Condensed Consolidating Schedules - Cash Flow (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 02, 2017	Apr. 03, 2016	Jul. 03, 2016	Jun. 28, 2015	Jan. 01, 2017
Condensed Financial Statements, Captions [Line Items]
Capital lease obligations, less current portion	$ 13,457				$ 13,602
Capital lease obligations, current portion	507				467
Transaction and severance costs	80	$ 749	$ 0	$ 0
Cash flows provided by (used in) operating activities:
Net Cash Provided by (Used in) Operating Activities	58,795	43,772
Cash flows provided by (used in) investing activities:
Proceeds from sale of property and equipment	(22,793)	(18,823)
Proceeds from Sale of Property, Plant, and Equipment	105	79
Payments to Develop Software	(1,129)	(3,625)
Net cash used in investing activities	(23,817)	(22,369)
Repayments on senior term loan	(1,900)	(1,900)
Repayments of Notes Payable	(13)	(7)
Cash flows from financing activities:
Repayments on note payable		(7)
Proceeds from sale leaseback transaction	4,100
Repayments of Long-term Capital Lease Obligations	(106)	(101)
Sale Leaseback Transaction, Payments, Financing Activities	(570)	(474)
Excess tax benefit realized from stock-based compensation	0	4
Adjustments to Additional Paid in Capital, Other	(1,447)	0
Net cash used in financing activities	(1,142)	(2,478)
Effect of foreign exchange rate changes on cash	67	419
Change in cash and cash equivalents	33,903	19,344
Cash and cash equivalents at beginning of period	61,023	50,654	50,654
Cash and cash equivalents at end of period	94,926	69,998
Guarantors
Condensed Financial Statements, Captions [Line Items]
Capital lease obligations, less current portion	0				0
Capital lease obligations, current portion	0				0
Transaction and severance costs	0	48
Cash flows provided by (used in) operating activities:
Net Cash Provided by (Used in) Operating Activities	10,342	3,662
Cash flows provided by (used in) investing activities:
Proceeds from sale of property and equipment	(7,639)	(451)
Proceeds from Sale of Property, Plant, and Equipment	0	0
Payments to Develop Software	(1,129)	(2,784)
Net cash used in investing activities	(8,768)	(3,235)
Repayments on senior term loan	0	0
Repayments of Notes Payable	(13)
Cash flows from financing activities:
Repayments on note payable		(7)
Repayments of Long-term Capital Lease Obligations	0	0
Sale Leaseback Transaction, Payments, Financing Activities	0	0
Excess tax benefit realized from stock-based compensation		0
Adjustments to Additional Paid in Capital, Other	0
Net cash used in financing activities	(13)	(7)
Effect of foreign exchange rate changes on cash	0	0
Change in cash and cash equivalents	1,561	420
Cash and cash equivalents at beginning of period	1,158	1,797	1,797
Cash and cash equivalents at end of period	2,719	2,217
Non-Guarantors
Condensed Financial Statements, Captions [Line Items]
Capital lease obligations, less current portion	58				60
Capital lease obligations, current portion	7				7
Transaction and severance costs	0	0	0	0
Cash flows provided by (used in) operating activities:
Net Cash Provided by (Used in) Operating Activities	691	(335)
Cash flows provided by (used in) investing activities:
Proceeds from sale of property and equipment	(530)	(30)
Proceeds from Sale of Property, Plant, and Equipment	0	0
Payments to Develop Software	0	0
Net cash used in investing activities	(530)	(30)
Repayments on senior term loan	0	0
Repayments of Notes Payable	0
Cash flows from financing activities:
Repayments on note payable		0
Repayments of Long-term Capital Lease Obligations	(2)	(1)
Sale Leaseback Transaction, Payments, Financing Activities	0	0
Excess tax benefit realized from stock-based compensation		0
Adjustments to Additional Paid in Capital, Other	0
Net cash used in financing activities	(2)	(1)
Effect of foreign exchange rate changes on cash	67	419
Change in cash and cash equivalents	226	53
Cash and cash equivalents at beginning of period	6,777	6,622	6,622
Cash and cash equivalents at end of period	7,003	6,675
Issuer
Condensed Financial Statements, Captions [Line Items]
Capital lease obligations, less current portion	13,399
Capital lease obligations, current portion	500
Transaction and severance costs
Cash flows provided by (used in) operating activities:
Net Cash Provided by (Used in) Operating Activities	47,762	40,445
Cash flows provided by (used in) investing activities:
Proceeds from sale of property and equipment	(14,624)	(18,342)
Proceeds from Sale of Property, Plant, and Equipment	105	79
Payments to Develop Software	0	(841)
Net cash used in investing activities	(14,519)	(19,104)
Repayments on senior term loan	(1,900)	(1,900)
Repayments of Notes Payable	0
Cash flows from financing activities:
Repayments on note payable		0
Repayments of Long-term Capital Lease Obligations	(104)	(100)
Sale Leaseback Transaction, Payments, Financing Activities	(570)	(474)
Excess tax benefit realized from stock-based compensation		4
Adjustments to Additional Paid in Capital, Other	(1,447)
Net cash used in financing activities	(1,127)	(2,470)
Effect of foreign exchange rate changes on cash	0	0
Change in cash and cash equivalents	32,116	18,871
Cash and cash equivalents at beginning of period	53,088	42,235	42,235
Cash and cash equivalents at end of period	85,204	61,106
Eliminations
Condensed Financial Statements, Captions [Line Items]
Capital lease obligations, less current portion	0				0
Capital lease obligations, current portion	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:
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	0
Repayments on senior term loan	0	0
Repayments of Notes Payable	0
Cash flows from financing activities:
Repayments on note payable		0
Repayments of Long-term Capital Lease Obligations	0	0
Sale Leaseback Transaction, Payments, Financing Activities	0	0
Excess tax benefit realized from stock-based compensation		0
Adjustments to Additional Paid in Capital, Other	0
Net cash used in financing activities	0	0
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
Cash and cash equivalents at end of period	$ 0	$ 0