10-Q

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, 2017  

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)

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 and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted 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 and post 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	☐  (Do not check if a smaller reporting company)	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 28, 2017, there were 25,265,748 shares of the registrant’s Common Stock outstanding.

TABLE OF CONTENTS

		Page
Part I. FINANCIAL INFORMATION
Item 1.	Financial Statements
	Consolidated Balance Sheets as of June 30, 2017 and December 31, 2016 (unaudited)	3
	Consolidated Statements of Operations for the Three and Six Months Ended June 30, 2017 and 2016 (unaudited)	4
	Consolidated Statements of Comprehensive Income for the Three and Six Months Ended June 30, 2017 and 2016 (unaudited)	5
	Consolidated Statements of Cash Flows for the Six Months ended June 30, 2017 and 2016 (unaudited)	6
	Consolidated Statements of Stockholders’ Equity as of and for the Six Months ended June 30, 2017 and 2016 (unaudited)	7
	Notes to Unaudited Consolidated Financial Statements	8
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	21
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	34
Item 4.	Controls and Procedures	34
PART II. OTHER INFORMATION
Item 1.	Legal Proceedings	35
Item 1A.	Risk Factors	35
Item 6.	Exhibits	35
	Signatures	36
	Exhibit Index	37

PART I — FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

Atlas Air Worldwide Holdings, Inc.

Consolidated Balance Sheets

(in thousands, except share data)

(Unaudited)

	June 30, 2017			December 31, 2016
Assets
Current Assets
Cash and cash equivalents	$	271,655		$	123,890
Short-term investments		7,920			4,313
Restricted cash		11,092			14,360
Accounts receivable, net of allowance of $965 and $997, respectively		165,013			166,486
Prepaid maintenance		1,899			4,418
Prepaid expenses and other current assets		52,927			44,603
Total current assets		510,506			358,070
Property and Equipment
Flight equipment		4,156,460			3,886,714
Ground equipment		72,167			68,688
Less:  accumulated depreciation		(636,189	)		(568,946	)
Flight equipment modifications in progress		223,489			154,226
Property and equipment, net		3,815,927			3,540,682
Other Assets
Long-term investments and accrued interest		23,008			27,951
Deferred costs and other assets		232,748			204,647
Intangible assets, net and goodwill		111,104			116,029
Total Assets	$	4,693,293		$	4,247,379
Liabilities and Equity
Current Liabilities
Accounts payable	$	80,882		$	59,543
Accrued liabilities		406,440			320,887
Current portion of long-term debt and capital lease		196,136			184,748
Total current liabilities		683,458			565,178
Other Liabilities
Long-term debt and capital lease		1,949,983			1,666,663
Deferred taxes		307,962			298,165
Financial instruments and other liabilities		158,588			200,035
Total other liabilities		2,416,533			2,164,863
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;     30,063,328 and 29,633,605 shares issued, 25,265,748 and 25,017,242     shares outstanding (net of treasury stock), as of June 30, 2017     and December 31, 2016, respectively		301			296
Additional paid-in-capital		703,987			657,082
Treasury stock, at cost; 4,797,580 and 4,616,363 shares, respectively		(192,755	)		(183,119	)
Accumulated other comprehensive loss		(4,491	)		(4,993	)
Retained earnings		1,086,260			1,048,072
Total stockholders’ equity		1,593,302			1,517,338
Total Liabilities and Equity	$	4,693,293		$	4,247,379

See accompanying Notes to Unaudited Consolidated Financial Statements

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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, 2017			June 30, 2016			June 30, 2017			June 30, 2016
Operating Revenue	$	517,366		$	443,272		$	992,761		$	861,887
Operating Expenses
Salaries, wages and benefits		111,488			101,542			215,575			195,387
Aircraft fuel		83,486			61,353			165,918			124,573
Maintenance, materials and repairs		64,769			55,435			137,585			112,459
Depreciation and amortization		40,986			37,208			78,880			72,213
Aircraft rent		33,792			36,723			69,865			73,760
Travel		34,891			32,010			67,249			62,333
Passenger and ground handling services		23,573			22,019			48,696			42,898
Navigation fees, landing fees and other rent		25,255			18,777			43,790			40,751
Gain on disposal of aircraft		(93	)		-			(147	)		-
Special charge		-			-			-			6,631
Transaction-related expenses		1,396			16,788			2,312			17,581
Other		39,345			40,593			80,523			72,420
Total Operating Expenses		458,888			422,448			910,246			821,006
Operating Income		58,478			20,824			82,515			40,881
Non-operating Expenses (Income)
Interest income		(1,342	)		(1,405	)		(2,598	)		(3,009	)
Interest expense		24,670			20,938			46,194			42,240
Capitalized interest		(1,931	)		(690	)		(3,711	)		(1,047	)
Loss on early extinguishment of debt		-			-			-			132
Unrealized gain on financial instruments		(13,763	)		(26,475	)		(8,550	)		(26,475	)
Other expense (income)		1,061			48			809			(192	)
Total Non-operating Expenses (Income)		8,695			(7,584	)		32,144			11,649
Income from continuing operations before income taxes		49,783			28,408			50,371			29,232
Income tax expense		10,739			7,489			11,292			7,842
Income from continuing operations, net of taxes		39,044			20,919			39,079			21,390
Loss from discontinued operations, net of taxes		(105	)		(345	)		(891	)		(345	)
Net Income	$	38,939		$	20,574		$	38,188		$	21,045
Earnings (loss) per share from continuing operations:
Basic	$	1.55		$	0.84		$	1.55		$	0.86
Diluted	$	0.92		$	(0.26	)	$	1.13		$	(0.24	)
Loss per share from discontinued operations:
Basic	$	(0.00	)	$	(0.01	)	$	(0.04	)	$	(0.01	)
Diluted	$	(0.00	)	$	(0.01	)	$	(0.03	)	$	(0.01	)
Earnings (loss) per share:
Basic	$	1.54		$	0.83		$	1.51		$	0.85
Diluted	$	0.92		$	(0.28	)	$	1.09		$	(0.26	)
Weighted average shares:
Basic		25,257			24,812			25,210			24,761
Diluted		26,791			25,225			26,823			25,036

See accompanying Notes to Unaudited Consolidated Financial Statements

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Atlas Air Worldwide Holdings, Inc.

Consolidated Statements of Comprehensive Income

(in thousands)

(Unaudited)

	For the Three Months Ended						For the Six Months Ended
	June 30, 2017			June 30, 2016			June 30, 2017			June 30, 2016
Net Income	$	38,939		$	20,574			38,188			21,045
Other comprehensive income:
Interest rate derivatives:
Reclassification to interest expense		402			441			820			895
Income tax expense		(156	)		(171	)		(318	)		(347	)
Other comprehensive income		246			270			502			548
Comprehensive Income	$	39,185		$	20,844			38,690			21,593

See accompanying Notes to Unaudited Consolidated Financial Statements

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Atlas Air Worldwide Holdings, Inc.

Consolidated Statements of Cash Flows

(in thousands)

(Unaudited)

	For the Six Months Ended
	June 30, 2017			June 30, 2016
Operating Activities:
Income from continuing operations, net of taxes	$	39,079		$	21,390
Less: Loss from discontinued operations, net of taxes		(891	)		(345	)
Net Income		38,188			21,045
Adjustments to reconcile Net Income to net cash provided by operating activities:
Depreciation and amortization		90,842			81,818
Accretion of debt securities discount		(604	)		(650	)
Provision for allowance for doubtful accounts		134			321
Special charge, net of cash payments		-			6,631
Loss on early extinguishment of debt		-			132
Unrealized gain on financial instruments		(8,550	)		(26,475	)
Gain on disposal of aircraft		(147	)		-
Deferred taxes		11,000			7,667
Stock-based compensation expense		10,579			10,961
Changes in:
Accounts receivable		(5,204	)		39,354
Prepaid expenses, current assets and other assets		(36,067	)		(15,382	)
Accounts payable and accrued liabilities		12,636			(78,178	)
Net cash provided by operating activities		112,807			47,244
Investing Activities:
Capital expenditures		(45,237	)		(27,239	)
Payments for flight equipment and modifications		(226,812	)		(186,213	)
Acquisition of business, net of cash acquired		-			(107,498	)
Proceeds from investments		1,941			7,512
Proceeds from disposal of aircraft		147			-
Net cash used for investing activities		(269,961	)		(313,438	)
Financing Activities:
Proceeds from debt issuance		435,325			84,790
Proceeds from revolving credit facility		150,000			-
Payment of revolving credit facility		(150,000	)		-
Customer maintenance reserves and deposits received		18,062			7,187
Customer maintenance reserves paid		(6,384	)		-
Proceeds from sale of convertible note warrants		38,148			-
Payments for convertible note hedges		(70,140	)		-
Purchase of treasury stock		(9,636	)		(4,255	)
Excess tax benefit from stock-based compensation expense		-			168
Payment of debt issuance costs		(10,323	)		(1,074	)
Payments of debt		(93,401	)		(91,208	)
Net cash provided by (used for) financing activities		301,651			(4,392	)
Net increase (decrease) in cash, cash equivalents and restricted cash		144,497			(270,586	)
Cash, cash equivalents and restricted cash at the beginning of period		138,250			438,931
Cash, cash equivalents and restricted cash at the end of period	$	282,747		$	168,345
Noncash Investing and Financing Activities:
Acquisition of flight equipment included in Accounts payable and accrued liabilities	$	75,668		$	15,448
Acquisition of flight equipment under capital lease	$	32,380		$	-

See accompanying Notes to Unaudited Consolidated Financial Statements

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Atlas Air Worldwide Holdings, Inc.

Consolidated Statements of Stockholders’ Equity

(in thousands, except share data)

(Unaudited)

									Accumulated
						Additional			Other					Total
	Common		Treasury			Paid-In			Comprehensive			Retained		Stockholders'
	Stock		Stock			Capital			Loss			Earnings		Equity
Balance at December 31, 2016	$	296	$	(183,119	)	$	657,082		$	(4,993	)	$	1,048,072	$	1,517,338
Net Income		-		-			-			-			38,188		38,188
Other comprehensive income		-		-			-			502			-		502
Stock-based compensation		-		-			10,579			-			-		10,579
Purchase of 181,217 shares of treasury stock		-		(9,636	)		-			-			-		(9,636	)
Issuance of 429,723 shares of restricted stock		5		-			(5	)		-			-		-
Equity component of convertible note, net of tax		-		-			43,248			-			-		43,248
Purchase of convertible note hedges, net of tax		-		-			(45,065	)		-			-		(45,065	)
Issuance of convertible note warrants		-		-			38,148			-			-		38,148
Balance at June 30, 2017	$	301	$	(192,755	)	$	703,987		$	(4,491	)	$	1,086,260	$	1,593,302

									Accumulated
						Additional			Other					Total
	Common		Treasury			Paid-In			Comprehensive			Retained		Stockholders'
	Stock		Stock			Capital			Loss			Earnings		Equity
Balance at December 31, 2015	$	290	$	(171,844	)	$	625,244		$	(6,063	)	$	1,006,556	$	1,454,183
Net Income		-		-			-			-			21,045		21,045
Other comprehensive income		-		-			-			548			-		548
Stock-based compensation		-		-			10,961			-			-		10,961
Purchase of 115,362 shares of treasury stock		-		(4,255	)		-			-			-		(4,255	)
Issuance of 306,790 shares of restricted stock		3		-			(3	)		-			-		-
Tax expense on restricted stock and stock options		-		-			(614	)		-			-		(614	)
Balance at June 30, 2016	$	293	$	(176,099	)	$	635,588		$	(5,515	)	$	1,027,601	$	1,481,868

See accompanying Notes to Unaudited Consolidated Financial Statements

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Atlas Air Worldwide Holdings, Inc.

Notes to Unaudited Consolidated Financial Statements

June 30, 2017

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, 2016, which includes additional disclosures and a summary of our significant accounting policies.  The December 31, 2016 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, 2017, the results of operations for the three and six months ended June 30, 2017 and 2016, comprehensive income for the three and six months ended June 30, 2017 and 2016, cash flows for the six months ended June 30, 2017 and 2016, and shareholders’ equity as of and for the six months ended June 30, 2017 and 2016.

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

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 $1.1 million and zero for the three months ended June 30, 2017 and June 30, 2016, respectively, and was $1.9 million and zero for the six months ended June 30, 2017 and June 30, 2016, respectively.  Deferred maintenance included within Deferred costs and other assets is as follows:

	Deferred Maintenance
Balance as of December 31, 2016	$	19,100
Deferred maintenance costs		24,042
Amortization of deferred maintenance		(1,902	)
Balance as of June 30, 2017	$	41,240

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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, 2017		December 31, 2016
Cash and cash equivalents	$	271,655	$	123,890
Restricted cash		11,092		14,360
Total Cash, cash equivalents and restricted cash
shown in consolidated statements of cash flows	$	282,747	$	138,250

Recent Accounting Pronouncements

In March 2016, the Financial Accounting Standards Board (“FASB”) amended its accounting guidance for share-based compensation.  The amended guidance changes how companies account for certain aspects of share-based payment awards to employees, including the accounting for income taxes, forfeitures, and statutory tax withholding requirements, as well as classification in the statement of cash flows.  We adopted this amended guidance on January 1, 2017 on a prospective basis.  As a result, we recognized $1.5 million of excess tax benefits during the six months ended June 30, 2017 as a reduction of income tax expense in our consolidated statements of operations.  Excess tax benefits were previously recognized within equity.  Additionally, our consolidated statements of cash flows present such excess tax benefits, which were previously presented as a financing activity, as an operating activity.

In February 2016, the FASB amended its accounting guidance for leases.  The guidance requires a lessee to recognize assets and liabilities on the balance sheet arising from leases with terms greater than twelve months.  While lessor accounting guidance is relatively unchanged, certain amendments were made to conform with changes made to lessee accounting and amended revenue recognition guidance.  The new guidance will continue 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.  The amended guidance is effective as of the beginning of 2019, with early adoption permitted.  While we are still assessing the impact the amended guidance will have on our financial statements, we expect that recognizing the right-of-use asset and related lease liability will impact our balance sheet materially.  We have developed and are implementing a plan for adopting this amended guidance.

In May 2014, the FASB amended its accounting guidance for revenue recognition.  Subsequently, the FASB has issued several clarifications and updates.  The fundamental principles of the new guidance are that companies should recognize revenue in a manner that reflects the timing of the transfer of services to customers and consideration that a company expects to receive for the services provided.  It also requires additional disclosures necessary for the financial statement users to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers.  We will adopt this guidance on its required effective date of January 1, 2018.  While we are still assessing the methods of adoption and impact the amended guidance will have on our financial statements, we expect that an immaterial amount of revenue currently recognized based on flight departure will likely be recognized over time as the services are performed.  In addition, we expect that revenue related to contracted minimum block hour guarantees under certain ACMI and CMI contracts will likely be recognized in later periods under the amended guidance.  The implementation of our plan to adopt this amended guidance is progressing as expected.

3. Related Parties

DHL Investment and 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 (“DP”), 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 (the “BSA”), 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.

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The following table summarizes our transactions with Polar:

	For the Three Months Ended				For the Six Months Ended
Revenue and Expenses:	June 30, 2017		June 30, 2016		June 30, 2017		June 30, 2016
Revenue from Polar	$	108,930	$	101,980	$	211,158	$	200,717
Ground handling and airport fees to Polar		513		321		979		624
Accounts receivable/payable as of:	June 30, 2017		December 31, 2016
Receivables from Polar	$	9,702	$	8,161
Payables to Polar		893		2,019
Aggregate Carrying Value of Polar Investment as of:	June 30, 2017		December 31, 2016
Aggregate Carrying Value of Polar Investment	$	4,870	$	4,870

GATS

We hold a 50% interest in GATS GP (BVI) Ltd. (“GATS”), a joint venture with an unrelated third party.  As of June 30, 2017 and December 31, 2016, our investment in GATS was $21.5 million and $22.2 million, respectively.  We had Accounts payable to GATS of $0.5 million as of June 30, 2017 and $2.4 million as of December 31, 2016.

4. Southern Air Acquisition

On April 7, 2016, we completed the acquisition of Southern Air and its subsidiaries, including Southern Air Inc. and Florida West International Airways, Inc. (“Florida West”).  The acquisition of Southern Air provided us with immediate entry into 777 and 737 aircraft operating platforms, with the potential for developing additional business with existing and new customers. We believe this augments our ability to offer the broadest array of aircraft and services for domestic, regional and international operations.  For the three and six months ended June 30, 2017, we incurred Transaction-related expenses of $1.4 million and $2.3 million, respectively.  For the three and six months ended June 30, 2016, we incurred Transaction-related expenses of $13.3 million and $14.1 million, respectively.  Transaction-related expenses are primarily related to: compensation costs, including employee termination benefits; professional fees; and integration costs associated with the acquisition.

The unaudited estimated pro forma operating revenue for AAWW, including Southern Air, for the three and six months ended June 30, 2016 were $444.9 million and $889.0 million, respectively, including adjustments to conform with our accounting policies.  The earnings of Southern Air were not material for the three and six months ended June 30, 2016 and, accordingly, pro forma and actual earnings information have not been presented.  

As part of integrating Southern Air, management decided and committed to pursue a plan to sell Florida West.  As a result, the financial results for Florida West were presented as a discontinued operation and the assets and liabilities of Florida West were classified as held for sale from the date of acquisition through December 31, 2016.  In February 2017, management determined that a sale was no longer likely to occur and committed to a plan to wind-down the Florida West operations.  The wind-down of operations was completed during the first quarter of 2017.

A summary of the employee termination benefit liabilities, which are expected to be paid by the first quarter of 2018, is as follows:

	Employee Termination Benefits
Liability as of December 31, 2016	$	1,214
Wind-down expenses		836
Cash payments		(1,528	)
Liability as of June 30, 2017	$	522

5. Special Charge

During the first quarter of 2016, we classified four CF6-80 engines as held for sale, recognized an impairment loss of $6.5 million and ceased depreciation on the engines.  All four of those engines were traded in during 2016.  During the fourth quarter of 2016, we classified two CF6-80 engines as held for sale, recognized an impairment loss of $3.5 million and ceased depreciation on the

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engines.  One of those engines was traded in during the first quarter of 2017.  The carrying value of the remaining CF6-80 engine held for sale at June 30, 2017 was $1.4 million, and of the two CF6-80 engines held for sale at December 31, 2016 was $2.8 million, which was included within Prepaid expenses and other current assets in the consolidated balance sheets.The remaining CF6-80 engine classified as held for sale is expected to be sold during 2017.

6. 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 20 Boeing 767-300 freighter aircraft for Amazon by Atlas, as well as Dry Leasing by Titan.  The Dry Leases will have a term of ten years from the commencement of each lease, while the CMI operations will be for seven years from the commencement of each agreement (with an option for Amazon to extend the term to a total of ten years).  The first two aircraft were placed in service during the third quarter of 2016 and the first quarter of 2017.  The next four aircraft were placed in service during the second quarter of 2017 with the remainder expected to be placed in service by the end of 2018.

In conjunction with these agreements, 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.  A portion of the warrant, representing the right to purchase 3.75 million shares, vested immediately upon issuance of the warrant and the remainder of the warrant, representing the right to purchase 3.75 million shares, will vest in increments of 375,000 as the lease and operation of each of the 11^th through 20^th aircraft commences.  The warrant will be exercisable in accordance with its terms through 2021.  As of June 30, 2017, no warrants have been exercised.

