment loss on an engine trade in as part of our engine acquisition program. Special charge in 2018 represents a $9.4 million impairment loss on engines held for sale.  We may sell additional flight equipment, which could result in additional charges in future periods.

Transaction-related expenses in 2019 primarily relate to professional fees for a customer transaction with warrants (see Note 4 to our Financial Statements).  Transaction-related expenses in 2018 were for the integration of Southern Air, which primarily included professional fees and integration costs.

Other increased $8.7 million, or 8.9%, primarily due to start-up and other costs to meet fleet growth initiatives.

Non-operating Expenses (Income)

The following table compares our Non-operating Expenses (Income) for the six months ended June 30 (in thousands):

	2019			2018			Inc/(Dec)			% Change
Non-operating (Income) Expenses
Interest income	$	(3,322	)	$	(3,112	)	$	210			6.7	%
Interest expense		60,398			56,524			3,874			6.9	%
Capitalized interest		(1,090	)		(3,215	)		(2,125	)		(66.1	)%
Loss on early extinguishment of debt		245			-			245		NM
Unrealized (gain) loss on financial instruments		4,275			57,771			(53,496	)		(92.6	)%
Other (income) expense, net		(2,030	)		(11,752	)		(9,722	)		(82.7	)%

Interest expense increased $3.9 million, or 6.9%, primarily due to the 2018 financing of 767-300 aircraft purchases and conversions and purchases of two 777-200 aircraft in 2018.

Unrealized (gain) loss on financial instruments represents the change in fair value of a customer warrant liability (see Note 4 to our Financial Statements) primarily due to changes in our common stock price.

Other (income) expense, net decreased primarily due to a refund of $12.4 million in 2018 for aircraft rent paid in previous years, partially offset by a net insurance recovery.

Income taxes.  The income tax benefit for the six months ended June 30, 2019 differed from tax at the U.S. statutory rate primarily due to $59.8 million of tax benefits related to the favorable completion of the Internal Revenue Service’s examination of our 2015 income tax return.  The income tax expense for the six months ended June 30, 2018 differed from tax at the U.S. statutory rate primarily due to $17.8 million of nondeductible changes in the fair value of the customer warrant liability (see Note 4 to our Financial Statements).

Segments

The following table compares the Direct Contribution for our reportable segments for the six months ended June 30 (see Note 11 to our Financial Statements for the reconciliation to Operating income) (in thousands):

	2019		2018		Inc/(Dec)			% Change
Direct Contribution:
ACMI	$	80,647	$	93,579	$	(12,932	)		(13.8	)%
Charter		43,217		85,368		(42,151	)		(49.4	)%
Dry Leasing		46,618		23,550		23,068			98.0	%
Total Direct Contribution	$	170,482	$	202,497	$	(32,015	)		(15.8	)%
Unallocated income and expenses, net	$	162,064	$	129,543	$	32,521			25.1	%

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ACMI Segment

ACMI Direct Contribution decreased $12.9 million, or 13.8%, primarily due to higher crew costs, including enhanced wages and work rules resulting from our interim agreement with the Southern Air pilots (see Note 11 to our Financial Statements), additional Heavy Maintenance expense and increased amortization of deferred maintenance costs.  In addition, ACMI Direct Contribution was impacted by start-up costs to meet customer growth initiatives and by labor-related service disruptions.  Partially offsetting these items was an increase in contribution from additional flying.

Charter Segment

Charter Direct Contribution decreased $42.2 million, or 49.4%, primarily due to a decrease in AMC cargo and passenger flying, a decrease in commercial cargo Yields related to the impact of tariffs and global trade tensions, and additional Heavy Maintenance expense. In addition, Charter Direct Contribution was negatively impacted by labor-related service disruptions.

Dry Leasing Segment

Dry Leasing Direct Contribution increased $23.1 million, or 98.0%, primarily due to revenue from maintenance payments related to the scheduled return of a 777-200 freighter aircraft in March 2019 and the placement of additional aircraft.  

Unallocated income and expenses, net

Unallocated income and expenses, net increased $32.5 million, or 25.1%, primarily due to a refund of aircraft rent paid in previous years recognized during the second quarter of 2018, fleet growth initiatives and increased amortization of a customer incentive asset.  

Reconciliation of GAAP to non-GAAP Financial Measures

To supplement our Financial Statements presented in accordance with GAAP, we present certain non-GAAP financial measures to assist in the evaluation of our business performance.  These non-GAAP financial measures include Adjusted income from continuing operations, net of taxes, Adjusted Diluted EPS from continuing operations, net of taxes and Adjusted earnings before interest, taxes, depreciation and amortization (“Adjusted EBITDA”), which exclude certain noncash income and expenses, and items impacting year-over-year comparisons of our results.  These non-GAAP financial measures may not be comparable to similarly titled measures used by other companies and should not be considered in isolation or as a substitute for Income from continuing operations, net of taxes and Diluted EPS from continuing operations, net of taxes which are the most directly comparable measures of performance prepared in accordance with GAAP.

We use these non-GAAP financial measures in assessing the performance of our ongoing operations and in planning and forecasting future periods.  These adjusted measures provide a more comparable basis to analyze operating results and earnings and are measures commonly used by shareholders to measure our performance.  In addition, management’s incentive compensation is determined, in part, by using Adjusted income from continuing operations, net of taxes and Adjusted EBITDA. We believe that these adjusted measures, when considered together with the corresponding GAAP financial measures and the reconciliations to those measures, provide meaningful supplemental information to assist investors and analysts in understanding our business results and assessing our prospects for future performance.

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The following is a reconciliation of Income from continuing operations, net of taxes and Diluted EPS from continuing operations, net of taxes to the corresponding non-GAAP financial measures (in thousands, except per share data):

	For the Three Months Ended
	June 30, 2019			June 30, 2018			Percent Change
Income (loss) from continuing operations, net of taxes	$	86,868		$	(21,123	)	NM
Impact from:
Special charge		3,269			9,374
Costs associated with transactions (a)		734			240
Leadership transition costs		541			-
Certain contract start-up costs (b)		1,694			-
Accrual for legal matters and professional fees		121			345
Noncash expenses and income, net (c)		11,515			7,455
Unrealized (gain) loss on financial instruments		(42,300	)		50,031
Income tax effect of reconciling items		(3,652	)		3,403
Special tax item (d)		(54,272	)		-
Adjusted income from continuing operations, net of taxes	$	4,518		$	49,725			(90.9	)%
Weighted average diluted shares outstanding		26,953			25,565
Add: dilutive warrant (e)		-			2,264
dilutive convertible notes		-			450
effect of convertible notes hedges (f)		-			(450	)
dilutive restricted stock		-			572
Adjusted weighted average diluted shares outstanding		26,953			28,401
Adjusted Diluted EPS from continuing operations, net of taxes	$	0.17		$	1.75			(90.3	)%

	For the Six Months Ended
	June 30, 2019			June 30, 2018			Percent Change
Income (loss) from continuing operations, net of taxes	$	57,158		$	(11,495	)	NM
Impact from:
Special charge		3,269			9,374
Costs associated with transactions (a)		3,261			510
Leadership transition costs		541			-
Certain contract start-up costs (b)		2,063			-
Accrual for legal matters and professional fees		162			563
Noncash expenses and income, net (c)		22,269			14,130
Loss on early extinguishment of debt		245			-
Unrealized loss on financial instruments		4,275			57,771
Net insurance recovery		(3,449	)		-
Income tax effect of reconciling items		(3,681	)		2,656
Special tax item (d)		(54,272	)		-
Adjusted income from continuing operations, net of taxes	$	31,841		$	73,509			(56.7	)%
Weighted average diluted shares outstanding		25,921			25,501
Add: dilutive warrant (e)		1,516			1,958
dilutive convertible notes		-			225
effect of convertible notes hedges (f)		-			(225	)
dilutive restricted stock		-			547
Adjusted weighted average diluted shares outstanding		27,437			28,006
Adjusted Diluted EPS from continuing operations, net of taxes	$	1.16		$	2.62			(55.7	)%

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	For the Three Months Ended
	June 30, 2019			June 30, 2018			Percent Change
Income (loss) from continuing operations, net of taxes	$	86,868		$	(21,123	)	NM
Income tax (benefit) expense		(64,683	)		12,986
Income (loss) from continuing operations before income taxes		22,185			(8,137	)
Special charge		3,269			9,374
Costs associated with transactions (a)		734			240
Leadership transition costs		541			-
Certain contract start-up costs (b)		1,694			-
Accrual for legal matters and professional fees		121			345
Noncash expenses and income, net (c)		11,515			7,455
Unrealized (gain) loss on financial instruments		(42,300	)		50,031
Adjusted pretax income		(2,241	)		59,308
Interest (income) expense, net		24,034			22,637
Other non-operating expenses (income), net		945			(7,277	)
Adjusted operating income		22,738			74,668
Depreciation and amortization		63,689			50,834
Adjusted EBITDA	$	86,427		$	125,502			(31.1	)%

	For the Six Months Ended
	June 30, 2019			June 30, 2018			Percent Change
Income (loss) from continuing operations, net of taxes	$	57,158		$	(11,495	)	NM
Income tax (benefit) expense		(59,790	)		16,794
Income (loss) from continuing operations before income taxes		(2,632	)		5,299
Special charge		3,269			9,374
Costs associated with transactions (a)		3,261			510
Leadership transition costs		541			-
Certain contract start-up costs (b)		2,063			-
Accrual for legal matters and professional fees		162			563
Noncash expenses and income, net (c)		22,269			14,130
Loss on early extinguishment of debt		245			-
Net insurance recovery		(3,449	)		-
Unrealized loss on financial instruments		4,275			57,771
Adjusted pretax income		30,004			87,647
Interest (income) expense, net		47,885			42,899
Other non-operating expenses (income)		1,419			(11,752	)
Adjusted operating income		79,308			118,794
Depreciation and amortization		128,170			100,464
Adjusted EBITDA	$	207,478		$	219,258			(5.4	)%

(a) Costs associated with transactions in 2019 primarily relate to a customer transaction with warrants (see Note 4 to our Financial Statements) and other costs associated with our acquisition of Southern Air. Costs associated with transactions in 2018 primarily related to costs associated with our acquisition of Southern Air.

(b) Certain contract start-up costs represent unique training aircraft costs required for a new customer contract (see Note 4 to our Financial Statements).

(c) Noncash expenses and income, net in 2019 and 2018 primarily related to amortization of debt discount on the convertible notes (see Note 6 to our Financial Statements), and amortization of the customer incentive asset related to customer warrants (see Note 4 to our Financial Statements).  

(d) Special tax item represents income tax benefits from the completion of the 2015 IRS examination that are not related to ongoing operations (see Note 8 to our Financial Statements).

(e)   Dilutive warrants represent potentially dilutive common shares related to warrants issued to a customer (see Note 4 to our Financial Statements).  These shares are excluded from Diluted EPS from continuing operations, net of taxes prepared in accordance with GAAP when they would have been antidilutive.

(f)   Economic benefit from the convertible notes hedges in offsetting dilution from the convertible notes.

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Liquidity and Capital Resources

The most significant liquidity events during the first half of 2019 were as follows:

Debt Transactions

In March 2019, we borrowed $19.7 million related to GEnx engine performance upgrade kits and overhauls under an unsecured five-year term loan at a fixed interest rate of 2.73%.

Operating Activities. Net cash provided by operating activities was $109.0 million for the first half of 2019, which primarily reflected Net Income of $57.2 million, noncash adjustments of $157.8 million for Depreciation and amortization, $60.0 million for Deferred taxes and $4.3 million for Unrealized loss on financial instruments, and a $40.1 million decrease in Accounts payable and accrued liabilities, and a $23.8 million increase in Prepaid expenses, current assets and other assets.  Net cash provided by operating activities was $175.9 million for the first half of 2018, which primarily reflected a $11.5 million Net Loss, noncash adjustments of $121.6 million for Depreciation and amortization and $57.8 million for Unrealized loss on financial instruments, and a $9.4 million increase in Accounts payable and accrued liabilities.  Partially offsetting these items was a $27.7 million increase in Accounts receivable.

Investing Activities. Net cash used for investing activities was $128.5 million for the first half of 2019, consisting primarily of $99.2 million of payments for flight equipment and modifications and $76.8 million of core capital expenditures, excluding flight equipment, partially offset by $38.1 million of proceeds from insurance.  Payments for flight equipment and modifications during the first half of 2019 were primarily related to 767-300 passenger aircraft and related freighter conversion costs, spare engines and GEnx engine performance upgrade kits.  All capital expenditures for 2019 were funded through working capital and the financing discussed above.  Net cash used for investing activities was $497.8 million for the first half of 2018, consisting primarily of $448.4 million of payments for flight equipment and modifications and $54.8 million of core capital expenditures, excluding flight equipment. Payments for flight equipment and modifications during the first half of 2018 were primarily related to the purchase of 777-200 aircraft, 767-300 passenger aircraft and related freighter conversion costs, spare engines and GEnx engine performance upgrade kits.

Financing Activities. Net cash used for financing activities was $92.5 million for the first half of 2019, which primarily reflected $160.1 million of payments on debt, including a $20.7 million repayment of two term loans, and $9.2 million related to the purchase of treasury stock, partially offset by $50.0 million of proceeds from our revolving credit facility and $19.7 million from debt issuance.  Net cash provided by financing activities was $257.9 million for the first half of 2018, which primarily reflected $305.1 million of proceeds from debt issuance and $135.0 million of proceeds from revolving credit facility, partially offset by $115.2 million of payments on debt, $60.0 million of payment of revolving credit facility and $10.3 million related to the purchase of treasury stock.

We consider Cash and cash equivalents, Short-term investments, Restricted cash and Net cash provided by operating activities to be sufficient to meet our debt and lease obligations and to fund core capital expenditures for 2019.  Core capital expenditures for the remainder of 2019 are expected to range between $60.0 to $70.0 million, which excludes flight equipment and capitalized interest.  

We may access external sources of capital from time to time depending on our cash requirements, assessments of current and anticipated market conditions, and the after-tax cost of capital.  To that end, we filed a shelf registration statement with the SEC in May 2017 that enables us to sell debt and/or equity securities on a registered basis over the subsequent three years, depending on market conditions, our capital needs and other factors.  Our access to capital markets can be adversely impacted by prevailing economic conditions and by financial, business and other factors, some of which are beyond our control.  Additionally, our borrowing costs are affected by market conditions and may be adversely impacted by a tightening in credit markets.

We do not expect to pay any significant U.S. federal income tax in this or the next decade.  Our business operations are subject to income tax in several foreign jurisdictions.  We do not expect to pay any significant cash income taxes in foreign jurisdictions for at least several years.  We may repatriate the unremitted earnings of our foreign subsidiaries to the extent taxes are insignificant.

Contractual Obligations and Debt Agreements

See Notes 6 and 7 to our Financial Statements for a description of our new debt and lease obligations.  See our 2018 Annual Report on Form 10-K for a tabular disclosure of our contractual obligations as of December 31, 2018 and a description of our other debt obligations and amendments thereto.

Off-Balance Sheet Arrangements

See Note 7 to our Financial Statements for a discussion of our adoption of the new leasing guidance.

35

Recent Accounting Pronouncements

See Note 2 to our Financial Statements for a discussion of recent accounting pronouncements.

