Condensed Consolidating Financial Statements (Balance Sheet) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 30, 2014
Assets
Current assets	$ 67,068	$ 61,910
Facilities and equipment, net	199,149	198,122
Franchise rights, net	634,419	639,045
Goodwill	294,626	294,626
Investment in subsidiary	0	0
Other assets, net	41,543	42,652
Total assets	1,236,805	1,236,355
Liabilities and member’s equity
Current liabilities	107,549	107,141
Long-term debt	589,184	591,263
Other liabilities and deferred items	60,520	60,203
Deferred income taxes	207,552	210,723
Member’s equity	272,000	267,025
Total liabilities and member’s equity	1,236,805	1,236,355
Parent Guarantor: Holdings
Assets
Current assets	0	0
Facilities and equipment, net	0	0
Franchise rights, net	0	0
Goodwill	0	0
Investment in subsidiary	272,000	267,025
Other assets, net	0	0
Total assets	272,000	267,025
Liabilities and member’s equity
Current liabilities	0	0
Long-term debt	0	0
Other liabilities and deferred items	0	0
Deferred income taxes	0	0
Member’s equity	272,000	267,025
Total liabilities and member’s equity	272,000	267,025
Subsidiary Issuer: NPC
Assets
Current assets	56,649	51,700
Facilities and equipment, net	161,311	162,248
Franchise rights, net	588,759	592,633
Goodwill	290,502	290,502
Investment in subsidiary	77,292	75,902
Other assets, net	39,722	40,794
Total assets	1,214,235	1,213,779
Liabilities and member’s equity
Current liabilities	91,045	90,701
Long-term debt	589,184	591,263
Other liabilities and deferred items	55,039	55,467
Deferred income taxes	206,967	209,323
Member’s equity	272,000	267,025
Total liabilities and member’s equity	1,214,235	1,213,779
Subsidiary Co-Issuer: NPCQB
Assets
Current assets	10,419	10,210
Facilities and equipment, net	37,838	35,874
Franchise rights, net	45,660	46,412
Goodwill	4,124	4,124
Investment in subsidiary	0	0
Other assets, net	1,821	1,858
Total assets	99,862	98,478
Liabilities and member’s equity
Current liabilities	16,504	16,440
Long-term debt	0	0
Other liabilities and deferred items	5,481	4,736
Deferred income taxes	585	1,400
Member’s equity	77,292	75,902
Total liabilities and member’s equity	99,862	98,478
Subsidiary Co-Issuer: NPC Op Co B
Assets
Current assets	0	0
Facilities and equipment, net	0	0
Franchise rights, net	0	0
Goodwill	0	0
Investment in subsidiary	0	0
Other assets, net	0	0
Total assets	0	0
Liabilities and member’s equity
Current liabilities	0	0
Long-term debt	0	0
Other liabilities and deferred items	0	0
Deferred income taxes	0	0
Member’s equity	0	0
Total liabilities and member’s equity	0	0
Eliminations
Assets
Current assets	0	0
Facilities and equipment, net	0	0
Franchise rights, net	0	0
Goodwill	0	0
Investment in subsidiary	(349,292)	(342,927)
Other assets, net	0	0
Total assets	(349,292)	(342,927)
Liabilities and member’s equity
Current liabilities	0	0
Long-term debt	0	0
Other liabilities and deferred items	0	0
Deferred income taxes	0	0
Member’s equity	(349,292)	(342,927)
Total liabilities and member’s equity	$ (349,292)	$ (342,927)