Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Cash flows from operating activities:
Net income	$ 14,503	$ 18,719
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	10,014	6,479
Loss on sale of property and equipment	62	70
Deferred taxes	422	(294)
Stock-based compensation	786	830
Earn-out obligation adjustment	(1,533)	0
Changes in operating assets and liabilities, net of impact of acquisition:
Receivables, net	54,450	37,923
Inventories	(2,807)	0
Other current assets and noncurrent assets	(7,031)	(4,919)
Accounts payable and deferred compensation	(30,699)	(45,767)
Accrued expenses	(7,447)	(3,013)
Other liabilities	5	57
Long-term lease obligations	17	0
Net cash provided by operating activities	30,742	10,085
Cash flows from investing activities:
Purchases of property and equipment	(3,820)	(3,631)
Proceeds from the sale of property and equipment	13	0
Cash paid for acquisitions, net of cash acquired	(174,933)	(29,841)
Earn-out obligation payments	(1,384)	(1,845)
Net cash used in investing activities	(180,124)	(35,317)
Cash flows from financing activities:
Borrowings on loan arrangement	411,473	159,614
Repayments on loan arrangement	(264,812)	(139,614)
Payment of debt financing costs	(1,734)	0
Dividends paid	(993)	(829)
Net cash provided by financing activities	143,934	19,171
Net decrease in cash and cash equivalents	(5,448)	(6,061)
Cash and cash equivalents at beginning of period	5,764	8,024
Cash and cash equivalents at end of period	$ 316	$ 1,963