Supplemental Information to Condensed Consolidated Statements of Cash Flows (Parenthetical) (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Schedule of Cash Flow, Supplemental [Line Items]
Additions to theatre properties and equipment included in accounts payable	$ 23,436	$ 40,625