Organization and Summary of Significant Accounting Policies (Details) $ in Millions		9 Months Ended
	Sep. 22, 2017	Sep. 30, 2017 segment location	Sep. 30, 2017 product location	Sep. 30, 2017 item location	Dec. 31, 2016 USD ($)
Organization Consolidation and Summary of Significant Accounting Policies
Minimum annual net revenues | $					$ 269
Number of product categories | product			2
Number of reporting units		2		2
Number of locations in which manufacturing facilities are operated | location		3	3	3
OPC License Agreement
Organization Consolidation and Summary of Significant Accounting Policies
Agreement term	3 years
Royalty receivable (as percent)	3.00%