Accounts Payable and Accrued Expenses (Tables)

6 Months Ended

Jun. 30, 2012

Accounts Payable and Accrued Expenses

Summary of accounts payable and accrued expenses

	June 30, 2012		December 31, 2011
Accrued research payables	$	45,179	$	50,721
Accrued compensation and benefits	29,658		50,666
Trade payables	20,797		17,790
Deferred revenue	14,092		15,493
Accrued restructuring	6,481		11,708
Deferred compensation	4,793		7,579
Accrued transaction processing	3,011		2,986
Other	24,058		24,281
Total	$	148,069	$	181,224