SEGMENT INFORMATION (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Mar. 31, 2015
Segment information:
Revenue	$ 45,762	$ 49,065	$ 142,522	$ 146,644
Property and equipment, net	216,015		216,015		$ 206,276
Intangible assets	10,988		10,988		13,205
Goodwill	10,193		10,193		10,193
Assets	264,569		264,569		250,290
Canada
Segment information:
Revenue	28,955	28,065	82,221	83,277
Property and equipment, net	107,291		107,291		92,436
Intangible assets	5,983		5,983		7,457
Goodwill	8,284		8,284		8,284
Assets	138,966		138,966		122,395
United States
Segment information:
Revenue	16,807	$ 21,000	60,301	$ 63,367
Property and equipment, net	108,724		108,724		113,840
Intangible assets	5,005		5,005		5,748
Goodwill	1,909		1,909		1,909
Assets	$ 125,603		$ 125,603		$ 127,895