Condensed Consolidating Schedules - Cash Flow (Details) - USD ($) $ in Thousands	2 Months Ended	3 Months Ended		7 Months Ended	9 Months Ended
	Feb. 14, 2014	Sep. 27, 2015	Sep. 28, 2014	Sep. 28, 2014	Sep. 27, 2015	Dec. 28, 2014
Successor [Member]
Condensed Financial Statements, Captions [Line Items]
Capital lease obligations, less current portion		$ 15,157			$ 15,157	$ 15,476
Capital lease obligations, current portion		408			408	408
Transaction and severance costs		278	$ 5,742	$ 43,263	360
Cash flows provided by (used in) operating activities:
Net Cash Provided by (Used in) Operating Activities				37,462	88,298
Cash flows provided by (used in) investing activities:
Acquisition of Predecessor				0	(663)
Other Payments to Acquire Businesses				(946,898)	(663)
Payments to acquire franchisee				(1,529)	0
Intercompany Note, Investing				0	0
Proceeds from sale of property and equipment				(38,866)	(56,994)
Proceeds from sale of property and equipment				350	261
Payments to Develop Software				0	(2,784)
Payments for (Proceeds from) Other Investing Activities				0	0
Net cash used in investing activities				(986,943)	(60,180)
Proceeds from secured credit facilities, net of original issue discount				756,200	0
Proceeds from senior notes				255,000	0
Repayment of Predecessor Facility				(348,000)	0
Repayments on senior term loan				(1,900)	(5,700)
Repayments of Notes Payable				0	(34)
Cash flows from financing activities:
Intercompany Note, Financing				0	0
Net repayments on revolving credit facility				0	0
Proceeds from sale leaseback transaction				183,685	0
Payment of debt financing costs				(27,575)	0
Repayments of Long-term Capital Lease Obligations				(204)	(308)
Sale Leaseback Transaction, Payments, Financing Activities				0	(1,196)
Payments of Dividends				(890)	(70,000)
Excess tax benefit realized from stock-based compensation				5,043	0
Payments for Repurchase of Other Equity				0	0
Equity contribution				350,000	0
Net cash provided by (used in) financing activities				1,171,359	(77,238)
Effect of foreign exchange rate changes on cash				(77)	(977)
Change in cash and cash equivalents				221,801	(50,097)
Cash and cash equivalents at beginning of period					110,994
Cash and cash equivalents at end of period		60,897	240,985	240,985	60,897
Cash Equivalents, at Carrying Value			240,985	240,985
Successor [Member] | Guarantors
Condensed Financial Statements, Captions [Line Items]
Capital lease obligations, less current portion		0			0	0
Capital lease obligations, current portion		0			0	0
Transaction and severance costs		78	(15)	5,992	345
Cash flows provided by (used in) operating activities:
Net Cash Provided by (Used in) Operating Activities				(68,202)	(1,253)
Cash flows provided by (used in) investing activities:
Other Payments to Acquire Businesses				0	0
Payments to acquire franchisee				0
Intercompany Note, Investing				375,358	6,483
Proceeds from sale of property and equipment				(3,667)	(6,464)
Proceeds from sale of property and equipment				350
Payments to Develop Software					(2,784)
Payments for (Proceeds from) Other Investing Activities					0
Net cash used in investing activities				372,041	(2,765)
Proceeds from secured credit facilities, net of original issue discount				0
Proceeds from senior notes				0
Repayment of Predecessor Facility				(348,000)
Repayments on senior term loan				0	0
Repayments of Notes Payable					(34)
Cash flows from financing activities:
Intercompany Note, Financing				44,055	(2,048)
Proceeds from sale leaseback transaction				0
Payment of debt financing costs				0
Repayments of Long-term Capital Lease Obligations				0	0
Sale Leaseback Transaction, Payments, Financing Activities					0
Payments of Dividends				0	0
Excess tax benefit realized from stock-based compensation				0
Equity contribution				0
Net cash provided by (used in) financing activities				(303,945)	(2,082)
Effect of foreign exchange rate changes on cash				0	0
Change in cash and cash equivalents				(106)	(6,100)
Cash and cash equivalents at beginning of period					6,427
Cash and cash equivalents at end of period		327	14	14	327
Successor [Member] | Non-Guarantors
Condensed Financial Statements, Captions [Line Items]
Capital lease obligations, less current portion		68			68	81
Capital lease obligations, current portion		3			3	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				12,402	4,040
Cash flows provided by (used in) investing activities:
Other Payments to Acquire Businesses				0	0
Payments to acquire franchisee				0
Intercompany Note, Investing				0	0
Proceeds from sale of property and equipment				(3,354)	(1,598)
Proceeds from sale of property and equipment				0
Payments to Develop Software					0
Payments for (Proceeds from) Other Investing Activities					0
Net cash used in investing activities				(3,354)	(1,598)
Proceeds from secured credit facilities, net of original issue discount				0
Proceeds from senior notes				0
Repayment of Predecessor Facility				0
Repayments on senior term loan				0	0
