CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - Scenario, Unspecified - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015		Jun. 30, 2014
Write off of Deferred Debt Issuance Cost	$ 3,751		$ 0
Cash Flows from Operating Activities:
Net income	53,387		34,706
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on sale of discontinued operations, net of income taxes	(25,703)		0
Depreciation and amortization	19,813		18,463
Stock-based compensation	9,190		7,285
Gross excess tax benefits from stock-based compensation	(2,640)		(3,217)
Fair value adjustment for contingent consideration	512		0
Workers’ compensation and medical malpractice provision	993		2,505
Other	935		706
Changes in operating assets and liabilities, net of effects of divestiture:
Accounts receivable	(24,401)		(37,067)
Prepaid expenses and income taxes	7,165		1,461
Accounts payable	(158)		(2,872)
Accrued payroll and contract professional pay	13,293		8,125
Income taxes payable	(10,165)		(4,414)
Workers’ compensation and medical malpractice loss reserves	(834)		(835)
Other	2,506		(3,074)
Net cash provided by operating activities	52,420		25,009
Amortization of Financing Costs	4,776		3,237
Cash Flows from Investing Activities:
Cash paid for property and equipment	(13,331)		(9,638)
Cash received from sale of discontinued operations, net	115,440		0
Payments to Acquire Businesses, Net of Cash Acquired	(552,794)		48
Other	(584)		358
Net cash used in investing activities	(451,269)		(9,232)
Cash Flows from Financing Activities:
Principal payments of long-term debt	(440,125)		(122,563)
Proceeds from long-term debt	875,000		99,500
Proceeds from option exercises and employee stock purchase plan	3,802		3,268
Payment of employment taxes related to release of restricted stock awards	(5,537)		(4,544)
Gross excess tax benefits from stock-based compensation	2,640		3,217
Repurchase of common stock	(1,645)		0
Debt issuance or amendment costs	(23,893)		(446)
Payments of accrued earn-outs	0		(691)
Net cash provided by (used in) financing activities	410,242		(22,259)
Effect of exchange rate changes on cash and cash equivalents	(1,244)		(115)
Net Increase (Decrease) in Cash and Cash Equivalents	10,149		(6,597)
Cash and Cash Equivalents at Beginning of Year	31,714	[1]	37,350
Cash and Cash Equivalents at End of Period	41,863		30,753
Supplemental Disclosure of Cash Flow Information:
Income taxes	20,418		29,175
Interest	6,798		5,899
Supplemental Disclosure of Non-Cash Transactions:
Acquisition of property and equipment through accounts payable	$ 1,627		$ 639

[1] Cash and cash equivalents at December 31, 2014 include $2.9 million from the Physician Segment (see "Note 4. Discontinued Operations").