CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash Flows from Operating Activities:
Net income (loss)	$ 17,158	$ (23,959)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	9,448	11,152
Provision for doubtful accounts	8,193	5,732
Non-cash compensation	7,806	4,577
401(k) employer match	3,440	3,454
Loss on disposal of property and equipment	522	530
Deferred income taxes	11,362	(14,788)
Equity in earnings from equity method investments	(358)	(6,777)
Amortization of deferred debt issuance costs/debt discount	370	553
Return on equity investment	362	4,638
Asset impairment charge	0	75,193
Changes in operating assets and liabilities, net of impact of acquisitions:
Patient accounts receivable	(30,349)	(16,861)
Other current assets	5,551	3,849
Other assets	(11,943)	(1,160)
Accounts payable	8,608	6,163
Accrued expenses	(2,811)	4,189
Other long-term obligations	(464)	552
Net cash provided by operating activities	26,895	57,037
Cash Flows from Investing Activities:
Proceeds from sale of deferred compensation plan assets	230	1,026
Purchases of deferred compensation plan assets	0	(19)
Purchases of property and equipment	(9,915)	(16,668)
Purchase of Investment	(432)	(1,161)
Proceeds from sale of investment	0	5,000
Acquisitions of businesses, net of cash acquired	(27,634)	0
Net cash used in investing activities	(37,751)	(11,822)
Cash Flows from Financing Activities:
Proceeds from issuance of stock upon exercise of stock options and warrants	0	195
Proceeds from issuance of stock to employee stock purchase plan	1,207	1,059
Tax benefit from stock options exercised and restricted stock vesting	7,130	0
Non-controlling interest distribution	(200)	(300)
Proceeds from revolving line of credit	84,000	63,400
Repayments of revolving line of credit	(84,000)	(78,400)
Principal payments of long-term obligations	(2,500)	(6,000)
Purchase of company stock	(12,315)	0
Net cash used in financing activities	(6,678)	(20,046)
Net (decrease) increase in cash and cash equivalents	(17,534)	25,169
Cash and cash equivalents at beginning of period	27,502	8,032
Cash and cash equivalents at end of period	9,968	33,201
Supplemental Disclosures of Cash Flow Information:
Cash paid for interest	1,359	3,598
Cash paid for income taxes, net of refunds received	$ 825	$ (2,496)