Commitments and Contingencies (Details) - USD ($) $ in Millions		9 Months Ended
	Mar. 19, 2015	Oct. 31, 2015
Current and Former Employees | United States District Court for Northern District of Alabama Middle Division
Commitments and Contingencies
Accrual for costs		$ 0.0
Equal Employment Opportunity Commission
Commitments and Contingencies
Amount of settlement proposed	$ 1.0
Counter offer for settlement proposed		$ 1.0
Length of proposed reporting obligation to EEOC	2 years