Note 2 - Acquisitions and Divestitures - Schedule of Business Acquisition Assets and Liabilities of Lattner Entertainment Group Illinois (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Jun. 01, 2018	Dec. 31, 2017	Dec. 31, 2016
Goodwill	$ 1,083,287	$ 1,062,102		$ 888,224	$ 826,476
Lattner Entertainment Group Illinois, LLC [Member]
Current assets	10,638
Property and equipment	9,496
Other assets	2,933
Intangible assets	58,000
Total acquired assets	81,067
Current liabilities	1,062
Total liabilities assumed	1,062
Net identifiable assets acquired	80,005
Goodwill	30,529
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net, Total	110,534		$ 110,500
Previously Reported [Member] | Lattner Entertainment Group Illinois, LLC [Member]
Current assets		10,638
Property and equipment		9,307
Other assets		1,963
Intangible assets		58,000
Total acquired assets		79,908
Current liabilities		1,062
Total liabilities assumed		1,062
Net identifiable assets acquired		78,846
Goodwill		31,692
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net, Total		$ 110,538
Restatement Adjustment [Member] | Lattner Entertainment Group Illinois, LLC [Member]
Current assets	0
Property and equipment	189
Other assets	970
Intangible assets	0
Total acquired assets	1,159
Current liabilities	0
Total liabilities assumed	0
Net identifiable assets acquired	1,159
Goodwill	(1,163)
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net, Total	$ (4)