Consolidated Statements Of Cash Flows - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities
Net loss	[1]	$ (352,696)	$ (85,957)	$ (155,654)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation	[1]	72,784	55,211	52,878
Amortization	[1]	13,799	9,885	11,936
Deferred rent expense	[1]	774	973	1,234
Deferred income taxes	[1]	(783)	(28,117)	(3,029)
Stock-based compensation	[1]	106	597	3,257
Provision for doubtful accounts	[1]	19,253	12,146	16,916
Loss on the sale / disposal of property and equipment	[1]	119	336	748
Loss on sale leaseback transaction	[1]	135	313
Impairment loss	[1]	229,526		81,021
Early extinguishment of debt	[1]	8,558		4,473
Equity initial public offering expenses	[1]	4,905
Gain on the sale of an interest in a joint venture	[1]		(1,460)
Amortization of termination of interest rate swap	[1]			958
Write-off of loan costs	[1]			525
Termination of derivative interest rate swap agreements	[1]			(972)
Loss on fair value adjustment of noncontrolling interests-redeemable	[1]			175
Loss on foreign currency transactions	[1]	348	143	33
Gain (Loss) on foreign currency derivative contracts	[1]	(4)	467	1,165
Fair value adjustment of earn-out liability	[1]	1,627	130	1,219
Fair value adjustment of embedded derivative	[1]	837
Amortization of debt discount	[1]	2,483	1,191	798
Amortization of loan costs	[1]	6,277	5,595	5,434
Equity interest in net loss of joint ventures	[1]	50	454	817
Distribution received from unconsolidated joint ventures	[1]	221	21	9
Pension plan contributions	[1]	(1,587)
Changes in operating assets and liabilities:
Accounts receivable and other current assets	[1]	(35,108)	(32,539)	(16,930)
Income taxes payable	[1]	(3,453)	(2,247)	(2,072)
Inventories	[1]	8	(195)	602
Prepaid expenses	[1]	3,677	4,191	3,815
Accounts payable and other current liabilities	[1]	514	29,373	(2)
Accrued deferred compensation	[1]	1,522	1,344	1,339
Accrued expenses / other current liabilities	[1]	11,321	17,124	5,952
Net cash (used in) provided by operating activities	[1]	(14,787)	(11,021)	16,645
Cash flows from investing activities
Purchases of property and equipment	[1]	(56,659)	(40,651)	(30,639)
Acquisition of medical practices	[1]	(50,245)	(68,661)	(25,861)
Restricted cash associated with medical practice acquisitions	[1]	(3,181)	(3,768)	(7)
Proceeds from the sale of equity interest in a joint venture	[1]		1,460
Proceeds from the sale of property and equipment	[1]	96	78	2,987
Loans to employees	[1]	(1,226)	(859)	(621)
Contribution of capital to joint venture entities	[1]	(620)	(992)	(714)
Purchase of noncontrolling interest - non-redeemable	[1]		(1,509)	(1,364)
Proceeds (payment) of foreign currency derivative contracts	[1]	26	(171)	(670)
Premiums on life insurance policies	[1]	(1,265)	(1,234)	(1,313)
Change in other assets and other liabilities	[1]	(765)	(2,212)	370
Net cash used in investing activities	[1]	(113,839)	(118,519)	(57,832)
Cash flows from financing activities
Proceeds from issuance of debt (net of original issue discount of $3.4 million and $2.3 million, respectively)	[1]	169,845	306,063	448,163
Principal repayments of debt	[1]	(268,377)	(171,432)	(383,344)
Repayments of finance obligation	[1]	(278)	(182)	(109)
Proceeds from issuance of Series A convertible redeemable preferred stock	[1]	325,000
Payments of issue costs related to the issuance of preferred stock	[1]	(6,137)
Proceeds from issuance of noncontrolling interest	[1]	1,250
Proceeds from noncontrolling interest holders - redeemable and non-redeemable	[1]	259	765
Cash distributions to noncontrolling interest holders - redeemable and non-redeemable	[1]	(3,599)	(2,211)	(3,920)
Payments of costs for equity securities offering	[1]	(4,905)
Payments of notes receivable from shareholder	[1]			72
Payments of loan costs	[1]	(2,436)	(1,359)	(14,437)
Net cash provided (used in) by financing activities	[1]	210,622	131,644	46,425
Effect of exchange rate changes on cash and cash equivalents	[1]	(42)	(52)	(12)
Net increase in cash and cash equivalents	[1]	81,954	2,052	5,226
Cash and cash equivalents, beginning of period	[1]	17,128	15,076	9,850
Cash and cash equivalents, end of period	[1]	99,082	17,128	15,076
Supplemental disclosure of cash flow information
Interest paid	[1]	101,149	78,750	63,632
Income taxes paid	[1]	7,585	9,364	9,120
Supplemental disclosure of non-cash transactions
Finance obligation related to real estate projects	[1]	7,790	7,580	3,035
Derecognition of finance obligation related to real estate projects	[1]	4,119	3,940
Capital lease obligations related to the purchase of equipment	[1]	17,625	3,054	7,281
Medical equipment and service contract component related to the acquisition of medical equipment through accounts payable	[1]	3,049
Issuance of notes payable related to the acquisition of medical practices	[1]	2,000	2,097
Liability relating to the escrow debt and purchase price of medical practices	[1]	2,970
Capital lease obligations related to the acquisition of medical practices	[1]	47,796	10,903	5,746
Earn-out accrual related to the acquisition of medical practices	[1]	11,052	7,950	400
Amounts payable to sellers in the purchase of a medical practice	[1]	249
Costs incurred for professional fees relating to issuance of equity securities	[1]		1,323
Noncash dividend declared to noncontrolling interest	[1]	194	77	167
Accrued dividends on Series A convertible preferred stock	[1]	12,683
Accretion of Series A convertible redeemable preferred stock to redemption value	[1]	(3,457)
Noncash deconsolidation of noncontrolling interest	[1]		9
Noncash contribution of capital by noncontrolling interest holders	[1]	$ 37	4,235
Termination of prepaid services by noncontrolling interest holder	[1]		2,551
Issuance of notes payable relating to the earn-out liability in the acquisition of Medical Developers	[1]		2,679
Issuance of equity LLC units relating to the earn-out liability in the acquisition of Medical Developers	[1]		705
Issuance of senior secured notes related to the acquisition of medical practices	[1]		75,000
Reserve claim liability related to the acquisition of medical practices	[1]		3,682
Noncash dividend declared from unconsolidated joint venture	[1]		150
Step up in basis of joint venture interest	[1]		$ 83
Property and equipment related to the North Broward Hospital District license	[1]			4,260
Noncash redemption of Parent equity units	[1]			$ 53

[1] As Restated