Segment Information - Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 29, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 30, 2017	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Net sales	$ 402,281	$ 439,191	$ 459,183	$ 417,813	$ 304,849	$ 317,889	$ 313,355	$ 285,441	$ 1,718,468	$ 1,221,534	$ 1,056,159
Depreciation and amortization									103,193	63,011	53,137
Operating income (loss)	$ 51,628	$ 76,228	$ 59,622	$ 37,571	$ 50,780	$ 58,609	$ 60,270	$ 48,852	225,049	218,511	130,644
Interest expense									22,569	13,380	8,628
Foreign exchange loss (gain)									(863)	2,376	472
Other expense (income), net									(1,599)	(1,282)	(1,730)
Income before income taxes									204,942	204,037	123,274
Electronics
Segment Reporting Information [Line Items]
Net sales									1,124,296	661,928	535,191
Depreciation and amortization									61,779	35,215	29,141
Operating income (loss)									241,426	155,880	117,088
Automotive
Segment Reporting Information [Line Items]
Net sales									479,791	453,227	415,200
Depreciation and amortization									23,333	22,459	18,107
Operating income (loss)									54,982	62,571	59,905
Industrial
Segment Reporting Information [Line Items]
Net sales									114,381	106,379	105,768
Depreciation and amortization									5,661	5,337	5,889
Operating income (loss)									17,335	10,334	3,615
Other
Segment Reporting Information [Line Items]
Depreciation and amortization									12,420	0	0
Operating income (loss)									$ (88,694)	$ (10,274)	$ (49,964)