Commitments and Contingencies (Purchase Contracts) (Details) - USD ($) $ in Thousands	Sep. 17, 2015	Sep. 30, 2017	Oct. 01, 2016
Loss Contingency, Estimate
Minimum payments		$ 32,681
Yarn
Loss Contingency, Estimate
Minimum payments		6,679
Finished fabric
Loss Contingency, Estimate
Minimum payments		5,142
Finished products
Loss Contingency, Estimate
Minimum payments		20,860
The Sports Authority Bankruptcy Litigation \| Minimum
Loss Contingency, Estimate
Range of possible loss		0
The Sports Authority Bankruptcy Litigation \| Maximum
Loss Contingency, Estimate
Range of possible loss		$ 3,300
California Wage and Hour Litigation
Loss Contingency, Estimate
Amount awarded to other party	$ 200
Delta Apparel, Soffe and Junkfood \| California Wage and Hour Litigation
Loss Contingency, Estimate
Amount awarded to other party	$ 300
Pending Litigation \| California Wage and Hour Litigation
Loss Contingency, Estimate
Range of possible loss			$ 900