CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Cash flows from operating activities:
Net (loss) income	$ (980)	$ 9,946	$ (767)	$ 18,058
Adjustments to reconcile net (loss) income to net cash provided by operating activities, including discontinued operations:
Depreciation and amortization	8,504	7,863	17,086	15,544
Amortization of favorable and unfavorable lease intangibles	(507)	(490)	(1,020)	(974)
Provision for losses on accounts receivable	5,341	4,860	10,463	10,504
Loss on sale of assets, including discontinued operations, net	69	0	69	0
Stock-based compensation expense	1,576	1,352	3,808	2,801
Deferred taxes	103	7,944	(157)	9,976
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	(11,428)	(7,185)	(21,209)	(12,578)
Restricted cash	(6)	18	1,375	(1,928)
Prepaid expenses and other assets	573	439	2,325	190
Accounts payable	(4,078)	(1,582)	(10,114)	(3,501)
Accrued compensation and benefits	7,384	(4,018)	2,777	(580)
Accrued self-insurance obligations	68	(2,569)	(2,401)	(3,912)
Income taxes payable	0	(478)	0	0
Other accrued liabilities	2,892	(216)	4,423	(946)
Other long-term liabilities	(2,481)	(492)	(2,254)	(1,218)
Net cash provided by operating activities	7,030	15,392	4,404	31,436
Cash flows from investing activities:
Capital expenditures	(7,868)	(9,319)	(17,829)	(18,156)
Acquisitions, net of cash acquired	0	(356)	(260)	(356)
Net cash used for investing activities	(7,868)	(9,675)	(18,089)	(18,512)
Cash flows from financing activities:
Principal repayments of long-term debt and capital lease obligations	(285)	(2,800)	(575)	(5,598)
Net cash used for financing activities	(285)	(2,800)	(575)	(5,598)
Net (decrease) increase in cash and cash equivalents	(1,123)	2,917	(14,260)	7,326
Cash and cash equivalents at beginning of period	44,771	85,572	57,908	81,163
Cash and cash equivalents at end of period	$ 43,648	$ 88,489	$ 43,648	$ 88,489