Repayments of Notes Payable					0
Cash flows from financing activities:
Intercompany Note, Financing				(2,725)	(1,922)
Proceeds from sale leaseback transaction				0
Payment of debt financing costs				0
Repayments of Long-term Capital Lease Obligations				0	(2)
Sale Leaseback Transaction, Payments, Financing Activities					0
Payments of Dividends				0	0
Excess tax benefit realized from stock-based compensation				0
Equity contribution				0
Net cash provided by (used in) financing activities				(2,725)	(1,924)
Effect of foreign exchange rate changes on cash				(77)	(977)
Change in cash and cash equivalents				6,246	(459)
Cash and cash equivalents at beginning of period					7,547
Cash and cash equivalents at end of period		7,088	18,657	18,657	7,088
Successor [Member] | Issuer
Condensed Financial Statements, Captions [Line Items]
Capital lease obligations, less current portion		15,089			15,089	15,395
Capital lease obligations, current portion		405			405	405
Transaction and severance costs		200	5,757	37,271	15
Cash flows provided by (used in) operating activities:
Net Cash Provided by (Used in) Operating Activities				93,262	85,511
Cash flows provided by (used in) investing activities:
Other Payments to Acquire Businesses				(946,898)	(663)
Payments to acquire franchisee				(1,529)
Intercompany Note, Investing				(41,149)	(2,513)
Proceeds from sale of property and equipment				(31,845)	(48,932)
Proceeds from sale of property and equipment				0
Payments to Develop Software					0
Payments for (Proceeds from) Other Investing Activities					261
Net cash used in investing activities				(1,021,421)	(51,847)
Proceeds from secured credit facilities, net of original issue discount				756,200
Proceeds from senior notes				255,000
Repayment of Predecessor Facility				0
Repayments on senior term loan				(1,900)	(5,700)
Repayments of Notes Payable					0
Cash flows from financing activities:
Intercompany Note, Financing				(375,539)	0
Proceeds from sale leaseback transaction				183,685
Payment of debt financing costs				(27,575)
Repayments of Long-term Capital Lease Obligations				(204)	(306)
Sale Leaseback Transaction, Payments, Financing Activities					(1,196)
Payments of Dividends				(890)	(70,000)
Excess tax benefit realized from stock-based compensation				5,043
Equity contribution				350,000
Net cash provided by (used in) financing activities				1,143,820	(77,202)
Effect of foreign exchange rate changes on cash				0	0
Change in cash and cash equivalents				215,661	(43,538)
Cash and cash equivalents at beginning of period					97,020
Cash and cash equivalents at end of period		53,482	222,314	222,314	53,482
Successor [Member] | Eliminations
Condensed Financial Statements, Captions [Line Items]
Transaction and severance costs			0
Cash flows from financing activities:
Payment of debt financing costs				0
Cash Equivalents, at Carrying Value			$ 0	0
Predecessor [Member]
Condensed Financial Statements, Captions [Line Items]
Transaction and severance costs	$ 11,634
Cash flows provided by (used in) operating activities:
Net Cash Provided by (Used in) Operating Activities	22,314
Cash flows provided by (used in) investing activities:
Acquisition of Predecessor	0
Payments to acquire franchisee	0
Intercompany Note, Investing	0
Proceeds from sale of property and equipment	(9,710)
Proceeds from sale of property and equipment	51
Payments to Develop Software	0
Payments for (Proceeds from) Other Investing Activities	0
Net cash used in investing activities	(9,659)
Proceeds from secured credit facilities, net of original issue discount	0
Proceeds from senior notes	0
Repayment of Predecessor Facility	0
Repayments of Notes Payable	0
Cash flows from financing activities:
Intercompany Note, Financing	0
Net repayments on revolving credit facility	(13,500)
Proceeds from sale leaseback transaction	0
Payment of debt financing costs	0
Repayments of Long-term Capital Lease Obligations	(164)
Sale Leaseback Transaction, Payments, Financing Activities	0
Payments of Dividends	(38)
Excess tax benefit realized from stock-based compensation	0
Payments for Repurchase of Other Equity	(142)
Equity contribution	0
Net cash provided by (used in) financing activities	(13,844)
Effect of foreign exchange rate changes on cash	(313)
Change in cash and cash equivalents	(1,502)
Cash and cash equivalents at beginning of period	20,686			19,184
Cash and cash equivalents at end of period	19,184
Cash Equivalents, at Carrying Value	19,184
Predecessor [Member] | Guarantors
Condensed Financial Statements, Captions [Line Items]
Transaction and severance costs	9,834
Cash flows provided by (used in) operating activities:
Net Cash Provided by (Used in) Operating Activities	29,906
Cash flows provided by (used in) investing activities:
Intercompany Note, Investing	(17,601)
Proceeds from sale of property and equipment	(1,082)
Proceeds from sale of property and equipment	53
Net cash used in investing activities	(18,630)
Cash flows from financing activities:
Intercompany Note, Financing	430
