Accounts Payable and Accrued Expenses (Tables)

3 Months Ended

Mar. 31, 2012

Accounts Payable and Accrued Expenses

Summary of accounts payable and accrued expenses

	March 31, 2012		December 31, 2011
Accrued research payables	$	45,997	$	50,721
Accrued compensation and benefits	21,869		50,666
Trade payables	18,904		17,790
Deferred revenue	15,242		15,493
Accrued restructuring	7,914		11,708
Deferred compensation	5,079		7,579
Accrued transaction processing	3,034		2,986
Other	25,047		24,281
Total	$	143,086	$	181,224