Subsequent Events (Narrative) (Details) $ in Thousands								12 Months Ended
	Mar. 13, 2020 USD ($) item	Mar. 12, 2020	Mar. 06, 2020 USD ($)	Aug. 08, 2019	Mar. 05, 2019	Aug. 31, 2016 USD ($)	Mar. 03, 2016 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017
Subsequent Event [Line Items]
Contractual facility								$ 283,138	$ 252,929
Bank Of America Credit Facility [Member]
Subsequent Event [Line Items]
Contractual facility							$ 55,000	$ 55,000	$ 55,000
Maturity date				Sep. 01, 2020	May 01, 2020			Mar. 06, 2023	May 01, 2020
Extension period				4 months	6 months
Bank Of America Credit Facility [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Contractual facility			$ 55,000
Maturity date			Mar. 06, 2023
Cinemas 1, 2, 3 Term Loan [Member]
Subsequent Event [Line Items]
Contractual facility						$ 20,000		$ 18,658	$ 19,086
Maturity date								Apr. 01, 2022	Sep. 01, 2019
Interest rate										3.25%
Cinemas 1, 2, 3 Term Loan [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Contractual facility	$ 25,000
Maturity date	Apr. 01, 2022
Number of extension options | item	2
Extension period	6 months
Interest rate	4.25%
Valley Nattional Bank [Member] | Cinemas 1, 2, 3 Term Loan [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Contractual facility	$ 25,000
Maturity date	Apr. 01, 2022
Number of extension options | item	2
Extension period	6 months
Interest rate	4.25%
Village East Cinema [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Lease expiration date		Jan. 31, 2022