The agreements also provide 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.  This warrant to purchase 3.75 million shares will vest in conjunction with payments by Amazon for additional business with us.  The warrant will be exercisable in accordance with its terms through 2023.

The $92.9 million fair value of the vested portion of the warrant issued to Amazon as of May 4, 2016 was recorded as a warrant liability within Financial instruments and other liabilities (the “Amazon Warrant”).  The initial fair value of the warrant was recognized as a customer incentive asset within Deferred costs and other assets, net and is being amortized as a reduction of revenue in proportion to the amount of revenue recognized over the terms of the Dry Leases and CMI agreements.  We amortized $0.9 million and $1.3 million of the customer incentive asset for the three and six months ended June 30, 2017, respectively.  The balance of the customer incentive asset, net of amortization, was $91.0 million as of June 30, 2017 and $92.4 million as of December 31, 2016.

The Amazon Warrant liability is marked-to-market at the end of each reporting period with changes in fair value recorded in Unrealized gain on financial instruments.  We utilize a Monte Carlo simulation approach to estimate the fair value of the Amazon Warrant 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.  We recognized a net unrealized gain of $13.8 million and $8.6 million on the Amazon Warrant during the three and six months ended June 30, 2017, respectively.  We recognized a net unrealized gain of $26.5 million on the Amazon Warrant during the three and six months ended June 30, 2016.  The fair value of the Amazon Warrant liability was $87.2 million as of June 30, 2017 and $95.8 million as of December 31, 2016.

7. Accrued Liabilities

Accrued liabilities consisted of the following as of:

	June 30, 2017		December 31, 2016
Maintenance	$	140,000	$	54,495
Customer maintenance reserves		93,492		81,830
Salaries, wages and benefits		40,978		55,063
U.S. class action settlement		30,000		35,000
Deferred revenue		20,877		10,298
Aircraft fuel		21,141		16,149
Other		59,952		68,052
Accrued liabilities	$	406,440	$	320,887

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8. Debt

Term Loans and Capital Lease

We have entered into various term loans during 2017 to finance the purchase and conversion of 767-300 aircraft, andfor GEnx engine performance upgrade kits and overhauls.  Each term loan requires payment of principal and interest quarterly in arrears.  Funds available under each term loan are subject to usual and customary fees, and funds drawn typically bear interest at a fixed rate based on LIBOR, plus a margin.  Each facility is guaranteed by us and subject to customary covenants and events of default.

The following table summarizes the terms and principal balances for each term loan entered into during 2017 (in millions):

	Issue	Face		Collateral	Original	Interest Rate	Interest
	Date	Value		Type	Term	Type	Rate
First 2017 Term Loan	April 2017	$	20.1	767-300	91 months	Fixed		3.02%
Second 2017 Term Loan	April 2017		21.3	767-300	91 months	Fixed		3.16%
Third 2017 Term Loan	May 2017		21.5	767-300	91 months	Fixed		3.16%
Fourth 2017 Term Loan	June 2017		21.3	767-300	91 months	Fixed		3.09%
Fifth 2017 Term Loan	June 2017		21.7	767-300	91 months	Fixed		3.11%
Sixth 2017 Term Loan	June 2017		21.7	767-300	91 months	Fixed		3.11%
Seventh 2017 Term Loan	June 2017		18.7	None	58 months	Fixed		2.17%
Total		$	146.3

In March 2017, we amended and extended a lease for a 747-400 freighter aircraft to June 2032 at a lower monthly lease payment.  As a result of the extension, we determined that the lease qualifies as a capital lease.  The present value of the future minimum lease payments was $32.4 million.

Convertible Notes

In May 2017, we issued $289.0 million aggregate principal amount of convertible senior notes (the “2017 Convertible Notes”) in an underwritten public offering.  The Convertible Notes are senior unsecured obligations and accrue interest payable semiannually on June 1 and December 1 of each year at a fixed rate of 1.875%.  The 2017 Convertible Notes will mature on June 1, 2024, unless earlier converted or repurchased pursuant to their terms.

We used the majority of the net proceeds in May 2017 to repay $150.0 million then outstanding under our revolving credit facility and to fund the cost of the convertible note hedges described below.

Each $1,000 of principal of the 2017 Convertible Notes will initially be convertible into 16.3713 shares of our common stock, which is equal to an initial conversion price of $61.08 per share. The conversion rate will be subject to adjustment upon the occurrence of certain specified events but will not be adjusted for accrued and unpaid interest, except in certain limited circumstances. Upon the occurrence of a “make-whole fundamental change,” we will, in certain circumstances, increase the conversion rate by a number of additional shares of our common stock for the 2017 Convertible Notes converted in connection with such “make-whole fundamental change”. Additionally, if we undergo a “fundamental change,” a holder will have the option to require us to repurchase all or a portion of its 2017 Convertible Notes for cash at a price equal to 100% of the principal amount of the 2017 Convertible Notes being repurchased plus any accrued and unpaid interest through, but excluding, the fundamental change repurchase date.

In connection with the offering of the 2017 Convertible Notes, we entered into convertible note hedge transactions whereby we have the option to purchase initially (subject to adjustment for certain specified events) a total of 4,731,306 shares of our common stock at a price of $61.08 per share.  The total cost of the convertible note hedge transactions was $70.1 million. In addition, we sold warrants to the option counterparties whereby the holders of the warrants have the option to purchase initially (subject to adjustment for certain specified events) a total of 4,731,306 shares of our common stock at a price of $92.20.  We received $38.1 million in cash proceeds from the sale of these warrants.

Taken together, the purchase of the convertible note hedges and the sale of warrants are intended to offset any economic dilution from the conversion of the 2017 Convertible Notes when the stock price is below $92.20 per share and to effectively increase the overall conversion price from $61.08 to $92.20 per share.  However, for purposes of the computation of diluted earnings per share in accordance with GAAP, dilution will occur when the average share price of our common stock for a given period exceeds the conversion price of the 2017 Convertible Notes, which initially is equal to $61.08 per share.  The $32.0 million net cost incurred in

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connection with the convertible note hedges and warrants was recorded as a reduction to additional paid-in capital, net of tax, in the consolidated balance sheet.

On or after September 1, 2023 until the close of business on the second scheduled trading day immediately preceding the maturity date, a holder may convert all or a portion of its 2017 Convertible Notes.

Upon conversion, the 2017 Convertible Notes will be settled, at our election, in cash, shares of our common stock, or a combination of cash and shares of our common stock.  Our current intent and policy is to settle conversions with a combination of cash and shares of common stock with the principal amount of the 2017 Convertible Notes paid in cash.

Holders may only convert their 2017 Convertible Notes at their option at any time prior to September 1, 2023, under the following circumstances:

• during any calendar quarter (and only during such calendar quarter) if, for each of at least 20 trading days (whether or not consecutive) during the 30 consecutive trading day period ending on, and including, the last trading day of the immediately preceding calendar quarter, the last reported sale price of our common stock for such trading day is equal to or greater than 130% of the conversion price on such trading day;

• during the five consecutive business day period immediately following any five consecutive trading day period (the “measurement period”) in which, for each trading day of the measurement period, the trading price per $1,000 principal amount of the convertible notes for such trading day was less than 98% of the product of the last reported sale price of our common stock for such trading day and the conversion rate on such trading day; or

• upon the occurrence of specified corporate events.

We separately account for the liability and equity components of convertible notes.  The carrying amount of the liability component was determined by measuring the fair value of a similar liability that does not have an associated conversion feature, assuming our nonconvertible unsecured debt borrowing rate.  The carrying value of the equity component, the conversion option, which is recognized as additional paid-in-capital, net of tax, creates a debt discount on the convertible notes.  The debt discount was determined by deducting the relative fair value of the liability component from the proceeds of the convertible notes and is amortized to interest expense using an effective interest rate of 6.14% over the term of the 2017 Convertible Notes.  The equity component will not be remeasured as long as it continues to meet the conditions for equity classification.

The debt issuance costs related to the issuance of the 2017 Convertible Notes were allocated to the liability and equity components based on their relative values, as determined above.  Total debt issuance costs were $7.5 million, of which $5.7 million was allocated to the liability component and $1.8 million was allocated to the equity component. The debt issuance costs allocated to the liability component are amortized to interest expense using the effective interest method over the term of the 2017 Convertible Notes.

In June 2015, we issued $224.5 million aggregate principal amount of convertible senior notes (the “2015 Convertible Notes”) in an underwritten public offering.  The 2015 Convertible Notes are senior unsecured obligations and accrue interest payable semiannually on June 1 and December 1 of each year at a fixed rate of 2.25%.  The 2015 Convertible Notes will mature on June 1, 2022, unless earlier converted or repurchased pursuant to their terms.

As of June 30, 2017, the 2017 Convertible Notes and the 2015 Convertible Notes consisted of the following:

	2017 Convertible Note			2015 Convertible Note
Remaining life in months		83			59
Liability component:
Gross proceeds	$	289,000		$	224,500
Less: debt discount, net of amortization		(69,271	)		(39,587	)
Less: debt issuance cost, net of amortization		(5,592	)		(3,799	)
Net carrying amount	$	214,137		$	181,114
Equity component (1)	$	70,140		$	52,903

(1) Included in Additional paid-in capital on the consolidated balance sheet as of June 30, 2017.

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The following table presents the amount of interest expense recognized related to the 2017 Convertible Notes and the 2015 Convertible Notes:

	For the Three Months Ended				For the Six Months Ended
	June 30, 2017		June 30, 2016		June 30, 2017		June 30, 2016
Contractual interest coupon	$	1,850	$	1,263	$	3,113	$	2,526
Amortization of debt discount		2,567		1,592		4,238		3,159
Amortization of debt issuance costs		251		168		424		335
Total interest expense recognized	$	4,668	$	3,023	$	7,775	$	6,020

Revolving Credit Facility

In December 2016, we entered into a three-year $150.0 million secured revolving credit facility (the “Revolver”) for general corporate purposes, including financing the acquisition and conversion of 767 aircraft prior to obtaining permanent financing for the converted aircraft.  There were no amounts outstanding and we had $142.0 million of unused availability under the Revolver, based on the collateral borrowing base, as of June 30, 2017.

9. Commitments

Equipment Purchase Commitments

As of June 30, 2017, our estimated payments remaining for flight equipment purchase commitments are $176.2 million, of which $105.7 million are expected to be made during the remainder of 2017.

10. Income Taxes

Our effective income tax rates were 21.6% and 26.4% for the three months ended June 30, 2017 and 2016, respectively.  Our effective income tax rates were 22.4% and 26.8% for the six months ended June 30, 2017 and 2016, respectively.  The effective income tax rates for the three and six months ended June 30, 2017 differed from the U.S. statutory rate primarily due to nontaxable changes in the value of the Amazon Warrant liability (see Note 6 to our Financial Statements).  In addition, the effective income tax rate for the six months ended June 30, 2017 differed from the U.S. statutory rate due to the impact of the 2017 adoption of the amended accounting guidance for share-based compensation which requires that excess tax benefits associated with share-based compensation be recognized within income tax expense in our consolidated statement of operations.  The effective income tax rate for the three and six months ended June 30, 2016 differed from the U.S. federal statutory rate primarily due to nondeductible acquisition-related expenses incurred in connection with the acquisition of Southern Air (see Note 4 to our Financial Statements).  The effective rates for all periods were impacted by our assertion to indefinitely reinvest the net earnings of foreign subsidiaries outside the U.S.  For interim accounting purposes, we recognize income taxes using an estimated annual effective tax rate.

11. 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 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 (“PTCs”) related to enhanced equipment trust certificates (“EETCs”) issued by Atlas in 1998, 1999 and 2000.

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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 the Amazon Warrant is 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, 2017
	Carrying Value		Fair Value		Level 1		Level 2		Level 3
Assets
Cash and cash equivalents	$	271,655	$	271,655	$	271,655	$	-	$	-
Short-term investments		7,920		7,920		-		-		7,920
Restricted cash		11,092		11,092		11,092		-		-
Long-term investments and accrued interest		23,008		27,146		-		-		27,146
	$	313,675	$	317,813	$	282,747	$	-	$	35,066
Liabilities
Term loans and notes	$	1,719,099	$	1,799,266	$	-	$	-	$	1,799,266
Convertible notes		395,251		548,851		548,851		-		-
Amazon Warrant		87,225		87,225		-		87,225		-
	$	2,201,575	$	2,435,342	$	548,851	$	87,225	$	1,799,266

	December 31, 2016
	Carrying Value		Fair Value		Level 1		Level 2		Level 3
Assets
Cash and cash equivalents	$	123,890	$	123,890	$	123,890	$	-	$	-
Short-term investments		4,313		4,313		-		-		4,313
Restricted cash		14,360		14,360		14,360		-		-
Long-term investments and accrued interest		27,951		33,161		-		-		33,161
	$	170,514	$	175,724	$	138,250	$	-	$	37,474
Liabilities
Term loans and notes	$	1,674,013	$	1,739,744	$	-	$	-	$	1,739,744
Convertible notes		177,398		228,429		228,429		-		-
Amazon Warrant		95,775		95,775		-		95,775		-
	$	1,947,186	$	2,063,948	$	228,429	$	95,775	$	1,739,744

The following table presents the carrying value, gross unrealized gain (loss) and fair value of our long-term investments and accrued interest by contractual maturity as of:

	June 30, 2017						December 31, 2016
	Carrying Value		Gross Unrealized Gain		Fair Value		Carrying Value		Gross Unrealized Gain		Fair Value
Debt securities
Due after one but within five years	$	23,008	$	4,138	$	27,146	$	27,951	$	5,210	$	33,161
Total	$	23,008	$	4,138	$	27,146	$	27,951	$	5,210	$	33,161

12. 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

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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 from continuing operations before income taxes excluding the following: Special charges, 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.

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

	For the Three Months Ended					For the Six Months Ended
	June 30, 2017			June 30, 2016		June 30, 2017			June 30, 2016
Operating Revenue:
ACMI	$	229,179		$	211,722	$	429,873		$	394,462
Charter		255,820			202,451		499,718			404,754
Dry Leasing		28,560			25,066		55,317			53,258
Customer incentive asset amortization		(898	)		-		(1,343	)		-
Other		4,705			4,033		9,196			9,413
Total Operating Revenue	$	517,366		$	443,272	$	992,761		$	861,887

Direct Contribution:
ACMI	$	53,524		$	45,490		$	89,487		$	70,230
Charter		36,884			24,856			54,070			45,633
Dry Leasing		9,661			6,878			19,384			17,286
Total Direct Contribution for Reportable Segments		100,069			77,224			162,941			133,149
Unallocated income and expenses, net		(62,746	)		(58,503	)		(118,955	)		(106,048	)
Loss on early extinguishment of debt		-			-			-			(132	)
Unrealized gain on financial instruments		13,763			26,475			8,550			26,475
Special charge		-			-			-			(6,631	)
Transaction-related expenses		(1,396	)		(16,788	)		(2,312	)		(17,581	)
Gain on disposal of aircraft		93			-			147			-
Income from continuing operations before income taxes		49,783			28,408			50,371			29,232
Add back (subtract):
Interest income		(1,342	)		(1,405	)		(2,598	)		(3,009	)
Interest expense		24,670			20,938			46,194			42,240
Capitalized interest		(1,931	)		(690	)		(3,711	)		(1,047	)
Loss on early extinguishment of debt		-			-			-			132
Unrealized gain on financial instruments		(13,763	)		(26,475	)		(8,550	)		(26,475	)
Other expense (income)		1,061			48			809			(192	)
Operating Income	$	58,478		$	20,824		$	82,515		$	40,881

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 (the “AMC”), Polar and DHL (see Note 3 for further discussion regarding Polar).  No other customer accounted for more than 10.0% of our Total Operating Revenue.  Revenue from the AMC was $140.7 million for the three months ended June 30, 2017 and $119.6 million for the three months ended June 30, 2016.  Revenue from the AMC was $272.6 million for the six months ended June 30, 2017 and $230.7 million for the six months ended June 30, 2016.  Revenue from DHL was $61.6 million for the three months ended June 30, 2017 and $47.0 million for

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the three months ended June 30, 2016.  Revenue from DHL was $116.5 million for the six months ended June 30, 2017 and $70.6 million for the six months ended June 30, 2016.  We have not experienced any credit issues with either of these customers.

13. 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 to this process, once a seniority list is presented to us by the unions, it triggers an agreed-upon time frame 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 pre-mediation investigation on the IBT’s Atlas application in June 2016, which is currently pending (along with the IBT’s Southern Air application).  Due to a lack of meaningful progress in such merger discussions, in February 2017, we 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. While this lawsuit is pending in the Southern District Court of New York, the Company and the IBT have reached an interim agreement on a process to proceed with negotiations for a new joint CBA.  These negotiations commenced on July 6, 2017.

We are subject to risks of work interruption or stoppage as permitted by the Railway Labor Act of 1926 (the “Railway Labor Act”) and may incur additional administrative expenses associated with union representation of our employees.

Matters Related to Alleged Pricing Practices

The Company and Polar Air Cargo, LLC (“Old Polar”), a consolidated subsidiary, were named defendants, along with a number of other cargo carriers, in several class actions in the U.S. arising from allegations about the pricing practices of Old Polar and a number of air cargo carriers.  These actions were all centralized in the U.S. District Court for the Eastern District of New York.  Polar was later joined as an additional defendant.  The consolidated complaint alleged, among other things, that the defendants, including the Company and Old Polar, manipulated the market price for air cargo services sold domestically and abroad through the use of surcharges, in violation of U.S., state, and European Union antitrust laws.  The suit sought treble damages and attorneys’ fees.

On January 7, 2016, the Company, Old Polar, and Polar entered into a settlement agreement to settle all claims by participating class members against the Company, Old Polar and Polar. The Company, Polar, and Old Polar deny any wrongdoing, and there is no admission of any wrongdoing in the settlement agreement.  Pursuant to the settlement agreement, the Company, Old Polar and Polar have agreed to make installment payments over three years to settle the plaintiffs’ claims, with payments of $35.0 million paid in January 2016 and 2017, and $30.0 million due on or before January 15, 2018.  The U.S. District Court for the Eastern District of New York issued an order granting preliminary approval of the settlement on January 12, 2016.  On October 6, 2016, the final judgment was issued and the settlement was approved.

In the United Kingdom, several groups of named claimants have brought suit against British Airways in connection with the same alleged pricing practices at issue in the proceedings described above and are seeking damages allegedly arising from that conduct.  British Airways has filed claims in the lawsuit against Old Polar and a number of air cargo carriers for contribution should British Airways be found liable to claimants.  Old Polar’s formal statement of defense was filed on March 2, 2015.  On October 14, 2015, the U.K. Court of Appeal released decisions favorable to the defendant and contributory defendants on two matters under appeal.  Permission was sought to appeal the U.K. Court of Appeal's decisions to the U.K. Supreme Court.  Permission was denied.  In December 2015, certain claimants settled with British Airways removing a significant portion of the claim against British Airways and therefore reducing the potential contribution required by the other airlines, including Old Polar.  On December 16, 2015, the European General Court released decisions annulling decisions that the European Commission made against the majority of the air cargo carriers.  The European Commission did not appeal the General Court decision but has, in early 2017, reissued a revised decision to which Old Polar is, again, not an addressee.  On April 13, 2017, Old Polar and claimants represented by Hausfeld & Co. LLP (the “Hausfeld Claimants”) entered into a bilateral

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settlement agreement in relation to the English proceedings (the “Settlement Agreement”).  The Settlement Agreement contains a mechanism by which the Hausfeld Claimants will release Old Polar and remove from the English proceedings all claims for damages alleged by the Hausfeld Claimants to be attributable to air cargo purchases from Old Polar (and each of Old Polar’s parents, subsidiaries, affiliates, predecessors, successors, agents and assignees).  The amount of the settlement, which is tax deductible and was previously accrued for, was paid during the second quarter of 2017 and did not have a material adverse impact on the Company’s financial condition, results of operations or cash flows.

