Commitments and Contingencies (Legal) (Details) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended
	Aug. 31, 2015	Nov. 30, 2014	Mar. 31, 2016	Jan. 31, 2015
Other commitments
Shareholders (as a percent)			5.00%
Inventory Material
Other commitments
Purchase commitment			$ 13,300
Tests
Other commitments
Purchase commitment				$ 3,600
Supplier One | Inventory Material
Other commitments
Purchase commitment			13,300
Supplier, Aggregate of Other | Inventory Material
Other commitments
Purchase commitment			$ 5,300
Third-party payer
Other commitments
Amount sought		$ 1,900
Settlement amount	$ 1,200