Derivative Financial Instruments (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jul. 01, 2018	Jun. 30, 2019	Jul. 01, 2018	Dec. 30, 2018
Derivatives, Fair Value [Line Items]
Derivative financial instruments	$ 1,076,000		$ 1,076,000		$ 1,161,000
Derivative financial instruments	1,193,000		1,193,000		152,000
Derivative assets, gross amounts recognized	709,000		709,000		729,000
Derivative assets, gross amounts offset	0		0		0
Derivative assets, net amounts presented	709,000		709,000		729,000
Derivative assets, financial instruments	512,000		512,000		729,000
Derivative assets, cash collateral	0		0		0
Derivative assets, net amounts	197,000		197,000		0
Derivative liabilities, gross amounts recognized	1,403,000		1,403,000		1,313,000
Derivative liabilities, gross amounts offset	0		0		0
Derivative liabilities, net amounts presented	1,403,000		1,403,000		1,313,000
Derivative liabilities, financial instruments	512,000		512,000		729,000
Derivative liabilities, cash collateral	0		0		0
Derivative liabilities, net amounts	891,000		891,000		584,000
Accumulated Other Comprehensive Income [Roll Forward]
Gain (loss) in OCI at the beginning of the period	21,000	$ 1,045,000	(164,000)	$ (561,000)
Unrealized gain (loss) recognized in OCI (effective portion)	(466,000)	468,000	(278,000)	2,103,000
Gain recognized in other, net on derivatives (ineffective portion and amount excluded from effectiveness testing)	(444,000)	0	(444,000)	(35,000)
Less: (Gain) loss reclassified from OCI to interest expense (effective portion of interest rate swaps)	10,000	(32,000)	7,000	(26,000)
Net gain (loss) on derivatives	(900,000)	436,000	(715,000)	2,042,000
Gain (loss) in OCI at the end of the period	(879,000)	1,481,000	(879,000)	1,481,000
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net [Abstract]
Gain recognized in other, net on derivatives (ineffective portion and amount excluded from effectiveness testing)	(444,000)	0	(444,000)	(35,000)
Derivatives designated as hedging instruments
Derivatives, Fair Value [Line Items]
Derivative financial instruments (Note 12)	220,000		220,000		0
Derivative liability	1,106,000		1,106,000		152,000
Derivatives designated as hedging instruments | Interest rate swap
Notional Disclosures [Abstract]
Derivative asset, notional amount	6,500,000		6,500,000		6,700,000
Derivatives not designated as hedging instruments
Derivatives, Fair Value [Line Items]
Derivative financial instruments (Note 12)	489,000		489,000		729,000
Derivative liability	297,000		297,000		1,161,000
Derivatives not designated as hedging instruments | Foreign currency forward exchange contracts
Notional Disclosures [Abstract]
Derivative asset, notional amount	19,500,000		19,500,000		11,400,000
Prepaid expenses and other current assets
Derivatives, Fair Value [Line Items]
Derivative financial instruments (Note 12)	709,000		709,000		729,000
Prepaid expenses and other current assets | Derivatives designated as hedging instruments | Foreign currency option contracts
Derivatives, Fair Value [Line Items]
Current derivative assets	220,000		220,000		0
Prepaid expenses and other current assets | Derivatives not designated as hedging instruments | Foreign currency forward exchange contracts
Derivatives, Fair Value [Line Items]
Current derivative assets	489,000		489,000		729,000
Accrued liabilities | Derivatives not designated as hedging instruments | Foreign currency forward exchange contracts
Derivatives, Fair Value [Line Items]
Derivative financial instruments	297,000		297,000		1,161,000
Other long-term liabilities
Derivatives, Fair Value [Line Items]
Derivative financial instruments	376,000		376,000		152,000
Other long-term liabilities | Derivatives designated as hedging instruments | Interest rate contracts
Derivatives, Fair Value [Line Items]
Current derivative liabilities	376,000		376,000		152,000
Level 2 | Prepaid expenses and other current assets
Derivatives, Fair Value [Line Items]
Derivative financial instruments (Note 12)	709,000		709,000		729,000
Level 2 | Accrued liabilities | Derivatives designated as hedging instruments
Derivatives, Fair Value [Line Items]
Current derivative assets	730,000		730,000		0
Level 2 | Other long-term liabilities
Derivatives, Fair Value [Line Items]
Derivative financial instruments	376,000		376,000		152,000
Other, net
Accumulated Other Comprehensive Income [Roll Forward]
Gain recognized in other, net on derivatives (ineffective portion and amount excluded from effectiveness testing)	(107,000)	0	(107,000)	0
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net [Abstract]
Gain recognized in other, net on derivatives (ineffective portion and amount excluded from effectiveness testing)	(107,000)	0	(107,000)	0
Gain (loss) recognized in Other, net	(125,000)	$ (2,114,000)	(1,034,000)	$ (775,000)
Cash Flow Hedging | Derivatives designated as hedging instruments | Forward contracts
Notional Disclosures [Abstract]
Derivative asset, notional amount	47,900,000		47,900,000		0
Cash Flow Hedging | Derivatives designated as hedging instruments | Foreign currency option contracts
Notional Disclosures [Abstract]
Derivative asset, notional amount	$ 102,000,000.0		$ 102,000,000.0		$ 0