Net repayments on revolving credit facility	(13,500)
Repayments of Long-term Capital Lease Obligations	0
Payments of Dividends	0
Payments for Repurchase of Other Equity	0
Net cash provided by (used in) financing activities	(13,070)
Effect of foreign exchange rate changes on cash	0
Change in cash and cash equivalents	(1,794)
Cash and cash equivalents at beginning of period	1,914			120
Cash and cash equivalents at end of period	120
Cash Equivalents, at Carrying Value	120
Predecessor [Member] | Non-Guarantors
Condensed Financial Statements, Captions [Line Items]
Transaction and severance costs	0
Cash flows provided by (used in) operating activities:
Net Cash Provided by (Used in) Operating Activities	4,632
Cash flows provided by (used in) investing activities:
Intercompany Note, Investing	0
Proceeds from sale of property and equipment	(90)
Proceeds from sale of property and equipment	0
Net cash used in investing activities	(90)
Cash flows from financing activities:
Intercompany Note, Financing	(400)
Net repayments on revolving credit facility	0
Repayments of Long-term Capital Lease Obligations	(11)
Payments of Dividends	0
Payments for Repurchase of Other Equity	0
Net cash provided by (used in) financing activities	(411)
Effect of foreign exchange rate changes on cash	(313)
Change in cash and cash equivalents	3,818
Cash and cash equivalents at beginning of period	8,595			12,413
Cash and cash equivalents at end of period	12,413
Cash Equivalents, at Carrying Value	12,411
Predecessor [Member] | Issuer
Condensed Financial Statements, Captions [Line Items]
Transaction and severance costs	1,800
Cash flows provided by (used in) operating activities:
Net Cash Provided by (Used in) Operating Activities	(12,224)
Cash flows provided by (used in) investing activities:
Intercompany Note, Investing	0
Proceeds from sale of property and equipment	(8,538)
Proceeds from sale of property and equipment	(2)
Net cash used in investing activities	(8,540)
Cash flows from financing activities:
Intercompany Note, Financing	17,571
Net repayments on revolving credit facility	0
Repayments of Long-term Capital Lease Obligations	(153)
Payments of Dividends	(38)
Payments for Repurchase of Other Equity	(142)
Net cash provided by (used in) financing activities	17,238
Effect of foreign exchange rate changes on cash	0
Change in cash and cash equivalents	(3,526)
Cash and cash equivalents at beginning of period	10,177			6,651
Cash and cash equivalents at end of period	6,651
Cash Equivalents, at Carrying Value	6,653
Predecessor [Member] | Eliminations
Cash flows from financing activities:
Cash Equivalents, at Carrying Value	0
Eliminations | Successor [Member]
Condensed Financial Statements, Captions [Line Items]
Capital lease obligations, less current portion		0			0	0
Capital lease obligations, current portion		0			0	$ 0
Transaction and severance costs		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	0
Payments to acquire franchisee				0
Intercompany Note, Investing				(334,209)	(3,970)
Proceeds from sale of property and equipment				0	0
Proceeds from sale of property and equipment				0
Payments to Develop Software					0
Payments for (Proceeds from) Other Investing Activities					0
Net cash used in investing activities				(334,209)	(3,970)
Proceeds from secured credit facilities, net of original issue discount				0
Proceeds from senior notes				0
Repayment of Predecessor Facility				0
Repayments on senior term loan				0	0
Repayments of Notes Payable					0
Cash flows from financing activities:
Intercompany Note, Financing				334,209	3,970
Proceeds from sale leaseback transaction				0
Repayments of Long-term Capital Lease Obligations				0	0
Sale Leaseback Transaction, Payments, Financing Activities					0
Payments of Dividends				0	0
Excess tax benefit realized from stock-based compensation				0
Equity contribution				0
Net cash provided by (used in) financing activities				334,209	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
Cash and cash equivalents at end of period		$ 0			$ 0
Eliminations | Predecessor [Member]
Condensed Financial Statements, Captions [Line Items]
Transaction and severance costs	0
Cash flows provided by (used in) operating activities:
Net Cash Provided by (Used in) Operating Activities	0
Cash flows provided by (used in) investing activities:
Intercompany Note, Investing	17,601
Proceeds from sale of property and equipment	0
Proceeds from sale of property and equipment	0
Net cash used in investing activities	17,601
Cash flows from financing activities:
Intercompany Note, Financing	(17,601)
Net repayments on revolving credit facility	0
Repayments of Long-term Capital Lease Obligations	0
Payments of Dividends	0
Payments for Repurchase of Other Equity	0
Net cash provided by (used in) financing activities	(17,601)
Effect of foreign exchange rate changes on cash	0
Change in cash and cash equivalents	0
Cash and cash equivalents at beginning of period	0			$ 0
Cash and cash equivalents at end of period	$ 0