Condensed Consolidating Schedules - Cash Flow (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended		9 Months Ended
	Oct. 02, 2016	Jul. 03, 2016	Sep. 27, 2015	Jun. 28, 2015	Jul. 03, 2016	Jun. 28, 2015	Oct. 02, 2016	Sep. 27, 2015	Jan. 03, 2016
Condensed Financial Statements, Captions [Line Items]
Capital lease obligations, less current portion	$ 14,681	$ 14,681			$ 14,681		$ 14,681		$ 15,044
Capital lease obligations	477	477			477		477		421
Transaction and severance costs	166	166	$ 1,826	$ 1,826	1,349	$ 3,939	1,349	$ 3,939
Cash flows provided by (used in) operating activities:
Net Cash Provided by (Used in) Operating Activities					111,254	88,298	111,254	88,298
Cash flows provided by (used in) investing activities:
Acquisition of Predecessor							0	(663)
Other Payments to Acquire Businesses						(663)
Intercompany Note, Investing						0
Proceeds from sale of property and equipment					(66,535)	(56,994)	(66,535)	(56,994)
Proceeds from Sale of Property, Plant, and Equipment					426	261	426	261
Payments to Develop Software					(8,788)	(2,784)	(8,788)	(2,784)
Net cash used in investing activities					(74,897)	(60,180)	(74,897)	(60,180)
Repayments on senior term loan					(5,700)	(5,700)	(5,700)	(5,700)
Repayments of Notes Payable					(37)		(37)
Cash flows from financing activities:
Intercompany Note, Financing						0
Repayments on note payable						(34)		(34)
Repayments of Long-term Capital Lease Obligations					(311)	(308)	(311)	(308)
Sale Leaseback Transaction, Payments, Financing Activities					(1,466)		(1,466)	(1,196)
Payments of Dividends						(1,196)
Dividends						(70,000)		(70,000)
Excess tax benefit realized from stock-based compensation					4		4	0
Net cash used in financing activities					(7,510)	(77,238)	(7,510)	(77,238)
Effect of foreign exchange rate changes on cash					356	(977)	356	(977)
Change in cash and cash equivalents					29,203	(50,097)	29,203	(50,097)
Cash and cash equivalents at beginning of period	79,857		60,897		50,654	110,994	50,654	110,994
Cash and cash equivalents at end of period	79,857	79,857	60,897	60,897	79,857	60,897	79,857	60,897
Guarantors
Condensed Financial Statements, Captions [Line Items]
Capital lease obligations, less current portion		0			0				0
Capital lease obligations		0			0				0
Transaction and severance costs		0		1,626	55	3,924
Cash flows provided by (used in) operating activities:
Net Cash Provided by (Used in) Operating Activities					17,674	(1,253)
Cash flows provided by (used in) investing activities:
Other Payments to Acquire Businesses						0
Intercompany Note, Investing						6,483
Proceeds from sale of property and equipment					(15,506)	(6,464)
Proceeds from Sale of Property, Plant, and Equipment					0	0
Payments to Develop Software					(2,784)	(2,784)
Net cash used in investing activities					(18,290)	(2,765)
Repayments on senior term loan					0	0
Repayments of Notes Payable					(37)
Cash flows from financing activities:
Intercompany Note, Financing						(2,048)
Repayments on note payable						(34)
Repayments of Long-term Capital Lease Obligations					0	0
Sale Leaseback Transaction, Payments, Financing Activities					0
Payments of Dividends						0
Dividends						0
Excess tax benefit realized from stock-based compensation					0
Net cash used in financing activities					(37)	(2,082)
Effect of foreign exchange rate changes on cash					0	0
Change in cash and cash equivalents					(653)	(6,100)
Cash and cash equivalents at beginning of period	1,144		327		1,797	6,427	1,797	6,427
Cash and cash equivalents at end of period		1,144		327	1,144	327
Non-Guarantors
Condensed Financial Statements, Captions [Line Items]
Capital lease obligations, less current portion		63			63				64
Capital lease obligations		6			6				3
Transaction and severance costs		0		0	0	0
Cash flows provided by (used in) operating activities:
Net Cash Provided by (Used in) Operating Activities					240	4,040
Cash flows provided by (used in) investing activities:
