Acquisitions - Additional Information (Detail)				1 Months Ended	12 Months Ended
	Jul. 25, 2016 $ / shares	Mar. 03, 2016 USD ($) $ / shares	Oct. 06, 2015 USD ($) Theatre screen	Jan. 31, 2016 USD ($) Theatre	Dec. 31, 2015 USD ($)	Jun. 30, 2016 USD ($)
Business Acquisition [Line Items]
Goodwill					$ 151,716,000	$ 153,549,000
American Multi-Cinema
Business Acquisition [Line Items]
Share price (usd per share) | $ / shares		$ 30.00
Breakup fee		$ 30,000,000
Termination fee		$ 50,000,000
Business acquisition, number of theatres acquired | Theatre				2
Business acquisition, number of screens acquired | Theatre				22
Working capital adjustment				$ 75,000
Goodwill				$ 1,833,000
American Multi-Cinema | Subsequent Event
Business Acquisition [Line Items]
Share price (usd per share) | $ / shares	$ 33.06
Business combination, consideration transferred, percentage of total shares to be converted Into cash	70.00%
American Multi-Cinema | Subsequent Event | Common Class A
Business Acquisition [Line Items]
Business combination, conversion of stock, conversion ratio	1.0819
Business combination, consideration transferred, percentage of total shares to be converted into shares of acquiree	30.00%
Sundance Cinemas, LLC
Business Acquisition [Line Items]
Business acquisition, number of theatres acquired | Theatre			5
Business acquisition, number of screens acquired | screen			37
Business acquisition cash paid			$ 35,843,000
Working capital adjustment			130,000
Recognized identifiable assets acquired and Liabilities assumed, liabilities			2,242,000
Goodwill			25,115,000
Intangible assets			200,000
Recognized identifiable assets acquired and liabilities assumed, noncurrent liabilities			$ 520,000
Weighted average useful life					5 years
Revenue recorded during period					$ 7,394,000
Pro forma information, earnings or loss of acquiree since acquisition date					668,000
Acquisition related costs					$ 300,000