Unaudited Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
OPERATING ACTIVITIES:
Net earnings from continuing operations	$ 17,881	$ 15,161
Net loss from discontinued operations	(390)	(98)
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	41,814	46,249
Pension and post-retirement	2,781	(1,161)
Deferred income taxes	10,722	8,523
Amortization of stock-based compensation	1,816	1,301
Amortization of DHL promissory note	(3,100)	(3,100)
Net (gain) loss on derivative instruments	(662)	3,556
Write-off of unamortized debt issuance costs	0	2,886
Changes in assets and liabilities:
Accounts receivable	3,793	(7,545)
Inventory and prepaid supplies	501	(859)
Accounts payable	(10,625)	9,122
Unearned revenue	6,420	9,679
Accrued expenses, salaries, wages, benefits and other liabilities	(718)	(87)
Pension and post-retirement liabilities	(5,276)	(6,172)
Other	(343)	1,086
NET CASH PROVIDED BY OPERATING ACTIVITIES	64,614	78,541
INVESTING ACTIVITIES:
Capital expenditures	(69,463)	(102,724)
Proceeds from property and equipment	2,482	223
Proceeds from the redemption of interest-bearing investments	0	1,750
NET CASH (USED IN) INVESTING ACTIVITIES	(66,981)	(100,751)
FINANCING ACTIVITIES:
Principal payments on long-term obligations	(5,609)	(198,902)
Proceeds from borrowings	25,000	215,000
Financing fees	0	(2,536)
NET CASH PROVIDED BY FINANCING ACTIVITIES	19,391	13,562
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	17,024	(8,648)
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	30,503	46,543
CASH AND CASH EQUIVALENTS AT END OF PERIOD	47,527	37,895
SUPPLEMENTAL CASH FLOW INFORMATION:
Interest paid, net of amount capitalized	6,257	6,680
Federal alternative minimum and state income taxes paid	271	2,368
SUPPLEMENTAL NON-CASH INFORMATION:
Debt extinguished	3,100	3,100
Accrued capital expenditures	$ 10,351	$ 13,578