Condensed Consolidating Financial Statements (Cash Flows) (Details) - USD ($) $ in Thousands		12 Months Ended
	Jun. 19, 2014	Dec. 27, 2016	Dec. 29, 2015	Dec. 30, 2014
Operating activities
Net cash flows provided by operating activities		$ 79,596	$ 79,904	$ 70,478
Investing activities
Capital expenditures		(62,656)	(56,210)	(66,067)
Acquisition of Wendy’s businesses, net of cash acquired		(44,188)	0	(56,841)
Investment in NPCQB		0		0
Return of investment in NPCQB		0	0	0
Proceeds from sale-leaseback transactions		10,360	1,408	24,182
Purchase of assets for sale-leaseback		0	0	(1,736)
Proceeds from disposition of assets		2,161	1,590	3,144
Net cash used in investing activities		(94,323)	(53,212)	(97,318)
Financing activities
Payments on term bank facilities		(4,326)	(4,158)	(2,704)
Borrowings under revolving credit facility		28,450	59,000	184,250
Investment from parent		0		0
Debt issue costs		0	(1,832)	(693)
Distribution to parent		0	0	0
Payment of accrued purchase price to sellers		0	0	(10,875)
Net payments on debt				(9,704)
Issuance of debt	$ 40,000	0	0	40,000
Other		(60)	(48)	(553)
Net cash (used in) provided by financing activities		(4,386)	(6,038)	18,868
Net change in cash and cash equivalents		(19,113)	20,654	(7,972)
Beginning cash and cash equivalents		32,717	12,063	20,035
Ending cash and cash equivalents		13,604	32,717	12,063
Eliminations
Operating activities
Net cash flows provided by operating activities		0	0	0
Investing activities
Capital expenditures		0	0	0
Acquisition of Wendy’s businesses, net of cash acquired		0		0
Investment in NPCQB		44,276		57,002
Return of investment in NPCQB		(20,490)	(4,096)	(33,718)
Proceeds from sale-leaseback transactions		0	0	0
Purchase of assets for sale-leaseback				0
Proceeds from disposition of assets		0	0	0
Net cash used in investing activities		23,786	(4,096)	23,284
Financing activities
Payments on term bank facilities		0	0
Investment from parent		(44,276)		(57,002)
Debt issue costs			0
Distribution to parent		20,490	4,096	33,718
Payment of accrued purchase price to sellers				0
Net payments on debt				0
Issuance of debt				0
Other		0	0	0
Net cash (used in) provided by financing activities		(23,786)	4,096	(23,284)
Net change in cash and cash equivalents		0	0	0
Beginning cash and cash equivalents		0	0	0
Ending cash and cash equivalents		0	0	0
Parent Guarantor: Holdings
Operating activities
Net cash flows provided by operating activities		0	0	0
Investing activities
Capital expenditures		0	0	0
Acquisition of Wendy’s businesses, net of cash acquired		0		0
Investment in NPCQB		0		0
Return of investment in NPCQB		0	0	0
Proceeds from sale-leaseback transactions		0	0	0
Purchase of assets for sale-leaseback				0
Proceeds from disposition of assets		0	0	0
Net cash used in investing activities		0	0	0
Financing activities
Payments on term bank facilities		0	0
Investment from parent		0		0
Debt issue costs			0
Distribution to parent		60	148	60
Payment of accrued purchase price to sellers				0
Net payments on debt				0
Issuance of debt				0
Other		(60)	(148)	(60)
Net cash (used in) provided by financing activities		0	0	0
Net change in cash and cash equivalents		0	0	0
Beginning cash and cash equivalents		0	0	0
Ending cash and cash equivalents		0	0	0
Subsidiary Issuer: NPC
Operating activities
Net cash flows provided by operating activities		48,939	58,703	48,402
Investing activities
Capital expenditures		(43,928)	(38,262)	(54,971)
Acquisition of Wendy’s businesses, net of cash acquired		0		0
Investment in NPCQB		(44,276)		(57,002)
Return of investment in NPCQB		20,490	4,096	33,718
Proceeds from sale-leaseback transactions		1,452	1,408	0
Purchase of assets for sale-leaseback				0
Proceeds from disposition of assets		1,755	733	3,093
Net cash used in investing activities		(64,507)	(32,025)	(75,162)
Financing activities
Payments on term bank facilities		(4,326)	(4,158)
Investment from parent		0		0
Debt issue costs			(1,832)
Distribution to parent		(60)	(148)	(60)
Payment of accrued purchase price to sellers				(10,875)
Net payments on debt				(9,704)
Issuance of debt				40,000
Other		0	100	(493)
Net cash (used in) provided by financing activities		(4,386)	(6,038)	18,868
Net change in cash and cash equivalents		(19,954)	20,640	(7,892)
Beginning cash and cash equivalents		31,918	11,278	19,170
Ending cash and cash equivalents		11,964	31,918	11,278
Subsidiary Co-Issuer: NPCQB
Operating activities
Net cash flows provided by operating activities		30,657	21,201	22,076
Investing activities
Capital expenditures		(18,728)	(17,948)	(11,096)
Acquisition of Wendy’s businesses, net of cash acquired		(44,188)		(56,841)
Investment in NPCQB		0		0
Return of investment in NPCQB		0	0	0
Proceeds from sale-leaseback transactions		8,908	0	24,182
Purchase of assets for sale-leaseback				(1,736)
Proceeds from disposition of assets		406	857	51
Net cash used in investing activities		(53,602)	(17,091)	(45,440)
Financing activities
Payments on term bank facilities		0	0
Investment from parent		44,276		57,002
Debt issue costs			0
Distribution to parent		(20,490)	(4,096)	(33,718)
Payment of accrued purchase price to sellers				0
Net payments on debt				0
Issuance of debt				0
Other		0	0	0
Net cash (used in) provided by financing activities		23,786	(4,096)	23,284
Net change in cash and cash equivalents		841	14	(80)
Beginning cash and cash equivalents		799	785	865
Ending cash and cash equivalents		1,640	799	785
Subsidiary Co-Issuer: NPC Op Co B
Operating activities
Net cash flows provided by operating activities		0	0	0
Investing activities
Capital expenditures		0	0	0
Acquisition of Wendy’s businesses, net of cash acquired		0		0
Investment in NPCQB		0		0
Return of investment in NPCQB		0	0	0
Proceeds from sale-leaseback transactions		0	0	0
Purchase of assets for sale-leaseback				0
Proceeds from disposition of assets		0	0	0
Net cash used in investing activities		0	0	0
Financing activities
Payments on term bank facilities		0	0
Investment from parent		0		0
Debt issue costs			0
Distribution to parent		0	0	0
Payment of accrued purchase price to sellers				0
Net payments on debt				0
Issuance of debt				0
Other		0	0	0
Net cash (used in) provided by financing activities		0	0	0
Net change in cash and cash equivalents		0	0	0
Beginning cash and cash equivalents		0	0	0
Ending cash and cash equivalents		$ 0	$ 0	$ 0