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 the same pricing practices at issue in the proceedings described above.  In response, British Airways, KLM, Martinair, Air France and Lufthansa filed third-party indemnification lawsuits against Old Polar and Polar seeking indemnification in the event the defendants are found to be liable in the main proceedings.  Old Polar and Polar entered their initial court appearances on September 30, 2015.  Various procedural issues are undergoing court review.  Like the U.K. proceedings, the Netherlands proceedings are likely to be affected by the European Commission’s revised decision.  We are unable to reasonably predict the outcome of the litigation. If the Company, Old Polar or Polar were to incur an unfavorable outcome in connection with this proceeding, 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 $9.2 million in aggregate based on June 30, 2017 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.  Furthermore, we may seek appropriate indemnity from the shipper in each claim as may be feasible.  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.  As required to defend such claims, we have made deposits pending resolution of these matters.  The balance was $5.0 million as of June 30, 2017 and December 31, 2016, 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.

Accruals

As of June 30, 2017, the Company had an accrual of $30.0 million related to the U.S. class action settlement that was recognized in 2015.

Other

We have certain other contingencies incident to the ordinary course of business.  Management believes that the ultimate disposition of such other contingencies is not expected to materially affect our financial condition, results of operations or cash flows.

14. 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.  Anti-dilutive shares related to warrants and stock options that were out of the money and excluded were 7.8 million for the three and six months ended June 30, 2017 and were 3.0 million for the three and six months ended June 30, 2016.

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The calculations of basic and diluted EPS were as follows:

	For the Three Months Ended						For the Six Months Ended
Numerator:	June 30, 2017			June 30, 2016			June 30, 2017			June 30, 2016
Income from continuing operations, net of taxes	$	39,044		$	20,919		$	39,079		$	21,390
Less: Unrealized gain on financial instruments, net of tax		(14,293	)		(27,513	)		(8,869	)		(27,513	)
Diluted income (loss) from continuing operations, net of tax	$	24,751		$	(6,594	)	$	30,210		$	(6,123	)
Denominator:
Basic EPS weighted average shares outstanding		25,257			24,812			25,210			24,761
Effect of dilutive warrant		1,081			273			1,096			137
Effect of dilutive stock options and restricted stock		453			140			517			138
Diluted EPS weighted average shares outstanding		26,791			25,225			26,823			25,036
Earnings (loss) per share from continuing operations:
Basic	$	1.55		$	0.84		$	1.55		$	0.86
Diluted	$	0.92		$	(0.26	)	$	1.13		$	(0.24	)
Loss per share from discontinued operations:
Basic	$	(0.00	)	$	(0.01	)	$	(0.04	)	$	(0.01	)
Diluted	$	(0.00	)	$	(0.01	)	$	(0.03	)	$	(0.01	)
Earnings (loss) per share:
Basic	$	1.54		$	0.83		$	1.51		$	0.85
Diluted	$	0.92		$	(0.28	)	$	1.09		$	(0.26	)

The calculation of EPS does not include restricted share units and warrants in which performance or market conditions were not satisfied of 7.6 million for the three and six months ended June 30, 2017 and 7.9 million for three and six months ended June 30, 2016.

15. Accumulated Other Comprehensive Income (Loss)

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

	Interest Rate			ForeignCurrency
	Derivatives			Translation		Total
Balance as of December 31, 2015	$	(6,072	)	$	9	$	(6,063	)
Reclassification to interest expense		895			-		895
Tax effect		(347	)		-		(347	)
Balance as of June 30, 2016	$	(5,524	)	$	9	$	(5,515	)
Balance as of December 31, 2016	$	(5,002	)	$	9	$	(4,993	)
Reclassification to interest expense		820			-		820
Tax effect		(318	)		-		(318	)
Balance as of June 30, 2017	$	(4,500	)	$	9	$	(4,491	)

Interest Rate Derivatives

As of June 30, 2017, there was $7.3 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 $0.4 million for the three months ended June 30, 2017 and 2016, respectively.  Net realized losses reclassified into earnings were $0.8 million and $0.9 million for the six months ended June 30, 2017 and 2016, respectively.  Net realized losses expected to be reclassified into earnings within the next 12 months are $1.6 million as of June 30, 2017.

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16. Subsequent Events

In July 2017, we borrowed $12.5 million related to the purchase of a 767-300 aircraft under a sixty-month term loan (the “Eighth 2017 Term Loan”).  The Eighth 2017 Term Loan, which is secured by a mortgage against the aircraft, contains customary covenants and events of default and accrues interest at a fixed rate of 3.62%, with principal and interest payable monthly.

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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 2016 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	High-level or “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	High-level or “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, which are the most extensive in scope and are primarily based on time or usage intervals, 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 applications.  We provide unique value to our customers by giving them access to highly reliable new 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 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 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 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;

• Aggressively managing our fleet with a focus on leading-edge aircraft;

• Driving significant and ongoing productivity improvements;

• Selectively pursuing and evaluating future acquisitions and alliances; while

• Appropriately managing capital allocation.

See “Business Overview” and “Business Strategy” in our 2016 Annual Report on Form 10-K for additional information.

Business Developments

Our ACMI results for the first half of 2017, compared with 2016, were impacted by the following events:

• In February 2016, we began CMI flying for DHL a 767-300 freighter aircraft, Dry Leased from Titan, in DHL’s North American network,increasing the number of freighter aircraft in CMI service for DHL to thirteen.

• In April 2016, we acquired Southern Air, which currently operates five 777-200LRF and five 737-400F aircraft under CMI agreements for DHL.

• Between August 2016 and June 2017, we began CMI flying for Amazon the first six of 20 Boeing 767-300 freighter aircraft Dry Leased from Titan with the remainder expected to be placed in service by the end of 2018.

• During the first quarter of 2017, we began flying a 747-400 freighter for Nippon Cargo Airlines on transpacific routes.

• During the first quarter of 2017, we began flying a 747-400 freighter for Asiana Cargo on transpacific routes.

• During the second quarter of 2017, we began ACMI flying two 747-8F aircraft for Cathay Pacific Cargo to supplement capacity on its existing route network.

• During the second quarter of 2017, we began ACMI flying a 747-400 freighter for Yangtze River Airlines on routes between China and the United States.

During the third quarter of 2017, we entered into an ACMI agreement with Hong Kong Air Cargo to operate three 747-400 freighter aircraft.  We expect to begin flying the first aircraft in September 2017 on routes between Asia and the United States.  The other two aircraft are expected to be placed in service during 2018.

Charter results for the first half of 2017 were impacted by increased commercial cargo demand, increased cargo and passenger demand from the AMC, higher commercial cargo Yields and the temporary redeployment of 747-8F aircraft from the ACMI segment, partially offset by lower cargo and passenger rates from the AMC.

In February 2016, we began Dry Leasing one 767-300 converted freighter aircraft to DHL on a long-term basis.  In March 2016, we also Dry Leased a 737-800 passenger aircraft on a long-term basis to a customer following its scheduled return.  As described above, between August 2016 and June 2017, we began Dry Leasing six 767-300 converted freighter aircraft to Amazon on a long-term basis.

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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, 2017 and 2016

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	2017			2016			Inc/(Dec)
ACMI*
747-8F Cargo		7.6			7.8			(0.2	)
747-400 Cargo		14.1			13.5			0.6
747-400 Dreamlifter		3.2			3.2			-
777-200 Cargo		5.0			4.7			0.3
767-300 Cargo		8.2			4.0			4.2
767-200 Cargo		9.0			9.0			-
737-400 Cargo		5.0			4.7			0.3
747-400 Passenger		1.0			1.0			-
767-200 Passenger		1.0			1.0			-
Total		54.1			48.9			5.2
Charter
747-8F Cargo		2.3			2.1			0.2
747-400 Cargo		9.7			9.2			0.5
747-400 Passenger		2.0			2.0			-
767-300 Passenger		4.7			3.3			1.4
Total		18.7			16.6			2.1
Dry Leasing
777-200 Cargo		6.0			6.0			-
767-300 Cargo		5.8			2.0			3.8
757-200 Cargo		1.0			1.0			-
737-300 Cargo		1.0			1.0			-
737-800 Passenger		1.0			1.0			-
Total		14.8			11.0			3.8
Less: Aircraft Dry Leased to CMI customers		(5.8	)		(2.0	)		(3.8	)
Total Operating Average Aircraft Equivalents		81.8			74.5			7.3

* ACMI average fleet excludes spare aircraft provided by CMI customers.

Block Hours	2017		2016		Inc/(Dec)		% Change
Total Block Hours**		61,288		53,312		7,976		15.0	%

** 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):

	2017			2016		Inc/(Dec)			% Change
Operating Revenue
ACMI	$	229,179		$	211,722	$	17,457			8.2	%
Charter		255,820			202,451		53,369			26.4	%
Dry Leasing		28,560			25,066		3,494			13.9	%
Customer incentive asset amortization		(898	)		-		(898	)	NM
Other		4,705			4,033		672			16.7	%
Total Operating Revenue	$	517,366		$	443,272	$	74,094			16.7	%

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

ACMI

	2017		2016		Inc/(Dec)			% Change
ACMI Block Hours		44,819		39,862		4,957			12.4	%
ACMI Revenue Per Block Hour	$	5,113	$	5,311	$	(198	)		(3.7	)%

ACMI revenue increased $17.5 million, or 8.2%, primarily due to increased flying.  The increase in Block Hours was primarily driven by the startup of 767 flying for Amazon and 747-400 flying for Nippon Cargo Airlines, as well as higher aircraft utilization.  Revenue per Block Hour decreased primarily due to the impact of increased 767 and 747-400 CMI flying.

Charter

	2017		2016		Inc/(Dec)			% Change
Charter Block Hours:
Cargo		11,288		8,671		2,617			30.2	%
Passenger		4,611		4,343		268			6.2	%
Total		15,899		13,014		2,885			22.2	%
Charter Revenue Per Block Hour:
Cargo	$	16,119	$	14,848	$	1,271			8.6	%
Passenger	$	16,020	$	16,971	$	(951	)		(5.6	%)
Charter	$	16,090	$	15,556	$	534			3.4	%

Charter revenue increased $53.4 million, or 26.4%, primarily due to an increase in Block Hours and an increase in Revenue per Block Hour.  The increase in Charter Block Hours was primarily driven by increased commercial cargo demand and increased cargo and passenger demand from the AMC.  The increase in Revenue per Block Hour primarily reflects higher Yields for commercial cargo, higher fuel prices and the impact on revenue from subcontracted Charter flights with no associated Block Hours, partially offset by lower cargo and passenger rates from the AMC.  

Dry Leasing

Dry Leasing revenue increased $3.5 million, or 13.9%, primarily due to the placement of six 767-300 converted freighter aircraft with Amazon between August 2016 and June 2017.

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Operating Expenses

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

	2017			2016		Inc/(Dec)			% Change
Operating Expenses
Salaries, wages and benefits	$	111,488		$	101,542	$	9,946			9.8	%
Aircraft fuel		83,486			61,353		22,133			36.1	%
Maintenance, materials and repairs		64,769			55,435		9,334			16.8	%
Depreciation and amortization		40,986			37,208		3,778			10.2	%
Aircraft rent		33,792			36,723		(2,931	)		(8.0	)%
Travel		34,891			32,010		2,881			9.0	%
Passenger and ground handling services		23,573			22,019		1,554			7.1	%
Navigation fees, landing fees and other rent		25,255			18,777		6,478			34.5	%
Gain on disposal of aircraft		(93	)		-		93		NM
Transaction-related expenses		1,396			16,788		(15,392	)		(91.7	)%
Other		39,345			40,593		(1,248	)		(3.1	)%
Total Operating Expenses	$	458,888		$	422,448

Salaries, wages and benefits increased $9.9 million, or 9.8%, primarily driven by increased flying and growth initiatives, partially offset by lower costs related to crew training.

Aircraft fuel increased $22.1 million, or 36.1%, primarily due to increased fuel consumption reflecting the increase in Charter Block Hours operated and an increase 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:

	2017		2016		Inc/(Dec)		% Change
Average fuel cost per gallon	$	1.85	$	1.68	$	0.17		10.1	%
Fuel gallons consumed (000s)		45,229		36,585		8,644		23.6	%

Maintenance, materials and repairs increased by $9.3 million, or 16.8%, primarily reflecting $7.6 million of increased Line Maintenance expense due to increased flying.  The higher Line Maintenance primarily reflected increases of $3.6 million for 767 aircraft, $2.1 million for 747-8F aircraft and $1.6 million for 747-400 aircraft.  Heavy Maintenance expense on 747-400 aircraft increased $3.3 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 747-8F aircraft decreased $1.8 million primarily due to a decrease in the number of C Checks.  Heavy airframe maintenance checks and engine overhauls impacting Maintenance, materials and repairs for the three months ended June 30 were:

Heavy Maintenance Events	2017		2016		Inc/(Dec)
747-8F C Checks		-		2		(2	)
747-400 C Checks		4		3		1
767 C Checks		1		-		1
747-400 D Checks		1		2		(1	)
CF6-80 engine overhauls		1		1		-

Depreciation and amortization increased $3.8 million, or 10.2%, primarily due to additional aircraft operating in 2017.

Aircraft rent decreased $2.9 million, or 8.0%, primarily due to the amendment and extension of a lease for a 747-400 freighter aircraft to a lower monthly lease rate (see Note 8 to our Financial Statements) and a reduction in the number of spare engines leased.

Travel increased $2.9 million, or 9.0%, primarily due to increased flying, partially offset by lower rates for crewmember travel.

Passenger and ground handling services increased $1.6 million, or 7.1%, primarily due to increased Charter flying.

Navigation fees, landing fees and other rent increased $6.5 million, or 34.5%, primarily due to increased flying and an increase in purchased capacity from the subcontracting of certain Charter flights.

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Transaction-related expenses in 2017 relate to the Southern Air acquisition, which primarily include professional fees and integration costs. Transaction-related expenses in 2016 relate to the Southern Acquisition and our transaction with Amazon and primarily include: compensation costs, including employee termination benefits; professional fees; and integration costs (see Notes 4 and 6 to our Financial Statements).

Other decreased $1.2 million, or 3.1%, primarily due to an accrual for legal matters in 2016 (see Note 13 to our Financial Statements), partially offset by increased commission expense on higher revenue from the AMC and the impact of growth initiatives.

Non-operating Expenses (Income)

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

	2017			2016			Inc/(Dec)			% Change
Non-operating Expenses (Income)
Interest income	$	(1,342	)	$	(1,405	)	$	(63	)		(4.5	)%
Interest expense		24,670			20,938			3,732			17.8	%
Capitalized interest		(1,931	)		(690	)		1,241			179.9	%
Unrealized gain on financial instruments		(13,763	)		(26,475	)		(12,712	)		(48.0	)%
Other expense (income)		1,061			48			1,013		NM

Interest expense increased $3.7 million, or 17.8%, primarily due to the issuance of the 2017 Convertible Notes and the financing of 767-300 aircraft purchases and conversions.

Capitalized interest increased $1.2 million, or 179.9%, primarily due to an increase in the number of 767-300 aircraft undergoing passenger-to-freighter conversion.

Unrealized gain on financial instruments represents the change in fair value of the Amazon Warrant (see Note 6 to our Financial Statements).

Income taxes.  Our effective income tax rates were 21.6% and 26.4% for the three months ended June 30, 2017 and 2016, respectively.  The effective income tax rate for the three months ended June 30, 2017 differed from the U.S. statutory rate primarily due to nontaxable changes in the value of the Amazon Warrant liability (see Note 6 to our Financial Statements).  The effective income tax rate for the three months ended June 30, 2016 differed from the U.S. federal statutory rate primarily due to nondeductible acquisition-related expenses incurred in connection with the acquisition of Southern Air (see Note 4 to our Financial Statements).  The effective rates for both periods were impacted by our assertion to indefinitely reinvest the net earnings of foreign subsidiaries outside the U.S.

Segments

The following table compares the Direct Contribution for our reportable segments for the three months ended June 30 (see Note 12 to our Financial Statements for the reconciliation to Operating income) (in thousands):

	2017		2016		Inc/(Dec)		% Change
Direct Contribution:
ACMI	$	53,524	$	45,490	$	8,034		17.7	%
Charter		36,884		24,856		12,028		48.4	%
Dry Leasing		9,661		6,878		2,783		40.5	%
Total Direct Contribution	$	100,069	$	77,224	$	22,845		29.6	%
Unallocated income and expenses, net	$	62,746	$	58,503	$	4,243		7.3	%

ACMI Segment

ACMI Direct Contribution increased $8.0 million, or 17.7%, primarily due to increased flying, partially offset by higher Heavy Maintenance costs.

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Charter Segment

Charter Direct Contribution increased $12.0 million, or 48.4%, primarily due to higher commercial cargo Yields, lower costs related to crew training, increased commercial cargo demand and increased cargo and passenger demand from the AMC.  Partially offsetting these items were higher Heavy Maintenance costs and lower cargo and passenger rates from the AMC.

Dry Leasing Segment

Dry Leasing Direct Contribution increased $2.8 million, or 40.5%, primarily related to the placement of six 767-300 converted freighter aircraft with Amazon between August 2016 and June 2017, and lower interest expense due to the scheduled repayment of debt related to Dry Leased 777-200LRF aircraft.

Unallocated income and expenses, net

Unallocated income and expenses, net increased $4.2 million, or 7.3%, primarily due to unallocated interest expense, growth initiatives and amortization of the Amazon customer incentive asset, partially offset by an accrual for legal matters in 2016.

Six Months Ended June 30, 2017 and 2016

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	2017			2016			Inc/(Dec)
ACMI*
747-8F Cargo		7.3			8.3			(1.0	)
747-400 Cargo		13.4			13.1			0.3
747-400 Dreamlifter		3.1			3.0			0.1
777-200 Cargo		5.0			2.3			2.7
767-300 Cargo		7.0			3.7			3.3
767-200 Cargo		9.0			9.0			-
737-400 Cargo		5.0			2.3			2.7
747-400 Passenger		1.0			1.0			-
767-200 Passenger		1.0			1.0			-
Total		51.8			43.7			8.1
Charter
747-8F Cargo		2.6			1.6			1.0
747-400 Cargo		10.4			9.6			0.8
747-400 Passenger		2.0			2.0			-
767-300 Passenger		4.8			3.1			1.7
Total		19.8			16.3			3.5
Dry Leasing
777-200 Cargo		6.0			6.0			-
767-300 Cargo		4.7			1.7			3.0
757-200 Cargo		1.0			1.0			-
737-300 Cargo		1.0			1.0			-
737-800 Passenger		1.0			1.0			-
Total		13.7			10.7			3.0
Less: Aircraft Dry Leased to CMI customers		(4.7	)		(1.7	)		(3.0	)
Total Operating Average Aircraft Equivalents		80.6			69.0			11.6

* ACMI average fleet excludes spare aircraft provided by CMI customers.

