Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012		Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 283,649		$ 285,159
Restricted cash	53,674		55,762
Accounts receivable (less allowance for doubtful accounts of $19,463 and $15,315, respectively)	525,441		481,791
Securitized accounts receivable-restricted for securitization investors	298,000		280,000
Prepaid expenses and other current assets	28,126		15,416
Deferred income taxes	6,464		6,140
Total current assets	1,195,354		1,124,268
Property and equipment	93,902		93,380
Less accumulated depreciation and amortization	(48,706)		(60,656)
Net property and equipment	45,196		32,724
Goodwill	926,609		760,736
Other intangibles, net	463,864		385,607
Other assets	90,847		45,834
Total assets	2,721,870		2,349,169
Current liabilities:
Accounts payable	418,609		478,882
Accrued expenses	75,812		41,565
Customer deposits	187,627		180,269
Securitization facility	298,000	[1]	280,000	[1]
Current portion of notes payable and other obligations	162,174		145,836
Total current liabilities	1,142,222		1,126,552
Notes payable and other obligations, less current portion	485,217		278,429
Deferred income taxes	180,609		132,752
Total noncurrent liabilities	665,826		411,181
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, 2012 and 2011
Common stock, $0.001 par value; 475,000,000 shares authorized, 116,772,324 shares issued and 81,037,832 shares outstanding at December 31, 2012; and 113,741,883 shares issued and 81,860,213 shares outstanding at December 31, 2011	116		114
Additional paid-in capital	542,018		466,203
Retained earnings	750,697		534,498
Accumulated other comprehensive loss	(3,346)		(13,716)
Less treasury stock (35,734,492 shares at December 31, 2012 and 31,881,670 shares at December 31, 2011)	(375,663)		(175,663)
Total stockholders' equity	913,822		811,436
Total liabilities and stockholders' equity	$ 2,721,870		$ 2,349,169

[1] The Company is party to a receivables purchase agreement (Securitization Facility) that was amended and restated for the fourth time as of October 29, 2007 and which has been amended eight times since then to add or remove purchasers, extend the facility termination date and remove all financial covenants. The current purchase limit under the Securitization Facility is $500 million. The Securitization Facility was amended for the eighth time on February 4, 2013 to extend the facility termination date to February 3, 2014. There is a program fee equal to the Commercial Paper Rate of 0.24%, plus 0.75% and 0.24% plus 0.675% as of December 31, 2012 and February 4, 2013, respectively. The unused facility fee is payable at a rate of 0.35% per annum as of December 31, 2012 and 0.30% per annum as of February 4, 2013. The Securitization Facility provides for certain termination events, which includes nonpayment, upon the occurrence of which the administrator may declare the facility termination date to have occurred, may exercise certain enforcement rights with respect to the receivables, and may appoint a successor servicer, among other things.