Forward-Looking Statements

This Quarterly Report on Form 10-Q (this “Report”), as well as other reports, releases and written and oral communications issued or made from time to time by or on behalf of AAWW, contain statements that may constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995.  Those statements are based on management’s beliefs, plans, expectations and assumptions, and on information currently available to management.  Generally, the words “will,” “may,” “should,” “expect,” “anticipate,” “intend,” “plan,” “continue,” “believe,” “seek,” “project,” “estimate” and similar expressions used in this Report that do not relate to historical facts are intended to identify forward-looking statements.

The forward-looking statements in this Report are not representations or guarantees of future performance and involve certain risks, uncertainties and assumptions. Such risks, uncertainties and assumptions include, but are not limited to, those described in our Annual Report on Form 10-K for the year ended December 31, 2018.  Many of such factors are beyond AAWW’s control and are difficult to predict.  As a result, AAWW’s future actions, financial position, results of operations and the market price for shares of AAWW’s common stock could differ materially from those expressed in any forward-looking statements. Readers are therefore cautioned not to place undue reliance on forward-looking statements.  Such forward-looking statements speak only as of the date of this report.  AAWW does not intend to publicly update any forward-looking statements that may be made from time to time by, or on behalf of, AAWW, whether as a result of new information, future events or otherwise, except as required by law and expressly disclaims any obligation to revise or update publicly any forward-looking statement to reflect future events or circumstances.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

There have been no material changes to our market risk during the six months ended June 30, 2019.  For additional discussion of our exposure to market risk, refer to Part II, Item 7A “Quantitative and Qualitative Disclosures About Market Risk” included in our 2018 Annual Report on Form 10-K.

ITEM 4. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

An evaluation was performed under the supervision and with the participation of our management, including our Chief Executive Officer, or CEO, and Chief Financial Officer, or CFO, of the effectiveness of our disclosure controls and procedures (as defined in Rule 13a-15(e) and 15d - 15(e) under the Exchange Act) as of June 30, 2019.  Based on that evaluation, our CEO and CFO concluded that our disclosure controls and procedures are effective to ensure that information required to be disclosed by us in reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC's rules and forms, and is accumulated and communicated to our management, including our CEO and CFO, to allow timely decisions regarding required disclosure.

Changes in Internal Control Over Financial Reporting

There has been no change in our internal control over financial reporting (as defined in Rule 13a-15(f) and 15d-15(f) under the Exchange Act) during the three months ended June 30, 2019 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

36

PART II — OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

With respect to the fiscal quarter ended June 30, 2019, the information required in response to this Item is set forth in Note 11 to our Financial Statements and such information is incorporated herein by reference. Such description contains all of the information required with respect hereto.

ITEM 1A. RISK FACTORS

There have been no material changes in our risk factors from those disclosed in our 2018 Annual Report on Form 10-K.

ITEM 6. EXHIBITS

a. Exhibits

See accompanying Exhibit Index included before the signature page of this report for a list of exhibits filed or furnished with this report.

37

EXHIBIT INDEX

Exhibit Number	Description
31.1	Rule 13a-14(a)/15d-14(a) Certification of the Chief Executive Officer.
31.2	Rule 13a-14(a)/15d-14(a) Certification of the Chief Financial Officer.
32.1	Section 1350 Certifications.
101.INS	XBRL Instance Document – the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document. *
101.SCH	XBRL Taxonomy Extension Schema Document. *
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document. *
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document.  *
101.LAB	XBRL Taxonomy Extension Labels Linkbase Document. *
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document. *

* Attached as Exhibit 101 to this report are the following formatted in XBRL (Extensible Business Reporting Language): (i) Consolidated Balance Sheets as of June 30, 2019 and December 31, 2018, (ii) Consolidated Statements of Operations for the three and six months ended June 30, 2019 and 2018, (iii) Consolidated Statements of Comprehensive Income (Loss) for the three and six months ended June 30, 2019 and 2018, (iv) Consolidated Statements of Cash Flows for the six months ended June 30, 2019 and 2018, (v) Consolidated Statements of Stockholders’ Equity as of and for the three and six months ended June 30, 2019 and 2018 and (vi) Notes to the Unaudited Consolidated Financial Statements.

38

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.

	Atlas Air Worldwide Holdings, Inc.
Dated:  August 1, 2019	/s/  William J. Flynn
	William J. Flynn
	Chief Executive Officer
Dated:  August 1, 2019	/s/  Spencer Schwartz
	Spencer Schwartz
	Executive Vice President and Chief Financial Officer

39

EX-31.1

Exhibit 31.1

Rule 13a-14(a)/15d-14(a) Certification of the Chief Executive Officer

I, William J. Flynn,certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Atlas Air Worldwide Holdings, Inc.;

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

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

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

Dated: August 1, 2019	/s/ William J. Flynn
	William J. Flynn
	Chief Executive Officer

EX-31.2

Exhibit 31.2

Rule 13a-14(a)/15d-14(a) Certification of the Chief Financial Officer

I,Spencer Schwartz, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Atlas Air Worldwide Holdings, Inc.;

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

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

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

Dated: August 1, 2019	/s/ Spencer Schwartz
	Spencer Schwartz
	Executive Vice President and Chief Financial Officer

EX-32.1

Exhibit 32.1

Section 1350 Certifications

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the Quarterly Report of Atlas Air Worldwide Holdings, Inc. (the “Company”) on Form 10-Q for the period ending June 30, 2019 as filed with the Securities and Exchange Commission (the “Report”), we, William J. Flynn and Spencer Schwartz, Chief Executive Officer and Chief Financial Officer, respectively, of the Company certify that to our knowledge:

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

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

Date: August 1, 2019

/s/ William J. Flynn

William J. Flynn

Chief Executive Officer

/s/ Spencer Schwartz

Spencer Schwartz

Executive Vice President and Chief Financial Officer

XML

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2019	Jul. 26, 2019
Document And Entity Information [Abstract]
Document Type	10-Q
Document period end date	Jun. 30, 2019
Amendment flag	false
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2019
Current fiscal year end date	--12-31
Entity central index key	0001135185
Entity filer category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity registrant name	ATLAS AIR WORLDWIDE HOLDINGS INC
Entity trading symbol	AAWW
Entity common stock shares outstanding		25,854,140
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity File Number	001-16545
Entity Tax Identification Number	134146982
Entity Address, Address Line One	2000 Westchester Avenue
Entity Address, Address Line Two	Purchase
Entity Address, State or Province	New York
Entity Address, City or Town	New York
Entity Address, Postal Zip Code	10577
City Area Code	914
Local Phone Number	701-8000

XML

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Current Assets
Cash and cash equivalents	$ 110,665	$ 221,501
Short-term investments	7,153	15,624
Restricted cash	10,093	11,240
Accounts receivable, net of allowance of $1,633 and $1,563, respectively	265,489	269,320
Prepaid expenses and other current assets	81,900	112,146
Total current assets	475,300	629,831
Property and Equipment
Flight equipment	5,252,971	5,213,734
Ground equipment	83,250	75,939
Less: accumulated depreciation	(954,100)	(860,354)
Flight equipment modifications in progress	128,166	32,916
Property and equipment, net	4,510,287	4,462,235
Other Assets
Operating lease right-of-use assets	538,631	0
Deferred costs and other assets	377,962	345,037
Intangible assets, net and goodwill	83,162	97,689
Total Assets	5,985,342	5,534,792
Current Liabilities
Accounts payable	66,441	87,229
Accrued liabilities	485,436	465,669
Current portion of long-term debt and finance lease	268,686	264,835
Current portion of long-term operating leases	146,091	0
Total current liabilities	966,654	817,733
Other Liabilities
Long-term debt and finance lease	2,125,228	2,205,005
Long-term operating leases	445,821	0
Deferred taxes	195,608	256,970
Financial instruments and other liabilities	124,922	187,120
Total other liabilities	2,891,579	2,649,095
Commitments and contingencies	0	0
Stockholders’ Equity
Preferred stock, $1 par value; 10,000,000 shares authorized; no shares issued	0	0
Common stock, $0.01 par value; 100,000,000 shares authorized; 31,026,500 and 30,582,571 shares issued, 25,854,140 and 25,590,293 shares outstanding (net of treasury stock), as of June 30, 2019 and December 31, 2018, respectively	310	306
Additional paid-in-capital	746,725	736,035
Treasury stock, at cost; 5,172,360 and 4,992,278 shares, respectively	(213,728)	(204,501)
Accumulated other comprehensive loss	(3,312)	(3,832)
Retained earnings	1,597,114	1,539,956
Total stockholders’ equity	2,127,109	2,067,964
Total Liabilities and Equity	$ 5,985,342	$ 5,534,792

XML

Consolidated Balance Sheets (Parenthetical) (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Statement Of Financial Position [Abstract]
Allowance for doubtful accounts receivable	$ 1,633	$ 1,563
Preferred stock par value	$ 1	$ 1
Preferred stock shares authorized	10,000,000	10,000,000
Preferred stock shares issued	0	0
Common stock par value	$ 0.01	$ 0.01
Common stock shares authorized	100,000,000	100,000,000
Common stock shares issued	31,026,500	30,582,571
Common stock shares outstanding	25,854,140	25,590,293
Treasury stock shares	5,172,360	4,992,278

XML

Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Operating Revenue	$ 663,918	$ 666,145	$ 1,343,601	$ 1,256,159
Operating Expenses
Salaries, wages and benefits	141,450	129,176	286,924	254,258
Aircraft fuel	122,158	129,706	228,479	226,009
Travel	46,374	42,358	91,403	82,205
Aircraft rent	40,335	40,281	82,223	79,805
Navigation fees, landing fees and other rent	37,982	37,698	78,198	73,295
Passenger and ground handling services	30,525	30,202	62,685	58,264
Special charge	3,269	9,374	3,269	9,374
Transaction-related expenses	734	240	3,261	510
Other	54,961	47,094	106,054	97,345
Total Operating Expenses	654,948	605,199	1,287,757	1,154,644
Operating Income	8,970	60,946	55,844	101,515
Non-operating Expenses (Income)
Interest income	(1,278)	(1,388)	(3,322)	(3,112)
Interest expense	30,045	29,182	60,398	56,524
Capitalized interest	(627)	(1,465)	(1,090)	(3,215)
Loss on early extinguishment of debt	0	0	245	0
Unrealized (gain) loss on financial instruments	(42,300)	50,031	4,275	57,771
Other (income) expense, net	945	(7,277)	(2,030)	(11,752)
Total Non-operating Expenses (Income)	(13,215)	69,083	58,476	96,216
Income (loss) from continuing operations before income taxes	22,185	(8,137)	(2,632)	5,299
Income tax (benefit) expense	(64,683)	12,986	(59,790)	16,794
Income (loss) from continuing operations, net of taxes	86,868	(21,123)	57,158	(11,495)
Loss from discontinued operations, net of taxes	0	(27)	0	(43)
Net Income (Loss)	$ 86,868	$ (21,150)	$ 57,158	$ (11,538)
Earnings (loss) per share from continuing operations:
Basic	$ 3.36	$ (0.83)	$ 2.22	$ (0.45)
Diluted	1.61	(0.83)	2.21	(0.45)
Loss per share from discontinued operations:
Basic		0.00		0.00
Diluted		0.00		0.00
Earnings (loss) per share:
Basic	3.36	(0.83)	2.22	(0.45)
Diluted	$ 1.61	$ (0.83)	$ 2.21	$ (0.45)
Weighted average shares:
Basic	25,851	25,565	25,794	25,501
Diluted	26,953	25,565	25,921	25,501
Service [Member]
Operating Expenses
Maintenance, materials and repairs	$ 113,471	$ 88,236	$ 217,091	$ 173,115
Depreciation and amortization	$ 63,689	$ 50,834	$ 128,170	$ 100,464

XML

Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement Of Income And Comprehensive Income [Abstract]
Net Income (Loss)	$ 86,868	$ (21,150)	$ 57,158	$ (11,538)
Other comprehensive income:
Reclassification to interest expense	337	365	681	750
Income tax expense	(80)	(120)	(161)	(177)
Other comprehensive income	257	245	520	573
Comprehensive Income (Loss)	$ 87,125	$ (20,905)	$ 57,678	$ (10,965)

XML

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Operating Activities:
Income (loss) from continuing operations, net of taxes	$ 57,158	$ (11,495)
Less: Loss from discontinued operations, net of taxes	0	(43)
Net Income (Loss)	57,158	(11,538)
Adjustments to reconcile Net Income (Loss) to net cash provided by operating activities:
Depreciation and amortization	157,820	121,606
Accretion of debt securities discount	208	(512)
Provision for allowance for doubtful accounts	4	1,179
Loss on early extinguishment of debt	245	0
Special charge, net of cash payments	3,269	9,374
Unrealized (gain) loss on financial instruments	4,275	57,771
Deferred taxes	(60,122)	16,561
Stock-based compensation	10,025	10,627
Changes in:
Accounts receivable	26	(27,699)
Prepaid expenses, current assets and other assets	(23,835)	(10,815)
Accounts payable and accrued liabilities	(40,076)	9,357
Net cash provided by operating activities	108,997	175,911
Investing Activities:
Capital expenditures	(76,754)	(54,791)
Payments for flight equipment and modifications	(99,161)	(448,388)
Proceeds from insurance	38,133	0
Proceeds from investments	9,313	5,399
Net cash used for investing activities	(128,469)	(497,780)
Financing Activities:
Proceeds from debt issuance	19,723	305,059
Payment of debt issuance costs	(955)	(4,781)
Payments of debt and finance lease obligations	(160,091)	(115,194)
Proceeds from revolving credit facility	50,000	135,000
Payment of revolving credit facility	0	(60,000)
Customer maintenance reserves and deposits received	8,039	8,169
Purchase of treasury stock	(9,227)	(10,319)
Net cash provided by (used for) financing activities	(92,511)	257,934
Net decrease in cash, cash equivalents and restricted cash	(111,983)	(63,935)
Cash, cash equivalents and restricted cash at the beginning of period	232,741	291,864
Cash, cash equivalents and restricted cash at the end of period	120,758	227,929
Noncash Investing and Financing Activities:
Acquisition of flight equipment included in Accounts payable and accrued liabilities	$ 51,996	$ 66,944