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Block Hours	2017		2016		Inc/(Dec)		% Change
Total Block Hours**		116,404		95,462		20,942		21.9	%

** Includes ACMI, Charter and other Block Hours.

Operating Revenue

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

	2017			2016		Inc/(Dec)			% Change
Operating Revenue
ACMI	$	429,873		$	394,462	$	35,411			9.0	%
Charter		499,718			404,754		94,964			23.5	%
Dry Leasing		55,317			53,258		2,059			3.9	%
Customer incentive asset amortization		(1,343	)		-		(1,343	)	NM
Other		9,196			9,413		(217	)		(2.3	)%
Total Operating Revenue	$	992,761		$	861,887	$	130,874			15.2	%

ACMI

	2017		2016		Inc/(Dec)			% Change
ACMI Block Hours		83,735		69,391		14,344			20.7	%
ACMI Revenue Per Block Hour	$	5,134	$	5,685	$	(551	)		(9.7	)%

ACMI revenue increased $35.4 million, or 9.0%, primarily due to increased flying.  The increase in Block Hours reflects the impact from the Southern Air acquisition, the startup of 767 flying for Amazon and 747-400 flying for Nippon Cargo Airlines, as well as higher aircraft utilization.  Partially offsetting these items was the temporary redeployment of 747-8F aircraft to the Charter segment during the first quarter of 2017.  Revenue per Block Hour decreased primarily due to the impact of 777-200 and 737-400 CMI flying from the Southern Air acquisition, increased 767 and 747-400 CMI flying and the temporary redeployment of 747-8F aircraft to Charter during the first quarter of 2017.

Charter

	2017		2016		Inc/(Dec)			% Change
Charter Block Hours:
Cargo		22,228		16,901		5,327			31.5	%
Passenger		9,456		8,278		1,178			14.2	%
Total		31,684		25,179		6,505			25.8	%
Charter Revenue Per Block Hour:
Cargo	$	15,710	$	15,430	$	280			1.8	%
Passenger	$	15,918	$	17,393	$	(1,475	)		(8.5	%)
Charter	$	15,772	$	16,075	$	(303	)		(1.9	%)

Charter revenue increased $95.0 million, or 23.5%, primarily due to an increase in Block Hours.  The increase in Charter Block Hours was primarily driven by increased commercial cargo demand, increased cargo and passenger demand from the AMC and the temporary redeployment of 747-8F aircraft from the ACMI segment during the first quarter of 2017.  Revenue per Block Hour decreased primarily due to lower cargo and passenger rates from the AMC, partially offset by higher Yields for commercial cargo, higher fuel prices and the impact on revenue from subcontracted Charter flights with no associated Block Hours.  

Dry Leasing

Dry Leasing revenue increased $2.1 million, or 3.9%, primarily due to the placement of six 767-300 converted freighter aircraft with Amazon between August 2016 and June 2017, and one 767-300 converted freighter aircraft with DHL in February 2016.  Partially offsetting these items was lower revenue from maintenance payments received related to the scheduled return of an aircraft during the first half of 2016.  There were no aircraft returned during the first half of 2017.  Revenue from maintenance payments is based on the maintenance condition of the aircraft at the end of the lease.

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Operating Expenses

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

	2017			2016		Inc/(Dec)			% Change
Operating Expenses
Salaries, wages and benefits	$	215,575		$	195,387	$	20,188			10.3	%
Aircraft fuel		165,918			124,573		41,345			33.2	%
Maintenance, materials and repairs		137,585			112,459		25,126			22.3	%
Depreciation and amortization		78,880			72,213		6,667			9.2	%
Aircraft rent		69,865			73,760		(3,895	)		(5.3	)%
Travel		67,249			62,333		4,916			7.9	%
Passenger and ground handling services		48,696			42,898		5,798			13.5	%
Navigation fees, landing fees and other rent		43,790			40,751		3,039			7.5	%
Gain on disposal of aircraft		(147	)		-		147		NM
Special charge		-			6,631		(6,631	)	NM
Transaction-related expenses		2,312			17,581		(15,269	)		(86.8	)%
Other		80,523			72,420		8,103			11.2	%
Total Operating Expenses	$	910,246		$	821,006

Salaries, wages and benefits increased $20.2 million, or 10.3%, primarily driven by the impact of the Southern Air acquisition, growth initiatives and increased flying, partially offset by lower costs related to crew training.

Aircraft fuel increased $41.3 million, or 33.2%, primarily due to increased fuel consumption reflecting the increase in Charter Block Hours operated and an increase 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 six months ended June 30 were:

	2017		2016		Inc/(Dec)		% Change
Average fuel cost per gallon	$	1.86	$	1.74	$	0.12		6.9	%
Fuel gallons consumed (000s)		89,156		71,530		17,626		24.6	%

Maintenance, materials and repairs increased by $25.1 million, or 22.3%, primarily reflecting $17.7 million of higher Line Maintenance expense due to increased flying and the Southern Air acquisition.  The higher Line Maintenance primarily reflected increases of $6.1 million for 767 aircraft, $5.0 million for 747-400 aircraft and $3.5 million for 747-8F aircraft.  Heavy Maintenance expense on 747-400 aircraft increased $15.1 million primarily due to an increase in the number of D Checks, engine overhauls and additional repairs performed, partially offset by a decrease in the number of C Checks.  Heavy Maintenance expense on 747-8F aircraft decreased $6.6 million primarily due to a decrease in unscheduled engine repairs.  Non-heavy Maintenance on 747-400 aircraft decreased $3.6 million as a result of fewer events.  Heavy airframe maintenance checks and engine overhauls impacting Maintenance, materials and repairs for the six months ended June 30 were:

Heavy Maintenance Events	2017		2016		Inc/(Dec)
747-8F C Checks		2		2		-
747-400 C Checks		6		7		(1	)
767 C Checks		2		1		1
747-400 D Checks		5		3		2
CF6-80 engine overhauls		4		3		1

Depreciation and amortization increased $6.7 million, or 9.2%, primarily due to additional aircraft operating in 2017.

Aircraft rent decreased $3.9 million, or 5.3%, primarily due to the amendment and extension of a lease for a 747-400 freighter aircraft to a lower monthly lease rate (see Note 8 to our Financial Statements) and a reduction in the number of spare engines leased.

Travel increased $4.9 million, or 7.9%, primarily due to the impact of the Southern Air acquisition and increased flying, partially offset by lower rates for crewmember travel.

Passenger and ground handling services increased $5.8 million, or 13.5%, primarily due to increased Charter flying.

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Navigation fees, landing fees and other rent increased $3.0 million, or 7.5%, primarily due to increased flying, partially offset by a decrease in purchased capacity from the subcontracting of certain Charter flights.

Special charge in 2016 primarily represents a $6.5 million loss on engines held for sale (see Note 5 to our Financial Statements).  We may sell additional flight equipment, which could result in additional charges in future periods.  

Transaction-related expenses in 2017 relate to the Southern Air acquisition, which primarily include professional fees and integration costs.  Transaction-related expenses in 2016 relate to the Southern Acquisition and our transaction with Amazon and primarily include: compensation costs, including employee termination benefits; professional fees; and integration costs (see Notes 4 and 6 to our Financial Statements).

Other increased $8.1 million, or 11.2%, primarily due to increased commission expense on higher revenue from the AMC, the impact of the Southern Air acquisition and other growth initiatives, partially offset by an accrual for legal matters in 2016 (see Note 13 to our Financial Statements).

Non-operating Expenses (Income)

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

	2017			2016			Inc/(Dec)			% Change
Non-operating Expenses (Income)
Interest income	$	(2,598	)	$	(3,009	)	$	(411	)		(13.7	)%
Interest expense		46,194			42,240			3,954			9.4	%
Capitalized interest		(3,711	)		(1,047	)		2,664		NM
Loss on early extinguishment of debt		-			132			(132	)	NM
Unrealized gain on financial instruments		(8,550	)		(26,475	)		(17,925	)		(67.7	)%
Other expense (income)		809			(192	)		(1,001	)	NM

Interest expense increased $4.0 million, or 9.4%, primarily due to the issuance of the 2017 Convertible Notes and the financing of 767-300 aircraft purchases and conversions.

Capitalized interest increased $2.7 million, primarily due to an increase in the number of 767-300 aircraft undergoing passenger-to-freighter conversion.

Unrealized gain on financial instruments represents the change in fair value of the Amazon Warrant (see Note 6 to our Financial Statements).

Income taxes.  Our effective income tax rates were 22.4% and 26.8% for the six months ended June 30, 2017 and 2016, respectively.  The effective income tax rate for the six months ended June 30, 2017 differed from the U.S. statutory rate primarily due to nontaxable changes in the value of the Amazon Warrant liability (see Note 6 to our Financial Statements) and by the impact of the 2017 adoption of the amended accounting guidance for share-based compensation which requires that excess tax benefits associated with share-based compensation be recognized within income tax expense in our consolidated statement of operations.  The effective income tax rate for the six months ended June 30, 2016 differed from the U.S. federal statutory rate primarily due to nondeductible acquisition-related expenses incurred in connection with the acquisition of Southern Air (see Note 4 to our Financial Statements).  The effective rates for both periods were impacted by our assertion to indefinitely reinvest the net earnings of foreign subsidiaries outside the U.S.

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Segments

The following table compares the Direct Contribution for our reportable segments for the six months ended June 30 (see Note 12 to our Financial Statements for the reconciliation to Operating income) (in thousands):

	2017		2016		Inc/(Dec)		% Change
Direct Contribution:
ACMI	$	89,487	$	70,230	$	19,257		27.4	%
Charter		54,070		45,633		8,437		18.5	%
Dry Leasing		19,384		17,286		2,098		12.1	%
Total Direct Contribution	$	162,941	$	133,149	$	29,792		22.4	%
Unallocated income and expenses, net	$	118,955	$	106,048	$	12,907		12.2	%

ACMI Segment

ACMI Direct Contribution increased $19.3 million, or 27.4%, primarily due to the Southern Air acquisition, increased flying and lower costs related to crew training.  Partially offsetting these items were higher Heavy Maintenance costs and the temporary redeployment of 747-8F aircraft to the Charter segment during the first quarter of 2017.

Charter Segment

Charter Direct Contribution increased $8.4 million, or 18.5%, primarily due to increased commercial cargo demand, increased cargo and passenger demand from the AMC, lower costs related to crew training and higher Yields from commercial cargo.  Partially offsetting these items were higher Heavy Maintenance costs and lower cargo and passenger rates from the AMC.

Dry Leasing Segment

Dry Leasing Direct Contribution increased $2.1 million, or 12.1%, primarily due to the placement of six 767-300 converted freighter aircraft with Amazon between August 2016 and June 2017, and one 767-300 converted freighter aircraft with DHL in February 2016, as well as lower interest expense due to the scheduled repayment of debt related to Dry Leased 777-200LRF aircraft.  Partially offsetting these items were maintenance payments received related to the scheduled return of an aircraft during the first half of 2016.  There were no aircraft returned during the first half of 2017.

Unallocated income and expenses, net

Unallocated income and expenses, net increased $12.9 million, or 12.2%, primarily due to the impact of the Southern Air acquisition, unallocated interest expense, growth initiatives and amortization of the Amazon customer incentive asset, partially offset by an accrual for legal matters in 2016.

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 and Adjusted Diluted EPS from continuing operations, net of taxes, 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, 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.  In addition, management’s incentive compensation will be determined, in part, by using Adjusted Income from continuing operations, net of taxes. 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, 2017			June 30, 2016			Percent Change
Income from continuing operations, net of taxes	$	39,044		$	20,919			86.6	%
Impact from:
Gain on disposal of aircraft		(93	)		-
Transaction-related expenses		1,396			16,788
Accrual for legal matters and professional fees		263			6,697
Noncash expenses and income, net (a)		3,651			1,882
Unrealized gain on financial instruments (b)		(13,763	)		(26,475	)
Income tax effect of reconciling items		(1,383	)		351
Adjusted income from continuing operations, net of taxes	$	29,115		$	20,162			44.4	%
Weighted average diluted shares outstanding		26,791			25,225
Adjusted Diluted EPS from continuing operations, net of taxes	$	1.09		$	0.80			36.3	%

	For the Six Months Ended
	June 30, 2017			June 30, 2016			Percent Change
Income from continuing operations, net of taxes	$	39,079		$	21,390			82.7	%
Impact from:
Gain on disposal of aircraft		(147	)		-
Special charge		-			6,631
Transaction-related expenses		2,311			17,581
Accrual for legal matters and professional fees		337			6,987
Noncash expenses and income, net (a)		6,063			3,726
Charges associated with refinancing debt		-			132
Unrealized gain on financial instruments (b)		(8,550	)		(26,475	)
Income tax effect of reconciling items		(1,704	)		(2,066	)
Adjusted income from continuing operations, net of taxes	$	37,389		$	27,906			34.0	%
Weighted average diluted shares outstanding		26,823			25,036
Adjusted Diluted EPS from continuing operations, net of taxes	$	1.39		$	1.11			25.2	%

(a) Noncash expenses and income, net in 2017 are primarily related to amortization of debt discount on the convertible notes (see Note 8 to our Financial Statements) and amortization of the customer incentive asset related to the Amazon Warrant (see Note 6 to our Financial Statements).  Noncash expenses and income, net in 2016 are primarily related to amortization of debt discount on the convertible notes (see Note 8 to our Financial Statements).

(b) Unrealized gain on financial instruments related to the Amazon Warrant (see Note 6 to our Financial Statements).

Liquidity and Capital Resources

The most significant liquidity events during the first half of 2017 were as follows:

Debt Transactions

In May 2017, we issued $289.0 million of 2017 Convertible Notes with a cash coupon of 1.875%.  In May 2017, we used the majority of the proceeds to repay $150.0 million then outstanding under the Revolver.

In June 2017, we borrowed $18.7 million related to GEnx engine performance upgrade kits and overhauls under an unsecured term loan at a fixed interest rate of 2.17%.

During the second quarter of 2017, we borrowed an aggregate of $127.6 million through six separate term loans related to the purchase and conversion of 767-300 aircraft at fixed rates ranging from 3.02% to 3.16%.

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Operating Activities. Net cash provided by operating activities for the first half of 2017 was $112.8 million, compared with $47.2 million for 2016.  The increase primarily reflects an increase in earnings, excluding noncash items, and changes in the timing of working capital.

Investing Activities. Net cash used for investing activities was $270.0 million for the first half of 2017, consisting primarily of $226.8 million of payments for flight equipment and modifications, and $45.2 million of core capital expenditures, excluding flight equipment.  Payments for flight equipment and modifications during the first half of 2017 were primarily related to the purchase of 767-300 passenger aircraft and related freighter conversion costs, spare engines and GEnx engine performance upgrade kits.  All capital expenditures for 2017 were funded through working capital and the term loans discussed above.  Net cash used for investing activities was $313.4 million for the first half of 2016, consisting primarily of $186.2 million of purchase deposits and payments for flight equipment, $107.5 million related to the Southern Acquisition, and $27.2 million of core capital expenditures, excluding flight equipment.  Partially offsetting these investing activities were $7.5 million of proceeds from investments.

Financing Activities. Net cash provided by financing activities was $301.7 million for the first half of 2017, which primarily reflected proceeds from debt issuance of $435.3 million, $38.1 million from the sale of convertible note warrants and $18.1 million of customer maintenance reserves and deposits received, partially offset by $93.4 million of payments on debt obligations and $70.1 million for the purchase of convertible note hedges.  Net cash used for financing activities was $4.4 million for the first half of 2016, which primarily reflected $91.2 million of payments on debt, partially offset by $84.8 million of proceeds from debt issuance.

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, to fund core capital expenditures for 2017, and to pay amounts due related to the settlement of the U.S. class action litigation.  Core capital expenditures for the remainder of 2017 are expected to range between $20.0 to $30.0 million, which excludes flight equipment and capitalized interest.  Our payments remaining for flight equipment purchase and conversion commitments are expected to be approximately $176.2 million, of which approximately $105.7 million is expected to be made during 2017.  We expect to finance the acquisition and conversion of this flight equipment with working capital prior to obtaining permanent financing for the converted aircraft.

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 a yet to be determined amount of debt and/or equity securities 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 until 2025 or later.  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 currently do not intend to repatriate cash from certain foreign subsidiaries that is indefinitely reinvested outside the U.S.  Any repatriation of cash from these subsidiaries or certain changes in U.S. tax laws could result in additional tax expense.

Contractual Obligations and Debt Agreements

See Notes 8 and 16 to our Financial Statements for a description of our new debt obligations.  See our 2016 Annual Report on Form 10-K for a tabular disclosure of our contractual obligations as of December 31, 2016 and a description of our other debt obligations and amendments thereto.

Off-Balance Sheet Arrangements

There were no material changes in our off-balance sheet arrangements during the six months ended June 30, 2017.

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,

33

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, 2016.  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.  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.

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, 2017.  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 2016 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, 2017. 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, 2017 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

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PART II — OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

With respect to the fiscal quarter ended June 30, 2017, the information required in response to this Item is set forth in Note 13 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

For risk factors that may cause actual results to differ materially from those anticipated, please refer to our 2016 Annual Report on Form 10-K.

ITEM 6. EXHIBITS

a. Exhibits

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

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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 2, 2017	/s/  William J. Flynn
	William J. Flynn
	President and Chief Executive Officer
Dated:  August 2, 2017	/s/  Spencer Schwartz
	Spencer Schwartz
	Executive Vice President and Chief Financial Officer

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EXHIBIT INDEX

Exhibit Number	Description
10.1	Atlas Air Worldwide Holdings, Inc. Amended and Restated 2016 Incentive Plan, incorporated by reference to Exhibit B to the Company’s definitive Proxy Statement dated April 18, 2017
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. *
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, 2017 and December 31, 2016, (ii) Consolidated Statements of Operations for the three and six months ended June 30, 2017 and 2016, (iii) Consolidated Statements of Comprehensive Income for the three and six months ended June 30, 2017 and 2016, (iv) Consolidated Statements of Cash Flows for the six months ended June 30, 2017 and 2016, (v) Consolidated Statement of Stockholders’ Equity as of and for the six months ended June 30, 2017 and 2016 and (vi) Notes to the Unaudited Consolidated Financial Statements.

