Income Taxes (Provision For) Benefit from Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017
Current:
U.S. federal	$ (18,421)	$ (109,078)	$ (13,092)
State	(6,093)	(2,661)	(4,055)
Foreign	(9,190)	(9,630)	(9,173)
Current tax provision	(33,704)	(121,369)	(26,320)
Deferred:
U.S. federal	1,585	5,071	127,592
State	(2,449)	441	(7,729)
Foreign	27	1,056	(533)
Deferred tax (provision) benefit	(837)	6,568	119,330
Income tax (provision) benefit	$ (34,541)	$ (114,801)	$ 93,010