CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Cash Flows from Operating Activities:
Net income	$ 52,102	$ 28,448
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on sale of discontinued operations, net of income taxes	(14,412)	0
Depreciation and amortization	21,658	16,023
Stock-based compensation	10,410	6,574
Write-off of loan costs	14,958	813
Gross excess tax benefits from stock-based compensation	(4,091)	(2,713)
Workers’ compensation and medical malpractice provision	5,119	2,827
Other	1,069	(412)
Changes in operating assets and liabilities, net of effects of acquisitions and divestiture:
Accounts receivable	(33,992)	(24,232)
Prepaid expenses and income taxes	(3,655)	(826)
Accounts payable	(385)	801
Accrued payroll and contract professional pay	19,927	(20,984)
Deferred compensation	(4,850)	(517)
Other	2,780	7,185
Net cash provided by operating activities	73,948	14,639
Cash Flows from Investing Activities:
Cash paid for property and equipment	(12,293)	(10,883)
Cash received from sale of discontinued operations, net	31,922	0
Payments to Acquire Businesses, Net of Cash Acquired	0	(347,743)
Other	(1,601)	(1,885)
Net cash provided by (used in) investing activities	18,028	(360,511)
Cash Flows from Financing Activities:
Principal payments of long-term debt	(452,275)	(160,663)
Proceeds from Issuance of Long-term Debt	383,500	513,000
Proceeds from stock transactions	6,723	6,439
Payments of employment taxes related to release of restricted stock awards	(6,573)	(2,312)
Gross excess tax benefits from stock-based compensation	4,091	2,713
Debt issuance costs	(6,559)	(17,103)
Payments of accrued earn-outs	(3,425)	0
Other	(14)	(32)
Net cash provided by financing activities	(74,532)	342,042
Effect of exchange rate changes on cash and cash equivalents	154	(36)
Net Increase in Cash and Cash Equivalents	17,598	(3,866)
Cash and Cash Equivalents at Beginning of Year	27,479	17,739
Cash and Cash Equivalents at End of Period	45,077	13,873
Supplemental Disclosure of Cash Flow Information:
Income taxes	19,809	25,304
Interest	11,944	9,587
Supplemental Disclosure of Non-Cash Transactions:
Acquisition of property and equipment through accounts payable	981	745
Goodwill, Purchase Accounting Adjustments	0	(982)
Stock Issued	$ 0	$ (225,558)