Consolidated Statements Of Cash Flows (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Operating activities
Net income	$ 69,049	$ 56,984
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	5,531	5,324
Stock-based compensation	11,983	1,738
Provision for losses on accounts receivable	8,771	10,344
Amortization of deferred financing costs	843	944
Amortization of intangible assets	9,187	8,414
Amortization of premium on receivables	1,634	1,632
Deferred income taxes	(765)	211
Loss on early extinguishment of debt	2,669
Changes in operating assets and liabilities (net of acquisitions):
Restricted cash	(667)	10,443
Accounts receivable	(154,408)	(64,712)
Prepaid expenses and other current assets	(4,608)	(9,908)
Other assets	(1,114)	1,825
Excess tax benefits related to stock-based compensation	(1,821)
Accounts payable, accrued expenses and customer deposits	56,170	29,239
Net cash provided by operating activities	2,454	52,478
Investing activities
Acquisitions, net of cash acquired	(785)	(6,836)
Purchases of property and equipment	(5,916)	(4,977)
Net cash used in investing activities	(6,701)	(11,813)
Financing activities
Excess tax benefits related to stock-based compensation	1,821
Borrowings (payments) on securitization facility, net	18,000	(26,000)
Deferred financing costs paid	(7,736)	(1,067)
Proceeds from issuance of common stock	855	454
Principal payments on notes payable	(331,465)	(16,835)
Borrowings from notes payable	300,000
Principal payments on other obligations		(13)
Other	(179)
Net cash used in financing activities	(18,704)	(43,461)
Effect of foreign currency exchange rates on cash	9,347	(9,776)
Net decrease in cash and cash equivalents	(13,604)	(12,572)
Cash and cash equivalents, beginning of period	114,804	84,701
Cash and cash equivalents, end of period	101,200	72,129
Supplemental cash flow information
Cash paid for interest	4,335	11,236
Cash paid for income taxes	20,284	24,922
Adoption of new accounting guidance related to asset securitization facility		$ 218,000