Commitments and Contingencies - Legal (Details) $ in Millions		1 Months Ended	9 Months Ended
	Jun. 02, 2015 USD ($)	Aug. 31, 2015 USD ($)	Sep. 30, 2016 USD ($) lawsuit
Other commitments
Shareholders (as a percent)			5.00%
Number of purported class action lawsuits filed | lawsuit			4
Supplier One | Inventory Material
Other commitments
Purchase commitment			$ 6.8
Supplier, Aggregate of Other | Inventory Material
Other commitments
Purchase commitment			$ 1.1
Third-party payer
Other commitments
Amount sought	$ 1.9
Settlement amount		$ 1.2