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Subsequent Events	9 Months Ended
Subsequent Events	Oct. 31, 2015
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On November 24, 2015, we announced that our Board of Directors has canceled the remainder of the December 2013 share repurchase program, under which $40 million was remaining as of October 31, 2015,and approved a new $300 million share repurchase authorization for the Company's common stock. We also announced that our Board of Directors has declared a quarterly dividend of $0.0775 per share on our common stock. The dividend will be payable on December 21, 2015 to shareholders of record at the close of business on December 7, 2015. Although it is our Company’s intention to continue to pay a quarterly cash dividend in the future, any decision to pay future cash dividends will be made by the Board of Directors and will depend on future earnings, financial condition and other factors.