Segment Information - Revenues and Long-lived Assets by Geographical Area (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 28, 2019	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Dec. 29, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Segment Reporting Information [Line Items]
Net sales	$ 338,523	$ 361,971	$ 397,879	$ 405,500	$ 402,281	$ 439,191	$ 459,183	$ 417,813	$ 1,503,873	$ 1,718,468	$ 1,221,534
Long-lived assets	344,617				339,894				344,617	339,894	250,577
Additions to long-lived assets									66,366	74,753	65,925
United States
Segment Reporting Information [Line Items]
Net sales									440,461	511,544	383,025
Long-lived assets	58,081				58,691				58,081	58,691	23,490
Additions to long-lived assets									5,864	5,567	3,518
China
Segment Reporting Information [Line Items]
Net sales									416,385	468,174	321,111
Long-lived assets	88,306				95,806				88,306	95,806	86,866
Additions to long-lived assets									10,400	29,286	32,775
Mexico
Segment Reporting Information [Line Items]
Long-lived assets	73,096				70,495				73,096	70,495	62,510
Additions to long-lived assets									13,827	18,723	19,395
Germany
Segment Reporting Information [Line Items]
Long-lived assets	36,025				36,548				36,025	36,548	1,082
Additions to long-lived assets									4,017	5,208	93
Philippines
Segment Reporting Information [Line Items]
Long-lived assets	51,738				32,459				51,738	32,459	31,129
Additions to long-lived assets									22,944	7,605	2,979
Other countries
Segment Reporting Information [Line Items]
Net sales									647,027	738,750	517,398
Long-lived assets	$ 37,371				$ 45,895				37,371	45,895	45,500
Additions to long-lived assets									$ 9,314	$ 8,364	$ 7,165