Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015	Dec. 31, 2013	Dec. 31, 2012
Income Taxes [Line Items]
Income tax benefit from valuation allowance			$ 9,394,000
Undistributed earnings from non-U.S. operations	$ 14,300,000
Unrecognized tax benefits	7,544,000	$ 7,173,000	6,578,000	$ 6,482,000
Unrecognized tax benefits that would impact effective tax rate	73,000
Unrecognized net tax expense (benefit) for interest	(1,000)	2,000	(110,000)
Accrued interest related to unrealized tax benefits	9,000
Internal Revenue Service (IRS)
Income Taxes [Line Items]
Net operating loss carryforwards	$ 66,000,000
Net operating loss carryforwards, expiration year	2028
Tax credit carryforwards	$ 13,500,000
Tax credit carryforwards, expiration year	2019
Inland Revenue, Singapore (IRAS)
Income Taxes [Line Items]
Deposit for contested taxes and related interest	$ 871,000	1,400,000
Partial refund received for contested taxes	(517,000)
Derecognition of portion of tax accrual	(281,000)
Reduction in income tax provision	(281,000)
Inland Revenue, Singapore (IRAS) | Tax Year 2009
Income Taxes [Line Items]
Deposit for contested taxes and related interest			318,000
Inland Revenue, Singapore (IRAS) | Tax Year 2010
Income Taxes [Line Items]
Deposit for contested taxes and related interest		1,100,000
Singapore
Income Taxes [Line Items]
Income tax benefit from valuation allowance	(136,000)	631,000	9,400,000
United States
Income Taxes [Line Items]
Income tax benefit from valuation allowance	3,300,000	$ 1,600,000	$ 4,700,000	$ 7,200,000	$ 23,400,000
Foreign Tax Authority
Income Taxes [Line Items]
Net operating loss carryforwards	60,300,000
State and Local Jurisdiction
Income Taxes [Line Items]
Net operating loss carryforwards	$ 63,800,000
Net operating loss carryforwards, expiration year	2028
Tax credit carryforwards	$ 13,400,000