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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 2, 2017	/s/ William J. Flynn
	William J. Flynn
	President and 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 2, 2017	/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, 2017 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 2, 2017

/s/ William J. Flynn

William J. Flynn

President and Chief Executive Officer

/s/ Spencer Schwartz

Spencer Schwartz

Executive Vice President and Chief Financial Officer

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Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2017	Jul. 28, 2017
Document And Entity Information [Abstract]
Document Type	10-Q
Document period end date	Jun. 30, 2017
Amendment flag	false
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2017
Current fiscal year end date	--12-31
Entity central index key	0001135185
Entity filer category	Large Accelerated Filer
Entity registrant name	ATLAS AIR WORLDWIDE HOLDINGS INC
Entity trading symbol	AAWW
Entity common stock shares outstanding		25,265,748
Entity well known seasoned issuer	Yes
Entity voluntary filers	No
Entity current reporting status	Yes

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Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Current Assets
Cash and cash equivalents	$ 271,655	$ 123,890
Short-term investments	7,920	4,313
Restricted cash	11,092	14,360
Accounts receivable, net of allowance	165,013	166,486
Prepaid maintenance	1,899	4,418
Prepaid expenses and other current assets	52,927	44,603
Total current assets	510,506	358,070
Property and Equipment
Flight equipment	4,156,460	3,886,714
Ground equipment	72,167	68,688
Less: accumulated depreciation	(636,189)	(568,946)
Flight equipment modifications in progress	223,489	154,226
Property and equipment, net	3,815,927	3,540,682
Other Assets
Long-term investments and accrued interest	23,008	27,951
Deferred costs and other assets	232,748	204,647
Intangible assets, net and goodwill	111,104	116,029
Total Assets	4,693,293	4,247,379
Current Liabilities
Accounts payable	80,882	59,543
Accrued liabilities	406,440	320,887
Current portion of long-term debt and capital lease	196,136	184,748
Total current liabilities	683,458	565,178
Other Liabilities
Long-term debt and capital lease	1,949,983	1,666,663
Deferred taxes	307,962	298,165
Financial instruments and other liabilities	158,588	200,035
Total other liabilities	2,416,533	2,164,863
Commitments and contingencies	0	0
Stockholders’ Equity
Preferred stock	0	0
Common stock	301	296
Additional paid-in-capital	703,987	657,082
Treasury stock, at cost	(192,755)	(183,119)
Accumulated other comprehensive loss	(4,491)	(4,993)
Retained earnings	1,086,260	1,048,072
Total stockholders’ equity	1,593,302	1,517,338
Total Liabilities and Equity	$ 4,693,293	$ 4,247,379

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Consolidated Balance Sheets (Parenthetical) (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Statement Of Financial Position [Abstract]
Allowance for doubtful accounts receivable	$ 965	$ 997
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	30,063,328	29,633,605
Common stock shares outstanding	25,265,748	25,017,242
Treasury stock shares	4,797,580	4,616,363

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Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Income Statement [Abstract]
Operating Revenue	$ 517,366	$ 443,272	$ 992,761	$ 861,887
Operating Expenses
Salaries, wages and benefits	111,488	101,542	215,575	195,387
Aircraft fuel	83,486	61,353	165,918	124,573
Maintenance, materials and repairs	64,769	55,435	137,585	112,459
Depreciation and amortization	40,986	37,208	78,880	72,213
Aircraft rent	33,792	36,723	69,865	73,760
Travel	34,891	32,010	67,249	62,333
Passenger and ground handling services	23,573	22,019	48,696	42,898
Navigation fees, landing fees and other rent	25,255	18,777	43,790	40,751
Gain on disposal of aircraft	(93)	0	(147)	0
Special charge	0	0	0	6,631
Transaction-related expenses	1,396	16,788	2,312	17,581
Other	39,345	40,593	80,523	72,420
Total Operating Expenses	458,888	422,448	910,246	821,006
Operating Income	58,478	20,824	82,515	40,881
Non-operating Expenses (Income)
Interest income	(1,342)	(1,405)	(2,598)	(3,009)
Interest expense	24,670	20,938	46,194	42,240
Capitalized interest	(1,931)	(690)	(3,711)	(1,047)
Loss on early extinguishment of debt	0	0	0	132
Unrealized gain on financial instruments	(13,763)	(26,475)	(8,550)	(26,475)
Other expense (income)	1,061	48	809	(192)
Total Non-operating Expenses (Income)	8,695	(7,584)	32,144	11,649
Income from continuing operations before income taxes	49,783	28,408	50,371	29,232
Income tax expense	10,739	7,489	11,292	7,842
Income from continuing operations, net of taxes	39,044	20,919	39,079	21,390
Loss from discontinued operations, net of taxes	(105)	(345)	(891)	(345)
Net Income	$ 38,939	$ 20,574	$ 38,188	$ 21,045
Earnings (loss) per share from continuing operations:
Basic	$ 1.55	$ 0.84	$ 1.55	$ 0.86
Diluted	0.92	(0.26)	1.13	(0.24)
Loss per share from discontinued operations:
Basic	0.00	(0.01)	(0.04)	(0.01)
Diluted	0.00	(0.01)	(0.03)	(0.01)
Earnings (loss) per share:
Basic	1.54	0.83	1.51	0.85
Diluted	$ 0.92	$ (0.28)	$ 1.09	$ (0.26)
Weighted average shares:
Basic	25,257	24,812	25,210	24,761
Diluted	26,791	25,225	26,823	25,036

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Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Statement Of Income And Comprehensive Income [Abstract]
Net Income	$ 38,939	$ 20,574	$ 38,188	$ 21,045
Interest rate derivatives:
Reclassification to interest expense	402	441	820	895
Income tax expense	(156)	(171)	(318)	(347)
Other comprehensive income	246	270	502	548
Comprehensive Income	$ 39,185	$ 20,844	$ 38,690	$ 21,593

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Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Operating Activities:
Income from continuing operations, net of taxes	$ 39,079	$ 21,390
Less: Loss from discontinued operations, net of taxes	(891)	(345)
Net Income	38,188	21,045
Adjustments to reconcile Net Income to net cash provided by operating activities:
Depreciation and amortization	90,842	81,818
Accretion of debt securities discount	(604)	(650)
Provision for allowance for doubtful accounts	134	321
Special charge, net of cash payments	0	6,631
Loss on early extinguishment of debt	0	132
Unrealized gain on financial instruments	(8,550)	(26,475)
Gain on disposal of aircraft	(147)	0
Deferred taxes	11,000	7,667
Stock-based compensation expense	10,579	10,961
Changes in:
Accounts receivable	(5,204)	39,354
Prepaid expenses, current assets and other assets	(36,067)	(15,382)
Accounts payable and accrued liabilities	12,636	(78,178)
Net cash provided by operating activities	112,807	47,244
Investing Activities:
Capital expenditures	(45,237)	(27,239)
Payments for flight equipment and modifications	(226,812)	(186,213)
Acquisition of business, net of cash acquired	0	(107,498)
Proceeds from investments	1,941	7,512
Proceeds from disposal of aircraft	147	0
Net cash used for investing activities	(269,961)	(313,438)
Financing Activities:
Proceeds from debt issuance	435,325	84,790
Proceeds from revolving credit facility	150,000	0
Payment of revolving credit facility	(150,000)	0
Customer maintenance reserves and deposits received	18,062	7,187
Customer maintenance reserves paid	(6,384)	0
Proceeds from sale of convertible note warrants	38,148	0
Payments for convertible note hedges	(70,140)	0
Purchase of treasury stock	(9,636)	(4,255)
Excess tax benefit from stock-based compensation expense	0	168
Payment of debt issuance costs	(10,323)	(1,074)
Payments of debt	(93,401)	(91,208)
Net cash provided by (used for) financing activities	301,651	(4,392)
Net increase (decrease) in cash, cash equivalents and restricted cash	144,497	(270,586)
Cash, cash equivalents and restricted cash at the beginning of period	138,250	438,931
Cash, cash equivalents and restricted cash at the end of period	282,747	168,345
Noncash Investing and Financing Activities:
Acquisition of flight equipment included in Accounts payable and accrued liabilities	75,668	15,448
Acquisition of flight equipment under capital lease	$ 32,380	$ 0

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Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Loss	Retained Earnings
Balance at Dec. 31, 2015	$ 1,454,183	$ 290	$ (171,844)	$ 625,244	$ (6,063)	$ 1,006,556
Net Income	21,045	0	0	0	0	21,045
Other comprehensive income	548	0	0	0	548	0
Stock-based compensation	10,961	0	0	10,961	0	0
Purchase of shares of treasury stock	(4,255)	0	(4,255)	0	0	0
Issuance of shares of restricted stock	0	3	0	(3)	0	0
Tax expense on restricted stock and stock options	(614)	0	0	(614)	0	0
Balance at Jun. 30, 2016	1,481,868	293	(176,099)	635,588	(5,515)	1,027,601
Balance at Dec. 31, 2016	1,517,338	296	(183,119)	657,082	(4,993)	1,048,072
Net Income	38,188	0	0	0	0	38,188
Other comprehensive income	502	0	0	0	502	0
Stock-based compensation	10,579	0	0	10,579	0	0
Purchase of shares of treasury stock	(9,636)	0	(9,636)	0	0	0
Issuance of shares of restricted stock	0	5	0	(5)	0	0
Equity component of convertible note, net of tax	43,248	0	0	43,248	0	0
Purchase of convertible note hedges, net of tax	(45,065)	0	0	(45,065)	0	0
Issuance of convertible note warrants	38,148	0	0	38,148	0	0
Balance at Jun. 30, 2017	$ 1,593,302	$ 301	$ (192,755)	$ 703,987	$ (4,491)	$ 1,086,260

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Consolidated Statements of Stockholders' Equity (Parentheticals) (Unaudited) - shares	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Statement Of Stockholders Equity [Abstract]
Purchase of shares of treasury stock	181,217	115,362
Issuance of shares of restricted stock	429,723	306,790

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Basis of Presentation

6 Months Ended

Jun. 30, 2017

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, 2016, which includes additional disclosures and a summary of our significant accounting policies.  The December 31, 2016 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, 2017, the results of operations for the three and six months ended June 30, 2017 and 2016, comprehensive income for the three and six months ended June 30, 2017 and 2016, cash flows for the six months ended June 30, 2017 and 2016, and shareholders’ equity as of and for the six months ended June 30, 2017 and 2016.

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, 2017

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

2. Summary of Significant Accounting Policies

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 $1.1 million and zero for the three months ended June 30, 2017 and June 30, 2016, respectively, and was $1.9 million and zero for the six months ended June 30, 2017 and June 30, 2016, respectively.  Deferred maintenance included within Deferred costs and other assets is as follows:

	Deferred Maintenance
Balance as of December 31, 2016	$	19,100
Deferred maintenance costs		24,042
Amortization of deferred maintenance		(1,902	)
Balance as of June 30, 2017	$	41,240

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, 2017		December 31, 2016
Cash and cash equivalents	$	271,655	$	123,890
Restricted cash		11,092		14,360
Total Cash, cash equivalents and restricted cash
shown in consolidated statements of cash flows	$	282,747	$	138,250

Recent Accounting Pronouncements

In March 2016, the Financial Accounting Standards Board (“FASB”) amended its accounting guidance for share-based compensation.  The amended guidance changes how companies account for certain aspects of share-based payment awards to employees, including the accounting for income taxes, forfeitures, and statutory tax withholding requirements, as well as classification in the statement of cash flows.  We adopted this amended guidance on January 1, 2017 on a prospective basis.  As a result, we recognized $1.5 million of excess tax benefits during the six months ended June 30, 2017 as a reduction of income tax expense in our consolidated statements of operations.  Excess tax benefits were previously recognized within equity.  Additionally, our consolidated statements of cash flows present such excess tax benefits, which were previously presented as a financing activity, as an operating activity.

In February 2016, the FASB amended its accounting guidance for leases.  The guidance requires a lessee to recognize assets and liabilities on the balance sheet arising from leases with terms greater than twelve months.  While lessor accounting guidance is relatively unchanged, certain amendments were made to conform with changes made to lessee accounting and amended revenue recognition guidance.  The new guidance will continue 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.  The amended guidance is effective as of the beginning of 2019, with early adoption permitted.  While we are still assessing the impact the amended guidance will have on our financial statements, we expect that recognizing the right-of-use asset and related lease liability will impact our balance sheet materially.  We have developed and are implementing a plan for adopting this amended guidance.

In May 2014, the FASB amended its accounting guidance for revenue recognition.  Subsequently, the FASB has issued several clarifications and updates.  The fundamental principles of the new guidance are that companies should recognize revenue in a manner that reflects the timing of the transfer of services to customers and consideration that a company expects to receive for the services provided.  It also requires additional disclosures necessary for the financial statement users to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers.  We will adopt this guidance on its required effective date of January 1, 2018.  While we are still assessing the methods of adoption and impact the amended guidance will have on our financial statements, we expect that an immaterial amount of revenue currently recognized based on flight departure will likely be recognized over time as the services are performed.  In addition, we expect that revenue related to contracted minimum block hour guarantees under certain ACMI and CMI contracts will likely be recognized in later periods under the amended guidance.  The implementation of our plan to adopt this amended guidance is progressing as expected.

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Related Parties

6 Months Ended

Jun. 30, 2017

Related Party Transactions [Abstract]

Related Parties

3. Related Parties

DHL Investment and 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 (“DP”), 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 (the “BSA”), 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, 2017		June 30, 2016		June 30, 2017		June 30, 2016
Revenue from Polar	$	108,930	$	101,980	$	211,158	$	200,717
Ground handling and airport fees to Polar		513		321		979		624
Accounts receivable/payable as of:	June 30, 2017		December 31, 2016
Receivables from Polar	$	9,702	$	8,161
Payables to Polar		893		2,019
Aggregate Carrying Value of Polar Investment as of:	June 30, 2017		December 31, 2016
Aggregate Carrying Value of Polar Investment	$	4,870	$	4,870

GATS

We hold a 50% interest in GATS GP (BVI) Ltd. (“GATS”), a joint venture with an unrelated third party.  As of June 30, 2017 and December 31, 2016, our investment in GATS was $21.5 million and $22.2 million, respectively.  We had Accounts payable to GATS of $0.5 million as of June 30, 2017 and $2.4 million as of December 31, 2016.

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Southern Air Acquisition

6 Months Ended

Jun. 30, 2017

Business Combinations [Abstract]

Southern Air Acquisition

4. Southern Air Acquisition

On April 7, 2016, we completed the acquisition of Southern Air and its subsidiaries, including Southern Air Inc. and Florida West International Airways, Inc. (“Florida West”).  The acquisition of Southern Air provided us with immediate entry into 777 and 737 aircraft operating platforms, with the potential for developing additional business with existing and new customers. We believe this augments our ability to offer the broadest array of aircraft and services for domestic, regional and international operations.  For the three and six months ended June 30, 2017, we incurred Transaction-related expenses of $1.4 million and $2.3 million, respectively.  For the three and six months ended June 30, 2016, we incurred Transaction-related expenses of $13.3 million and $14.1 million, respectively.  Transaction-related expenses are primarily related to: compensation costs, including employee termination benefits; professional fees; and integration costs associated with the acquisition.

The unaudited estimated pro forma operating revenue for AAWW, including Southern Air, for the three and six months ended June 30, 2016 were $444.9 million and $889.0 million, respectively, including adjustments to conform with our accounting policies.  The earnings of Southern Air were not material for the three and six months ended June 30, 2016 and, accordingly, pro forma and actual earnings information have not been presented.  

As part of integrating Southern Air, management decided and committed to pursue a plan to sell Florida West.  As a result, the financial results for Florida West were presented as a discontinued operation and the assets and liabilities of Florida West were classified as held for sale from the date of acquisition through December 31, 2016.  In February 2017, management determined that a sale was no longer likely to occur and committed to a plan to wind-down the Florida West operations.  The wind-down of operations was completed during the first quarter of 2017.

A summary of the employee termination benefit liabilities, which are expected to be paid by the first quarter of 2018, is as follows:

	Employee Termination Benefits
Liability as of December 31, 2016	$	1,214
Wind-down expenses		836
Cash payments		(1,528	)
Liability as of June 30, 2017	$	522

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Special Charge

6 Months Ended

Jun. 30, 2017

Aircraft And Aircraft Engines Held For Sale [Abstract]

Special Charge

5. Special Charge

During the first quarter of 2016, we classified four CF6-80 engines as held for sale, recognized an impairment loss of $6.5 million and ceased depreciation on the engines.  All four of those engines were traded in during 2016.  During the fourth quarter of 2016, we classified two CF6-80 engines as held for sale, recognized an impairment loss of $3.5 million and ceased depreciation on the engines.  One of those engines was traded in during the first quarter of 2017.  The carrying value of the remaining CF6-80 engine held for sale at June 30, 2017 was $1.4 million, and of the two CF6-80 engines held for sale at December 31, 2016 was $2.8 million, which was included within Prepaid expenses and other current assets in the consolidated balance sheets.  The remaining CF6-80 engine classified as held for sale is expected to be sold during 2017.

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Amazon

6 Months Ended

Jun. 30, 2017

Warrants And Rights Note Disclosure [Abstract]

Amazon

6. 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 20 Boeing 767-300 freighter aircraft for Amazon by Atlas, as well as Dry Leasing by Titan.  The Dry Leases will have a term of ten years from the commencement of each lease, while the CMI operations will be for seven years from the commencement of each agreement (with an option for Amazon to extend the term to a total of ten years).  The first two aircraft were placed in service during the third quarter of 2016 and the first quarter of 2017.  The next four aircraft were placed in service during the second quarter of 2017 with the remainder expected to be placed in service by the end of 2018.

In conjunction with these agreements, 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.  A portion of the warrant, representing the right to purchase 3.75 million shares, vested immediately upon issuance of the warrant and the remainder of the warrant, representing the right to purchase 3.75 million shares, will vest in increments of 375,000 as the lease and operation of each of the 11^th through 20^th aircraft commences.  The warrant will be exercisable in accordance with its terms through 2021.  As of June 30, 2017, no warrants have been exercised.

The agreements also provide 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.  This warrant to purchase 3.75 million shares will vest in conjunction with payments by Amazon for additional business with us.  The warrant will be exercisable in accordance with its terms through 2023.

The $92.9 million fair value of the vested portion of the warrant issued to Amazon as of May 4, 2016 was recorded as a warrant liability within Financial instruments and other liabilities (the “Amazon Warrant”).  The initial fair value of the warrant was recognized as a customer incentive asset within Deferred costs and other assets, net and is being amortized as a reduction of revenue in proportion to the amount of revenue recognized over the terms of the Dry Leases and CMI agreements.  We amortized $0.9 million and $1.3 million of the customer incentive asset for the three and six months ended June 30, 2017, respectively.  The balance of the customer incentive asset, net of amortization, was $91.0 million as of June 30, 2017 and $92.4 million as of December 31, 2016.

The Amazon Warrant liability is marked-to-market at the end of each reporting period with changes in fair value recorded in Unrealized gain on financial instruments.  We utilize a Monte Carlo simulation approach to estimate the fair value of the Amazon Warrant 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.  We recognized a net unrealized gain of $13.8 million and $8.6 million on the Amazon Warrant during the three and six months ended June 30, 2017, respectively.  We recognized a net unrealized gain of $26.5 million on the Amazon Warrant during the three and six months ended June 30, 2016.  The fair value of the Amazon Warrant liability was $87.2 million as of June 30, 2017 and $95.8 million as of December 31, 2016.

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Accrued Liabilities

6 Months Ended

Jun. 30, 2017

Accrued Liabilities Current And Noncurrent [Abstract]

Accrued Liabilities

7. Accrued Liabilities

Accrued liabilities consisted of the following as of:

	June 30, 2017		December 31, 2016
Maintenance	$	140,000	$	54,495
Customer maintenance reserves		93,492		81,830
Salaries, wages and benefits		40,978		55,063
U.S. class action settlement		30,000		35,000
Deferred revenue		20,877		10,298
Aircraft fuel		21,141		16,149
Other		59,952		68,052
Accrued liabilities	$	406,440	$	320,887

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Debt

6 Months Ended

Jun. 30, 2017

Debt Disclosure [Abstract]

Debt

8. Debt

Term Loans and Capital Lease

We have entered into various term loans during 2017 to finance the purchase and conversion of 767-300 aircraft, andfor GEnx engine performance upgrade kits and overhauls.  Each term loan requires payment of principal and interest quarterly in arrears.  Funds available under each term loan are subject to usual and customary fees, and funds drawn typically bear interest at a fixed rate based on LIBOR, plus a margin.  Each facility is guaranteed by us and subject to customary covenants and events of default.