XML

Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Loss [Member]	Retained Earnings [Member]
Beginning Balance at Dec. 31, 2017	$ 1,789,856	$ 301	$ (193,732)	$ 715,735	$ (3,993)	$ 1,271,545
Net Income (Loss)	(11,538)	0	0	0	0	(11,538)
Other comprehensive income	573	0	0	0	573	0
Cumulative effect of change in accounting principle	(3,126)	0	0	0	0	(3,126)
Stock-based compensation	10,627	0	0	10,627	0	0
Purchase of shares of treasury stock	(10,319)	0	(10,319)	0	0	0
Issuance of shares of restricted stock	0	5	0	(5)	0	0
Reclassification of tax effect on other comprehensive loss	0	0	0	0	(970)	970
Ending Balance at Jun. 30, 2018	1,776,073	306	(204,051)	726,357	(4,390)	1,257,851
Beginning Balance at Mar. 31, 2018	1,792,298	305	(203,950)	721,577	(4,635)	1,279,001
Net Income (Loss)	(21,150)	0	0	0	0	(21,150)
Other comprehensive income	245	0	0	0	245	0
Stock-based compensation	4,781	0	0	4,781	0	0
Purchase of shares of treasury stock	(101)	0	(101)	0	0	0
Issuance of shares of restricted stock	0	1	0	(1)	0	0
Ending Balance at Jun. 30, 2018	1,776,073	306	(204,051)	726,357	(4,390)	1,257,851
Beginning Balance at Dec. 31, 2018	2,067,964	306	(204,501)	736,035	(3,832)	1,539,956
Net Income (Loss)	57,158	0	0	0	0	57,158
Other comprehensive income	520	0	0	0	520	0
Stock-based compensation	10,025	0	0	10,025	0	0
Customer warrant	669	0	0	669	0	0
Purchase of shares of treasury stock	(9,227)	0	(9,227)	0	0	0
Issuance of shares of restricted stock	0	4	0	(4)	0	0
Ending Balance at Jun. 30, 2019	2,127,109	310	(213,728)	746,725	(3,312)	1,597,114
Beginning Balance at Mar. 31, 2019	2,034,949	310	(213,690)	741,652	(3,569)	1,510,246
Net Income (Loss)	86,868	0	0	0	0	86,868
Other comprehensive income	257	0	0	0	257	0
Stock-based compensation	4,404	0	0	4,404	0	0
Customer warrant	669	0	0	669	0	0
Purchase of shares of treasury stock	(38)	0	(38)	0	0	0
Issuance of shares of restricted stock	0	0	0	0	0	0
Ending Balance at Jun. 30, 2019	$ 2,127,109	$ 310	$ (213,728)	$ 746,725	$ (3,312)	$ 1,597,114

XML

Consolidated Statements of Stockholders' Equity (Parentheticals) (Unaudited) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement Of Stockholders Equity [Abstract]
Purchase of shares of treasury stock	743	1,500	180,082	173,002
Issuance of shares of restricted stock	4,385	15,863	443,929	455,589

XML

Basis of Presentation

6 Months Ended

Jun. 30, 2019

Basis Of Presentation [Abstract]

Basis of Presentation

1. Basis of Presentation

Our consolidated financial statements include the accounts of the holding company, Atlas Air Worldwide Holdings, Inc. (“AAWW”), and its consolidated subsidiaries.  AAWW is the parent company of Atlas Air, Inc. (“Atlas”) and Southern Air Holdings, Inc. (“Southern Air”).  AAWW is also the parent company of several subsidiaries related to our dry leasing services (collectively referred to as “Titan”).  AAWW has a 51% equity interest and 75% voting interest in Polar Air Cargo Worldwide, Inc. (“Polar”).  We record our share of Polar’s results under the equity method of accounting.

The terms “we,” “us,” “our,” and the “Company” mean AAWW and all entities included in its consolidated financial statements.

We provide outsourced aircraft and aviation operating services throughout the world, serving Africa, Asia, Australia, Europe, the Middle East, North America and South America through: (i) contractual service arrangements, including those through which we provide aircraft to customers and value-added services, including crew, maintenance and insurance (“ACMI”), as well as those through which we provide crew, maintenance and insurance, but not the aircraft (“CMI”); (ii) cargo and passenger charter services (“Charter”); and (iii) dry leasing aircraft and engines (“Dry Leasing” or “Dry Lease”).

The accompanying unaudited consolidated financial statements and related notes (the “Financial Statements”) have been prepared in accordance with the U.S. Securities and Exchange Commission (the “SEC”) requirements for quarterly reports on Form 10-Q, and consequently exclude certain disclosures normally included in audited consolidated financial statements prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”).  Intercompany accounts and transactions have been eliminated.  The Financial Statements should be read in conjunction with the audited consolidated financial statements and the notes included in the AAWW Annual Report on Form 10-K for the year ended December 31, 2018, which includes additional disclosures and a summary of our significant accounting policies.  The December 31, 2018 balance sheet data was derived from that Annual Report.  In our opinion, the Financial Statements contain all adjustments, consisting of normal recurring items, necessary to fairly state the financial position of AAWW and its consolidated subsidiaries as of June 30, 2019, the results of operations for the three and six months ended June 30, 2019 and 2018, comprehensive income (loss) for the three and six months ended June 30, 2019 and 2018, cash flows for the six months ended June 30, 2019 and 2018, and shareholders’ equity as of and for the three and six months ended June 30, 2019 and 2018.

Our quarterly results are subject to seasonal and other fluctuations, and the operating results for any quarter are therefore not necessarily indicative of results that may be otherwise expected for the entire year.

Except for per share data, all dollar amounts are in thousands unless otherwise noted.

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Summary of Significant Accounting Policies

6 Months Ended

Jun. 30, 2019

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

2. Summary of Significant Accounting Policies

Warrant Liability

Common stock warrants classified as a liability are marked-to-market at the end of each reporting period with changes in fair value recorded in Unrealized (gain) loss on financial instruments.  We utilize a Monte Carlo simulation approach to estimate the fair value of the warrant liability, which requires inputs such as our common stock price, the warrant strike price, estimated common stock price volatility and risk-free interest rate, among others.  Our earnings are affected by changes in our common stock price due to the impact those changes have on the fair value of our warrant liability (see Note 4 to our Financial Statements).

Heavy Maintenance

Except for engines used on our 747-8F aircraft, we account for heavy maintenance costs for airframes and engines used in our ACMI and Charter segments using the direct expense method. Under this method, heavy maintenance costs are charged to expense upon induction, based on our best estimate of the costs.

We account for heavy maintenance costs for airframes and engines used in our Dry Leasing segment and engines used on our 747-8F aircraft using the deferral method.  Under this method, we defer the expense recognition of scheduled heavy maintenance events, which are amortized over the estimated period until the next scheduled heavy maintenance event is required.  Amortization of deferred maintenance expense included in Depreciation and amortization was $5.3 million and $2.9 million for the three months ended June 30, 2019 and 2018, respectively and was $9.7 million and $5.3 million for the six months ended June 30, 2019 and 2018, respectively.

Deferred maintenance included within Deferred costs and other assets is as follows:

	Deferred
	Maintenance
Balance as of December 31, 2018	$	103,647
Deferred maintenance costs		57,915
Amortization of deferred maintenance		(9,690	)
Balance as of June 30, 2019	$	151,872

Recent Accounting Pronouncements Adopted in 2019

In February 2016, the Financial Accounting Standards Board (“FASB”) amended its accounting guidance for leases.  Subsequently, the FASB issued several clarifications and updates.  The guidance requires a lessee to recognize assets and liabilities on the balance sheet arising from leases with terms greater than 12 months.  While lessor accounting guidance is relatively unchanged, certain amendments were made to conform with changes made to lessee accounting and the amended revenue recognition guidance.  The new guidance continues to classify leases as either finance or operating, with classification affecting the presentation and pattern of expense and income recognition, in the statement of operations.  It also requires additional quantitative and qualitative disclosures about leasing arrangements.  We adopted the new guidance on January 1, 2019 using the modified retrospective approach, which was applied beginning on the adoption date.  Comparative information has not been restated and continues to be reported under the accounting guidance in effect for those periods.  The adoption did not have a material effect on our consolidated statements of operations or cash flows. We recognized operating lease right-of-use assets, net of pre-existing deferred rent and operating lease intangibles, and operating lease liabilities on our consolidated balance sheets of approximately $596.9 million and $650.0 million, respectively, on the adoption date (see Note 7 to our Financial Statements).

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Related Parties

6 Months Ended

Jun. 30, 2019

Related Party Transactions [Abstract]

Related Parties

3. Related Parties

Polar

AAWW has a 51% equity interest and 75% voting interest in Polar.  DHL Network Operations (USA), Inc. (“DHL”), a subsidiary of Deutsche Post AG, holds a 49% equity interest and a 25% voting interest in Polar.  Polar is a variable interest entity that we do not consolidate because we are not the primary beneficiary as the risks associated with the direct costs of operation are with DHL.  Under a 20-year blocked space agreement, which began in 2008, Polar provides air cargo capacity to DHL.  Atlas has several agreements with Polar to provide ACMI, CMI, Dry Leasing, administrative, sales and ground support services to one another.  We do not have any financial exposure to fund debt obligations or operating losses of Polar, except for any liquidated damages that we could incur under these agreements.

The following table summarizes our transactions with Polar:

	For the Three Months Ended				For the Six Months Ended
Revenue and Expenses:	June 30, 2019		June 30, 2018		June 30, 2019		June 30, 2018
Revenue from Polar	$	99,889	$	103,625	$	198,356	$	205,730
Ground handling and airport fees to Polar		545		743		1,063		1,378
Accounts receivable/payable as of:	June 30, 2019		December 31, 2018
Receivables from Polar	$	11,008	$	16,349
Payables to Polar		4,166		2,527
Aggregate Carrying Value of Polar Investment as of:	June 30, 2019		December 31, 2018
Aggregate Carrying Value of Polar Investment	$	4,870	$	4,870

In addition to the amounts in the table above, Atlas recognized revenue of $23.1 million and $24.4 million for the three months ended June 30, 2019 and 2018, respectively, and $46.4 million and $36.6 million for the six months ended June 30, 2019 and 2018, respectively, from flying on behalf of Polar.

GATS

We hold a 50% interest in GATS GP (BVI) Ltd. (“GATS”), a joint venture with an unrelated third party.  As of June 30, 2019 and December 31, 2018, our investment in GATS was $21.4 million and $22.3 million, respectively.  We had Accounts payable to GATS of $0.7 million as of June 30, 2019 and $0.5 million as of December 31, 2018.

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Amazon

6 Months Ended

Jun. 30, 2019

Warrants And Rights Note Disclosure [Abstract]

Amazon

4. Amazon

In May 2016, we entered into certain agreements with Amazon.com, Inc. and its subsidiary, Amazon Fulfillment Services, Inc., (collectively “Amazon”), which involves, among other things, CMI operation of up to 20 Boeing 767-300 freighter aircraft for Amazon by Atlas, as well as Dry Leasing by Titan.  The Dry Leases have a term of ten years from the commencement of each agreement, while the CMI operations are for seven years from the commencement of each agreement (with an option for Amazon to extend the term to ten years).  Between August 2016 and November 2018, we placed all 20 767-300 freighter aircraft into service for Amazon.  In February 2019, the number of 767-300 freighters in service for Amazon was reduced to 19 with the loss of an aircraft.

In conjunction with the agreements entered into in May 2016, we granted Amazon a warrant providing the right to acquire up to 20% of our outstanding common shares, after giving effect to the issuance of shares pursuant to the warrants, at an exercise price of $37.50 per share (“Warrant A”).  As of December 31, 2018, this warrant to purchase 7.5 million shares had vested in full.  Warrant A is exercisable in accordance with its terms through 2021.  As of June 30, 2019, no portion of Warrant A has been exercised.

The agreements entered into in May 2016 also provided incentives for future growth of the relationship as Amazon may increase its business with us.  In that regard, we granted Amazon a warrant to acquire up to an additional 10% of our outstanding common shares, after giving effect to the issuance of shares pursuant to the warrants, for an exercise price of $37.50 per share (“Warrant B”).  This warrant to purchase 3.75 million shares will vest in increments of 37,500 shares each time Amazon has paid $4.2 million of revenue to us, up to a total of $420.0 million, for incremental business beyond the original 20 767-300 freighters.  As of June 30, 2019, no portion of Warrant B has vested.  Upon vesting, Warrant B would become exercisable in accordance with its terms through May 2023.

In March 2019, we amended the agreements entered into in 2016 with Amazon, pursuant to which we will provide CMI services using Boeing 737-800 freighter aircraft provided by Amazon.  The 737-800 CMI operations will be for a term of seven years from the commencement of each agreement (with an option for Amazon to extend the term to ten years).  The first three of five 737-800 freighter aircraft entered service during the second quarter of 2019 and the remaining two are expected to enter service during the second half of 2019.  Amazon may, in its sole discretion, place up to 15 additional 737-800 freighter aircraft into service with us by May 31, 2021.

In connection with the amended agreements, we granted Amazon a warrant to acquire up to an additional 9.9% of our outstanding common shares, after giving effect to the issuance of shares pursuant to the warrants, for an exercise price of $52.90 per share (“Warrant C”).  When combined with Warrant A and Warrant B, this would allow Amazon to acquire up to a total of 39.9% (after the issuance) of our outstanding common shares and Amazon would be entitled to vote the shares it owns up to 14.9% of our outstanding common shares, in its discretion.  Amazon would be required to vote any shares it owns in excess of 14.9% of our outstanding common shares in accordance with the recommendation of our board of directors.  After Warrant B has vested in full, this warrant to purchase 6.6 million shares would vest in increments of 45,428 shares each time Amazon has paid $6.9 million of revenue to us, up to a total of $1.0 billion, for incremental business beyond Warrant A and Warrant B.  As of June 30, 2019, no portion of Warrant C has vested.  Upon vesting, Warrant C would become exercisable in accordance with its terms through March 2026.

At the time of vesting, the fair value of the vested portion of the warrants issued to Amazon is recorded as a warrant liability within Financial instruments and other liabilities (the “Amazon Warrant”).  The initial fair value of the vested portion of Warrant A was recognized as a customer incentive asset within Deferred costs and other assets, net and is amortized as a reduction of Operating Revenue in proportion to the amount of revenue recognized over the terms of the Dry Leases and CMI agreements.  Determining the amount of amortization related to the CMI agreements requires significant judgment to estimate the total number of Block Hours expected over the terms of those agreements.  

When it becomes probable that an increment of either Warrant B or C will vest and the related revenue begins to be recognized, the fair value of such portion is recorded as Additional paid-in-capital. The initial fair value of such increment is also recognized as a customer incentive asset within Deferred costs and other assets, net and is amortized as a reduction of Operating Revenue in proportion to the amount of related revenue recognized. At the time of vesting, the amount recorded in Additional paid-in-capital would be reclassified to the Amazon Warrant liability.

The following table provides a summary of the customer incentive asset:

Balance at December 31, 2018	$	184,720
Initial value for estimate of vested or expected to vest warrants		669
Amortization of customer incentive asset		(13,222	)
Balance at June 30, 2019	$	172,167

We amortized $6.9 million and $3.3 million of the customer incentive asset for the three months ended June 30, 2019 and 2018, respectively.  We amortized $13.2 million and $5.9 million of the customer incentive asset for the six months ended June 30, 2019 and 2018, respectively.  There were no impairment losses for the six months ended June 30, 2019 and 2018.  

The Amazon Warrant liability is marked-to-market at the end of each reporting period with changes in fair value recorded in Unrealized (gain) loss on financial instruments.  We recognized a net unrealized gain of $42.3 million and a net unrealized loss of $4.3 million on the Amazon Warrant during the three and six months ended June 30, 2019, respectively. We recognized net unrealized losses of $50.0 million and $57.8 million on the Amazon Warrant during the three and six months ended June 30, 2018, respectively. The fair value of the Amazon Warrant liability was $103.3 million as of June 30, 2019 and $99.0 million as of December 31, 2018.

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Supplemental Balance Sheet and Cash Flow Information

6 Months Ended

Jun. 30, 2019

Supplemental Balance Sheet And Cash Flow Information [Abstract]

Supplemental Balance Sheet and Cash Flow Information

5. Supplemental Balance Sheet and Cash Flow Information

Accounts Receivable

Accounts receivable, net of allowance related to customer contracts, excluding Dry Leasing contracts, was $204.2 million as of June 30, 2019 and $227.1 million as of December 31, 2018.

