Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Operating Activities
Net income (loss)	$ (65,857)	$ (26,503)	$ 14,166
Adjustments to reconcile net income to net cash flows from operating activities:
Equity earnings of unconsolidated joint ventures	449	(792)	(974)
Distributions of earnings from unconsolidated joint ventures	240	864	670
Net loss (gain) on sale of assets	1	2	41
Amortization of operating leases	21,458	20,765
Amortization of finance leases	93	165
Change in operating lease liabilities	(20,400)	(20,137)
Interest on hedged derivatives		(10)	5
Change in net deferred tax assets	401	23,115	(1,841)
Depreciation and amortization	22,317	22,747	22,275
Impairment of long-lived assets	217
Other amortization	1,046	952	1,161
Share-based compensation expense	1,421	1,463	1,458
Net changes in operating assets and liabilities:
Receivables	4,805	704	2,868
Prepaid and other assets	(1,307)	(216)	(2,761)
Payments for accrued pension	(683)	(683)	(2,961)
Accounts payable and accrued expenses	9,330	508	2,562
Film rent payable	(6,323)	48	(4,525)
Taxes payable	(34)	(1,514)	(994)
Deferred revenue and other liabilities	2,625	3,129	1,495
Net cash provided by (used in) operating activities	(30,201)	24,607	32,645
Investing Activities
Purchases of and additions to operating and investment properties	(18,526)	(45,709)	(63,529)
Acquisition of business		(7,877)
Change in restricted cash		1,334	(1,326)
Cash settlement on insurance claim		323
Contributions to unconsolidated joint ventures	(245)
Net cash provided by (used in) investing activities	(18,771)	(51,929)	(64,855)
Financing Activities
Repayment of long-term borrowings	(29,896)	(52,394)	(54,374)
Repayment of finance lease principal	(92)	(160)
Proceeds from borrowings	90,323	90,507	90,895
Capitalized borrowing costs	(97)	(526)	(1,230)
Repurchase of Class A nonvoting common stock	(670)	(11,152)	(2,316)
Proceeds (payments) from stock option exercises	(43)	(315)	344
Noncontrolling interest contributions	55	90	82
Noncontrolling interest distributions	(250)	(42)	(191)
Net cash provided by (used in) financing activities	59,330	26,008	33,210
Effect of exchange rate changes on cash	4,333	322	(1,541)
Net increase (decrease) in cash and cash equivalents	14,691	(992)	(541)
Cash and cash equivalents at the beginning of the year	12,135	13,127	13,668
Cash and cash equivalents at the end of the year	26,826	12,135	13,127
Supplemental Disclosures
Interest paid	10,240	10,650	8,035
Income taxes paid (refunded), net	(2,333)	7,038	8,941
Non-Cash Transactions
Lease make-good accrual	62	902
Additions to long-term borrowings		3,519
Additions to operating and investing properties through accrued expenses	$ 4,346	$ 6,003	$ 3,969