UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]	Total
Balance at Mar. 31, 2014	$ 130	$ 105,924	$ (80,494)	$ 240,637	$ 186	$ 266,383
Balance (in shares) at Mar. 31, 2014	8,036					8,036
Excess tax benefit of share-based compensation	0	734	0	0	0	734
Issuance of restricted stock awards	1	0	0	0	0	1
Issuance of restricted stock awards (in shares)	88
Share-based compensation	0	3,428	0	0	0	3,428
Repurchase of common stock	0	0	(37,080)	0	0	(37,080)
Repurchase of common stock (in shares)	(726)
Net earnings	0	0	0	36,930	0	36,930
Foreign currency translation adjustment	0	0	0	0	(197)	(197)
Balance at Dec. 31, 2014	$ 131	$ 110,086	$ (117,574)	$ 277,567	$ (11)	$ 270,199
Balance (in shares) at Dec. 31, 2014	7,398					7,398