Segment Information - Summary of Total Net Sales to External Customers (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 26, 2020	Jun. 27, 2020	Mar. 28, 2020	Dec. 31, 2019	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information
Net sales	$ 517,594	$ 480,987	$ 448,405	$ 412,327	$ 426,998	$ 394,147	$ 378,874	$ 391,047	$ 1,859,313	$ 1,591,066	$ 1,550,497
NORTH AMERICA
Segment Reporting Information
Net sales									466,513	380,864	347,032
TAIWAN
Segment Reporting Information
Net sales									372,205	309,829	289,863
SOUTH KOREA
Segment Reporting Information
Net sales									273,200	244,367	242,396
JAPAN
Segment Reporting Information
Net sales									242,896	205,490	210,755
CHINA
Segment Reporting Information
Net sales									247,863	214,740	204,385
EUROPE
Segment Reporting Information
Net sales									154,438	132,223	138,075
SOUTHEAST ASIA
Segment Reporting Information
Net sales									102,198	103,553	117,991
SCEM
Segment Reporting Information
Net sales									609,532	526,519	530,241
SCEM | NORTH AMERICA
Segment Reporting Information
Net sales									189,009	149,570	133,834
SCEM | TAIWAN
Segment Reporting Information
Net sales									106,665	94,561	104,707
SCEM | SOUTH KOREA
Segment Reporting Information
Net sales									88,580	76,447	82,890
SCEM | JAPAN
Segment Reporting Information
Net sales									73,366	57,456	52,731
SCEM | CHINA
Segment Reporting Information
Net sales									77,817	67,877	68,365
SCEM | EUROPE
Segment Reporting Information
Net sales									35,027	33,147	32,088
SCEM | SOUTHEAST ASIA
Segment Reporting Information
Net sales									39,068	47,461	55,626
MC
Segment Reporting Information
Net sales									742,186	633,664	553,838
MC | NORTH AMERICA
Segment Reporting Information
Net sales									144,015	113,551	95,421
MC | TAIWAN
Segment Reporting Information
Net sales									171,201	144,404	118,208
MC | SOUTH KOREA
Segment Reporting Information
Net sales									91,997	98,568	74,623
MC | JAPAN
Segment Reporting Information
Net sales									124,321	104,202	110,997
MC | CHINA
Segment Reporting Information
Net sales									108,588	98,693	84,652
MC | EUROPE
Segment Reporting Information
Net sales									67,090	45,454	40,635
MC | SOUTHEAST ASIA
Segment Reporting Information
Net sales									34,974	28,792	29,302
AMH
Segment Reporting Information
Net sales									538,682	458,290	493,404
AMH | NORTH AMERICA
Segment Reporting Information
Net sales									164,576	145,150	144,763
AMH | TAIWAN
Segment Reporting Information
Net sales									94,339	70,864	66,948
AMH | SOUTH KOREA
Segment Reporting Information
Net sales									92,623	69,352	84,883
AMH | JAPAN
Segment Reporting Information
Net sales									45,209	43,832	47,027
AMH | CHINA
Segment Reporting Information
Net sales									61,458	48,170	51,368
AMH | EUROPE
Segment Reporting Information
Net sales									52,321	53,622	65,352
AMH | SOUTHEAST ASIA
Segment Reporting Information
Net sales									28,156	27,300	33,063
Inter-segment elimination
Segment Reporting Information
Net sales									(31,087)	(27,407)	(26,986)
Inter-segment elimination | NORTH AMERICA
Segment Reporting Information
Net sales									(31,087)	(27,407)	(26,986)
Inter-segment elimination | TAIWAN
Segment Reporting Information
Net sales									0	0	0
Inter-segment elimination | SOUTH KOREA
Segment Reporting Information
Net sales									0	0	0
Inter-segment elimination | JAPAN
Segment Reporting Information
Net sales									0	0	0
Inter-segment elimination | CHINA
Segment Reporting Information
Net sales									0	0	0
Inter-segment elimination | EUROPE
Segment Reporting Information
Net sales									0	0	0
Inter-segment elimination | SOUTHEAST ASIA
Segment Reporting Information
Net sales									$ 0	$ 0	$ 0