STOCKHOLDERS' INVESTMENT, EARNINGS PER SHARE AND ACCUMULATED COMPREHENSIVE INCOME (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended												12 Months Ended
	May 18, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015	Nov. 04, 2016
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Common Stock shares reserved		7,946,425												7,946,425
Common stock, shares outstanding, beginning balance					34,976,743				34,838,374					34,976,743	34,838,374
Issuance of restricted stock														237,248	138,369
Common stock, shares outstanding, ending balance		35,213,991				34,976,743				34,838,374				35,213,991	34,976,743	34,838,374
Weighted average price per share of issued restricted stock and restricted stock units														$ 17.41	$ 45.69
Percentage of stock owned by U.S. citizens requirement														75.00%
Percentage of stock owned by other than U.S. citizens requirement														25.00%
Common shares owned by foreign addresses		5,203,000												5,203,000
Percentage of total outstanding common shares owned by foreign addresses														15.00%
Cash dividends declared per common share		$ 0.07	$ 0.07	$ 0.07	$ 0.07	$ 0.07	$ 0.34	$ 0.34	$ 0.34	$ 0.32	$ 0.32	$ 0.32	$ 0.32	$ 0.28	$ 1.09	$ 1.28
Repurchases of common stock, shares																1,160,940
Dividends paid														$ (9,831)	$ (38,076)	$ (45,078)
Repurchase of Common Stock														0	0	80,831
Expired Remaining Authorized Repurchase Amount																	$ 150,000
Income (loss) available to common stockholders – basic														(170,536)	(73,940)	84,300
Income (loss) available to common stockholders - diluted														$ (170,536)	$ (73,940)	$ 84,300
Weighted average number of common shares outstanding - basic														35,044,040	34,893,844	35,193,480
Net effect of dilutive stock options, restricted stock units and restricted stock awards based on the treasury stock method														0	0	335,125
Weighted average number of common shares outstanding - diluted														35,044,040	34,893,844	35,528,605
Basic earnings (loss) per share		(2.22)	(0.62)	(0.85)	(1.17)	(0.72)	0.09	(1.21)	(0.27)					$ (4.87)	$ (2.12)	$ 2.40
Diluted earnings (loss) per share		$ (2.22)	$ (0.62)	$ (0.85)	$ (1.17)	$ (0.72)	$ 0.09	$ (1.21)	$ (0.27)					$ (4.87)	$ (2.12)	$ 2.37
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated other comprehensive loss, beginning balance					$ (289,819)				$ (270,329)				$ (156,506)	$ (289,819)	$ (270,329)	$ (156,506)
Other comprehensive income before reclassification														(44,089)	(25,778)	(119,146)
Reclassification from accumulated other comprehensive income														5,631	6,288	5,323
Net current period other comprehensive loss														(38,458)	(19,490)	(113,823)
Accumulated other comprehensive income, foreign exchange rate impact		$ 0				$ 0				$ 0				0	0	0
Accumulated other comprehensive loss, ending balance		(328,277)				(289,819)				(270,329)				(328,277)	(289,819)	(270,329)
Currency translation adjustment
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated other comprehensive loss, beginning balance					(67,365)				(39,066)				57,812	(67,365)	(39,066)	57,812
Other comprehensive income before reclassification														(26,947)	(20,195)	(76,845)
Reclassification from accumulated other comprehensive income														0	0	0
Net current period other comprehensive loss														(26,947)	(20,195)	(76,845)
Accumulated other comprehensive income, foreign exchange rate impact		(55,409)				(8,104)				(20,033)				(55,409)	(8,104)	(20,033)
Accumulated other comprehensive loss, ending balance		(149,721)				(67,365)				(39,066)				(149,721)	(67,365)	(39,066)
Pension liability adjustment
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated other comprehensive loss, beginning balance					$ (222,454)				$ (231,263)				$ (214,318)	(222,454)	(231,263)	(214,318)
Other comprehensive income before reclassification														(17,142)	(5,583)	(42,301)
Reclassification from accumulated other comprehensive income														5,631	6,288	5,323
Net current period other comprehensive loss														(11,511)	705	(36,978)
Accumulated other comprehensive income, foreign exchange rate impact		55,409				8,104				20,033				55,409	8,104	20,033
Accumulated other comprehensive loss, ending balance		$ (178,556)				$ (222,454)				$ (231,263)				$ (178,556)	$ (222,454)	$ (231,263)
Subsequent event
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Cash dividends declared per common share	$ 0.07
Stock options
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Outstanding														1,815,020	1,194,783	682,800
Weighted average exercise price														$ 31.98	$ 62.11	$ 69.04
Restricted stock awards
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Outstanding														541,014	286,804	0
Weighted average exercise price														$ 26.76	$ 37.27	$ 0.00