Other Payments to Acquire Businesses						0
Intercompany Note, Investing						0
Proceeds from sale of property and equipment					(206)	(1,598)
Proceeds from Sale of Property, Plant, and Equipment					0	0
Payments to Develop Software					0	0
Net cash used in investing activities					(206)	(1,598)
Repayments on senior term loan					0	0
Repayments of Notes Payable					0
Cash flows from financing activities:
Intercompany Note, Financing						(1,922)
Repayments on note payable						0
Repayments of Long-term Capital Lease Obligations					(3)	(2)
Sale Leaseback Transaction, Payments, Financing Activities					0
Payments of Dividends						0
Dividends						0
Excess tax benefit realized from stock-based compensation					0
Net cash used in financing activities					(3)	(1,924)
Effect of foreign exchange rate changes on cash					356	(977)
Change in cash and cash equivalents					387	(459)
Cash and cash equivalents at beginning of period	7,009		7,088		6,622	7,547	6,622	7,547
Cash and cash equivalents at end of period		7,009		7,088	7,009	7,088
Issuer
Condensed Financial Statements, Captions [Line Items]
Capital lease obligations, less current portion		14,618			14,618
Capital lease obligations		471			471
Transaction and severance costs					1,294	15
Cash flows provided by (used in) operating activities:
Net Cash Provided by (Used in) Operating Activities					93,340	85,511
Cash flows provided by (used in) investing activities:
Other Payments to Acquire Businesses						(663)
Intercompany Note, Investing						(2,513)
Proceeds from sale of property and equipment					(50,823)	(48,932)
Proceeds from Sale of Property, Plant, and Equipment					426	261
Payments to Develop Software					(6,004)	0
Net cash used in investing activities					(56,401)	(51,847)
Repayments on senior term loan					(5,700)	(5,700)
Repayments of Notes Payable					0
Cash flows from financing activities:
Intercompany Note, Financing						0
Repayments on note payable						0
Repayments of Long-term Capital Lease Obligations					(308)	(306)
Sale Leaseback Transaction, Payments, Financing Activities					(1,466)
Payments of Dividends						(1,196)
Dividends						(70,000)
Excess tax benefit realized from stock-based compensation					4
Net cash used in financing activities					(7,470)	(77,202)
Effect of foreign exchange rate changes on cash					0	0
Change in cash and cash equivalents					29,469	(43,538)
Cash and cash equivalents at beginning of period	71,704		53,482		42,235	97,020	42,235	97,020
Cash and cash equivalents at end of period		71,704		53,482	71,704	53,482
Eliminations
Condensed Financial Statements, Captions [Line Items]
Capital lease obligations, less current portion		0			0				0
Capital lease obligations		0			0				$ 0
Transaction and severance costs		0		0	0	0
Cash flows provided by (used in) operating activities:
Net Cash Provided by (Used in) Operating Activities					0	0
Cash flows provided by (used in) investing activities:
Other Payments to Acquire Businesses						0
Intercompany Note, Investing						(3,970)
Proceeds from sale of property and equipment					0	0
Proceeds from Sale of Property, Plant, and Equipment					0	0
Payments to Develop Software					0	0
Net cash used in investing activities					0	(3,970)
Repayments on senior term loan					0	0
Repayments of Notes Payable					0
Cash flows from financing activities:
Intercompany Note, Financing						3,970
Repayments on note payable						0
Repayments of Long-term Capital Lease Obligations					0	0
Sale Leaseback Transaction, Payments, Financing Activities					0
Payments of Dividends						0
Dividends						0
Excess tax benefit realized from stock-based compensation					0
Net cash used in financing activities					0	3,970
Effect of foreign exchange rate changes on cash					0	0
Change in cash and cash equivalents					0	0
Cash and cash equivalents at beginning of period	$ 0		$ 0		0	0	$ 0	$ 0
Cash and cash equivalents at end of period		$ 0		$ 0	$ 0	$ 0