Accounts Payable and Accrued Expenses

12 Months Ended

Dec. 31, 2021

Payables and Accruals [Abstract]

Accounts Payable and Accrued Expenses

Accounts Payable and Accrued Expenses

Accounts payable and accrued expenses consist of the following by major categories (in millions):

	As of December 31,
	2021		2020
Accounts payable	$	3.8	$	4.1
Accrued expenses:
Sales-related (royalties, rebates, and fees)	85.3		84.5
Payroll-related	53.6		47.9
Research and development-related	19.0		27.8
Other	12.9		22.7
Total accrued expenses	$	170.8	$	182.9
Total accounts payable and accrued expenses	$	174.6	$	187.0