Related Party Transactions Other Operating Revenue (Details) (Regal Cinemas Inc, National Cine Media Llc, USD $) In Millions, unless otherwise specified	12 Months Ended
	Jan. 01, 2015	Dec. 26, 2013	Dec. 27, 2012
Regal Cinemas Inc | National Cine Media Llc
Related Party Transaction
Theatre access fees - patrons	$ 1.0	$ 1.1	$ 1.2
Theatre access fees - digital screens	0.4	0.5	0.5
Other NCM revenue	0.2	0.2	0.2
Amortization of ESA modification fees	0.5	0.4	0.4
Payments for beverage concessionaire advertising	(0.8)	(1.0)	(1.1)
Total	$ 1.3	$ 1.2	$ 1.2