Condensed Consolidated Statement of Stockholders' Equity (Unaudited) - 9 months ended Oct. 31, 2015 - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Loss [Member]	Retained Earnings [Member]
Balance at Jan. 31, 2015	$ 475,930	$ 316	$ 395,395	$ (600)	$ (6,874)	$ 87,693
Balance (in shares) at Jan. 31, 2015		31,632		0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(17,205)					(17,205)
Other comprehensive income	360				360
Dividends on common stock, $0.43 per share	(13,916)					(13,916)
Deferred compensation			163	$ (163)
Issuance of equity awards, net	543	$ 4	539
Issuance of equity awards, net (in shares)		388
Tax withholdings paid for net settlement of stock awards	(3,545)		(3,545)
Stock-based compensation expense	8,926		8,926
Tax benefit from stock-based compensation	540		540
Balance at Oct. 31, 2015	$ 451,633	$ 320	$ 402,018	$ (763)	$ (6,514)	$ 56,572
Balance (in shares) at Oct. 31, 2015		32,020		0