Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	$ 219,317	$ 270,338	$ 253,569
Charged (Credit) to costs and expenses	(2,002)	(50,857)	15,028
Charged (credit) to other accounts	73	2	2,943
Settlements & write-offs net of recoveries	(9,730)	(166)	(1,202)
Balance at end of period	207,658	219,317	270,338
Valuation allowance for deferred tax assets
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	209,691	260,687	252,578
Charged (Credit) to costs and expenses	(2,583)	(50,960)	7,450
Charged (credit) to other accounts	0	(36)	659
Settlements & write-offs net of recoveries	0	0	0
Balance at end of period	207,108	209,691	260,687
Allowance for doubtful accounts
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	9,371	9,299	621
Charged (Credit) to costs and expenses	1	3	7,362
Charged (credit) to other accounts	73	38	2,284
Settlements & write-offs net of recoveries	(9,248)	31	(968)
Balance at end of period	197	9,371	9,299
Allowance for warranty expense
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	255	352	370
Charged (Credit) to costs and expenses	580	100	216
Charged (credit) to other accounts	0	0	0
Settlements & write-offs net of recoveries	(482)	(197)	(234)
Balance at end of period	$ 353	$ 255	$ 352