Unaudited Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
OPERATING ACTIVITIES:
Net earnings from continuing operations	$ 29,437	$ 10,335
Net loss from discontinued operations	(576)	(74)
Adjustments to reconcile net earnings to net cash provided by operating activities:
Impairment of aircraft	0	22,065
Impairment of goodwill and acquired intangibles	0	5,079
Depreciation and amortization	62,871	68,865
Pension and post-retirement	4,172	(2,688)
Deferred income taxes	17,682	6,794
Amortization of stock-based compensation	2,668	2,165
Amortization of DHL promissory note	(4,650)	(4,650)
Net (gain) loss on derivative instruments	(956)	5,437
Write-off of unamortized debt issuance costs	0	2,886
Changes in assets and liabilities:
Accounts receivable	2,618	(841)
Inventory and prepaid supplies	(2,509)	(1,387)
Accounts payable	(4,811)	(864)
Unearned revenue	4,002	7,629
Accrued expenses, salaries, wages, benefits and other liabilities	3,811	(1,192)
Pension and post-retirement liabilities	(24,689)	(13,828)
Other	(2,106)	1,145
NET CASH PROVIDED BY OPERATING ACTIVITIES	86,964	106,876
INVESTING ACTIVITIES:
Capital expenditures	(108,339)	(162,557)
Proceeds from property and equipment	3,484	441
Proceeds from the redemption of interest-bearing investments	0	1,750
NET CASH (USED IN) INVESTING ACTIVITIES	(104,855)	(160,366)
FINANCING ACTIVITIES:
Principal payments on long-term obligations	(9,399)	(201,738)
Proceeds from borrowings	25,000	240,000
Financing fees	0	(2,536)
NET CASH PROVIDED BY FINANCING ACTIVITIES	15,601	35,726
NET (DECREASE) IN CASH AND CASH EQUIVALENTS	(2,290)	(17,764)
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	30,503	46,543
CASH AND CASH EQUIVALENTS AT END OF PERIOD	28,213	28,779
SUPPLEMENTAL CASH FLOW INFORMATION:
Interest paid, net of amount capitalized	9,240	9,470
Federal alternative minimum and state income taxes paid	272	2,348
SUPPLEMENTAL NON-CASH INFORMATION:
Debt extinguished	4,650	4,650
Accrued capital expenditures	$ 15,390	$ 12,408