BASIS OF PRESENTATION, CONSOLIDATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Impact of Changes in Foreign Currency Exchange Rate (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Mar. 31, 2017
Schedule of Foreign Currency [Line Items]
Revenue	$ 360,735	$ 337,443	$ 1,086,520	$ 1,064,308
Operating expense	(361,637)	(347,726)	(1,117,307)	(1,111,944)
Earnings from unconsolidated affiliates, net of losses	1,996	766	3,394	4,777
Loss before benefit for income taxes	(23,356)	(29,608)	(94,533)	(108,265)
Provision for income taxes	13,419	3,560	(2,546)	11,038
Net income (loss)	(9,937)	$ (26,048)	(97,079)	$ (97,227)
Total stockholders’ investment	1,253,965		1,253,965		$ 1,294,232
Quarter To Date | Impact of Changes in Foreign Currency Exchange Rates
Schedule of Foreign Currency [Line Items]
Revenue	10,826
Operating expense	(9,028)
Earnings from unconsolidated affiliates, net of losses	484
Non-operating expense	(1,270)
Loss before benefit for income taxes	1,012
Provision for income taxes	1,057
Net income (loss)	2,069
Cumulative translation adjustment	(74)
Total stockholders’ investment	1,995		1,995
Year To Date | Impact of Changes in Foreign Currency Exchange Rates
Schedule of Foreign Currency [Line Items]
Revenue			(4,850)
Operating expense			593
Earnings from unconsolidated affiliates, net of losses			908
Non-operating expense			2,977
Loss before benefit for income taxes			(372)
Provision for income taxes			2,933
Net income (loss)			2,561
Cumulative translation adjustment			20,924
Total stockholders’ investment	$ 23,485		$ 23,485