Unaudited Condensed Consolidated Statements of Cash Flows (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
OPERATING ACTIVITIES:
Net earnings from continuing operations	$ 10,335	$ 28,053
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	(74)	(58)
Adjustments to reconcile net earnings to net cash provided by operating activities:
Impairment of aircraft	22,065	0
Impairment of goodwill and acquired intangibles	5,079	0
Depreciation and amortization	68,865	65,310
Pension and post-retirement	(2,688)	(1,144)
Deferred income taxes	6,794	14,864
Amortization of stock-based compensation	2,165	1,230
Amortization of DHL promissory note	(4,650)	(3,100)
Write-off of unamortized debt issuance costs	2,886	0
Unrealized loss on derivative instruments	5,437	0
Changes in assets and liabilities:
Accounts receivable	(841)	40,080
Inventory and prepaid supplies	(1,387)	(2,730)
Accounts payable	(864)	(311)
Unearned revenue	7,629	11,966
Accrued expenses, salaries, wages, benefits and other liabilities	(1,192)	(40,895)
Pension and post-retirement liabilities	(13,828)	(33,020)
Other	1,145	1,419
NET CASH PROVIDED BY OPERATING ACTIVITIES	106,876	81,664
INVESTING ACTIVITIES:
Capital expenditures	(162,557)	(90,741)
Proceeds from the disposal of property and equipment	441	31,497
Proceeds from the redemption of interest-bearing investments	1,750	0
NET CASH (USED IN) INVESTING ACTIVITIES	(160,366)	(59,244)
FINANCING ACTIVITIES:
Principal payments on long-term obligations	(201,738)	(61,184)
Proceeds from borrowings	240,000	0
Financing fees	(2,536)	0
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	35,726	(61,184)
NET (DECREASE) IN CASH AND CASH EQUIVALENTS	(17,764)	(38,764)
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	46,543	83,229
CASH AND CASH EQUIVALENTS AT END OF PERIOD	28,779	44,465
SUPPLEMENTAL CASH FLOW INFORMATION:
Interest paid, net of amount capitalized	9,470	12,591
Federal alternative minimum and state income taxes paid	2,348	367
SUPPLEMENTAL NON-CASH INFORMATION:
Debt extinguished	4,650	3,100
Accrued capital expenditures	$ 12,408	$ 1,215