Intangible Assets (Narrative) (Details) - NCM, LLC. - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||||
---|---|---|---|---|---|---|
Sep. 24, 2020 |
Mar. 26, 2020 |
Sep. 26, 2019 |
Mar. 28, 2019 |
Sep. 24, 2020 |
Sep. 26, 2019 |
|
Finite-Lived Intangible Assets [Line Items] | ||||||
Common membership units issued, net of returned | 3,022,959 | 1,044,665 | ||||
Increase (decrease) in intangible assets, net | $ 10.5 | $ 7.6 | ||||
AMC and Cinemark | ||||||
Finite-Lived Intangible Assets [Line Items] | ||||||
Increase (decrease) in intangible assets, net | $ 0.0 | $ 5.6 | $ 1.4 | $ 13.7 | ||
Integration and other encumbered payments, related parties - financing activities | $ 0.0 | $ 5.7 | $ 9.7 | $ 16.3 | ||
Minimum | ||||||
Finite-Lived Intangible Assets [Line Items] | ||||||
Percentage increase (decrease) in theater attendance for Common Unit adjustment to occur | (2.00%) | |||||
Maximum | ||||||
Finite-Lived Intangible Assets [Line Items] | ||||||
Percentage increase (decrease) in theater attendance for Common Unit adjustment to occur | 2.00% |