Accrued Liabilities

Accrued liabilities consisted of the following as of: 

	June 30, 2019		December 31, 2018
Maintenance	$	140,865	$	133,337
Customer maintenance reserves		112,459		104,454
Salaries, wages and benefits		48,247		82,809
Aircraft fuel		40,890		32,641
Deferred revenue		26,108		26,584
Other		116,867		85,844
Accrued liabilities	$	485,436	$	465,669

Revenue Contract Liability

Deferred revenue for customer contracts, excluding Dry Leasing contracts, represents amounts collected from, or invoiced to, customers in advance of revenue recognition.  The balance of Deferred revenue will increase or decrease based on the timing of invoices and recognition of revenue.

Significant changes in our Revenue contract liability balances during the six months ended June 30, 2019 were as follows:

Balance as of December 31, 2018	$	13,007
Revenue recognized		(63,467	)
Amounts collected or invoiced		66,438
Balance as of June 30, 2019	$	15,978

Supplemental Cash Flow Information

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the consolidated balance sheets that sum to the total shown in the consolidated statements of cash flows:

	June 30, 2019		December 31, 2018
Cash and cash equivalents	$	110,665	$	221,501
Restricted cash		10,093		11,240
Total Cash, cash equivalents and restricted cash shown in Consolidated Statements of Cash Flows	$	120,758	$	232,741

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Debt

6 Months Ended

Jun. 30, 2019

Debt Disclosure [Abstract]

Debt

6. Debt

Term Loans

In March 2019, we borrowed $19.7 million under an unsecured five-year term loan due in March 2024 (the “First 2019 Term Loan”) for GEnx engine performance upgrade kits and overhauls.  The First 2019 Term Loan contains customary covenants, events of default and accrues interest at a fixed rate of 2.73%, with principal and interest payable quarterly.

In March 2019, we received $41.1 million in proceeds from insurance related to the loss of a 767-300 freighter aircraft and used $20.7 million of the proceeds to repay two term loans related to the aircraft.  In connection with the repayment, we recognized a $0.2 million loss on early of extinguishment of debt.  During the six months ended June 30, 2019, we also recognized a net insurance recovery of $3.4 million resulting from the excess of insurance proceeds over the carrying amount of the aircraft and other related costs within Other income, net.  

Convertible Notes

In May 2017, we issued $289.0 million aggregate principal amount of 1.875% convertible senior notes that mature on June 1, 2024 (the “2017 Convertible Notes”) in an underwritten public offering.  In June 2015, we issued $224.5 million aggregate principal amount of 2.25% convertible senior notes that mature on June 1, 2022 (the “2015 Convertible Notes”) in an underwritten public offering.  The 2017 Convertible Notes and the 2015 Convertible Notes (collectively, the “Convertible Notes”) are senior unsecured obligations and accrue interest payable semiannually on June 1 and December 1 of each year.  The Convertible Notes are due on their respective maturity dates, unless earlier converted or repurchased pursuant to their respective terms.

The Convertible Notes consisted of the following as of June 30, 2019:

	2017 Convertible Notes			2015 Convertible Notes
Remaining life in months		59			35
Liability component:
Gross proceeds	$	289,000		$	224,500
Less: debt discount, net of amortization		(52,174	)		(24,974	)
Less: debt issuance cost, net of amortization		(4,085	)		(2,342	)
Net carrying amount	$	232,741		$	197,184
Equity component (1)	$	70,140		$	52,903

(1) Included in Additional paid-in capital on the consolidated balance sheet as of June 30, 2019.

The following table presents the amount of interest expense recognized related to the Convertible Notes:

	For the Three Months Ended				For the Six Months Ended
	June 30, 2019		June 30, 2018		June 30, 2019		June 30, 2018
Contractual interest coupon	$	2,618	$	2,618	$	5,235	$	5,235
Amortization of debt discount		4,186		3,932		8,308		7,804
Amortization of debt issuance costs		375		363		747		722
Total interest expense recognized	$	7,179	$	6,913	$	14,290	$	13,761

Revolving Credit Facility

In December 2018, we amended and extended our previous three-year $150.0 million secured revolving credit facility into a new four-year $200.0 million secured revolving credit facility (the “Revolver”). As of June 30, 2019, there was $50.0 million outstanding and we had $93.5 million of unused availability under the Revolver, based on the collateral borrowing base.

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Leases and Guarantees

6 Months Ended

Jun. 30, 2019

Leases [Abstract]

Leases and Guarantees

7. Leases and Guarantees

Adoption

We adopted the new lease accounting guidance using the modified retrospective method and applied it to all leases based on the contract terms in effect as of January 1, 2019.  For existing contracts, we carried forward our historical assessments of (1) whether contracts are or contain leases, (2) lease classification and (3) initial direct costs.    

Although our performance obligations under ACMI contracts include the provision of aircraft to customers, we do not separate any potential aircraft lease components from the nonlease components of these contracts as the provision of the crew, maintenance and insurance components are, in the aggregate, the predominant components.  Such contracts are accounted for in their entirety under the amended guidance for revenue recognition.

Lessee

As of June 30, 2019, we lease 21 aircraft, of which 20 are operating leases.  Lease expirations for our leased aircraft range from March 2020 to June 2032.  In addition, we lease a variety of office space, airport station locations, warehouse space, vehicles and equipment, with lease expirations ranging from July 2019 to April 2025.  We also incur variable rental costs for aircraft, engines, ground equipment and storage space based on usage of the underlying equipment or property.  For leases with terms greater than 12 months, including renewal options when appropriate, we record the related right-of-use asset and lease liability as the present value of fixed lease payments over the lease term.  Since our leases do not typically provide a readily determinable discount rate, we use our incremental borrowing rate to discount lease payments to present value.

The following table presents the lease-related assets and liabilities recorded on the consolidated balance sheet:

	Classification on the Consolidated Balance Sheets	June 30, 2019
Assets
Operating lease right-of-use assets	Operating lease right-of-use assets	$	538,631
Finance lease assets	Property and equipment, net		30,419
Less: Accumulated amortization on finance lease assets	Property and equipment, net		(4,508	)
Total lease assets		$	564,542
Liabilities
Current
Operating lease liabilities	Current portion of long-term operating leases	$	146,091
Finance lease liabilities	Current portion of long-term debt and finance lease		680
Noncurrent
Operating lease liabilities	Long-term operating leases		445,821
Finance lease liabilities	Long-term debt and finance lease		29,998
Total lease liabilities		$	622,590

Weighted Average Remaining Lease Term in years
Operating Leases	4.23
Finance Leases	13.00
Weighted Average Discount Rate
Operating Leases	4.59	%
Finance Leases	17.46	%

The following table presents information related to lease costs for finance and operating leases:

	For the Three Months Ended		For the Six Months Ended
	June 30, 2019		June 30, 2019
Operating lease costs (1)	$	40,156	$	80,081
Variable operating lease costs (1)		3,985		9,297
Finance lease costs:
Amortization of leased assets		499		997
Interest on lease liabilities		1,340		2,673
Total lease cost	$	45,980	$	93,048

(1) Expenses are classified within Aircraft rent and Navigation fees, landing fees and other rent on the consolidated statement of operations.  Short-term lease contracts are not material.

The table below presents supplemental cash flow information related to leases as follows:

	For the Six Months Ended
	June 30, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	$	79,828
Operating cash flows for finance lease		2,673
Financing cash flows for finance lease		327

As of June 30, 2019, maturities of lease liabilities for the periods indicated were as follows:

	Operating		Finance
	Leases		Lease		Total
2019	$	88,008	$	3,000	$	91,008
2020		160,931		6,000		166,931
2021		167,204		6,000		173,204
2022		116,603		6,000		122,603
2023		62,773		6,000		68,773
Thereafter		54,760		50,500		105,260
Total minimum rental payments		650,279		77,500		727,779
Less: imputed interest		58,367		46,822		105,189
Total	$	591,912	$	30,678	$	622,590

As of June 30, 2019, the Company’s obligations for operating leases that have not yet commenced are immaterial.

As of December 31, 2018, our minimum annual rental commitments for the periods indicated under operating leases with initial or remaining terms of more than one year were as follows:

	Operating
	Leases
2019	$	166,516
2020		159,383
2021		166,056
2022		115,591
2023		61,755
Thereafter		53,430
Total	$	722,731

Lessor

Our performance obligations under Dry Lease contracts involve the provision of aircraft and engines to customers for compensation that is typically based on a fixed monthly amount and all are accounted for as operating leases.  We record Dry Lease rental income on a straight-line basis over the term of the operating lease.  Dry Lease rental income subject to adjustment based on an index is recognized on a straight-line basis over each adjustment period.  Our Dry Leases do not contain purchase options, renewal options or residual guarantees.  In addition, our Dry Leases typically do not contain early termination options.  If they do, there are typically substantial termination penalties.  Rentals received but unearned under the lease agreements are recorded in deferred revenue and included in Accrued liabilities until earned.  

To manage our residual value risk, we require lessees to perform maintenance on the Dry Leased asset and they may also be required to make maintenance payments to us during or at the end of the lease term.  When an aircraft is returned at the end of lease, if we choose not to re-lease or sell the returned aircraft, we typically have the ability to operate the aircraft in our ACMI and Charter segments.

Customer maintenance reserves are amounts received during the lease term that are subject to reimbursement to the lessee upon the completion of qualifying maintenance work on the specific Dry Leased asset and are included in Accrued liabilities.  We defer revenue recognition for customer maintenance reserves until the end of the lease, when we are able to finalize the amount, if any, to be reimbursed to the lessee.

End of lease maintenance payments are amounts received upon return of the Dry Leased asset based on the utilization of the asset during the lease term.  Such payments made to us are recognized as revenue at the end of the lease.

As of June 30, 2019, our contractual amount of minimum receipts, excluding taxes, for the periods indicated under Dry Leases reflecting the terms that were in effect were as follows:

2019	$	86,864
2020		166,056
2021		145,174
2022		137,636
2023		104,008
Thereafter		246,466
Total minimum lease receipts	$	886,204

As of December 31, 2018, our contractual amount of minimum receipts, excluding taxes, for the periods indicated under Dry Leases reflecting the terms that were in effect were as follows:

	Dry Lease
	Income
2019	$	180,366
2020		169,202
2021		148,413
2022		140,876
2023		107,248
Thereafter		257,248
Total minimum lease receipts	$	1,003,353

The net book value of flight equipment on Dry Lease to customers was $1,656.2 million as of June 30, 2019 and $1,717.5 million as of December 31, 2018.  The accumulated depreciation for flight equipment on Dry Lease to customers was $268.2 million as of June 30, 2019 and $232.4 million as of December 31, 2018.  See Note 10 to our Financial Statements for disclosure of our Dry Leasing segment revenue.

Guarantees and Indemnifications

In the ordinary course of business, we enter into numerous leasing and financing arrangements for real estate, equipment, aircraft and engines that have various guarantees included in the contracts. These guarantees are primarily in the form of indemnities. In both leasing and financing transactions, we typically indemnify the lessors and any financing parties against tort liabilities that arise out of the use, occupancy, manufacture, design, operation or maintenance of the leased premises or financed aircraft, regardless of whether these liabilities relate to the negligence of the indemnified parties. Currently, we believe that any future payments required under many of these guarantees or indemnities would be immaterial, as most tort liabilities and related indemnities are covered by insurance (subject to deductibles).  However, payments under certain tax indemnities related to certain of our financing arrangements, if applicable, could be material, and would not be covered by insurance, although we believe that these payments are not probable.  Certain leased premises, such as maintenance and storage facilities, typically include indemnities of such parties for any environmental liability that may arise out of or relate to the use of the leased premises.  We also provide standard indemnification agreements to officers and directors in the ordinary course of business.

Financings and Guarantees

Our financing arrangements typically contain a withholding tax provision that requires us to pay additional amounts to the applicable lender or other financing party, if withholding taxes are imposed on such lender or other financing party as a result of a change in the applicable tax law.  These increased costs and withholding tax provisions continue for the entire term of the applicable

transaction and there is no limitation on the maximum additional amount we could be required to pay under such provisions. Any failure to pay amounts due under such provisions generally would trigger an event of default and, in a secured financing transaction, would entitle the lender to foreclose upon the collateral to realize the amount due.

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Income Taxes

6 Months Ended

Jun. 30, 2019

Income Tax Disclosure [Abstract]

Income Taxes

8. Income Taxes

During the three months ended June 30, 2019, the Internal Revenue Service (“IRS”) completed its examination of our 2015 income tax return without adjustment.  As a result, we recognized $54.6 million of previously unrecognized income tax benefits and reduced our valuation allowance by recording a $5.2 million income tax benefit.

The effective income tax benefit for the three and six months ended June 30, 2019 differed from tax at the U.S. statutory rate primarily due to $59.8 million of tax benefits related to the favorable completion of the IRS’s examination of our 2015 income tax return, and to a lesser extent for the three months ended June 30, 2019, $9.3 million of nontaxable changes in the fair value of the customer warrant liability (see Note 4 to our Financial Statements).

The effective income tax expense for the three and six months ended June 30, 2018 differed from tax at the U.S. statutory rate primarily due to $16.1 million and $17.8 million of nondeductible changes in the fair value of the customer warrant liability, respectively (see Note 4 to our Financial Statements).

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Financial Instruments

6 Months Ended

Jun. 30, 2019

Fair Value Disclosures [Abstract]

Financial Instruments

9. Financial Instruments

Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (exit price). Inputs used to measure fair value are classified in the following hierarchy:

Level 1 Unadjusted quoted prices in active markets for identical assets or liabilities;

Level 2 Other inputs that are observable directly or indirectly, such as quoted prices in active markets for similar assets or liabilities, or inactive quoted prices for identical assets or liabilities in inactive markets;

Level 3 Unobservable inputs reflecting assumptions about the inputs used in pricing the asset or liability.

We endeavor to utilize the best available information to measure fair value.

The carrying value of Cash and cash equivalents, Short-term investments and Restricted cash is based on cost, which approximates fair value.

Long-term investments consist of debt securities, maturing within five years, for which we have both the ability and the intent to hold until maturity.  These investments are classified as held-to-maturity and reported at amortized cost.  The fair value of our Long-term investments is based on a discounted cash flow analysis using the contractual cash flows of the investments and a discount rate derived from unadjusted quoted interest rates for debt securities of comparable risk.  Such debt securities represent investments in Pass-Through Trust Certificates related to enhanced equipment trust certificates (“EETCs”) issued by Atlas in 1998 and 1999.

Term loans and notes consist of term loans, notes guaranteed by the Export-Import Bank of the United States (“Ex-Im Bank”), the Revolver and EETCs. The fair values of these debt instruments are based on a discounted cash flow analysis using current borrowing rates for instruments with similar terms.

The fair value of our Convertible Notes is based on unadjusted quoted market prices for these securities.

The fair value of a customer warrant liability and certain long-term performance-based restricted shares are based on a Monte Carlo simulation which requires inputs such as our common stock price, the warrant strike price, estimated common stock price volatility, and risk-free interest rate, among others.

