Balance Sheet Details

12 Months Ended

Dec. 31, 2012

Balance Sheet Details

10. Balance Sheet Details

	December 31,
	2012		2011
Prepaid expenses and other current assets
Prepaid expenses	$	27,647	$	22,566
Other current assets		8,701		7,882
Income tax receivable		14,003		10,081
	$	50,351	$	40,529
Accounts payable, accrued expenses and other
Accounts payable	$	10,139	$	14,327
Accrued expenses		44,424		41,474
Accrued contingent consideration		8,201		21,578
Accrued interest payable		9,048		14,369
Accrued taxes payable		11,114		14,950
Other current liabilities		15,183		26,075
	$	98,109	$	132,773