The following table summarizes the terms and principal balances for each term loan entered into during 2017 (in millions):

	Issue	Face		Collateral	Original	Interest Rate	Interest
	Date	Value		Type	Term	Type	Rate
First 2017 Term Loan	April 2017	$	20.1	767-300	91 months	Fixed		3.02%
Second 2017 Term Loan	April 2017		21.3	767-300	91 months	Fixed		3.16%
Third 2017 Term Loan	May 2017		21.5	767-300	91 months	Fixed		3.16%
Fourth 2017 Term Loan	June 2017		21.3	767-300	91 months	Fixed		3.09%
Fifth 2017 Term Loan	June 2017		21.7	767-300	91 months	Fixed		3.11%
Sixth 2017 Term Loan	June 2017		21.7	767-300	91 months	Fixed		3.11%
Seventh 2017 Term Loan	June 2017		18.7	None	58 months	Fixed		2.17%
Total		$	146.3

In March 2017, we amended and extended a lease for a 747-400 freighter aircraft to June 2032 at a lower monthly lease payment.  As a result of the extension, we determined that the lease qualifies as a capital lease.  The present value of the future minimum lease payments was $32.4 million.

Convertible Notes

In May 2017, we issued $289.0 million aggregate principal amount of convertible senior notes (the “2017 Convertible Notes”) in an underwritten public offering.  The Convertible Notes are senior unsecured obligations and accrue interest payable semiannually on June 1 and December 1 of each year at a fixed rate of 1.875%.  The 2017 Convertible Notes will mature on June 1, 2024, unless earlier converted or repurchased pursuant to their terms.

We used the majority of the net proceeds in May 2017 to repay $150.0 million then outstanding under our revolving credit facility and to fund the cost of the convertible note hedges described below.

Each $1,000 of principal of the 2017 Convertible Notes will initially be convertible into 16.3713 shares of our common stock, which is equal to an initial conversion price of $61.08 per share. The conversion rate will be subject to adjustment upon the occurrence of certain specified events but will not be adjusted for accrued and unpaid interest, except in certain limited circumstances. Upon the occurrence of a “make-whole fundamental change,” we will, in certain circumstances, increase the conversion rate by a number of additional shares of our common stock for the 2017 Convertible Notes converted in connection with such “make-whole fundamental change”. Additionally, if we undergo a “fundamental change,” a holder will have the option to require us to repurchase all or a portion of its 2017 Convertible Notes for cash at a price equal to 100% of the principal amount of the 2017 Convertible Notes being repurchased plus any accrued and unpaid interest through, but excluding, the fundamental change repurchase date.

In connection with the offering of the 2017 Convertible Notes, we entered into convertible note hedge transactions whereby we have the option to purchase initially (subject to adjustment for certain specified events) a total of 4,731,306 shares of our common stock at a price of $61.08 per share.  The total cost of the convertible note hedge transactions was $70.1 million. In addition, we sold warrants to the option counterparties whereby the holders of the warrants have the option to purchase initially (subject to adjustment for certain specified events) a total of 4,731,306 shares of our common stock at a price of $92.20.  We received $38.1 million in cash proceeds from the sale of these warrants.

Taken together, the purchase of the convertible note hedges and the sale of warrants are intended to offset any economic dilution from the conversion of the 2017 Convertible Notes when the stock price is below $92.20 per share and to effectively increase the overall conversion price from $61.08 to $92.20 per share.  However, for purposes of the computation of diluted earnings per share in accordance with GAAP, dilution will occur when the average share price of our common stock for a given period exceeds the conversion price of the 2017 Convertible Notes, which initially is equal to $61.08 per share.  The $32.0 million net cost incurred in connection with the convertible note hedges and warrants was recorded as a reduction to additional paid-in capital, net of tax, in the consolidated balance sheet.

On or after September 1, 2023 until the close of business on the second scheduled trading day immediately preceding the maturity date, a holder may convert all or a portion of its 2017 Convertible Notes.

Upon conversion, the 2017 Convertible Notes will be settled, at our election, in cash, shares of our common stock, or a combination of cash and shares of our common stock.  Our current intent and policy is to settle conversions with a combination of cash and shares of common stock with the principal amount of the 2017 Convertible Notes paid in cash.

Holders may only convert their 2017 Convertible Notes at their option at any time prior to September 1, 2023, under the following circumstances:

• during any calendar quarter (and only during such calendar quarter) if, for each of at least 20 trading days (whether or not consecutive) during the 30 consecutive trading day period ending on, and including, the last trading day of the immediately preceding calendar quarter, the last reported sale price of our common stock for such trading day is equal to or greater than 130% of the conversion price on such trading day;

• during the five consecutive business day period immediately following any five consecutive trading day period (the “measurement period”) in which, for each trading day of the measurement period, the trading price per $1,000 principal amount of the convertible notes for such trading day was less than 98% of the product of the last reported sale price of our common stock for such trading day and the conversion rate on such trading day; or

• upon the occurrence of specified corporate events.

We separately account for the liability and equity components of convertible notes.  The carrying amount of the liability component was determined by measuring the fair value of a similar liability that does not have an associated conversion feature, assuming our nonconvertible unsecured debt borrowing rate.  The carrying value of the equity component, the conversion option, which is recognized as additional paid-in-capital, net of tax, creates a debt discount on the convertible notes.  The debt discount was determined by deducting the relative fair value of the liability component from the proceeds of the convertible notes and is amortized to interest expense using an effective interest rate of 6.14% over the term of the 2017 Convertible Notes.  The equity component will not be remeasured as long as it continues to meet the conditions for equity classification.

The debt issuance costs related to the issuance of the 2017 Convertible Notes were allocated to the liability and equity components based on their relative values, as determined above.  Total debt issuance costs were $7.5 million, of which $5.7 million was allocated to the liability component and $1.8 million was allocated to the equity component. The debt issuance costs allocated to the liability component are amortized to interest expense using the effective interest method over the term of the 2017 Convertible Notes.

In June 2015, we issued $224.5 million aggregate principal amount of convertible senior notes (the “2015 Convertible Notes”) in an underwritten public offering.  The 2015 Convertible Notes are senior unsecured obligations and accrue interest payable semiannually on June 1 and December 1 of each year at a fixed rate of 2.25%.  The 2015 Convertible Notes will mature on June 1, 2022, unless earlier converted or repurchased pursuant to their terms.

As of June 30, 2017, the 2017 Convertible Notes and the 2015 Convertible Notes consisted of the following:

	2017 Convertible Note			2015 Convertible Note
Remaining life in months		83			59
Liability component:
Gross proceeds	$	289,000		$	224,500
Less: debt discount, net of amortization		(69,271	)		(39,587	)
Less: debt issuance cost, net of amortization		(5,592	)		(3,799	)
Net carrying amount	$	214,137		$	181,114
Equity component (1)	$	70,140		$	52,903

(1) Included in Additional paid-in capital on the consolidated balance sheet as of June 30, 2017.

The following table presents the amount of interest expense recognized related to the 2017 Convertible Notes and the 2015 Convertible Notes:

	For the Three Months Ended				For the Six Months Ended
	June 30, 2017		June 30, 2016		June 30, 2017		June 30, 2016
Contractual interest coupon	$	1,850	$	1,263	$	3,113	$	2,526
Amortization of debt discount		2,567		1,592		4,238		3,159
Amortization of debt issuance costs		251		168		424		335
Total interest expense recognized	$	4,668	$	3,023	$	7,775	$	6,020

Revolving Credit Facility

In December 2016, we entered into a three-year $150.0 million secured revolving credit facility (the “Revolver”) for general corporate purposes, including financing the acquisition and conversion of 767 aircraft prior to obtaining permanent financing for the converted aircraft.  There were no amounts outstanding and we had $142.0 million of unused availability under the Revolver, based on the collateral borrowing base, as of June 30, 2017.

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Commitments

6 Months Ended

Jun. 30, 2017

Commitments And Contingencies Disclosure [Abstract]

Commitments

9. Commitments

Equipment Purchase Commitments

As of June 30, 2017, our estimated payments remaining for flight equipment purchase commitments are $176.2 million, of which $105.7 million are expected to be made during the remainder of 2017.

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Income Taxes

6 Months Ended

Jun. 30, 2017

Income Tax Disclosure [Abstract]

Income Taxes

10. Income Taxes

Our effective income tax rates were 21.6% and 26.4% for the three months ended June 30, 2017 and 2016, respectively.  Our effective income tax rates were 22.4% and 26.8% for the six months ended June 30, 2017 and 2016, respectively.  The effective income tax rates for the three and six months ended June 30, 2017 differed from the U.S. statutory rate primarily due to nontaxable changes in the value of the Amazon Warrant liability (see Note 6 to our Financial Statements).  In addition, the effective income tax rate for the six months ended June 30, 2017 differed from the U.S. statutory rate due to the impact of the 2017 adoption of the amended accounting guidance for share-based compensation which requires that excess tax benefits associated with share-based compensation be recognized within income tax expense in our consolidated statement of operations.  The effective income tax rate for the three and six months ended June 30, 2016 differed from the U.S. federal statutory rate primarily due to nondeductible acquisition-related expenses incurred in connection with the acquisition of Southern Air (see Note 4 to our Financial Statements).  The effective rates for all periods were impacted by our assertion to indefinitely reinvest the net earnings of foreign subsidiaries outside the U.S.  For interim accounting purposes, we recognize income taxes using an estimated annual effective tax rate.

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Financial Instruments

6 Months Ended

Jun. 30, 2017

Fair Value Disclosures [Abstract]

Financial Instruments

11. 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 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 (“PTCs”) related to enhanced equipment trust certificates (“EETCs”) issued by Atlas in 1998, 1999 and 2000.

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 the Amazon Warrant is 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, 2017
	Carrying Value		Fair Value		Level 1		Level 2		Level 3
Assets
Cash and cash equivalents	$	271,655	$	271,655	$	271,655	$	-	$	-
Short-term investments		7,920		7,920		-		-		7,920
Restricted cash		11,092		11,092		11,092		-		-
Long-term investments and accrued interest		23,008		27,146		-		-		27,146
	$	313,675	$	317,813	$	282,747	$	-	$	35,066
Liabilities
Term loans and notes	$	1,719,099	$	1,799,266	$	-	$	-	$	1,799,266
Convertible notes		395,251		548,851		548,851		-		-
Amazon Warrant		87,225		87,225		-		87,225		-
	$	2,201,575	$	2,435,342	$	548,851	$	87,225	$	1,799,266

	December 31, 2016
	Carrying Value		Fair Value		Level 1		Level 2		Level 3
Assets
Cash and cash equivalents	$	123,890	$	123,890	$	123,890	$	-	$	-
Short-term investments		4,313		4,313		-		-		4,313
Restricted cash		14,360		14,360		14,360		-		-
Long-term investments and accrued interest		27,951		33,161		-		-		33,161
	$	170,514	$	175,724	$	138,250	$	-	$	37,474
Liabilities
Term loans and notes	$	1,674,013	$	1,739,744	$	-	$	-	$	1,739,744
Convertible notes		177,398		228,429		228,429		-		-
Amazon Warrant		95,775		95,775		-		95,775		-
	$	1,947,186	$	2,063,948	$	228,429	$	95,775	$	1,739,744

The following table presents the carrying value, gross unrealized gain (loss) and fair value of our long-term investments and accrued interest by contractual maturity as of:

	June 30, 2017						December 31, 2016
	Carrying Value		Gross Unrealized Gain		Fair Value		Carrying Value		Gross Unrealized Gain		Fair Value
Debt securities
Due after one but within five years	$	23,008	$	4,138	$	27,146	$	27,951	$	5,210	$	33,161
Total	$	23,008	$	4,138	$	27,146	$	27,951	$	5,210	$	33,161

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Segment Reporting

6 Months Ended

Jun. 30, 2017

Segment Reporting [Abstract]

Segment Reporting

12. 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 from continuing operations before income taxes excluding the following: Special charges, 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.

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

	For the Three Months Ended					For the Six Months Ended
	June 30, 2017			June 30, 2016		June 30, 2017			June 30, 2016
Operating Revenue:
ACMI	$	229,179		$	211,722	$	429,873		$	394,462
Charter		255,820			202,451		499,718			404,754
Dry Leasing		28,560			25,066		55,317			53,258
Customer incentive asset amortization		(898	)		-		(1,343	)		-
Other		4,705			4,033		9,196			9,413
Total Operating Revenue	$	517,366		$	443,272	$	992,761		$	861,887

Direct Contribution:
ACMI	$	53,524		$	45,490		$	89,487		$	70,230
Charter		36,884			24,856			54,070			45,633
Dry Leasing		9,661			6,878			19,384			17,286
Total Direct Contribution for Reportable Segments		100,069			77,224			162,941			133,149
Unallocated income and expenses, net		(62,746	)		(58,503	)		(118,955	)		(106,048	)
Loss on early extinguishment of debt		-			-			-			(132	)
Unrealized gain on financial instruments		13,763			26,475			8,550			26,475
Special charge		-			-			-			(6,631	)
Transaction-related expenses		(1,396	)		(16,788	)		(2,312	)		(17,581	)
Gain on disposal of aircraft		93			-			147			-
Income from continuing operations before income taxes		49,783			28,408			50,371			29,232
Add back (subtract):
Interest income		(1,342	)		(1,405	)		(2,598	)		(3,009	)
Interest expense		24,670			20,938			46,194			42,240
Capitalized interest		(1,931	)		(690	)		(3,711	)		(1,047	)
Loss on early extinguishment of debt		-			-			-			132
Unrealized gain on financial instruments		(13,763	)		(26,475	)		(8,550	)		(26,475	)
Other expense (income)		1,061			48			809			(192	)
Operating Income	$	58,478		$	20,824		$	82,515		$	40,881

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 (the “AMC”), Polar and DHL (see Note 3 for further discussion regarding Polar).  No other customer accounted for more than 10.0% of our Total Operating Revenue.  Revenue from the AMC was $140.7 million for the three months ended June 30, 2017 and $119.6 million for the three months ended June 30, 2016.  Revenue from the AMC was $272.6 million for the six months ended June 30, 2017 and $230.7 million for the six months ended June 30, 2016.  Revenue from DHL was $61.6 million for the three months ended June 30, 2017 and $47.0 million for the three months ended June 30, 2016.  Revenue from DHL was $116.5 million for the six months ended June 30, 2017 and $70.6 million for the six months ended June 30, 2016.  We have not experienced any credit issues with either of these customers.

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Labor and Legal Proceedings

6 Months Ended

Jun. 30, 2017

Labor And Legal Proceedings [Abstract]

Labor and Legal Proceedings

13. 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 to this process, once a seniority list is presented to us by the unions, it triggers an agreed-upon time frame 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 pre-mediation investigation on the IBT’s Atlas application in June 2016, which is currently pending (along with the IBT’s Southern Air application).  Due to a lack of meaningful progress in such merger discussions, in February 2017, we 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. While this lawsuit is pending in the Southern District Court of New York, the Company and the IBT have reached an interim agreement on a process to proceed with negotiations for a new joint CBA.  These negotiations commenced on July 6, 2017.

We are subject to risks of work interruption or stoppage as permitted by the Railway Labor Act of 1926 (the “Railway Labor Act”) and may incur additional administrative expenses associated with union representation of our employees.

Matters Related to Alleged Pricing Practices

The Company and Polar Air Cargo, LLC (“Old Polar”), a consolidated subsidiary, were named defendants, along with a number of other cargo carriers, in several class actions in the U.S. arising from allegations about the pricing practices of Old Polar and a number of air cargo carriers.  These actions were all centralized in the U.S. District Court for the Eastern District of New York.  Polar was later joined as an additional defendant.  The consolidated complaint alleged, among other things, that the defendants, including the Company and Old Polar, manipulated the market price for air cargo services sold domestically and abroad through the use of surcharges, in violation of U.S., state, and European Union antitrust laws.  The suit sought treble damages and attorneys’ fees.

On January 7, 2016, the Company, Old Polar, and Polar entered into a settlement agreement to settle all claims by participating class members against the Company, Old Polar and Polar. The Company, Polar, and Old Polar deny any wrongdoing, and there is no admission of any wrongdoing in the settlement agreement.  Pursuant to the settlement agreement, the Company, Old Polar and Polar have agreed to make installment payments over three years to settle the plaintiffs’ claims, with payments of $35.0 million paid in January 2016 and 2017, and $30.0 million due on or before January 15, 2018.  The U.S. District Court for the Eastern District of New York issued an order granting preliminary approval of the settlement on January 12, 2016.  On October 6, 2016, the final judgment was issued and the settlement was approved.

In the United Kingdom, several groups of named claimants have brought suit against British Airways in connection with the same alleged pricing practices at issue in the proceedings described above and are seeking damages allegedly arising from that conduct.  British Airways has filed claims in the lawsuit against Old Polar and a number of air cargo carriers for contribution should British Airways be found liable to claimants.  Old Polar’s formal statement of defense was filed on March 2, 2015.  On October 14, 2015, the U.K. Court of Appeal released decisions favorable to the defendant and contributory defendants on two matters under appeal.  Permission was sought to appeal the U.K. Court of Appeal's decisions to the U.K. Supreme Court.  Permission was denied.  In December 2015, certain claimants settled with British Airways removing a significant portion of the claim against British Airways and therefore reducing the potential contribution required by the other airlines, including Old Polar.  On December 16, 2015, the European General Court released decisions annulling decisions that the European Commission made against the majority of the air cargo carriers.  The European Commission did not appeal the General Court decision but has, in early 2017, reissued a revised decision to which Old Polar is, again, not an addressee.  On April 13, 2017, Old Polar and claimants represented by Hausfeld & Co. LLP (the “Hausfeld Claimants”) entered into a bilateral settlement agreement in relation to the English proceedings (the “Settlement Agreement”).  The Settlement Agreement contains a mechanism by which the Hausfeld Claimants will release Old Polar and remove from the English proceedings all claims for damages alleged by the Hausfeld Claimants to be attributable to air cargo purchases from Old Polar (and each of Old Polar’s parents, subsidiaries, affiliates, predecessors, successors, agents and assignees).  The amount of the settlement, which is tax deductible and was previously accrued for, was paid during the second quarter of 2017 and did not have a material adverse impact on the Company’s financial condition, results of operations or cash flows.

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 the same pricing practices at issue in the proceedings described above.  In response, British Airways, KLM, Martinair, Air France and Lufthansa filed third-party indemnification lawsuits against Old Polar and Polar seeking indemnification in the event the defendants are found to be liable in the main proceedings.  Old Polar and Polar entered their initial court appearances on September 30, 2015.  Various procedural issues are undergoing court review.  Like the U.K. proceedings, the Netherlands proceedings are likely to be affected by the European Commission’s revised decision.  We are unable to reasonably predict the outcome of the litigation. If the Company, Old Polar or Polar were to incur an unfavorable outcome in connection with this proceeding, 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 $9.2 million in aggregate based on June 30, 2017 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.  Furthermore, we may seek appropriate indemnity from the shipper in each claim as may be feasible.  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.  As required to defend such claims, we have made deposits pending resolution of these matters.  The balance was $5.0 million as of June 30, 2017 and December 31, 2016, 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.

