Earnings Per Share Earnings (Loss) Per Share Information (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended			6 Months Ended
	Dec. 29, 2019	Dec. 30, 2018	Sep. 30, 2018	Dec. 29, 2019	Dec. 30, 2018
Net Income (Loss)	$ (15,344)	$ (2,604)	$ (48,981)	$ (48,981)	$ (43,591)
Less: Allocation to Participating Securities	(63)	(154)		(127)	(305)
Net Loss Available to Common Shareholders	$ (15,407)	$ (2,758)		$ (49,108)	$ (43,896)
Average Shares of Common Stock Outstanding	41,725	41,689		41,664	41,773
Shares Used in Calculating Diluted Earnings (Loss) Per Share	41,725	41,689		41,664	41,773
Basic Earnings (Loss) Per Share	$ (0.37)	$ (0.07)		$ (1.18)	$ (1.05)
Diluted Earnings (Loss) Per Share	$ (0.37)	$ (0.07)		$ (1.18)	$ (1.05)