Summary of Significant Accounting Policies (Details) $ in Millions	12 Months Ended
	Dec. 31, 2016 USD ($) subsidiary manufacturing_facility	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Property, Plant and Equipment
Number of unconsolidated subsidiaries | subsidiary	0
Manufacturing Facility
Property, Plant and Equipment
Manufacturing facilities | manufacturing_facility	48
Selling, General and Administrative Expenses
Property, Plant and Equipment
Shipping, handling and transportation costs | $	$ 51.8	$ 45.8	$ 40.9