Condensed Consolidating Financial Statements (Statements of Income) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013 Successor	Dec. 25, 2012 Successor	Dec. 25, 2012 Predecessor	Dec. 27, 2011 Predecessor	Dec. 31, 2013 Parent Guarantor: Holdings Successor	Dec. 25, 2012 Parent Guarantor: Holdings Successor	Dec. 27, 2011 Parent Guarantor: Holdings Predecessor	Dec. 31, 2013 Subsidiary Issuer: NPC Successor	Dec. 25, 2012 Subsidiary Issuer: NPC Successor	Dec. 27, 2011 Subsidiary Issuer: NPC Predecessor	Dec. 31, 2013 Subsidiary Co-Issuer: NPCQB Successor	Dec. 25, 2012 Subsidiary Co-Issuer: NPCQB Successor	Dec. 27, 2011 Subsidiary Co-Issuer: NPCQB Predecessor	Dec. 31, 2013 Subsidiary Co-Issuer: NPC Op Co B Successor	Dec. 25, 2012 Subsidiary Co-Issuer: NPC Op Co B Successor	Dec. 27, 2011 Subsidiary Co-Issuer: NPC Op Co B Predecessor	Dec. 31, 2013 Eliminations Successor	Dec. 25, 2012 Eliminations Successor	Dec. 27, 2011 Eliminations Predecessor
Condensed Consolidating Statements of Income
Total sales	$ 1,094,032	$ 1,048,923		$ 980,973	$ 0	$ 0	$ 0	$ 1,068,651	$ 1,048,923	$ 980,973	$ 25,381	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0
Total costs and expenses	1,014,107	970,698		954,569	0	0	0	988,544	970,698	954,569	25,563	0	0	0	0	0	0	0	0
Operating income	79,925	78,225		26,404	0	0	0	80,107	78,225	26,404	(182)	0	0	0	0	0	0	0	0
Interest expense	42,016	46,691		25,201	0	0	0	42,016	46,691	25,201	0	0	0	0	0	0	0	0	0
Loss on debt extinguishment	0	14,227		0		0			14,227			0			0			0
Equity in net income of subsidiary	0	0		0	29,855	15,020	4,706	(113)	0	0	0	0	0	0	0	0	(29,742)	(15,020)	(4,706)
Income before income taxes	37,909	17,307		1,203	29,855	15,020	4,706	37,978	17,307	1,203	(182)	0	0	0	0	0	(29,742)	(15,020)	(4,706)
Income tax expense (benefit)	8,167	2,287	2,287	(3,503)	0	0	0	8,236	2,287	(3,503)	(69)	0	0	0	0	0	0	0	0
Net income	$ 29,742	$ 15,020		$ 4,706	$ 29,855	$ 15,020	$ 4,706	$ 29,742	$ 15,020	$ 4,706	$ (113)	$ 0	$ 0	$ 0	$ 0	$ 0	$ (29,742)	$ (15,020)	$ (4,706)