Segment Information - Operating Segments (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 29, 2019	Sep. 29, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 30, 2018	Sep. 30, 2018	Jul. 01, 2018	Apr. 01, 2018	Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Net Sales	$ 339,482	$ 348,352	$ 357,507	$ 297,688	$ 337,059	$ 318,325	$ 283,626	$ 240,563	$ 1,343,029	$ 1,179,573	$ 996,443
Depreciation and amortization									44,932	39,084	30,261
Total assets	1,423,049				1,284,644				1,423,049	1,284,644
Operating Segments
Segment Reporting Information [Line Items]
Net Sales									1,343,029	1,179,573	996,443
Depreciation and amortization									39,671	35,161	28,259
Total assets	1,547,309				1,229,952				1,547,309	1,229,952
AMERICAS | Operating Segments
Segment Reporting Information [Line Items]
Net Sales									757,112	682,261	588,052
Depreciation and amortization									12,917	13,732	13,548
Total assets	728,683				482,510				728,683	482,510
EUROPE | Operating Segments
Segment Reporting Information [Line Items]
Net Sales									393,194	319,677	246,399
Depreciation and amortization									18,452	12,862	6,049
Total assets	618,375				546,758				618,375	546,758
ASIA- PACIFIC | Operating Segments
Segment Reporting Information [Line Items]
Net Sales									192,723	177,635	161,992
Depreciation and amortization									8,302	8,567	$ 8,662
Total assets	$ 200,251				$ 200,684				$ 200,251	$ 200,684