Accruals

As of June 30, 2017, the Company had an accrual of $30.0 million related to the U.S. class action settlement that was recognized in 2015.

Other

We have certain other contingencies incident to the ordinary course of business.  Management believes that the ultimate disposition of such other contingencies is not expected to materially affect our financial condition, results of operations or cash flows.

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Earnings Per Share

6 Months Ended

Jun. 30, 2017

Earnings Per Share [Abstract]

Earnings Per Share

14. 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.  Anti-dilutive shares related to warrants and stock options that were out of the money and excluded were 7.8 million for the three and six months ended June 30, 2017 and were 3.0 million for the three and six months ended June 30, 2016.

The calculations of basic and diluted EPS were as follows:

	For the Three Months Ended						For the Six Months Ended
Numerator:	June 30, 2017			June 30, 2016			June 30, 2017			June 30, 2016
Income from continuing operations, net of taxes	$	39,044		$	20,919		$	39,079		$	21,390
Less: Unrealized gain on financial instruments, net of tax		(14,293	)		(27,513	)		(8,869	)		(27,513	)
Diluted income (loss) from continuing operations, net of tax	$	24,751		$	(6,594	)	$	30,210		$	(6,123	)
Denominator:
Basic EPS weighted average shares outstanding		25,257			24,812			25,210			24,761
Effect of dilutive warrant		1,081			273			1,096			137
Effect of dilutive stock options and restricted stock		453			140			517			138
Diluted EPS weighted average shares outstanding		26,791			25,225			26,823			25,036
Earnings (loss) per share from continuing operations:
Basic	$	1.55		$	0.84		$	1.55		$	0.86
Diluted	$	0.92		$	(0.26	)	$	1.13		$	(0.24	)
Loss per share from discontinued operations:
Basic	$	(0.00	)	$	(0.01	)	$	(0.04	)	$	(0.01	)
Diluted	$	(0.00	)	$	(0.01	)	$	(0.03	)	$	(0.01	)
Earnings (loss) per share:
Basic	$	1.54		$	0.83		$	1.51		$	0.85
Diluted	$	0.92		$	(0.28	)	$	1.09		$	(0.26	)

The calculation of EPS does not include restricted share units and warrants in which performance or market conditions were not satisfied of 7.6 million for the three and six months ended June 30, 2017 and 7.9 million for three and six months ended June 30, 2016.

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Accumulated Other Comprehensive Income (Loss)

6 Months Ended

Jun. 30, 2017

Accumulated Other Comprehensive Income Loss [Abstract]

Accumulated Other Comprehensive Income (Loss)

15. Accumulated Other Comprehensive Income (Loss)

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

	Interest Rate			ForeignCurrency
	Derivatives			Translation		Total
Balance as of December 31, 2015	$	(6,072	)	$	9	$	(6,063	)
Reclassification to interest expense		895			-		895
Tax effect		(347	)		-		(347	)
Balance as of June 30, 2016	$	(5,524	)	$	9	$	(5,515	)
Balance as of December 31, 2016	$	(5,002	)	$	9	$	(4,993	)
Reclassification to interest expense		820			-		820
Tax effect		(318	)		-		(318	)
Balance as of June 30, 2017	$	(4,500	)	$	9	$	(4,491	)

Interest Rate Derivatives

As of June 30, 2017, there was $7.3 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 $0.4 million for the three months ended June 30, 2017 and 2016, respectively.  Net realized losses reclassified into earnings were $0.8 million and $0.9 million for the six months ended June 30, 2017 and 2016, respectively.  Net realized losses expected to be reclassified into earnings within the next 12 months are $1.6 million as of June 30, 2017.

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Subsequent Events

6 Months Ended

Jun. 30, 2017

Subsequent Events [Abstract]

Subsequent Events

16. Subsequent Events

In July 2017, we borrowed $12.5 million related to the purchase of a 767-300 aircraft under a sixty-month term loan (the “Eighth 2017 Term Loan”).  The Eighth 2017 Term Loan, which is secured by a mortgage against the aircraft, contains customary covenants and events of default and accrues interest at a fixed rate of 3.62%, with principal and interest payable monthly.

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Summary of Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2017

Accounting Policies [Abstract]

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 $1.1 million and zero for the three months ended June 30, 2017 and June 30, 2016, respectively, and was $1.9 million and zero for the six months ended June 30, 2017 and June 30, 2016, respectively.  Deferred maintenance included within Deferred costs and other assets is as follows:

	Deferred Maintenance
Balance as of December 31, 2016	$	19,100
Deferred maintenance costs		24,042
Amortization of deferred maintenance		(1,902	)
Balance as of June 30, 2017	$	41,240

Supplemental Cash Flow Information

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, 2017		December 31, 2016
Cash and cash equivalents	$	271,655	$	123,890
Restricted cash		11,092		14,360
Total Cash, cash equivalents and restricted cash
shown in consolidated statements of cash flows	$	282,747	$	138,250

Recent Accounting Pronouncements

Recent Accounting Pronouncements

In March 2016, the Financial Accounting Standards Board (“FASB”) amended its accounting guidance for share-based compensation.  The amended guidance changes how companies account for certain aspects of share-based payment awards to employees, including the accounting for income taxes, forfeitures, and statutory tax withholding requirements, as well as classification in the statement of cash flows.  We adopted this amended guidance on January 1, 2017 on a prospective basis.  As a result, we recognized $1.5 million of excess tax benefits during the six months ended June 30, 2017 as a reduction of income tax expense in our consolidated statements of operations.  Excess tax benefits were previously recognized within equity.  Additionally, our consolidated statements of cash flows present such excess tax benefits, which were previously presented as a financing activity, as an operating activity.

In February 2016, the FASB amended its accounting guidance for leases.  The guidance requires a lessee to recognize assets and liabilities on the balance sheet arising from leases with terms greater than twelve months.  While lessor accounting guidance is relatively unchanged, certain amendments were made to conform with changes made to lessee accounting and amended revenue recognition guidance.  The new guidance will continue 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.  The amended guidance is effective as of the beginning of 2019, with early adoption permitted.  While we are still assessing the impact the amended guidance will have on our financial statements, we expect that recognizing the right-of-use asset and related lease liability will impact our balance sheet materially.  We have developed and are implementing a plan for adopting this amended guidance.

In May 2014, the FASB amended its accounting guidance for revenue recognition.  Subsequently, the FASB has issued several clarifications and updates.  The fundamental principles of the new guidance are that companies should recognize revenue in a manner that reflects the timing of the transfer of services to customers and consideration that a company expects to receive for the services provided.  It also requires additional disclosures necessary for the financial statement users to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers.  We will adopt this guidance on its required effective date of January 1, 2018.  While we are still assessing the methods of adoption and impact the amended guidance will have on our financial statements, we expect that an immaterial amount of revenue currently recognized based on flight departure will likely be recognized over time as the services are performed.  In addition, we expect that revenue related to contracted minimum block hour guarantees under certain ACMI and CMI contracts will likely be recognized in later periods under the amended guidance.  The implementation of our plan to adopt this amended guidance is progressing as expected.

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Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2017

Summary Of Significant Accounting Policies Tables [Abstract]

Schedule of Deferred Maintenance

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

	Deferred Maintenance
Balance as of December 31, 2016	$	19,100
Deferred maintenance costs		24,042
Amortization of deferred maintenance		(1,902	)
Balance as of June 30, 2017	$	41,240

Reconciliation of Cash, Cash Equivalents and Restricted Cash

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, 2017		December 31, 2016
Cash and cash equivalents	$	271,655	$	123,890
Restricted cash		11,092		14,360
Total Cash, cash equivalents and restricted cash
shown in consolidated statements of cash flows	$	282,747	$	138,250

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Related Parties (Tables)

6 Months Ended

Jun. 30, 2017

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, 2017		June 30, 2016		June 30, 2017		June 30, 2016
Revenue from Polar	$	108,930	$	101,980	$	211,158	$	200,717
Ground handling and airport fees to Polar		513		321		979		624
Accounts receivable/payable as of:	June 30, 2017		December 31, 2016
Receivables from Polar	$	9,702	$	8,161
Payables to Polar		893		2,019
Aggregate Carrying Value of Polar Investment as of:	June 30, 2017		December 31, 2016
Aggregate Carrying Value of Polar Investment	$	4,870	$	4,870

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Southern Air Acquisition (Tables)

6 Months Ended

Jun. 30, 2017

Business Combinations [Abstract]

Summary of Employee Termination Benefit Liabilities

A summary of the employee termination benefit liabilities, which are expected to be paid by the first quarter of 2018, is as follows:

	Employee Termination Benefits
Liability as of December 31, 2016	$	1,214
Wind-down expenses		836
Cash payments		(1,528	)
Liability as of June 30, 2017	$	522

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Accrued Liabilities (Tables)

6 Months Ended

Jun. 30, 2017

Accrued Liabilities Current And Noncurrent [Abstract]

Schedule of Accrued Liabilities

Accrued liabilities consisted of the following as of:

	June 30, 2017		December 31, 2016
Maintenance	$	140,000	$	54,495
Customer maintenance reserves		93,492		81,830
Salaries, wages and benefits		40,978		55,063
U.S. class action settlement		30,000		35,000
Deferred revenue		20,877		10,298
Aircraft fuel		21,141		16,149
Other		59,952		68,052
Accrued liabilities	$	406,440	$	320,887

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Debt (Tables)

6 Months Ended

Jun. 30, 2017

Debt Tables [Abstract]

Terms And Balances For Each Term Loan Outstanding

The following table summarizes the terms and principal balances for each term loan entered into during 2017 (in millions):

	Issue	Face		Collateral	Original	Interest Rate	Interest
	Date	Value		Type	Term	Type	Rate
First 2017 Term Loan	April 2017	$	20.1	767-300	91 months	Fixed		3.02%
Second 2017 Term Loan	April 2017		21.3	767-300	91 months	Fixed		3.16%
Third 2017 Term Loan	May 2017		21.5	767-300	91 months	Fixed		3.16%
Fourth 2017 Term Loan	June 2017		21.3	767-300	91 months	Fixed		3.09%
Fifth 2017 Term Loan	June 2017		21.7	767-300	91 months	Fixed		3.11%
Sixth 2017 Term Loan	June 2017		21.7	767-300	91 months	Fixed		3.11%
Seventh 2017 Term Loan	June 2017		18.7	None	58 months	Fixed		2.17%
Total		$	146.3

Schedule of Convertible Notes

As of June 30, 2017, the 2017 Convertible Notes and the 2015 Convertible Notes consisted of the following:

	2017 Convertible Note			2015 Convertible Note
Remaining life in months		83			59
Liability component:
Gross proceeds	$	289,000		$	224,500
Less: debt discount, net of amortization		(69,271	)		(39,587	)
Less: debt issuance cost, net of amortization		(5,592	)		(3,799	)
Net carrying amount	$	214,137		$	181,114
Equity component (1)	$	70,140		$	52,903

(1) Included in Additional paid-in capital on the consolidated balance sheet as of June 30, 2017.

Summary of Interest Expense Recognized

The following table presents the amount of interest expense recognized related to the 2017 Convertible Notes and the 2015 Convertible Notes:

	For the Three Months Ended				For the Six Months Ended
	June 30, 2017		June 30, 2016		June 30, 2017		June 30, 2016
Contractual interest coupon	$	1,850	$	1,263	$	3,113	$	2,526
Amortization of debt discount		2,567		1,592		4,238		3,159
Amortization of debt issuance costs		251		168		424		335
Total interest expense recognized	$	4,668	$	3,023	$	7,775	$	6,020

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Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2017

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, 2017
	Carrying Value		Fair Value		Level 1		Level 2		Level 3
Assets
Cash and cash equivalents	$	271,655	$	271,655	$	271,655	$	-	$	-
Short-term investments		7,920		7,920		-		-		7,920
Restricted cash		11,092		11,092		11,092		-		-
Long-term investments and accrued interest		23,008		27,146		-		-		27,146
	$	313,675	$	317,813	$	282,747	$	-	$	35,066
Liabilities
Term loans and notes	$	1,719,099	$	1,799,266	$	-	$	-	$	1,799,266
Convertible notes		395,251		548,851		548,851		-		-
Amazon Warrant		87,225		87,225		-		87,225		-
	$	2,201,575	$	2,435,342	$	548,851	$	87,225	$	1,799,266

	December 31, 2016
	Carrying Value		Fair Value		Level 1		Level 2		Level 3
Assets
Cash and cash equivalents	$	123,890	$	123,890	$	123,890	$	-	$	-
Short-term investments		4,313		4,313		-		-		4,313
Restricted cash		14,360		14,360		14,360		-		-
Long-term investments and accrued interest		27,951		33,161		-		-		33,161
	$	170,514	$	175,724	$	138,250	$	-	$	37,474
Liabilities
Term loans and notes	$	1,674,013	$	1,739,744	$	-	$	-	$	1,739,744
Convertible notes		177,398		228,429		228,429		-		-
Amazon Warrant		95,775		95,775		-		95,775		-
	$	1,947,186	$	2,063,948	$	228,429	$	95,775	$	1,739,744

Summary of Carrying Value, Gross Unrealized Gain (Loss) and Fair Value of Long-Term Investments and Accrued Interest by Contractual Maturity

The following table presents the carrying value, gross unrealized gain (loss) and fair value of our long-term investments and accrued interest by contractual maturity as of:

	June 30, 2017						December 31, 2016
	Carrying Value		Gross Unrealized Gain		Fair Value		Carrying Value		Gross Unrealized Gain		Fair Value
Debt securities
Due after one but within five years	$	23,008	$	4,138	$	27,146	$	27,951	$	5,210	$	33,161
Total	$	23,008	$	4,138	$	27,146	$	27,951	$	5,210	$	33,161

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Segment Reporting (Tables)

6 Months Ended

Jun. 30, 2017

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 from continuing operations before income taxes:

	For the Three Months Ended					For the Six Months Ended
	June 30, 2017			June 30, 2016		June 30, 2017			June 30, 2016
Operating Revenue:
ACMI	$	229,179		$	211,722	$	429,873		$	394,462
Charter		255,820			202,451		499,718			404,754
Dry Leasing		28,560			25,066		55,317			53,258
Customer incentive asset amortization		(898	)		-		(1,343	)		-
Other		4,705			4,033		9,196			9,413
Total Operating Revenue	$	517,366		$	443,272	$	992,761		$	861,887

Direct Contribution:
ACMI	$	53,524		$	45,490		$	89,487		$	70,230
Charter		36,884			24,856			54,070			45,633
Dry Leasing		9,661			6,878			19,384			17,286
Total Direct Contribution for Reportable Segments		100,069			77,224			162,941			133,149
Unallocated income and expenses, net		(62,746	)		(58,503	)		(118,955	)		(106,048	)
Loss on early extinguishment of debt		-			-			-			(132	)
Unrealized gain on financial instruments		13,763			26,475			8,550			26,475
Special charge		-			-			-			(6,631	)
Transaction-related expenses		(1,396	)		(16,788	)		(2,312	)		(17,581	)
Gain on disposal of aircraft		93			-			147			-
Income from continuing operations before income taxes		49,783			28,408			50,371			29,232
Add back (subtract):
Interest income		(1,342	)		(1,405	)		(2,598	)		(3,009	)
Interest expense		24,670			20,938			46,194			42,240
Capitalized interest		(1,931	)		(690	)		(3,711	)		(1,047	)
Loss on early extinguishment of debt		-			-			-			132
Unrealized gain on financial instruments		(13,763	)		(26,475	)		(8,550	)		(26,475	)
Other expense (income)		1,061			48			809			(192	)
Operating Income	$	58,478		$	20,824		$	82,515		$	40,881

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Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2017

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, 2017			June 30, 2016			June 30, 2017			June 30, 2016
Income from continuing operations, net of taxes	$	39,044		$	20,919		$	39,079		$	21,390
Less: Unrealized gain on financial instruments, net of tax		(14,293	)		(27,513	)		(8,869	)		(27,513	)
Diluted income (loss) from continuing operations, net of tax	$	24,751		$	(6,594	)	$	30,210		$	(6,123	)
Denominator:
Basic EPS weighted average shares outstanding		25,257			24,812			25,210			24,761
Effect of dilutive warrant		1,081			273			1,096			137
Effect of dilutive stock options and restricted stock		453			140			517			138
Diluted EPS weighted average shares outstanding		26,791			25,225			26,823			25,036
Earnings (loss) per share from continuing operations:
Basic	$	1.55		$	0.84		$	1.55		$	0.86
Diluted	$	0.92		$	(0.26	)	$	1.13		$	(0.24	)
Loss per share from discontinued operations:
Basic	$	(0.00	)	$	(0.01	)	$	(0.04	)	$	(0.01	)
Diluted	$	(0.00	)	$	(0.01	)	$	(0.03	)	$	(0.01	)
Earnings (loss) per share:
Basic	$	1.54		$	0.83		$	1.51		$	0.85
Diluted	$	0.92		$	(0.28	)	$	1.09		$	(0.26	)

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Accumulated Other Comprehensive Income (Loss) (Tables)

6 Months Ended

Jun. 30, 2017

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			ForeignCurrency
	Derivatives			Translation		Total
Balance as of December 31, 2015	$	(6,072	)	$	9	$	(6,063	)
Reclassification to interest expense		895			-		895
Tax effect		(347	)		-		(347	)
Balance as of June 30, 2016	$	(5,524	)	$	9	$	(5,515	)
Balance as of December 31, 2016	$	(5,002	)	$	9	$	(4,993	)
Reclassification to interest expense		820			-		820
Tax effect		(318	)		-		(318	)
Balance as of June 30, 2017	$	(4,500	)	$	9	$	(4,491	)

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Basis of Presentation - Additional Information (Details) - Polar [Member]	6 Months Ended
	Jun. 30, 2017
Basis Of Presentation [Line Items]
Equity interest	51.00%
Voting interest	75.00%

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Summary of Significant Account Policies - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Accounting Policies [Abstract]
Deferred maintenance amortization expense	$ 1,100	$ 0	$ 1,902	$ 0
Amount of excess tax benefits recognition			$ 1,500

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Summary of Significant Account Policies - Schedule of Deferred Maintenance (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Heavy Maintenance Abstract
Beginning Balance			$ 19,100
Deferred maintenance costs			24,042
Amortization of deferred maintenance	$ (1,100)	$ 0	(1,902)	$ 0
Ending Balance	$ 41,240		$ 41,240

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Summary of Significant Account Policies - Reconciliation of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Accounting Policies [Abstract]
Cash and cash equivalents	$ 271,655	$ 123,890
Restricted cash	11,092	14,360
Total Cash, cash equivalents and restricted cash shown in consolidated statements of cash flows	$ 282,747	$ 138,250