The following table summarizes the carrying value, estimated fair value and classification of our financial instruments as of:

	June 30, 2019
	Carrying Value		Fair Value		Level 1		Level 2		Level 3
Assets
Cash and cash equivalents	$	110,665	$	110,665	$	110,665	$	-	$	-
Short-term investments		7,153		7,153		-		-		7,153
Restricted cash		10,093		10,093		10,093		-		-
	$	127,911	$	127,911	$	120,758	$	-	$	7,153
Liabilities
Term loans and notes	$	1,913,989	$	2,022,448	$	-	$	-	$	2,022,448
Revolver		50,000		50,408		-		-		50,408
Convertible notes (1)		429,925		512,942		512,942		-		-
Customer warrant		103,275		103,275		-		103,275		-
	$	2,497,189	$	2,689,073	$	512,942	$	103,275	$	2,072,856

	December 31, 2018
	Carrying Value		Fair Value		Level 1		Level 2		Level 3
Assets
Cash and cash equivalents	$	221,501	$	221,501	$	221,501	$	-	$	-
Short-term investments		15,624		15,624		-		-		15,624
Restricted cash		11,240		11,240		11,240		-		-
Long-term investments and accrued interest		635		1,138		-		-		1,138
	$	249,000	$	249,503	$	232,741	$	-	$	16,762
Liabilities
Term loans and notes	$	2,048,972	$	1,976,373	$	-	$	-	$	1,976,373
Convertible notes (1)		420,868		490,070		490,070		-		-
Customer warrant		99,000		99,000		-		99,000		-
	$	2,568,840	$	2,565,443	$	490,070	$	99,000	$	1,976,373

(1) Carrying value is net of debt discounts and debt issuance costs (see Note 6 to our Financial Statements).

Gross unrealized gains on our long-term investments and accrued interest were $0.5 million at December 31, 2018.

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Segment Reporting

6 Months Ended

Jun. 30, 2019

Segment Reporting [Abstract]

Segment Reporting

10. Segment Reporting

Our business is organized into three operating segments based on our service offerings: ACMI, Charter and Dry Leasing.  All segments are directly or indirectly engaged in the business of air transportation services but have different commercial and economic characteristics.  Each operating segment is separately reviewed by our chief operating decision maker to assess operating results and make resource allocation decisions.  We do not aggregate our operating segments and, therefore, our operating segments are our reportable segments.

We use an economic performance metric (“Direct Contribution”) that shows the profitability of each segment after allocation of direct operating and ownership costs.  Direct Contribution represents Income (loss) from continuing operations before income taxes excluding the following: Special charge, Transaction-related expenses, nonrecurring items, Losses (gains) on the disposal of aircraft, Losses on early extinguishment of debt, Unrealized losses (gains) on financial instruments, Gains on investments and Unallocated income and expenses, net.  Direct operating and ownership costs include crew costs, maintenance, fuel, ground operations, sales costs, aircraft rent, interest expense on the portion of debt used for financing aircraft, interest income on debt securities and aircraft depreciation.  Unallocated income and expenses, net include corporate overhead, nonaircraft depreciation, noncash expenses and income, interest expense on the portion of debt used for general corporate purposes, interest income on nondebt securities, capitalized interest, foreign exchange gains and losses, other revenue and other non-operating costs, including certain contract start-up costs.

The following table sets forth Operating Revenue and Direct Contribution for our reportable segments reconciled to Operating Income and Income (loss) from continuing operations before income taxes:

	For the Three Months Ended						For the Six Months Ended
	June 30, 2019			June 30, 2018			June 30, 2019			June 30, 2018
Operating Revenue:
ACMI	$	307,278		$	277,795		$	613,845		$	544,175
Charter		315,679			346,778			620,793			631,975
Dry Leasing		43,535			39,958			113,481			76,350
Customer incentive asset amortization		(6,936	)		(3,290	)		(13,222	)		(5,886	)
Other		4,362			4,904			8,704			9,545
Total Operating Revenue	$	663,918		$	666,145		$	1,343,601		$	1,256,159

Direct Contribution:
ACMI	$	40,640		$	52,707		$	80,647		$	93,579
Charter		14,084			51,090			43,217			85,368
Dry Leasing		11,091			12,191			46,618			23,550
Total Direct Contribution for Reportable Segments		65,815			115,988			170,482			202,497
Unallocated income and expenses, net		(81,927	)		(64,480	)		(162,064	)		(129,543	)
Loss on early extinguishment of debt		-			-			(245	)		-
Unrealized gain (loss) on financial instruments		42,300			(50,031	)		(4,275	)		(57,771	)
Special charge		(3,269	)		(9,374	)		(3,269	)		(9,374	)
Transaction-related expenses		(734	)		(240	)		(3,261	)		(510	)
Income (loss) from continuing operations before income taxes		22,185			(8,137	)		(2,632	)		5,299
Add back (subtract):
Interest income		(1,278	)		(1,388	)		(3,322	)		(3,112	)
Interest expense		30,045			29,182			60,398			56,524
Capitalized interest		(627	)		(1,465	)		(1,090	)		(3,215	)
Loss on early extinguishment of debt		-			-			245			-
Unrealized (gain) loss on financial instruments		(42,300	)		50,031			4,275			57,771
Other (income) expense, net		945			(7,277	)		(2,030	)		(11,752	)
Operating Income	$	8,970		$	60,946		$	55,844		$	101,515

The following table disaggregates our Charter segment revenue by customer and service type:

	For the Three Months Ended
	June 30, 2019							June 30, 2018
		Cargo		Passenger		Total			Cargo		Passenger		Total
Commercial customers		$	133,178	$	3,054	$	136,232		$	151,578	$	544	$	152,122
AMC			92,017		87,430		179,447			104,448		90,208		194,656
Total Charter Revenue		$	225,195	$	90,484	$	315,679		$	256,026	$	90,752	$	346,778
	For the Six Months Ended
	June 30, 2019							June 30, 2018
		Cargo		Passenger		Total			Cargo		Passenger		Total
Commercial customers		$	282,082	$	10,661	$	292,743		$	282,751	$	2,590	$	285,341
AMC			149,463		178,587		328,050			178,876		167,758		346,634
Total Charter Revenue		$	431,545	$	189,248	$	620,793		$	461,627	$	170,348	$	631,975

Given the nature of our business and international flying, geographic information for revenue, long-lived assets and total assets is not presented because it is impracticable to do so.

We are exposed to a concentration of revenue from the U.S. Military Air Mobility Command (“AMC”), Polar and DHL (see above and Note 3 to our Financial Statements for further discussion regarding Polar).  No other customer accounted for more than 10.0% of our Total Operating Revenue.  Revenue from DHL was $87.4 million for the three months ended June 30, 2019 and $84.8 million for the three months ended June 30, 2018. Revenue from DHL was $177.1 million for the six months ended June 30, 2019 and $151.8 million for the six months ended June 30, 2018. We have not experienced any credit issues with these customers.

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Labor and Legal Proceedings

6 Months Ended

Jun. 30, 2019

Labor And Legal Proceedings [Abstract]

Labor and Legal Proceedings

11. Labor and Legal Proceedings

Labor

Pilots of Atlas and Southern Air, and flight dispatchers of Atlas and Polar are represented by the International Brotherhood of Teamsters (the “IBT”).  We have a five-year collective bargaining agreement (“CBA”) with our Atlas pilots, which became amendable in September 2016 and a four-year CBA with the Southern Air pilots, which became amendable in November 2016. We also have a five-year CBA with our Atlas and Polar dispatchers, which was extended in April 2017 for an additional four years, making the CBA amendable in November 2021.

After we completed the acquisition of Southern Air in April 2016, we informed the IBT of our intention to pursue (and we have been pursuing) a complete operational merger of Atlas and Southern Air.  Pursuant to the merger provisions in both the Atlas and Southern Air CBAs, joint negotiations for a single CBA for Atlas and Southern Air should commence promptly.  Further, once a seniority list is presented to us by the union, it triggers an agreed-upon timeframe to negotiate a new joint CBA with any unresolved issues submitted to binding arbitration.  After the merger process began, the IBT filed an application for mediation with the National Mediation Board (“NMB”) on behalf of the Atlas pilots, and subsequently the IBT filed a similar application on behalf of Southern Air pilots.  We have opposed both mediation applications as they are not in accordance with the merger provisions in the parties’ existing CBAs.  The Atlas and Southern Air CBAs have a defined and streamlined process for negotiating a joint CBA when a merger occurs, as in the case with the Atlas and Southern Air merger.  The NMB conducted a premediation investigation on the IBT’s Atlas application in June 2016, which is currently pending (along with the IBT’s Southern Air application).  Due to the IBT’s refusal to adhere to the merger provisions of the respective CBAs, in February 2017, the Company filed a lawsuit against the IBT to compel arbitration on the issue of whether the merger provisions in Atlas and Southern Air's CBAs apply to the bargaining process.  On March 13, 2018, the Southern District Court of New York (“NY District Court”) granted the Company’s motion to compel arbitration on this issue.  The IBT appealed the NY District Court’s decision, which is currently pending.  

The Company and the IBT conducted the Atlas and Southern Air arbitrations for this issue in October 2018.  On June 12, 2019, Southern Air prevailed in its management grievance arbitration against the IBT. The arbitrator’s decision ordered the IBT to promptly proceed with contractually required negotiations for a new Joint CBA (“JCBA”) in connection with Atlas and Southern Air’s merger. The Company expects to receive the Atlas arbitration decision in the third quarter of 2019. The Company and the IBT continue to move the process forward and bargain in good faith for a new JCBA, pursuant to an interim framework agreement until the Atlas arbitration decision is issued.

In August 2018, the Southern Air pilots ratified an agreement between Southern Air and the IBT for interim enhancements to the Southern Air pilots’ CBA. The agreement enhances the wages and work rules of the Southern Air pilots and provides similar terms and conditions of employment to those provided to Atlas pilots in the Atlas CBA.  The Southern Air pilot agreement became effective in September 2018.

In late November 2017, the U.S. District Court for the District of Columbia (“DC District Court”) granted the Company’s request to issue a preliminary injunction to stop an illegal work slowdown and require the IBT to meet its obligations under the Railway Labor Act. Specifically, the DC District Court ordered the IBT to stop “authorizing, encouraging, permitting, calling, engaging in, or continuing” any illegal pilot slowdown activities, which were intended to gain leverage in pilot contract negotiations with the Company.  In addition, the Court ordered the IBT to take affirmative action to prevent and to refrain from continuing any form of interference with the Company’s operations or any other concerted refusal to perform normal pilot operations consistent with its status quo obligations under the Railway Labor Act.  In December 2017, the IBT appealed the District Court’s decision to the U.S. Court of Appeals for the District of Columbia Circuit (“Court of Appeals”).  On July 5, 2019, the Court of Appeals, in a unanimous three judge panel, affirmed the DC District Court’s ruling and denied the IBT’s appeal. Therefore, the preliminary injunction remains in full force and effect.

We are subject to risks of work interruption or stoppage as permitted by the Railway Labor Act and may incur additional administrative expenses associated with union representation of our employees.

Matters Related to Alleged Pricing Practices

In the Netherlands, Stichting Cartel Compensation, successor in interest to claims of various shippers, has filed suit in the district court in Amsterdam against British Airways, KLM, Martinair, Air France, Lufthansa and Singapore Airlines seeking recovery for damages purportedly arising from allegedly unlawful pricing practices of such defendants.  In response, British Airways, KLM, Martinair, Air France and Lufthansa filed third-party indemnification lawsuits against Polar Air Cargo, LLC (“Old Polar”), a consolidated subsidiary of the Company, and Polar, seeking indemnification in the event the defendants are found to be liable in the main proceedings.  Another defendant, Thai Airways, filed a similar indemnification claim.  Activities in the case have focused on various procedural issues, some of which are awaiting court determination.  The Netherlands proceedings are likely to be affected by a

decision readopted by the European Commission in March 2017, finding EU competition law violations by British Airways, KLM, Martinair, Air France and Lufthansa, among others, but not Old Polar or Polar.  We are unable to reasonably predict the outcome of the litigation.  If the Company, Old Polar or Polar were to incur an unfavorable outcome, such outcome may have a material adverse impact on our business, financial condition, results of operations or cash flows.  We are unable to reasonably estimate a range of possible loss for this matter at this time.

Brazilian Customs Claim

Old Polar was cited for two alleged customs violations in Sao Paulo, Brazil, relating to shipments of goods dating back to 1999 and 2000.  Each claim asserts that goods listed on the flight manifest of two separate Old Polar scheduled service flights were not on board the aircraft upon arrival and therefore were improperly brought into Brazil.  The two claims, which also seek unpaid customs duties, taxes and penalties from the date of the alleged infraction, are approximately $5.3 million in aggregate based on June 30, 2019 exchange rates.

In both cases, we believe that the amounts claimed are substantially overstated due to a calculation error when considering the type and amount of goods allegedly missing, among other things.  In the pending claim for one of the cases, we have received an administrative decision dismissing the claim in its entirety, which remains subject to a mandatory appeal by the Brazil customs authorities.  In the other case, we received an administrative decision in favor of the Brazil customs authorities and we are in the process of appealing this decision to the Brazil courts.  As required to defend such claims, we have made deposits pending resolution of these matters.  The balance was $4.2 million as of June 30, 2019 and $4.1 million as of December 31, 2018, and is included in Deferred costs and other assets.

We are currently defending these and other Brazilian customs claims and the ultimate disposition of these claims, either individually or in the aggregate, is not expected to materially affect our financial condition, results of operations or cash flows.

Other

In addition to the matters described in this note, we have certain other contingencies incident to the ordinary course of business.  Unless disclosed otherwise, management does not expect that the ultimate disposition of such other contingencies or matters will materially affect our financial condition, results of operations or cash flows.

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Earnings Per Share

6 Months Ended

Jun. 30, 2019

Earnings Per Share [Abstract]

Earnings Per Share

12. Earnings Per Share

Basic earnings per share (“EPS”) represents income (loss) divided by the weighted average number of common shares outstanding during the measurement period.  Diluted EPS represents income (loss) divided by the weighted average number of common shares outstanding during the measurement period while also giving effect to all potentially dilutive common shares that were outstanding during the period using the treasury stock method.  The calculations of basic and diluted EPS were as follows:

	For the Three Months Ended						For the Six Months Ended
Numerator:	June 30, 2019			June 30, 2018			June 30, 2019		June 30, 2018
Income (loss) from continuing operations, net of taxes	$	86,868		$	(21,123	)	$	57,158	$	(11,495	)
Less: Unrealized gain on financial instruments, net of tax		(43,379	)		-			-		-
Diluted income from continuing operations, net of tax	$	43,489		$	(21,123	)	$	57,158	$	(11,495	)
Denominator:
Basic EPS weighted average shares outstanding		25,851			25,565			25,794		25,501
Effect of dilutive warrant		1,089			-			-		-
Effect of dilutive restricted stock		13			-			127		-
Diluted EPS weighted average shares outstanding		26,953			25,565			25,921		25,501
Earnings (loss) per share from continuing operations:
Basic	$	3.36		$	(0.83	)	$	2.22	$	(0.45	)
Diluted	$	1.61		$	(0.83	)	$	2.21	$	(0.45	)
Loss per share from discontinued operations:
Basic	$	-		$	(0.00	)	$	-	$	(0.00	)
Diluted	$	-		$	(0.00	)	$	-	$	(0.00	)
Earnings (loss) per share:
Basic	$	3.36		$	(0.83	)	$	2.22	$	(0.45	)
Diluted	$	1.61		$	(0.83	)	$	2.21	$	(0.45	)

Antidilutive shares related to warrants issued in connection with our Convertible Notes that were out of the money and excluded were 7.8 million for the three and six months ended June 30, 2019 and 3.0 million for the three and six months ended June 30, 2018. Antidilutive shares related to warrants issued to a customer and restricted share units that were excluded from the calculation of diluted EPS due to losses incurred were 3.3 million for the three months ended June 30, 2018 and 2.7 million for the six months ended June 30, 2018.  Diluted shares reflect the potential dilution that could occur from restricted shares using the treasury stock method.  The calculation of EPS does not include restricted share units and warrants issued to a customer in which performance or market conditions were not satisfied of 10.6 million for the three and six months ended June 30, 2019 and 5.8 million for the three and six months ended June 30, 2018.

