CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash Flows from Operating Activities:
Net income	$ 24,613	$ 5,383
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	7,244	2,063
Stock-based compensation	2,724	1,191
Gross excess tax benefits from stock-based compensation	(768)	(913)
Workers’ compensation and medical malpractice provision	1,288	930
Other	502	(127)
Changes in operating assets and liabilities, net of effects of acquisitions and divestiture:
Accounts receivable	(26,113)	(7,729)
Prepaid expenses and income taxes	(2,151)	(1,560)
Accounts payable	(1,089)	1,306
Accrued payroll and contract professional pay	7,203	2,294
Deferred compensation	(4,850)	(631)
Other	5,082	1,646
Net cash provided by operating activities	3,575	6,973
Cash Flows from Investing Activities:
Cash paid for property and equipment	(2,785)	(2,119)
Cash received for sale of discontinued operations, net	28,893	0
Other	(1,689)	48
Net cash provided by (used in) investing activities	24,419	(2,071)
Cash Flows from Financing Activities:
Principal payments of long-term debt	(43,000)	(6,250)
Proceeds from stock transactions	2,443	2,183
Payments of employment taxes related to release of restricted stock awards	(3,611)	(1,941)
Gross excess tax benefits from stock-based compensation	768	913
Other	(20)	(89)
Net cash provided by financing activities	(43,420)	(5,184)
Effect of exchange rate changes on cash and cash equivalents	(279)	228
Net Increase in Cash and Cash Equivalents	(15,705)	(54)
Cash and Cash Equivalents at Beginning of Year	27,479	17,739
Cash and Cash Equivalents at End of Period	11,774	17,685
Supplemental Disclosure of Cash Flow Information:
Income taxes	3,861	1,018
Interest	4,673	630
Supplemental Disclosure of Non-Cash Transactions:
Acquisition of property and equipment through accounts payable	$ 819	$ 618