Unaudited Condensed Consolidated Statements of Cash Flows (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
OPERATING ACTIVITIES:
Net earnings from continuing operations	$ 15,161	$ 16,665
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	(98)	172
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	46,249	42,552
Pension and post-retirement	(1,161)	(503)
Deferred income taxes	8,523	9,640
Amortization of stock-based compensation	1,301	631
Amortization of DHL promissory note	(3,100)	(1,550)
Write-off of unamortized debt issuance costs	2,886	0
Unrealized loss on derivative instruments	3,556	0
Gains on asset disposition, net of impairments	8	(8)
Changes in assets and liabilities:
Accounts receivable	(7,545)	40,613
Inventory and prepaid supplies	(859)	(903)
Accounts payable	9,122	(4,851)
Unearned revenue	9,679	15,685
Accrued expenses, salaries, wages, benefits and other liabilities	(87)	(32,558)
Pension and post-retirement liabilities	(6,172)	(27,518)
Other	1,078	1,413
NET CASH PROVIDED BY OPERATING ACTIVITIES	78,541	59,480
INVESTING ACTIVITIES:
Capital expenditures	(102,724)	(58,344)
Proceeds from the disposal of property and equipment	223	31,115
Proceeds from the redemption of interest-bearing investments	1,750	0
NET CASH (USED IN) INVESTING ACTIVITIES	(100,751)	(27,229)
FINANCING ACTIVITIES:
Principal payments on long-term obligations	(198,902)	(51,820)
Proceeds from borrowings	215,000	0
Financing fees	(2,536)	0
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	13,562	(51,820)
NET (DECREASE) IN CASH AND CASH EQUIVALENTS	(8,648)	(19,569)
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	46,543	83,229
CASH AND CASH EQUIVALENTS AT END OF PERIOD	37,895	63,660
SUPPLEMENTAL CASH FLOW INFORMATION:
Interest paid, net of amount capitalized	6,680	9,151
Federal alternative minimum and state income taxes paid	2,368	325
SUPPLEMENTAL NON-CASH INFORMATION:
Debt extinguished	3,100	1,550
Accrued capital expenditures	$ 13,578	$ 338