Accounts Payable and Accrued Expenses (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Accounts payable
Accounts payable	$ 8.1	$ 7.5
Accrued expenses:
Sales related (royalties, rebates and fees)	55.7	52.8
Payroll related	30.6	31.4
Other	9.8	11.7
Total accrued expenses	96.1	95.9
Total accounts payable and accrued expenses	$ 104.2	$ 103.4