Earnings (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Earnings (Loss) Per Share [Abstract]
Anti-dilutive share-based payment awards not included in calculation of EPS	$ 500	$ 1,100
Basic and Diluted EPS [Abstract]
Net loss attributable to Intrawest Resorts Holdings, Inc.	$ (44,396)	$ (47,042)
Weighted average common shares outstanding (in shares)	39,762	45,230
Basic and Diluted EPS (in dollars per share)	$ (1.12)	$ (1.04)