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Accumulated Other Comprehensive Income (Loss)

6 Months Ended

Jun. 30, 2019

Accumulated Other Comprehensive Income Loss [Abstract]

Accumulated Other Comprehensive Income (Loss)

13. Accumulated Other Comprehensive Income (Loss)

The following table summarizes the components of Accumulated other comprehensive income (loss):

	Interest Rate			Foreign Currency
	Derivatives			Translation		Total
Balance as of December 31, 2017	$	(4,002	)	$	9	$	(3,993	)
Reclassification to interest expense		750			-		750
Tax effect		(177	)		-		(177	)
Reclassification of taxes		(970	)		-		(970	)
Balance as of June 30, 2018	$	(4,399	)	$	9	$	(4,390	)
Balance as of December 31, 2018	$	(3,841	)	$	9	$	(3,832	)
Reclassification to interest expense		681			-		681
Tax effect		(161	)		-		(161	)
Balance as of June 30, 2019	$	(3,321	)	$	9	$	(3,312	)

Interest Rate Derivatives

As of June 30, 2019, there was $4.3 million of unamortized net realized loss before taxes remaining in Accumulated other comprehensive income (loss) related to terminated forward-starting interest rate swaps, which had been designated as cash flow hedges to effectively fix the interest rates on two 747-8F financings in 2011 and three 777-200LRF financings in 2014.  The net loss is amortized and reclassified into Interest expense over the remaining life of the related debt.  Net realized losses reclassified into earnings were $0.3 million and $0.4 million for the three months ended June 30, 2019 and 2018, respectively. Net realized losses reclassified into earnings were $0.7 million and $0.8 million for the six months ended June 30, 2019 and 2018, respectively. Net realized losses expected to be reclassified into earnings within the next 12 months are $1.3 million as of June 30, 2019.

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Summary of Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2019

Accounting Policies [Abstract]

Warrant Liability

Warrant Liability

Common stock warrants classified as a liability are marked-to-market at the end of each reporting period with changes in fair value recorded in Unrealized (gain) loss on financial instruments.  We utilize a Monte Carlo simulation approach to estimate the fair value of the warrant liability, which requires inputs such as our common stock price, the warrant strike price, estimated common stock price volatility and risk-free interest rate, among others.  Our earnings are affected by changes in our common stock price due to the impact those changes have on the fair value of our warrant liability (see Note 4 to our Financial Statements).

Heavy Maintenance Policy

Heavy Maintenance

Except for engines used on our 747-8F aircraft, we account for heavy maintenance costs for airframes and engines used in our ACMI and Charter segments using the direct expense method. Under this method, heavy maintenance costs are charged to expense upon induction, based on our best estimate of the costs.

We account for heavy maintenance costs for airframes and engines used in our Dry Leasing segment and engines used on our 747-8F aircraft using the deferral method.  Under this method, we defer the expense recognition of scheduled heavy maintenance events, which are amortized over the estimated period until the next scheduled heavy maintenance event is required.  Amortization of deferred maintenance expense included in Depreciation and amortization was $5.3 million and $2.9 million for the three months ended June 30, 2019 and 2018, respectively and was $9.7 million and $5.3 million for the six months ended June 30, 2019 and 2018, respectively.

Deferred maintenance included within Deferred costs and other assets is as follows:

	Deferred
	Maintenance
Balance as of December 31, 2018	$	103,647
Deferred maintenance costs		57,915
Amortization of deferred maintenance		(9,690	)
Balance as of June 30, 2019	$	151,872

Recent Accounting Pronouncements

Recent Accounting Pronouncements Adopted in 2019

In February 2016, the Financial Accounting Standards Board (“FASB”) amended its accounting guidance for leases.  Subsequently, the FASB issued several clarifications and updates.  The guidance requires a lessee to recognize assets and liabilities on the balance sheet arising from leases with terms greater than 12 months.  While lessor accounting guidance is relatively unchanged, certain amendments were made to conform with changes made to lessee accounting and the amended revenue recognition guidance.  The new guidance continues to classify leases as either finance or operating, with classification affecting the presentation and pattern of expense and income recognition, in the statement of operations.  It also requires additional quantitative and qualitative disclosures about leasing arrangements.  We adopted the new guidance on January 1, 2019 using the modified retrospective approach, which was applied beginning on the adoption date.  Comparative information has not been restated and continues to be reported under the accounting guidance in effect for those periods.  The adoption did not have a material effect on our consolidated statements of operations or cash flows. We recognized operating lease right-of-use assets, net of pre-existing deferred rent and operating lease intangibles, and operating lease liabilities on our consolidated balance sheets of approximately $596.9 million and $650.0 million, respectively, on the adoption date (see Note 7 to our Financial Statements).

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Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2019

Accounting Policies [Abstract]

Schedule of Deferred Maintenance

Deferred maintenance included within Deferred costs and other assets is as follows

	Deferred
	Maintenance
Balance as of December 31, 2018	$	103,647
Deferred maintenance costs		57,915
Amortization of deferred maintenance		(9,690	)
Balance as of June 30, 2019	$	151,872

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Related Parties (Tables)

6 Months Ended

Jun. 30, 2019

Related Party Transactions [Abstract]

Summary of Transactions with Polar

The following table summarizes our transactions with Polar:

	For the Three Months Ended				For the Six Months Ended
Revenue and Expenses:	June 30, 2019		June 30, 2018		June 30, 2019		June 30, 2018
Revenue from Polar	$	99,889	$	103,625	$	198,356	$	205,730
Ground handling and airport fees to Polar		545		743		1,063		1,378
Accounts receivable/payable as of:	June 30, 2019		December 31, 2018
Receivables from Polar	$	11,008	$	16,349
Payables to Polar		4,166		2,527
Aggregate Carrying Value of Polar Investment as of:	June 30, 2019		December 31, 2018
Aggregate Carrying Value of Polar Investment	$	4,870	$	4,870

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Amazon (Tables)

6 Months Ended

Jun. 30, 2019

Warrants And Rights Note Disclosure [Abstract]

Summary of the Customer Incentive Asset

The following table provides a summary of the customer incentive asset:

Balance at December 31, 2018	$	184,720
Initial value for estimate of vested or expected to vest warrants		669
Amortization of customer incentive asset		(13,222	)
Balance at June 30, 2019	$	172,167

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Supplemental Balance Sheet and Cash Flow Information (Tables)

6 Months Ended

Jun. 30, 2019

Supplemental Balance Sheet And Cash Flow Information [Abstract]

Schedule of Accrued Liabilities

Accrued liabilities consisted of the following as of: 

	June 30, 2019		December 31, 2018
Maintenance	$	140,865	$	133,337
Customer maintenance reserves		112,459		104,454
Salaries, wages and benefits		48,247		82,809
Aircraft fuel		40,890		32,641
Deferred revenue		26,108		26,584
Other		116,867		85,844
Accrued liabilities	$	485,436	$	465,669

Summary of Significant Changes in Revenue Contract Liability Balances

Significant changes in our Revenue contract liability balances during the six months ended June 30, 2019 were as follows:

Balance as of December 31, 2018	$	13,007
Revenue recognized		(63,467	)
Amounts collected or invoiced		66,438
Balance as of June 30, 2019	$	15,978

Reconciliation of Cash, Cash Equivalents and Restricted Cash

Supplemental Cash Flow Information

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the consolidated balance sheets that sum to the total shown in the consolidated statements of cash flows:

	June 30, 2019		December 31, 2018
Cash and cash equivalents	$	110,665	$	221,501
Restricted cash		10,093		11,240
Total Cash, cash equivalents and restricted cash shown in Consolidated Statements of Cash Flows	$	120,758	$	232,741

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Debt (Tables)

6 Months Ended

Jun. 30, 2019

Debt Disclosure [Abstract]

Schedule of Convertible Notes

The Convertible Notes consisted of the following as of June 30, 2019:

	2017 Convertible Notes			2015 Convertible Notes
Remaining life in months		59			35
Liability component:
Gross proceeds	$	289,000		$	224,500
Less: debt discount, net of amortization		(52,174	)		(24,974	)
Less: debt issuance cost, net of amortization		(4,085	)		(2,342	)
Net carrying amount	$	232,741		$	197,184
Equity component (1)	$	70,140		$	52,903

(1) Included in Additional paid-in capital on the consolidated balance sheet as of June 30, 2019.

Summary of Interest Expense Recognized

The following table presents the amount of interest expense recognized related to the Convertible Notes:

	For the Three Months Ended				For the Six Months Ended
	June 30, 2019		June 30, 2018		June 30, 2019		June 30, 2018
Contractual interest coupon	$	2,618	$	2,618	$	5,235	$	5,235
Amortization of debt discount		4,186		3,932		8,308		7,804
Amortization of debt issuance costs		375		363		747		722
Total interest expense recognized	$	7,179	$	6,913	$	14,290	$	13,761

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Leases and Guarantees (Tables)

6 Months Ended

Jun. 30, 2019

Leases [Abstract]

Summary of Lease-Related Assets and Liabilities Recorded on Consolidated Balance Sheet

The following table presents the lease-related assets and liabilities recorded on the consolidated balance sheet:

	Classification on the Consolidated Balance Sheets	June 30, 2019
Assets
Operating lease right-of-use assets	Operating lease right-of-use assets	$	538,631
Finance lease assets	Property and equipment, net		30,419
Less: Accumulated amortization on finance lease assets	Property and equipment, net		(4,508	)
Total lease assets		$	564,542
Liabilities
Current
Operating lease liabilities	Current portion of long-term operating leases	$	146,091
Finance lease liabilities	Current portion of long-term debt and finance lease		680
Noncurrent
Operating lease liabilities	Long-term operating leases		445,821
Finance lease liabilities	Long-term debt and finance lease		29,998
Total lease liabilities		$	622,590

Weighted Average Remaining Lease Term in years
Operating Leases	4.23
Finance Leases	13.00
Weighted Average Discount Rate
Operating Leases	4.59	%
Finance Leases	17.46	%

Summary of Lease Costs for Finance and Operating Leases

The following table presents information related to lease costs for finance and operating leases:

	For the Three Months Ended		For the Six Months Ended
	June 30, 2019		June 30, 2019
Operating lease costs (1)	$	40,156	$	80,081
Variable operating lease costs (1)		3,985		9,297
Finance lease costs:
Amortization of leased assets		499		997
Interest on lease liabilities		1,340		2,673
Total lease cost	$	45,980	$	93,048

(1) Expenses are classified within Aircraft rent and Navigation fees, landing fees and other rent on the consolidated statement of operations.  Short-term lease contracts are not material.

Schedule of Supplemental Cash Flow Information

The table below presents supplemental cash flow information related to leases as follows:

	For the Six Months Ended
	June 30, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	$	79,828
Operating cash flows for finance lease		2,673
Financing cash flows for finance lease		327

Schedule of Maturities of Lease Liabilities

As of June 30, 2019, maturities of lease liabilities for the periods indicated were as follows:

	Operating		Finance
	Leases		Lease		Total
2019	$	88,008	$	3,000	$	91,008
2020		160,931		6,000		166,931
2021		167,204		6,000		173,204
2022		116,603		6,000		122,603
2023		62,773		6,000		68,773
Thereafter		54,760		50,500		105,260
Total minimum rental payments		650,279		77,500		727,779
Less: imputed interest		58,367		46,822		105,189
Total	$	591,912	$	30,678	$	622,590

Summary of Minimum Annual Rental Commitments Under Operating Leases

As of December 31, 2018, our minimum annual rental commitments for the periods indicated under operating leases with initial or remaining terms of more than one year were as follows:

	Operating
	Leases
2019	$	166,516
2020		159,383
2021		166,056
2022		115,591
2023		61,755
Thereafter		53,430
Total	$	722,731

Summary of Contractual Amount of Minimum Receipts Excluding Taxes Under Dry Leases

As of June 30, 2019, our contractual amount of minimum receipts, excluding taxes, for the periods indicated under Dry Leases reflecting the terms that were in effect were as follows:

2019	$	86,864
2020		166,056
2021		145,174
2022		137,636
2023		104,008
Thereafter		246,466
Total minimum lease receipts	$	886,204

As of December 31, 2018, our contractual amount of minimum receipts, excluding taxes, for the periods indicated under Dry Leases reflecting the terms that were in effect were as follows:

	Dry Lease
	Income
2019	$	180,366
2020		169,202
2021		148,413
2022		140,876
2023		107,248
Thereafter		257,248
Total minimum lease receipts	$	1,003,353

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Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2019

Fair Value Disclosures [Abstract]

Summary of Carrying Value, Estimated Fair Value and Classification of Financial Instruments

The following table summarizes the carrying value, estimated fair value and classification of our financial instruments as of:

	June 30, 2019
	Carrying Value		Fair Value		Level 1		Level 2		Level 3
Assets
Cash and cash equivalents	$	110,665	$	110,665	$	110,665	$	-	$	-
Short-term investments		7,153		7,153		-		-		7,153
Restricted cash		10,093		10,093		10,093		-		-
	$	127,911	$	127,911	$	120,758	$	-	$	7,153
Liabilities
Term loans and notes	$	1,913,989	$	2,022,448	$	-	$	-	$	2,022,448
Revolver		50,000		50,408		-		-		50,408
Convertible notes (1)		429,925		512,942		512,942		-		-
Customer warrant		103,275		103,275		-		103,275		-
	$	2,497,189	$	2,689,073	$	512,942	$	103,275	$	2,072,856

	December 31, 2018
	Carrying Value		Fair Value		Level 1		Level 2		Level 3
Assets
Cash and cash equivalents	$	221,501	$	221,501	$	221,501	$	-	$	-
Short-term investments		15,624		15,624		-		-		15,624
Restricted cash		11,240		11,240		11,240		-		-
Long-term investments and accrued interest		635		1,138		-		-		1,138
	$	249,000	$	249,503	$	232,741	$	-	$	16,762
Liabilities
Term loans and notes	$	2,048,972	$	1,976,373	$	-	$	-	$	1,976,373
Convertible notes (1)		420,868		490,070		490,070		-		-
Customer warrant		99,000		99,000		-		99,000		-
	$	2,568,840	$	2,565,443	$	490,070	$	99,000	$	1,976,373

(1) Carrying value is net of debt discounts and debt issuance costs (see Note 6 to our Financial Statements).

