Summary of Impairment Charges (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2020 USD ($)
Impaired Long-Lived Assets Held and Used [Line Items]
Total Impairment	$ 16,619
U.S. Operating Segment
Impaired Long-Lived Assets Held and Used [Line Items]
Theatre properties	3,643
Theatre operating lease right-of-use assets	5,952
Total Impairment	9,595
International Operating Segment
Impaired Long-Lived Assets Held and Used [Line Items]
Theatre properties	4,484
Theatre operating lease right-of-use assets	2,540
Total Impairment	$ 7,024