Summary of Total Net Sales to External Customers (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 26, 2015	Jun. 27, 2015	Mar. 28, 2015	Dec. 31, 2014	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Net sales	$ 266,786	$ 270,253	$ 280,709	$ 263,373	$ 271,633	$ 273,054	$ 251,578	$ 165,804	$ 1,081,121	$ 962,069	$ 693,459
UNITED STATES
Segment Reporting Information [Line Items]
Net sales									251,885	239,040	201,380
JAPAN
Segment Reporting Information [Line Items]
Net sales									131,332	121,452	101,529
GERMANY
Segment Reporting Information [Line Items]
Net sales									91,285	95,994	72,330
TAIWAN, PROVINCE OF CHINA
Segment Reporting Information [Line Items]
Net sales									249,913	230,824	128,194
SINGAPORE
Segment Reporting Information [Line Items]
Net sales									55,409	46,051	30,942
KOREA, REPUBLIC OF
Segment Reporting Information [Line Items]
Net sales									148,062	122,328	76,353
CHINA
Segment Reporting Information [Line Items]
Net sales									89,901	66,186	36,299
All Other Segments
Segment Reporting Information [Line Items]
Net sales									$ 63,334	$ 40,194	$ 46,432