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Segment Reporting (Tables)

6 Months Ended

Jun. 30, 2019

Segment Reporting Tables [Abstract]

Operating Revenue and Direct Contribution For Our Reportable Business Segments

The following table sets forth Operating Revenue and Direct Contribution for our reportable segments reconciled to Operating Income and Income (loss) from continuing operations before income taxes:

	For the Three Months Ended						For the Six Months Ended
	June 30, 2019			June 30, 2018			June 30, 2019			June 30, 2018
Operating Revenue:
ACMI	$	307,278		$	277,795		$	613,845		$	544,175
Charter		315,679			346,778			620,793			631,975
Dry Leasing		43,535			39,958			113,481			76,350
Customer incentive asset amortization		(6,936	)		(3,290	)		(13,222	)		(5,886	)
Other		4,362			4,904			8,704			9,545
Total Operating Revenue	$	663,918		$	666,145		$	1,343,601		$	1,256,159

Direct Contribution:
ACMI	$	40,640		$	52,707		$	80,647		$	93,579
Charter		14,084			51,090			43,217			85,368
Dry Leasing		11,091			12,191			46,618			23,550
Total Direct Contribution for Reportable Segments		65,815			115,988			170,482			202,497
Unallocated income and expenses, net		(81,927	)		(64,480	)		(162,064	)		(129,543	)
Loss on early extinguishment of debt		-			-			(245	)		-
Unrealized gain (loss) on financial instruments		42,300			(50,031	)		(4,275	)		(57,771	)
Special charge		(3,269	)		(9,374	)		(3,269	)		(9,374	)
Transaction-related expenses		(734	)		(240	)		(3,261	)		(510	)
Income (loss) from continuing operations before income taxes		22,185			(8,137	)		(2,632	)		5,299
Add back (subtract):
Interest income		(1,278	)		(1,388	)		(3,322	)		(3,112	)
Interest expense		30,045			29,182			60,398			56,524
Capitalized interest		(627	)		(1,465	)		(1,090	)		(3,215	)
Loss on early extinguishment of debt		-			-			245			-
Unrealized (gain) loss on financial instruments		(42,300	)		50,031			4,275			57,771
Other (income) expense, net		945			(7,277	)		(2,030	)		(11,752	)
Operating Income	$	8,970		$	60,946		$	55,844		$	101,515

Schedule of Disaggregated Charter Segment Revenue by Customer and Service Type

The following table disaggregates our Charter segment revenue by customer and service type:

	For the Three Months Ended
	June 30, 2019							June 30, 2018
		Cargo		Passenger		Total			Cargo		Passenger		Total
Commercial customers		$	133,178	$	3,054	$	136,232		$	151,578	$	544	$	152,122
AMC			92,017		87,430		179,447			104,448		90,208		194,656
Total Charter Revenue		$	225,195	$	90,484	$	315,679		$	256,026	$	90,752	$	346,778
	For the Six Months Ended
	June 30, 2019							June 30, 2018
		Cargo		Passenger		Total			Cargo		Passenger		Total
Commercial customers		$	282,082	$	10,661	$	292,743		$	282,751	$	2,590	$	285,341
AMC			149,463		178,587		328,050			178,876		167,758		346,634
Total Charter Revenue		$	431,545	$	189,248	$	620,793		$	461,627	$	170,348	$	631,975

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Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2019

Earnings Per Share [Abstract]

Calculations of Basic and Diluted EPS

The calculations of basic and diluted EPS were as follows:

	For the Three Months Ended						For the Six Months Ended
Numerator:	June 30, 2019			June 30, 2018			June 30, 2019		June 30, 2018
Income (loss) from continuing operations, net of taxes	$	86,868		$	(21,123	)	$	57,158	$	(11,495	)
Less: Unrealized gain on financial instruments, net of tax		(43,379	)		-			-		-
Diluted income from continuing operations, net of tax	$	43,489		$	(21,123	)	$	57,158	$	(11,495	)
Denominator:
Basic EPS weighted average shares outstanding		25,851			25,565			25,794		25,501
Effect of dilutive warrant		1,089			-			-		-
Effect of dilutive restricted stock		13			-			127		-
Diluted EPS weighted average shares outstanding		26,953			25,565			25,921		25,501
Earnings (loss) per share from continuing operations:
Basic	$	3.36		$	(0.83	)	$	2.22	$	(0.45	)
Diluted	$	1.61		$	(0.83	)	$	2.21	$	(0.45	)
Loss per share from discontinued operations:
Basic	$	-		$	(0.00	)	$	-	$	(0.00	)
Diluted	$	-		$	(0.00	)	$	-	$	(0.00	)
Earnings (loss) per share:
Basic	$	3.36		$	(0.83	)	$	2.22	$	(0.45	)
Diluted	$	1.61		$	(0.83	)	$	2.21	$	(0.45	)

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Accumulated Other Comprehensive Income (Loss) (Tables)

6 Months Ended

Jun. 30, 2019

Accumulated Other Comprehensive Income Loss [Abstract]

Components of Accumulated Other Comprehensive Income (Loss)

The following table summarizes the components of Accumulated other comprehensive income (loss):

	Interest Rate			Foreign Currency
	Derivatives			Translation		Total
Balance as of December 31, 2017	$	(4,002	)	$	9	$	(3,993	)
Reclassification to interest expense		750			-		750
Tax effect		(177	)		-		(177	)
Reclassification of taxes		(970	)		-		(970	)
Balance as of June 30, 2018	$	(4,399	)	$	9	$	(4,390	)
Balance as of December 31, 2018	$	(3,841	)	$	9	$	(3,832	)
Reclassification to interest expense		681			-		681
Tax effect		(161	)		-		(161	)
Balance as of June 30, 2019	$	(3,321	)	$	9	$	(3,312	)

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Basis of Presentation - Additional Information (Details) - Polar [Member]	6 Months Ended
	Jun. 30, 2019
Basis Of Presentation [Line Items]
Equity interest	51.00%
Voting interest	75.00%

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Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Jan. 01, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Deferred maintenance amortization expense	$ 5,300	$ 2,900	$ 9,690	$ 5,300
Operating lease right of use assets, net	538,631		538,631		$ 596,900	$ 0
Operating lease liabilities	$ 591,912		$ 591,912		$ 650,000

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Summary of Significant Accounting Policies - Schedule of Deferred Maintenance (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Accounting Policies [Abstract]
Beginning Balance			$ 103,647
Deferred maintenance costs			57,915
Amortization of deferred maintenance	$ (5,300)	$ (2,900)	(9,690)	$ (5,300)
Ending Balance	$ 151,872		$ 151,872

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Related Parties - Polar - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Polar [Member]
Related Party Transaction [Line Items]
Revenue recognized	$ 23.1	$ 24.4	$ 46.4	$ 36.6
Polar [Member]
Related Party Transaction [Line Items]
Equity interest	51.00%		51.00%
Voting interest			75.00%
DHL [Member] | Polar [Member]
Related Party Transaction [Line Items]
Equity interest	49.00%		49.00%
Voting interest			25.00%

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Related Parties - Summary of Transactions with Polar (Details) - Polar [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Related Party Transaction [Line Items]
Revenue from related party	$ 99,889	$ 103,625	$ 198,356	$ 205,730
Ground handling and airport fees to Polar	545	$ 743	1,063	$ 1,378
Receivables from related party	11,008		11,008		$ 16,349
Payables to related party	4,166		4,166		2,527
Aggregate Carrying Value of Polar Investment	$ 4,870		$ 4,870		$ 4,870

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Related Parties - GATS - Additional Information (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
GATS [Member]
Related Party Transaction [Line Items]
Voting interest	50.00%
Investment in joint venture	$ 21.4	$ 22.3
GATS [Member]
Related Party Transaction [Line Items]
Payables to related party	$ 0.7	$ 0.5

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Amazon - Additional Information (Details) - USD ($)	1 Months Ended		3 Months Ended		6 Months Ended		12 Months Ended
	Mar. 31, 2019	May 31, 2016	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Class Of Warrant Or Right [Line Items]
Operating Revenue			$ 663,918,000	$ 666,145,000	$ 1,343,601,000	$ 1,256,159,000
Amortization of customer incentive asset			6,900,000	3,300,000	13,222,000	5,900,000
Impairment losses of customer incentive asset					0	0
Warrant liability unrealized (gains) losses			(42,300,000)	$ 50,000,000.0	4,300,000	$ 57,800,000
Fair value of warrant liability			$ 103,300,000		$ 103,300,000		$ 99,000,000.0
Warrant A [Member]
Class Of Warrant Or Right [Line Items]
Right to acquire outstanding common shares					up to 20% of our outstanding common shares
Warrant exercise price		$ 37.50
Warrant for number of shares fully vested							7,500,000
Warrant vesting year		2021
Warrants exercised					0
Warrant B [Member]
Class Of Warrant Or Right [Line Items]
Additional warrant to acquire outstanding shares					up to an additional 10% of our outstanding common shares
Additional warrant exercise price		$ 37.50
Additional warrant to buy number of shares vesting		3,750,000
Vesting increments of Amazon warrants		37,500
Operating Revenue		$ 4,200,000
Portion of warrant vested			0		0
Additional warrant vesting year		2023-05
Warrant C [Member]
Class Of Warrant Or Right [Line Items]
Right to acquire outstanding common shares					up to an additional 9.9% of our outstanding common shares
Warrant exercise price	$ 52.90
Vesting increments of Amazon warrants	45,428
Operating Revenue	$ 6,900,000
Portion of warrant vested			0		0
Incremental warrant to buy number of shares vesting.	6,600,000
Warrant vesting year					2026-03
Warrant A, B and C [Member]
Class Of Warrant Or Right [Line Items]
Right to acquire outstanding common shares					up to a total of 39.9% (after the issuance) of our outstanding common shares
Maximum [Member]
Class Of Warrant Or Right [Line Items]
Amazon entitled to vote shares of it owns of outstanding common shares percentage	14.90%
Maximum [Member] | Warrant A [Member]
Class Of Warrant Or Right [Line Items]
Warrant providing right to acquire outstanding common shares percentage		20.00%
Maximum [Member] | Warrant B [Member]
Class Of Warrant Or Right [Line Items]
Percentage of additional warrant to acquire outstanding common shares		10.00%
Operating Revenue		$ 420,000,000.0
Maximum [Member] | Warrant C [Member]
Class Of Warrant Or Right [Line Items]
Warrant providing right to acquire outstanding common shares percentage	9.90%
Operating Revenue	$ 1,000,000,000.0
Maximum [Member] | Warrant A, B and C [Member]
Class Of Warrant Or Right [Line Items]
Warrant providing right to acquire outstanding common shares percentage	39.90%
Dry Leases [Member]
Class Of Warrant Or Right [Line Items]
Lease term			10 years		10 years
CMI Operation [Member]
Class Of Warrant Or Right [Line Items]
Lease term	7 years		7 years		7 years

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Amazon - Summary of the Customer Incentive Asset (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Warrants And Rights Note Disclosure [Abstract]
Balance at December 31, 2018			$ 184,720
Initial value for estimate of vested or expected to vest warrants			669
Amortization of customer incentive asset	$ (6,900)	$ (3,300)	(13,222)	$ (5,900)
Balance at June 30, 2019	$ 172,167		$ 172,167

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Supplemental Balance Sheet and Cash Flow Information - Additional Information (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Supplemental Balance Sheet And Cash Flow Information [Abstract]
Accounts receivable related to customer contracts excluding dry leasing contracts	$ 204.2	$ 227.1

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Supplemental Balance Sheet and Cash Flow Information - Schedule of Accrued Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Supplemental Balance Sheet And Cash Flow Information [Abstract]
Maintenance	$ 140,865	$ 133,337
Customer maintenance reserves	112,459	104,454
Salaries, wages and benefits	48,247	82,809
Aircraft fuel	40,890	32,641
Deferred revenue	26,108	26,584
Other	116,867	85,844
Accrued liabilities	$ 485,436	$ 465,669

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Supplemental Balance Sheet and Cash Flow Information - Summary of Significant Changes in Revenue Contract Liability Balances (Details) - Non-Dry Lease Revenue Contracts with Customers [Member] $ in Thousands	6 Months Ended
	Jun. 30, 2019 USD ($)
Revenue Recognition [Line Items]
Balance as of December 31, 2018	$ 13,007
Revenue recognized	(63,467)
Amounts collected or invoiced	66,438
Balance as of June 30, 2019	$ 15,978

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Supplemental Balance Sheet and Cash Flow Information - Reconciliation of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018	Dec. 31, 2017
Supplemental Balance Sheet And Cash Flow Information [Abstract]
Cash and cash equivalents	$ 110,665	$ 221,501
Restricted cash	10,093	11,240
Total Cash, cash equivalents and restricted cash shown in Consolidated Statements of Cash Flows	$ 120,758	$ 232,741	$ 227,929	$ 291,864

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Debt - Term Loans - Additional Information (Details) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Mar. 31, 2019 USD ($) TermLoan	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)
Debt Instrument [Line Items]
Proceeds from insurance				$ 38,133	$ 0
Loss on early extinguishment of debt		$ 0	$ 0	245	$ 0
767-300 Freighter Aircraft [Member]
Debt Instrument [Line Items]
Proceeds from insurance	$ 41,100
Number of term loans | TermLoan	2
Repayments of debt	$ 20,700
Loss on early extinguishment of debt	200
Insurance recoveries, net				$ 3,400
Unsecured Term Loan [Member] | First 2019 Term Loan [Member]
Debt Instrument [Line Items]
Debt instrument face amount	$ 19,700
Debt instrument term	5 years
Debt instrument maturity date	2024-03
Debt instrument fixed interest rate	2.73%
Debt instrument frequency of periodic payment	principal and interest payable quarterly

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Debt - Convertible Notes - Additional Information (Details) - USD ($) $ in Thousands	1 Months Ended
	May 31, 2017	Jun. 30, 2015	Jun. 30, 2019
2017 Convertible Notes [Member]
Debt Instrument [Line Items]
Convertible notes aggregate principal amount	$ 289,000		$ 289,000
Convertable notes, interest rate	1.875%
Convertable notes, date of matruity	Jun. 01, 2024
2015 Convertible Notes [Member]
Debt Instrument [Line Items]
Convertible notes aggregate principal amount		$ 224,500	$ 224,500
Convertable notes, interest rate		2.25%
Convertable notes, date of matruity		Jun. 01, 2022

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Debt - Schedule of Convertible Notes (Details) - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2019	May 31, 2017	Jun. 30, 2015
2017 Convertible Notes [Member]
Debt Instrument [Line Items]
Remaining life in months		59 months
Gross proceeds		$ 289,000	$ 289,000
Less: debt discount, net of amortization		(52,174)
Less: debt issuance cost, net of amortization		(4,085)
Net carrying amount		232,741
Equity component	[1]	$ 70,140
2015 Convertible Notes [Member]
Debt Instrument [Line Items]
Remaining life in months		35 months
Gross proceeds		$ 224,500		$ 224,500
Less: debt discount, net of amortization		(24,974)
Less: debt issuance cost, net of amortization		(2,342)
Net carrying amount		197,184
Equity component	[1]	$ 52,903

[1] Included in Additional paid-in capital on the consolidated balance sheet as of June 30, 2019.

