CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash Flows from Operating Activities:
Net loss	$ (97,775)	$ (98,583)	$ (382,342)
Adjustments to reconcile net loss to net cash provided by operating activities:
U.S. Department Of Justice Settlement	150,000	0	0
Depreciation and amortization	37,383	40,059	39,559
Provision for doubtful accounts	16,461	21,728	13,708
Non-cash compensation	6,519	7,217	8,292
401(k) employer match	7,998	10,013	7,550
Loss on disposal of property and equipment	2,742	1,471	2,440
Gain on sale of care centers	(1,752)	0	0
Deferred income taxes	(57,095)	(31,161)	(122,402)
Write off deferred debt issuance costs	121	573	0
Equity in earnings of equity investments	(1,520)	(1,695)	(1,494)
Amortization of deferred debt issuance costs	699	1,442	1,576
Return on equity investment	1,650	1,575	1,638
Goodwill and other intangibles impairment charge	9,492	162,103	579,955
Changes in operating assets and liabilities, net of impact of acquisitions:
Patient accounts receivable	41,578	(42,840)	(6,526)
Other current assets	(501)	10,622	(2,033)
Other assets	(1,596)	(927)	(258)
Accounts payable	(9,876)	8,072	(1,521)
Accrued expenses	(6,104)	(19,994)	5,049
Other long-term obligations	3,839	(181)	(1,981)
Net cash provided by operating activities	102,263	69,494	141,210
Cash Flows from Investing Activities:
Proceeds from sale of deferred compensation plan assets	128	312	985
Proceeds from the sale of property and equipment	1,809	631	0
Purchases of deferred compensation plan assets	(111)	(175)	(545)
Purchases of property and equipment	(41,736)	(48,262)	(44,415)
Purchase of Investment	(10,067)	0	(4,500)
Acquisitions of businesses, net of cash acquired	(1,627)	(12,499)	(132,235)
Proceeds from dispositions of care centers	5,146	0	0
Net cash used in investing activities	(46,458)	(59,993)	(180,710)
Cash Flows from Financing Activities:
Proceeds from issuance of stock upon exercise of stock options and warrants	261	156	245
Proceeds from issuance of stock to employee stock purchase plan	3,181	3,913	5,149
Tax benefit from stock option exercises	57	0	0
Non-controlling interest distribution	(163)	(323)	(700)
Proceeds from revolving line of credit	25,500	0	0
Repayments of revolving line of credit	(25,500)	0	0
Proceeds from issuance of long-term obligations	0	60,000	0
Payment of deferred financing fees	(576)	(2,265)	0
Principal payments of long-term obligations	(55,807)	(104,441)	(37,485)
Net cash used in financing activities	(53,047)	(42,960)	(32,791)
Net increase (decrease) in cash and cash equivalents	2,758	(33,459)	(72,291)
Cash and cash equivalents at beginning of period	14,545	48,004	120,295
Cash and cash equivalents at end of period	17,303	14,545	48,004
Supplemental Disclosures of Cash Flow Information:
Cash paid for interest	3,990	7,779	7,340
Cash paid for income taxes, net of refunds received	3,385	2,945	11,655
Supplemental Disclosures of Non-Cash Financing and Investing Activities
Notes payable issued for/assumed in acquisitions	0	0	1,058
Notes payable issued for software licenses	0	2,214	0
Acquired Noncontrolling Interest	$ 145	$ 15,931	$ 0