Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 297,642	$ 338,105
Restricted cash	46,153	48,244
Accounts receivable (less allowance for doubtful accounts of $22,754 and $22,416, respectively)	688,527	573,351
Securitized accounts receivable-restricted for securitization investors	424,400	349,000
Prepaid expenses and other current assets	61,917	40,062
Deferred income taxes	4,415	4,750
Total current assets	1,523,054	1,353,512
Property and equipment	125,195	111,100
Less accumulated depreciation and amortization	(68,695)	(57,144)
Net property and equipment	56,500	53,956
Goodwill	1,572,930	1,552,725
Other intangibles, net	848,635	871,263
Equity method investment	162,383
Other assets	89,863	100,779
Total assets	4,253,365	3,932,235
Current liabilities:
Accounts payable	573,482	467,202
Accrued expenses	124,027	114,870
Customer deposits	193,604	182,541
Securitization facility	424,400	349,000
Current portion of notes payable and lines of credit	596,749	662,439
Other current liabilities	115,726	132,846
Total current liabilities	2,027,988	1,908,898
Notes payable and other obligations, less current portion	450,207	474,939
Deferred income taxes	245,984	249,504
Other noncurrent liabilities	53,666	55,001
Total noncurrent liabilities	749,857	779,444
Commitments and contingencies (Note 11)
Stockholders' equity:
Common stock, $0.001 par value; 475,000,000 shares authorized; 118,785,091 shares issued and 83,050,599 shares outstanding at June 30, 2014; and 118,206,262 shares issued and 82,471,770 shares outstanding at December 31, 2013	118	117
Additional paid-in capital	676,876	631,667
Retained earnings	1,198,856	1,035,198
Accumulated other comprehensive loss	(24,667)	(47,426)
Less treasury stock (35,734,492 shares at June 30, 2014 and December 31, 2013)	(375,663)	(375,663)
Total stockholders' equity	1,475,520	1,243,893
Total liabilities and stockholders' equity	$ 4,253,365	$ 3,932,235