Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Operating activities
Net income	$ 64,662	$ 42,079
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation	4,031	3,119
Stock-based compensation	4,162	3,834
Provision for losses on accounts receivable	4,460	4,957
Amortization of deferred financing costs	760	510
Amortization of intangible assets	9,022	7,276
Amortization of premium on receivables	816	816
Deferred income taxes	(1,012)	(17)
Changes in operating assets and liabilities (net of acquisitions):
Restricted cash	4,327	(1,447)
Accounts receivable	(192,483)	(183,976)
Prepaid expenses and other current assets	3,194	(1,889)
Other assets	40,113	(37,821)
Excess tax benefits related to stock-based compensation	(5,843)	(8,883)
Accounts payable, accrued expenses and customer deposits	50,101	57,508
Net cash used in operating activities	(13,690)	(113,934)
Investing activities
Acquisitions, net of cash acquired	(94,773)	(10)
Purchases of property and equipment	(4,762)	(3,563)
Net cash used in investing activities	(99,535)	(3,573)
Financing activities
Excess tax benefits related to stock-based compensation	5,843	8,883
Proceeds from issuance of common stock	5,256	7,737
Borrowings on securitization facility, net	87,000	61,000
Deferred financing costs paid	(1,830)	(681)
Principal payments on notes payable	(7,500)	(3,750)
Payments on revolver	(25,000)	(110,000)
Borrowings from revolver		85,000
Borrowings from swing line of credit, net		63,960
Other	(178)
Net cash provided by financing activities	63,591	112,149
Effect of foreign currency exchange rates on cash	(9,402)	7,318
Net (decrease) increase in cash and cash equivalents	(59,036)	1,960
Cash and cash equivalents, beginning of period	283,649	285,159
Cash and cash equivalents, end of period	224,613	287,119
Supplemental cash flow information
Cash paid for interest	3,863	4,028
Cash paid for income taxes	$ 38,426	$ 6,004