CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
OPERATING ACTIVITIES
Net loss	$ (13,395)	$ (18,162)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	22,150	19,320
Amortization of intangibles	1,043
Share-based compensation expense	1,303	1,442
Provision for losses on accounts receivable	969	275
Deferred income tax benefit	(8,756)	(4,301)
Gain on sale of property and equipment	(212)	(285)
Changes in operating assets and liabilities:
Receivables	(9,886)	(859)
Prepaid expenses	(2,042)	(1,621)
Other assets	(964)	(96)
Income taxes	(1,548)	1,793
Accounts payable, accrued expenses, and other liabilities	11,124	7,371
NET CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES	(214)	4,877
INVESTING ACTIVITIES
Purchases of property, plant and equipment	(3,440)	(2,388)
Proceeds from sale of property and equipment	842	1,315
Purchases of short-term investments	(3,752)	(14,335)
Proceeds from sale of short-term investments	2,940	3,185
Capitalization of internally developed software and other	(2,090)	(1,618)
NET CASH USED IN INVESTING ACTIVITIES	(5,500)	(13,841)
FINANCING ACTIVITIES
Payments on long-term debt	(10,955)	(6,075)
Net change in bank overdraft and other	(1,909)	(10,056)
Net change in restricted cash, cash equivalents, and short-term investments	3,754	23,149
Deferred financing costs		(36)
Payment of common stock dividends	(807)	(797)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	(9,917)	6,185
NET DECREASE IN CASH AND CASH EQUIVALENTS	(15,631)	(2,779)
Cash and cash equivalents at beginning of period	90,702	141,295
CASH AND CASH EQUIVALENTS AT END OF PERIOD	75,071	138,516
NONCASH INVESTING ACTIVITIES
Accruals for equipment received	$ 173	$ 2,060