Summary of Significant Accounting Policies - Recently Adopted Accounting Standards (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2019	Jan. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease right-of-use assets		$ 13.9
Operating lease liability		$ 14.9
Accounting Standards Update 2017-07 | Cost of Products Sold
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net periodic benefit expense	$ 1.5
Accounting Standards Update 2017-07 | Selling, General and Administrative Expenses
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net periodic benefit expense	$ 1.2
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease right-of-use assets			$ 16.0
Operating lease liability			$ 17.0