Accrued Expenses (Tables)

6 Months Ended

Jun. 30, 2020

Payables And Accruals [Abstract]

Schedule of Accrued Liabilities / Expenses

Accrued expenses as of June 30, 2020 and December 31, 2019 consisted of the following (in thousands):

	June 30, 2020		December 31, 2019
Accrued milestone payments	$	98,606	$	—
Payroll-related expenses		85,982		84,516
Income taxes payable		66,418		2,541
Consulting and professional services		39,513		32,423
Allowances for returns		39,155		45,082
Accrued royalties		32,634		19,985
Accrued interest		15,821		18,709
Pricing review liability		13,375		9,831
Accrued other		24,041		22,147
Accrued expenses	$	415,545	$	235,234