Consolidated Statements of Changes in Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Deficit	Accumulated Other Comprehensive Income (Loss)	Treasury Stock
Balance (in shares) at Mar. 31, 2013		44,989
Balance at Mar. 31, 2013	$ 276,916	$ 465	$ 467,096	$ (163,235)	$ 7,694	$ (35,104)
Increase (Decrease) in Stockholders' Equity
Net income (loss)	(68,503)	0	0	(68,503)	0	0
Other comprehensive income (loss)	10,490	0	0	0	10,490	0
Issuance of restricted shares	(178)	$ 0	(3,164)	0	0	2,986
Issuance of restricted shares (in shares)		129
Stock-based compensation	2,909		2,909
Exercise of stock options	250	$ 0	(1,814)	0	0	2,064
Exercise of stock options (in shares)		89
Balance (in shares) at Mar. 31, 2014		45,207
Balance at Mar. 31, 2014	221,884	$ 465	465,027	(231,738)	18,184	(30,054)
Increase (Decrease) in Stockholders' Equity
Net income (loss)	(14,143)	0	0	(14,143)	0	0
Other comprehensive income (loss)	(46,980)	0	0	0	(46,980)	0
Issuance of restricted shares	(615)	$ 0	(8,238)	0	0	7,623
Issuance of restricted shares (in shares)		239
Stock-based compensation	4,512		4,512
Exercise of stock options	24	$ 0	(110)	0	0	134
Exercise of stock options (in shares)		6
Balance (in shares) at Mar. 31, 2015		45,452
Balance at Mar. 31, 2015	164,682	$ 465	461,191	(245,881)	(28,796)	(22,297)
Increase (Decrease) in Stockholders' Equity
Net income (loss)	(53,629)	0	0		0	0
Other comprehensive income (loss)	(2,629)	0	0	0	(2,629)	0
Issuance of restricted shares	(717)	$ 0	(13,144)	0	0	12,427
Issuance of restricted shares (in shares)		445
Stock-based compensation	4,774		4,774
Exercise of stock options	0	$ 0	0	0	0	0
Exercise of stock options (in shares)		0
Balance (in shares) at Mar. 31, 2016		45,897
Balance at Mar. 31, 2016	$ 112,481	$ 465	$ 452,821	$ (299,510)	$ (31,425)	$ (9,870)