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Debt - Summary of Interest Expense Recognized (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Short Term Debt [Line Items]
Total interest expense recognized	$ 30,045	$ 29,182	$ 60,398	$ 56,524
Convertible Notes [Member]
Short Term Debt [Line Items]
Contractual interest coupon	2,618	2,618	5,235	5,235
Amortization of debt discount	4,186	3,932	8,308	7,804
Amortization of debt issuance costs	375	363	747	722
Total interest expense recognized	$ 7,179	$ 6,913	$ 14,290	$ 13,761

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Debt - Revolving Credit Facility - Additional Information (Details) - Revolver [Member] - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2016	Jun. 30, 2019
Debt Instrument [Line Items]
Term of revolving credit facility	4 years	3 years
Borrowing capacity	$ 200.0	$ 150.0
Outstanding balance			$ 50.0
Unused availability			$ 93.5

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Leases and Guarantees - Additional Information (Details) $ in Millions	6 Months Ended
	Jun. 30, 2019 USD ($) LeasedAircraft	Dec. 31, 2018 USD ($)
Lessee Lease Description [Line Items]
Number of aircraft | LeasedAircraft	21
Number of aircraft operated under operating lease | LeasedAircraft	20
Lessee, operating lease, description	As of June 30, 2019, we lease 21 aircraft, of which 20 are operating leases.  Lease expirations for our leased aircraft range from March 2020 to June 2032.  In addition, we lease a variety of office space, airport station locations, warehouse space, vehicles and equipment, with lease expirations ranging from July 2019 to April 2025.
Net book value on flight equipment dry leased to customers | $	$ 1,656.2	$ 1,717.5
Accumulated depreciation on flight equipment on dry lease | $	$ 268.2	$ 232.4
Minimum [Member]
Lessee Lease Description [Line Items]
Operating lease expiration period	2020-03
Maximum [Member]
Lessee Lease Description [Line Items]
Operating lease expiration period	2032-06
Office Space, Airport Station Locations, Warehouse Space, Vehicles and Equipment [Member] | Minimum [Member]
Lessee Lease Description [Line Items]
Operating lease expiration period	2019-07
Office Space, Airport Station Locations, Warehouse Space, Vehicles and Equipment [Member] | Maximum [Member]
Lessee Lease Description [Line Items]
Operating lease expiration period	2025-04

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Leases and Guarantees - Summary of Lease-Related Assets and Liabilities Recorded on Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
Leases [Abstract]
Operating lease right-of-use assets	$ 538,631	$ 596,900	$ 0
Finance lease assets	$ 30,419
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:PropertyPlantAndEquipmentNet
Less: Accumulated amortization on finance lease assets	$ (4,508)
Total lease assets	564,542
Operating lease liabilities	146,091		0
Finance lease liabilities	680
Operating lease liabilities	445,821		$ 0
Finance lease liabilities	29,998
Total lease liabilities	$ 622,590

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Leases and Guarantees - Summary of Weighted Average Remaining Lease Term and Discount Rate (Details)	Jun. 30, 2019
Weighted Average Discount Rate
Operating Leases	4.59%
Finance Leases	17.46%

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Leases and Guarantees - Summary of Lease Costs for Finance and Operating Leases (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019
Leases [Abstract]
Operating lease costs	$ 40,156	$ 80,081
Variable operating lease costs	3,985	9,297
Finance lease costs:
Amortization of leased assets	499	997
Interest on lease liabilities	1,340	2,673
Total lease cost	$ 45,980	$ 93,048

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Leases and Guarantees - Schedule of Supplemental Cash Flow Information (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019 USD ($)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	$ 79,828
Operating cash flows for finance lease	2,673
Financing cash flows for finance lease	$ 327

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Leases and Guarantees - Schedule of Maturities of Lease Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jan. 01, 2019
Operating Leases [Abstract]
Operating Leases, 2019	$ 88,008
Operating Leases, 2020	160,931
Operating Leases, 2021	167,204
Operating Leases, 2022	116,603
Operating Leases, 2023	62,773
Operating Leases, Thereafter	54,760
Operating Leases, Total minimum rental payments	650,279
Operating Leases, Less: imputed interest	58,367
Operating Leases	591,912	$ 650,000
Finance Lease [Abstract]
Finance Lease, 2019	3,000
Finance Lease, 2020	6,000
Finance Lease, 2021	6,000
Finance Lease, 2022	6,000
Finance Lease, 2023	6,000
Finance Lease, Thereafter	50,500
Finance Lease, Total minimum rental payments	77,500
Finance Lease, Less: imputed interest	46,822
Finance Lease	30,678
Total [Abstract]
2019	91,008
2020	166,931
2021	173,204
2022	122,603
2023	68,773
Thereafter	105,260
Total minimum rental payments	727,779
Less: imputed interest	105,189
Total	$ 622,590

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Leases and Guarantees - Summary of Minimum Annual Rental Commitments Under Operating Leases (Details) $ in Thousands	Dec. 31, 2018 USD ($)
Leases [Abstract]
2019	$ 166,516
2020	159,383
2021	166,056
2022	115,591
2023	61,755
Thereafter	53,430
Total	$ 722,731

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Leases and Guarantees - Summary of Contractual Amount of Minimum Receipts Excluding Taxes Under Dry Leases (Details) - Dry Leases [Member] - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Lessor Lease Description [Line Items]
2019	$ 86,864
2020	166,056
2021	145,174
2022	137,636
2023	104,008
Thereafter	246,466
Total minimum lease receipts	$ 886,204
2019		$ 180,366
2020		169,202
2021		148,413
2022		140,876
2023		107,248
Thereafter		257,248
Total minimum lease receipts		$ 1,003,353

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Income Taxes - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Taxes [Line Items]
Tax (benefits) expense related to favorable completion of examination		$ 16,100,000		$ 17,800,000
U.S. Internal Revenue Service [Member]
Income Taxes [Line Items]
Previously unrecognized income tax benefits recognized			$ 54,600,000
Reduction in valuation allowance, recognized as income tax benefit			5,200,000
Tax (benefits) expense related to favorable completion of examination	$ (59,800)		$ (59,800)
NonTaxable changes in fair value of customer warrant liability	$ 9,300
Income tax examination tax year under examination			2015

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Financial Instruments - Additional Information (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Long Term Investments Details [Abstract]
Long-term investments maturing period	5 years
Gross unrealized gains on long-term investments and accrued interest		$ 0.5

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Financial Instruments - Summary of Carrying Value, Estimated Fair Value and Classification of Financial Instruments (Details) - USD ($) $ in Thousands		Jun. 30, 2019	Dec. 31, 2018
Assets
Short-term investments		$ 7,153	$ 15,624
Restricted cash		10,093	11,240
Liabilities
Customer warrant		172,167	184,720
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Assets
Cash and cash equivalents		110,665	221,501
Short-term investments		7,153	15,624
Restricted cash		10,093	11,240
Long-term investments and accrued interest			635
Financial instruments assets		127,911	249,000
Liabilities
Term loans and notes		1,913,989	2,048,972
Revolver		50,000
Convertible notes	[1]	429,925	420,868
Customer warrant		103,275	99,000
Financial instruments liabilities		2,497,189	2,568,840
Estimate of Fair Value, Fair Value Disclosure [Member]
Assets
Cash and cash equivalents		110,665	221,501
Short-term investments		7,153	15,624
Restricted cash		10,093	11,240
Long-term investments and accrued interest			1,138
Financial instruments assets		127,911	249,503
Liabilities
Term loans and notes		2,022,448	1,976,373
Revolver		50,408
Convertible notes	[1]	512,942	490,070
Customer warrant		103,275	99,000
Financial instruments liabilities		2,689,073	2,565,443
Fair Value, Inputs, Level 1 [Member]
Assets
Cash and cash equivalents		110,665	221,501
Short-term investments		0	0
Restricted cash		10,093	11,240
Long-term investments and accrued interest			0
Financial instruments assets		120,758	232,741
Liabilities
Term loans and notes		0	0
Revolver		0
Convertible notes	[1]	512,942	490,070
Customer warrant		0	0
Financial instruments liabilities		512,942	490,070
Fair Value, Inputs, Level 2 [Member]
Assets
Cash and cash equivalents		0	0
Short-term investments		0	0
Restricted cash		0	0
Long-term investments and accrued interest			0
Financial instruments assets		0	0
Liabilities
Term loans and notes		0	0
Revolver		0
Convertible notes	[1]	0	0
Customer warrant		103,275	99,000
Financial instruments liabilities		103,275	99,000
Fair Value, Inputs, Level 3 [Member]
Assets
Cash and cash equivalents		0	0
Short-term investments		7,153	15,624
Restricted cash		0	0
Long-term investments and accrued interest			1,138
Financial instruments assets		7,153	16,762
Liabilities
Term loans and notes		2,022,448	1,976,373
Revolver		50,408
Convertible notes	[1]	0	0
Customer warrant		0	0
Financial instruments liabilities		$ 2,072,856	$ 1,976,373

[1] Carrying value is net of debt discounts and debt issuance costs (see Note 6 to our Financial Statements).

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Segment Reporting - Additional Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($) Segment	Jun. 30, 2018 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments | Segment			3
Operating Revenue	$ 663,918	$ 666,145	$ 1,343,601	$ 1,256,159
DHL [Member]
Segment Reporting Information [Line Items]
Operating Revenue	$ 87,400	$ 84,800	$ 177,100	$ 151,800

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Segment Reporting - Operating Revenue and Direct Contribution For Our Reportable Business Segments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Operating Revenue:
Customer incentive asset amortization	$ (6,936)	$ (3,290)	$ (13,222)	$ (5,886)
Other	4,362	4,904	8,704	9,545
Total Operating Revenue	663,918	666,145	1,343,601	1,256,159
Direct Contribution:
Total Direct Contribution for Reportable Segments	65,815	115,988	170,482	202,497
Unallocated income and expenses, net	(81,927)	(64,480)	(162,064)	(129,543)
Loss on early extinguishment of debt	0	0	(245)	0
Unrealized gain (loss) on financial instruments	42,300	(50,031)	(4,275)	(57,771)
Special charge	(3,269)	(9,374)	(3,269)	(9,374)
Transaction-related expenses	(734)	(240)	(3,261)	(510)
Income (loss) from continuing operations before income taxes	22,185	(8,137)	(2,632)	5,299
Interest income	(1,278)	(1,388)	(3,322)	(3,112)
Interest expense	30,045	29,182	60,398	56,524
Capitalized interest	(627)	(1,465)	(1,090)	(3,215)
Loss on early extinguishment of debt	0	0	245	0
Unrealized (gain) loss on financial instruments	(42,300)	50,031	4,275	57,771
Other (income) expense, net	945	(7,277)	(2,030)	(11,752)
Operating Income	8,970	60,946	55,844	101,515
ACMI [Member]
Operating Revenue:
Operating Revenue	307,278	277,795	613,845	544,175
Direct Contribution:
Total Direct Contribution for Reportable Segments	40,640	52,707	80,647	93,579
Charter [Member]
Operating Revenue:
Operating Revenue	315,679	346,778	620,793	631,975
Direct Contribution:
Total Direct Contribution for Reportable Segments	14,084	51,090	43,217	85,368
Dry Leasing [Member]
Operating Revenue:
Operating Revenue	43,535	39,958	113,481	76,350
Direct Contribution:
Total Direct Contribution for Reportable Segments	$ 11,091	$ 12,191	$ 46,618	$ 23,550

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Segment Reporting - Schedule of Disaggregated Charter Segment Revenue by Customer and Service Type (Details) - Charter [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting Information [Line Items]
Total Charter Revenue	$ 315,679	$ 346,778	$ 620,793	$ 631,975
Commercial Customers [Member]
Segment Reporting Information [Line Items]
Total Charter Revenue	136,232	152,122	292,743	285,341
AMC [Member]
Segment Reporting Information [Line Items]
Total Charter Revenue	179,447	194,656	328,050	346,634
Cargo [Member]
Segment Reporting Information [Line Items]
Total Charter Revenue	225,195	256,026	431,545	461,627
Cargo [Member] | Commercial Customers [Member]
Segment Reporting Information [Line Items]
Total Charter Revenue	133,178	151,578	282,082	282,751
Cargo [Member] | AMC [Member]
Segment Reporting Information [Line Items]
Total Charter Revenue	92,017	104,448	149,463	178,876
Passenger [Member]
Segment Reporting Information [Line Items]
Total Charter Revenue	90,484	90,752	189,248	170,348
Passenger [Member] | Commercial Customers [Member]
Segment Reporting Information [Line Items]
Total Charter Revenue	3,054	544	10,661	2,590
Passenger [Member] | AMC [Member]
Segment Reporting Information [Line Items]
Total Charter Revenue	$ 87,430	$ 90,208	$ 178,587	$ 167,758

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Labor and Legal Proceedings - Additional Information (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Brazilian Customs Claim [Member]
Loss Contingencies [Line Items]
Brazilian claims in the aggregate	$ 5.3
Amounts on deposit for Brazilian claims included in deferred costs and other assets	$ 4.2	$ 4.1
Atlas Pilots [Member]
Loss Contingencies [Line Items]
Collective bargaining agreement period	5 years
Southern Air Pilots [Member]
Loss Contingencies [Line Items]
Collective bargaining agreement period	4 years
Atlas and Polar Dispatchers [Member]
Loss Contingencies [Line Items]
Collective bargaining agreement period	5 years

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Earnings Per Share - Calculations of Basic and Diluted EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Numerator:
Income (loss) from continuing operations, net of taxes	$ 86,868	$ (21,123)	$ 57,158	$ (11,495)
Less: Unrealized gain on financial instruments, net of tax	(43,379)	0	0	0
Diluted income from continuing operations, net of tax	$ 43,489	$ (21,123)	$ 57,158	$ (11,495)
Denominator:
Basic EPS weighted average shares outstanding	25,851	25,565	25,794	25,501
Effect of dilutive warrant	1,089	0	0	0
Effect of dilutive restricted stock	13	0	127	0
Diluted EPS weighted average shares outstanding	26,953	25,565	25,921	25,501
Earnings (loss) per share from continuing operations:
Basic	$ 3.36	$ (0.83)	$ 2.22	$ (0.45)
Diluted	1.61	(0.83)	2.21	(0.45)
Loss per share from discontinued operations:
Basic		0.00		0.00
Diluted		0.00		0.00
Earnings (loss) per share:
Basic	3.36	(0.83)	2.22	(0.45)
Diluted	$ 1.61	$ (0.83)	$ 2.21	$ (0.45)

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Earnings Per Share - Additional Information (Details) - shares shares in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Restricted shares and units in which performance or market conditions were not satisfied	10.6	5.8	10.6	5.8
Warrants Issued to Customer and Restricted Share Units [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive shares excluded from the calculation of diluted EPS		3.3		2.7
Warrants [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive shares excluded from the calculation of diluted EPS	7.8	3.0	7.8	3.0

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Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	$ 2,067,964	$ 1,789,856
Reclassification to interest expense	681	750
Tax effect	(161)	(177)
Reclassification of taxes		(970)
Ending Balance	2,127,109	1,776,073
Interest Rate Derivatives [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(3,841)	(4,002)
Reclassification to interest expense	681	750
Tax effect	(161)	(177)
Reclassification of taxes		(970)
Ending Balance	(3,321)	(4,399)
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	9	9
Tax effect	0	0
Reclassification of taxes		0
Ending Balance	9	9
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(3,832)	(3,993)
Ending Balance	$ (3,312)	$ (4,390)

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Accumulated Other Comprehensive Income (Loss) - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Accumulated Other Comprehensive Income Loss [Abstract]
Unamortized realized loss in Accumulated other comprehensive income (loss) related to forward-starting interest rate swaps	$ 4.3		$ 4.3
Net realized losses reclassified into earnings	0.3	$ 0.4	0.7	$ 0.8
Realized losses related to forward-starting interest rate swaps expected to be reclassified into earnings within the next 12 months	$ 1.3		$ 1.3