Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 345,689	$ 283,649
Restricted cash	50,008	53,674
Accounts receivable (less allowance for doubtful accounts of $21,173 and $19,463, respectively)	661,901	525,441
Securitized accounts receivable-restricted for securitization investors	394,000	298,000
Prepaid expenses and other current assets	32,988	28,126
Deferred income taxes	5,938	6,464
Total current assets	1,490,524	1,195,354
Property and equipment	108,288	93,902
Less accumulated depreciation and amortization	(59,491)	(48,706)
Net property and equipment	48,797	45,196
Goodwill	1,241,969	926,609
Other intangibles, net	643,938	463,864
Other assets	49,877	90,847
Total assets	3,475,105	2,721,870
Current liabilities:
Accounts payable	567,420	418,609
Accrued expenses	69,054	75,812
Customer deposits	177,511	187,627
Securitization facility	394,000	298,000
Current portion of notes payable and lines of credit	260,890	141,875
Other current liabilities	128,085	20,299
Total current liabilities	1,596,960	1,142,222
Notes payable and other obligations, less current portion	479,082	485,217
Deferred income taxes	225,161	180,609
Total noncurrent liabilities	704,243	665,826
Commitments and contingencies (Note 11)
Stockholders' equity:
Common stock, $0.001 par value; 475,000,000 shares authorized, 117,898,939 shares issued and 82,164,447 shares outstanding at September 30, 2013; and 475,000,000 shares authorized, 116,772,324 shares issued and 81,037,832 shares outstanding at December 31, 2012	117	116
Additional paid-in capital	601,577	542,018
Retained earnings	967,078	750,697
Accumulated other comprehensive loss	(19,207)	(3,346)
Less treasury stock (35,734,492 shares at September 30, 2013 and December 31, 2012)	(375,663)	(375,663)
Total stockholders' equity	1,173,902	913,822
Total liabilities and stockholders' equity	$ 3,475,105	$ 2,721,870