Related Party Transactions Related Party Transactions (Details) (USD $) In Millions, unless otherwise specified			12 Months Ended					9 Months Ended	12 Months Ended						12 Months Ended
	Dec. 27, 2012 screen	Dec. 29, 2011	Dec. 27, 2012 Regal Cinemas Inc	Dec. 29, 2011 Regal Cinemas Inc	Dec. 30, 2010 Regal Cinemas Inc	Dec. 27, 2012 United Artists Properties I Corp theatre	Dec. 29, 2011 United Artists Properties I Corp	Sep. 27, 2012 Regal Cinemas Inc Digital Cinema Implementation Partners Llc	Dec. 27, 2012 Regal Cinemas Inc Digital Cinema Implementation Partners Llc renewal_option	Dec. 29, 2011 Regal Cinemas Inc Digital Cinema Implementation Partners Llc	Dec. 27, 2012 Regal Cinemas Inc National Cine Media Llc	Dec. 29, 2011 Regal Cinemas Inc National Cine Media Llc	Dec. 30, 2010 Regal Cinemas Inc National Cine Media Llc	Mar. 10, 2010 Digital projection systems	Dec. 27, 2012 Digital Cinema Implementation Partners [Member]
Related Party Transaction
Related Party Transaction, Expenses from Transactions with Related Party			$ 6.1	$ 6.1	$ 6.4
Due from Related Parties	95.6	87.1				9.8	9.8
Intercompany Transactions and Cash Management Receivables	85.8	77.3
Operating Lease Number of Properties (in theatres)						3
Operating Leases Annual Minimum Rent Initial Period (in years)															6 years 6 months
Operating Lease Original Base Term (in years)						15 years
Operating Lease Renewal Extension Period of Lease (in years)						10 years
Related Party Transaction Increase in Receivables						8.5
Digital projection systems, net	35.6	38.5												2.7
Operating Sublease Term (in years)									12 years
Operating Lease Number of Times Fair Value Renewal Options (in renewal options)									10
Operating Lease Fair Value Renewal Options Term (in years)								1 year
Operating Leases Future Annual Minimum Rental Payments (in USD per Digital Projection System)									1,000
Operating Leases Incremental Annual Minimum Rent Upon Certain Conditions (in USD per Digital Projection System)									2,000
Operating Leases, Rent Expense, Net									1.0	0.6
Screens with digital projection systems (in screens)	473
Related Party Transaction Exhibitor Services Agreements Extended Term (in years)											30 years
Related Party Transaction Exhibitor Services Agreements Period Covered Under Right of First Refusal (in years)											5 years
Related Party Transaction Exhibitor Services Agreement Right of First Refusal Commencement Period (in years)											1 year
Other operating revenues, other revenue from National CineMedia
Theatre Access Fees Per Patron											1.2	1.1	1.2
Theatre Access Fees Per Digital Screen											0.5	0.4	0.4
Other Ncm Revenue											0.2	0.2	0.1
Amortization of Esa Modification Fees											0.4	0.4	0.4
Payment for Beverage Concessionaire Advertising											(1.1)	(1.1)	(1.1)
Total Other Operating Revenue											$ 1.2	$ 1.0	$ 1.0