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Related Parties - DHL Investment and Polar - Additional Information (Details)	6 Months Ended
	Jun. 30, 2017
Polar [Member]
Related Party Transaction [Line Items]
Equity interest	51.00%
Voting interest	75.00%
DHL [Member] | Polar [Member]
Related Party Transaction [Line Items]
Equity interest	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, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Related Party Transaction [Line Items]
Revenue from related party	$ 108,930	$ 101,980	$ 211,158	$ 200,717
Ground handling and airport fees to Polar	513	$ 321	979	$ 624
Receivables from related party	9,702		9,702		$ 8,161
Payables to related party	893		893		2,019
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, 2017	Dec. 31, 2016
GATS [Member]
Related Party Transaction [Line Items]
Voting interest	50.00%
Investment in joint venture	$ 21.5	$ 22.2
GATS [Member]
Related Party Transaction [Line Items]
Payables to related party	$ 0.5	$ 2.4

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Southern Air Acquisition - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Business Acquisition [Line Items]
Transaction-related expenses	$ 1,396	$ 16,788	$ 2,312	$ 17,581
Southern Air and Subsidiaries [Member]
Business Acquisition [Line Items]
Transaction-related expenses	$ 1,400	13,300	$ 2,300	14,100
Unaudited estimated pro forma operating revenue		$ 444,900		$ 889,000

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Southern Air Acquisition - Summary of Employee Termination Benefit Liabilities (Details) - Employee Severance $ in Thousands	6 Months Ended
	Jun. 30, 2017 USD ($)
Restructuring Cost And Reserve [Line Items]
Liability as of beginning balance	$ 1,214
Wind-down expenses	836
Cash payments	(1,528)
Liability as of ending balance	$ 522

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Special Charge - Additional Information (Details) - CF6-80 Engines $ in Millions	3 Months Ended			12 Months Ended
	Mar. 31, 2017 Engine	Dec. 31, 2016 USD ($) Engine	Mar. 31, 2016 USD ($) Engine	Dec. 31, 2016 USD ($) Engine	Jun. 30, 2017 USD ($)
Impairment Of Aircraft Engines Held For Sale [Line Items]
Number of assets held for sale | Engine		2	4
Number of assets traded | Engine	1			4
Impairment loss recognized for held for sale assets | $		$ 3.5	$ 6.5
Prepaid Expenses and Other Current Assets
Impairment Of Aircraft Engines Held For Sale [Line Items]
Carrying value of asset held for sale | $		$ 2.8		$ 2.8	$ 1.4

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Amazon - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016	May 04, 2016
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 vested immediately			3,750,000
Warrant to buy number of shares vesting			3,750,000
Vesting increments of Amazon warrants			375,000
Warrant vesting year			2021
Warrants exercised			0
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
Additional warrant vesting year			2023
Fair value of vested warrants	$ 91.0		$ 91.0		$ 92.4	$ 92.9
Amortization of customer incentive	0.9		1.3
Warrant liability unrealized (gain) loss	(13.8)	$ (26.5)	(8.6)	$ (26.5)
Fair value of warrant liability	$ 87.2		$ 87.2		$ 95.8
Maximum [Member]
Class Of Warrant Or Right [Line Items]
Warrant providing right to acquire outstanding common shares percentage			20.00%
Percentage of additional warrant to acquire outstanding common shares			10.00%
Dry Leases [Member]
Class Of Warrant Or Right [Line Items]
Lease term period			10 years
CMI Operation [Member]
Class Of Warrant Or Right [Line Items]
Lease term period			7 years

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Accrued Liabilities - Schedule of Accrued Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Accrued Liabilities Current And Noncurrent [Abstract]
Maintenance	$ 140,000	$ 54,495
Customer maintenance reserves	93,492	81,830
Salaries, wages and benefits	40,978	55,063
U.S. class action settlement	30,000	35,000
Deferred revenue	20,877	10,298
Aircraft fuel	21,141	16,149
Other	59,952	68,052
Accrued liabilities	$ 406,440	$ 320,887

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Debt - Schedule of Term Loans (Details)	6 Months Ended
	Jun. 30, 2017 USD ($)
Debt Instrument [Line Items]
Face Value	$ 146,300,000
First 2017 Term Loan [Member]
Debt Instrument [Line Items]
Issue Date	2017-04
Face Value	$ 20,100,000
Collateral Type	767-300
Original Term	91 months
Interest Rate Type	Fixed
Interest Rate	3.02%
Second 2017 Term Loan [Member]
Debt Instrument [Line Items]
Issue Date	2017-04
Face Value	$ 21,300,000
Collateral Type	767-300
Original Term	91 months
Interest Rate Type	Fixed
Interest Rate	3.16%
Third 2017 Term Loan [Member]
Debt Instrument [Line Items]
Issue Date	2017-05
Face Value	$ 21,500,000
Collateral Type	767-300
Original Term	91 months
Interest Rate Type	Fixed
Interest Rate	3.16%
Fourth 2017 Term Loan [Member]
Debt Instrument [Line Items]
Issue Date	2017-06
Face Value	$ 21,300,000
Collateral Type	767-300
Original Term	91 months
Interest Rate Type	Fixed
Interest Rate	3.09%
Fifth 2017 Term Loan [Member]
Debt Instrument [Line Items]
Issue Date	2017-06
Face Value	$ 21,700,000
Collateral Type	767-300
Original Term	91 months
Interest Rate Type	Fixed
Interest Rate	3.11%
Sixth 2017 Term Loan [Member]
Debt Instrument [Line Items]
Issue Date	2017-06
Face Value	$ 21,700,000
Collateral Type	767-300
Original Term	91 months
Interest Rate Type	Fixed
Interest Rate	3.11%
Seventh 2017 Term Loan [Member]
Debt Instrument [Line Items]
Issue Date	2017-06
Face Value	$ 18,700,000
Collateral Type	None
Original Term	58 months
Interest Rate Type	Fixed
Interest Rate	2.17%

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Debt - Term Loans and Capital Lease - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended	6 Months Ended
	Mar. 31, 2017	Jun. 30, 2017
Debt Instrument [Line Items]
Lease extended expiration date	2032-06
Capital lease obligation	$ 32.4
Capital Lease [Member]
Debt Instrument [Line Items]
Issue date	2017-03
Collateral Aircraft Tail Number		747-400 freighter

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Debt - Convertible Notes - Additional Information (Details) $ / shares in Units, $ in Thousands	1 Months Ended	6 Months Ended
	May 31, 2017 USD ($)	Jun. 30, 2017 USD ($) Day $ / shares shares	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)
Debt Instrument [Line Items]
Aggregate proceeds from the sale of warrants		$ 38,148	$ 0
Long-term Debt and Capital Lease [Member] | Revolver [Member]
Debt Instrument [Line Items]
Repayment line of credit outstanding balance	$ 150,000
2017 Convertible Notes [Member]
Debt Instrument [Line Items]
Convertible notes aggregate principal amount	$ 289,000	$ 289,000
Debt instrument interest rate	1.875%
Debt instrument, maturity date	Jun. 01, 2024
Number of common shares converted upon debt conversion for each $1000 principal amount		16.3713
Common stock price per share | $ / shares		$ 61.08
Debt Instrument, repurchase percentage		100.00%
Warrant option holder to purchase common stock | shares		4,731,306
Aggregate amount for convertible hedge		$ 70,100
Aggregate proceeds from the sale of warrants		38,100
Net cost incurred as reduction to additional paid-in capital		$ 32,000
Earliest conversion date		Sep. 01, 2023
Debt instrument, convertible, threshold trading days | Day		20
Debt instrument, convertible, threshold consecutive trading days | Day		30
Debt instrument, convertible, threshold percentage of stock price trigger		130.00%
Debt instrument, convertible, threshold business days		5 days
Debt instrument, convertible, threshold consecutive measurement period		5 days
Debt instrument, convertible, threshold percentage of stock price trigger in measurement period		98.00%
Effective interest rate of debt		6.14%
Debt issuance costs		$ 7,500
Liability issuance costs		5,700
Equity issuance costs		$ 1,800
2017 Convertible Notes [Member] | Warrant [Member]
Debt Instrument [Line Items]
Common stock price per share | $ / shares		$ 92.20
Warrant option holder to purchase common stock | shares		4,731,306
Two Thousand Fifteen Convertible Notes
Debt Instrument [Line Items]
Convertible notes aggregate principal amount		$ 224,500		$ 224,500
Debt instrument interest rate				2.25%
Debt instrument, maturity date		Jun. 01, 2022

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Debt - Schedule of Convertible Notes (Details) - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2017	May 31, 2017	Jun. 30, 2015
2017 Convertible Notes [Member]
Debt Instrument [Line Items]
Remaining life in months		83 months
Gross proceeds		$ 289,000	$ 289,000
Less: debt discount, net of amortization		(69,271)
Less: debt issuance cost, net of amortization		(5,592)
Net carrying amount		214,137
Equity component	[1]	$ 70,140
Two Thousand Fifteen Convertible Notes
Debt Instrument [Line Items]
Remaining life in months		59 months
Gross proceeds		$ 224,500		$ 224,500
Less: debt discount, net of amortization		(39,587)
Less: debt issuance cost, net of amortization		(3,799)
Net carrying amount		181,114
Equity component	[1]	$ 52,903

[1] Included in Additional paid-in capital on the consolidated balance sheet as of June 30, 2017.

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Debt - Summary of Interest Expense Recognized (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Short Term Debt [Line Items]
Total interest expense recognized	$ 24,670	$ 20,938	$ 46,194	$ 42,240
Convertible Notes
Short Term Debt [Line Items]
Contractual interest coupon	1,850	1,263	3,113	2,526
Amortization of debt discount	2,567	1,592	4,238	3,159
Amortization of debt issuance costs	251	168	424	335
Total interest expense recognized	$ 4,668	$ 3,023	$ 7,775	$ 6,020

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Debt - Revolving Credit Facility - Additional Information (Details) - Revolver [Member] - USD ($)	1 Months Ended
	Dec. 31, 2016	Jun. 30, 2017
Debt Instrument [Line Items]
Term of revolving credit facility	3 years
Borrowing capacity	$ 150,000,000
Outstanding balance		$ 0
Unused availability		$ 142,000,000

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Commitments - Additional Information (Details) $ in Millions	Jun. 30, 2017 USD ($)
Commitments And Contingencies Disclosure [Abstract]
Flight equipment purchase commitment	$ 176.2
Estimated payments during the remainder of fiscal year	$ 105.7

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Income Taxes - Additional Information (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Reconciliation of differences between the U.S. federal statutory income tax rate and the effective income tax rates
Effective income tax rate	21.60%	26.40%	22.40%	26.80%

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Financial Instruments - Summary of Carrying Value, Estimated Fair Value and Classification of Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	May 04, 2016
Assets
Short-term investments	$ 7,920	$ 4,313
Restricted cash	11,092	14,360
Long-term investments and accrued interest	23,008	27,951
Liabilities
Amazon Warrant	91,000	92,400	$ 92,900
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Assets
Cash and cash equivalents	271,655	123,890
Short-term investments	7,920	4,313
Restricted cash	11,092	14,360
Long-term investments and accrued interest	23,008	27,951
Financial instruments assets	313,675	170,514
Liabilities
Term loans and notes	1,719,099	1,674,013
Convertible notes	395,251	177,398
Amazon Warrant	87,225	95,775
Financial instruments liabilities	2,201,575	1,947,186
Estimate of Fair Value, Fair Value Disclosure [Member]
Assets
Cash and cash equivalents	271,655	123,890
Short-term investments	7,920	4,313
Restricted cash	11,092	14,360
Long-term investments and accrued interest	27,146	33,161
Financial instruments assets	317,813	175,724
Liabilities
Term loans and notes	1,799,266	1,739,744
Convertible notes	548,851	228,429
Amazon Warrant	87,225	95,775
Financial instruments liabilities	2,435,342	2,063,948
Fair Value, Inputs, Level 1 [Member]
Assets
Cash and cash equivalents	271,655	123,890
Short-term investments	0	0
Restricted cash	11,092	14,360
Long-term investments and accrued interest	0	0
Financial instruments assets	282,747	138,250
Liabilities
Term loans and notes	0	0
Convertible notes	548,851	228,429
Amazon Warrant	0	0
Financial instruments liabilities	548,851	228,429
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	0
Financial instruments assets	0	0
Liabilities
Term loans and notes	0	0
Convertible notes	0	0
Amazon Warrant	87,225	95,775
Financial instruments liabilities	87,225	95,775
Fair Value, Inputs, Level 3 [Member]
Assets
Cash and cash equivalents	0	0
Short-term investments	7,920	4,313
Restricted cash	0	0
Long-term investments and accrued interest	27,146	33,161
Financial instruments assets	35,066	37,474
Liabilities
Term loans and notes	1,799,266	1,739,744
Convertible notes	0	0
Amazon Warrant	0	0
Financial instruments liabilities	$ 1,799,266	$ 1,739,744

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Financial Instruments - Summary of Carrying Value, Gross Unrealized Gain (Loss) and Fair Value of Long-Term Investments and Accrued Interest by Contractual Maturity (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Debt securities
Due after one but within five years, carrying value	$ 23,008	$ 27,951
Total, carrying value	23,008	27,951
Due after one but within five years, gross unrealized gain (loss)	4,138	5,210
Total, gross unrealized gain	4,138	5,210
Due after one but within five years, fair value	27,146	33,161
Total, fair value	$ 27,146	$ 33,161

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Segment Reporting - Additional Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($) Segment	Jun. 30, 2016 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments | Segment			3
Operating Revenue	$ 517,366	$ 443,272	$ 992,761	$ 861,887
DHL [Member]
Segment Reporting Information [Line Items]
Operating Revenue	61,600	47,000	116,500	70,600
Charter [Member]
Segment Reporting Information [Line Items]
Operating Revenue	255,820	202,451	499,718	404,754
Charter [Member] | AMC Charter [Member]
Segment Reporting Information [Line Items]
Operating Revenue	$ 140,700	$ 119,600	$ 272,600	$ 230,700

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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, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Operating Revenue:
Operating Revenue	$ 517,366	$ 443,272	$ 992,761	$ 861,887
Customer incentive asset amortization	(898)	0	(1,343)	0
Other	4,705	4,033	9,196	9,413
Direct Contribution:
Total Direct Contribution for Reportable Segments	100,069	77,224	162,941	133,149
Unallocated income and expenses, net	(62,746)	(58,503)	(118,955)	(106,048)
Loss on early extinguishment of debt	0	0	0	(132)
Unrealized gain on financial instruments	13,763	26,475	8,550	26,475
Special charge	0	0	0	(6,631)
Transaction-related expenses	(1,396)	(16,788)	(2,312)	(17,581)
Gain on disposal of aircraft	93	0	147	0
Income from continuing operations before income taxes	49,783	28,408	50,371	29,232
Interest income	(1,342)	(1,405)	(2,598)	(3,009)
Interest expense	24,670	20,938	46,194	42,240
Capitalized interest	(1,931)	(690)	(3,711)	(1,047)
Unrealized gain on financial instruments	(13,763)	(26,475)	(8,550)	(26,475)
Other expense (income)	1,061	48	809	(192)
Operating Income	58,478	20,824	82,515	40,881
ACMI [Member]
Operating Revenue:
Operating Revenue	229,179	211,722	429,873	394,462
Direct Contribution:
Total Direct Contribution for Reportable Segments	53,524	45,490	89,487	70,230
Charter [Member]
Operating Revenue:
Operating Revenue	255,820	202,451	499,718	404,754
Direct Contribution:
Total Direct Contribution for Reportable Segments	36,884	24,856	54,070	45,633
Dry Leasing [Member]
Operating Revenue:
Operating Revenue	28,560	25,066	55,317	53,258
Direct Contribution:
Total Direct Contribution for Reportable Segments	$ 9,661	$ 6,878	$ 19,384	$ 17,286

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Labor and Legal Proceedings - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended		6 Months Ended
	Jan. 31, 2017	Jan. 31, 2016	Jun. 30, 2017	Dec. 31, 2016
Loss Contingencies [Line Items]
Total legal settlement accrued for the U. S. class action			$ 30.0
Matters Related to Alleged Pricing Practices [Member]
Loss Contingencies [Line Items]
Payment for legal settlement	$ 35.0	$ 35.0
Legal settlement to be paid in 2018			30.0
Brazilian Customs Claim [Member]
Loss Contingencies [Line Items]
Brazilian claims in the aggregate			9.2
Amounts on deposit for Brazilian claims included in deferred costs and other assets			$ 5.0	$ 5.0
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 - Additional Information (Details) - shares shares in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Earnings Per Share [Abstract]
Anti-dilutive shares related to warrants and stock options that were out of the money	7.8	3.0	7.8	3.0
Restricted shares and units in which performance or market conditions were not satisfied	7.6	7.9	7.6	7.9

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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, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Numerator:
Income from continuing operations, net of taxes	$ 39,044	$ 20,919	$ 39,079	$ 21,390
Less: Unrealized gain on financial instruments, net of tax	(14,293)	(27,513)	(8,869)	(27,513)
Diluted income (loss) from continuing operations, net of tax	$ 24,751	$ (6,594)	$ 30,210	$ (6,123)
Denominator:
Basic EPS weighted average shares outstanding	25,257	24,812	25,210	24,761
Effect of dilutive warrant	1,081	273	1,096	137
Effect of dilutive stock options and restricted stock	453	140	517	138
Diluted EPS weighted average shares outstanding	26,791	25,225	26,823	25,036
Earnings (loss) per share from continuing operations:
Basic	$ 1.55	$ 0.84	$ 1.55	$ 0.86
Diluted	0.92	(0.26)	1.13	(0.24)
Loss per share from discontinued operations:
Basic	0.00	(0.01)	(0.04)	(0.01)
Diluted	0.00	(0.01)	(0.03)	(0.01)
Earnings (loss) per share:
Basic	1.54	0.83	1.51	0.85
Diluted	$ 0.92	$ (0.28)	$ 1.09	$ (0.26)

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Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance			$ 1,517,338
Reclassification to interest expense	$ 402	$ 441	820	$ 895
Income tax expense	(156)	(171)	(318)	(347)
Ending balance	1,593,302		1,593,302
Interest Rate Derivatives
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance			(5,002)	(6,072)
Reclassification to interest expense			820	895
Income tax expense			(318)	(347)
Ending balance	(4,500)	(5,524)	(4,500)	(5,524)
Foreign Currency Translation
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance			9	9
Income tax expense			0	0
Ending balance	9	9	9	9
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance			(4,993)	(6,063)
Reclassification to interest expense			820	895
Income tax expense			(318)	(347)
Ending balance	$ (4,491)	$ (5,515)	$ (4,491)	$ (5,515)

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Accumulated Other Comprehensive Income (Loss) - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Accumulated Other Comprehensive Income Loss [Abstract]
Unamortized realized loss in Accumulated other comprehensive income (loss) related to forward-starting interest rate swaps	$ 7.3		$ 7.3
Net realized losses reclassified into earnings	0.4	$ 0.4	0.8	$ 0.9
Realized losses related to forward-starting interest rate swaps expected to be reclassified into earnings within the next 12 months	$ 1.6		$ 1.6

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Subsequent Events - Additional Information (Details) - USD ($)	1 Months Ended
	Jul. 31, 2017	Jun. 30, 2017
Subsequent Event [Line Items]
Face Value		$ 146,300,000
Subsequent Event | Eighth 2017 Term Loan
Subsequent Event [Line Items]
Issue Date	2017-07
Face Value	$ 12,500,000
Collateral Type	767-300
Original Term	60 months
Interest Rate Type	Fixed
Interest Rate	3.62%