Related Party Transactions (Details) (USD $) In Millions, unless otherwise specified			3 Months Ended		6 Months Ended				3 Months Ended		6 Months Ended
	Jun. 26, 2014 property	Dec. 26, 2013	Jun. 26, 2014 RCI	Jun. 27, 2013 RCI	Jun. 26, 2014 RCI	Jun. 27, 2013 RCI	Jun. 26, 2014 Prop I theatre	Dec. 26, 2013 Prop I	Jun. 26, 2014 NCM Inc. RCI	Jun. 27, 2013 NCM Inc. RCI	Jun. 26, 2014 NCM Inc. RCI	Jun. 27, 2013 NCM Inc. RCI	Jun. 26, 2014 DCIP RCI renewal_option	Jun. 27, 2013 DCIP RCI	Dec. 26, 2013 AC JV, LLC Regal Cinemas Inc, AMC Entertainment Inc and Cinemark	Dec. 26, 2013 AC JV, LLC National Cine Media
Related Party Transactions
Management fee expenses			$ 1.4	$ 1.6	$ 2.8	$ 2.9
Related party receivables	84.0	89.1					9.8	9.8
Receivables related to intercompany transactions and cash management	74.2	79.3
Number of theatres subject to lease	3						3
Original base term of lease							15 years
Renewal extension period of the lease							10 years
Decrease in related party receivables due to the timing of intercompany cash collections and disbursements							5.1
Extended term of exhibitor services agreement											30 years
Right of first refusal period											5 years
Period prior to end of agreement term for commencement of right of first refusal											1 year
Maximum term of lease, excluding renewal options													12 years
Number of one-year fair value renewal options													10
Fair value renewal options term													1 year
Annual minimum rent per digital projection system, from effective date of agreement through the end of the lease term													1,000
Incremental annual minimum rent per digital projection system beginning six and half years from agreement effective date, upon certain conditions													2,000
Annual minimum rent, initial period													6 years 6 months
Leased digital projection systems, total rent													0.3	0.5
Ownership percentage															32.00%	4.00%
Other operating revenues, other revenue from National CineMedia
Theatre access fees - patrons									0.3	0.3	0.5	0.5
Theatre access fees - digital screens									0.1	0.1	0.2	0.2
Other NCM revenue									0	0.1	0.1	0.2
Amortization of ESA modification fees									0.1	0.1	0.3	0.2
Payments for beverage concessionaire advertising									(0.2)	(0.3)	(0.4)	(0.5)
Total									$ 0.3	$ 0.3	$ 0.7	$ 0.6