Segment Information - Segment EBITDA (Details) - Operating Segments - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Nov. 30, 2015	Nov. 30, 2014	Nov. 30, 2015	Nov. 30, 2014
Segment Reporting, Other Significant Reconciling Item [Line Items]
EBITDA	$ 16,190	$ 25,905	$ 35,635	$ 67,209
Hockey
Segment Reporting, Other Significant Reconciling Item [Line Items]
EBITDA	7,327	12,917	26,528	51,894
Baseball/Softball
Segment Reporting, Other Significant Reconciling Item [Line Items]
EBITDA	7,886	11,474	9,077	15,198
Other Sports
Segment Reporting, Other Significant Reconciling Item [Line Items]
EBITDA	$ 977	$ 1,514	$ 30	$ 117