Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 338,105	$ 283,649
Restricted cash	48,244	53,674
Accounts receivable (less allowance for doubtful accounts of $22,416 and $19,463, respectively)	573,351	525,441
Securitized accounts receivable-restricted for securitization investors	349,000	298,000
Prepaid expenses and other current assets	40,062	28,126
Deferred income taxes	4,750	6,464
Total current assets	1,353,512	1,195,354
Property and equipment	111,100	93,902
Less accumulated depreciation and amortization	(57,144)	(48,706)
Net property and equipment	53,956	45,196
Goodwill	1,552,725	926,609
Other intangibles, net	871,263	463,864
Other assets	100,779	90,847
Total assets	3,932,235	2,721,870
Current liabilities:
Accounts payable	467,202	418,609
Accrued expenses	114,870	75,812
Customer deposits	182,541	187,627
Securitization facility	349,000	298,000
Current portion of notes payable and lines of credit	662,439	141,875
Other current liabilities	132,846	20,299
Total current liabilities	1,908,898	1,142,222
Notes payable and other obligations, less current portion	474,939	485,217
Deferred income taxes	249,504	180,609
Other noncurrent liabilities	55,001
Total noncurrent liabilities	779,444	665,826
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.001 par value; 25,000,000 shares authorized and no shares issued and outstanding at December 31, 2013 and 2012
Common stock, $0.001 par value; 475,000,000 shares authorized, 118,206,262 shares issued and 82,471,770 shares outstanding at December 31, 2013; and 116,772,324 shares issued and 81,037,832 shares outstanding at December 31, 2012	117	116
Additional paid-in capital	631,667	542,018
Retained earnings	1,035,198	750,697
Accumulated other comprehensive loss	(47,426)	(3,346)
Less treasury stock (35,734,492 shares at December 31, 2013 and 2012)	(375,663)	(375,663)
Total stockholders' equity	1,243,893	913,822
Total liabilities and stockholders' equity	$ 3,932,235	$ 2,721,870