Subsequent Events	9 Months Ended
Oct. 31, 2018
Subsequent Events [Abstract]
Subsequent Events	17. Subsequent Events From November 1, 2018 to December 6, 2018, the Company repurchased a total of 104,160 shares for approximately $3.5 million in cash. As of December 6, 2018, the Company had repurchased a total of 3,985,876 shares for approximately $174.8 million in cash and there was approximately $31.9 million available for repurchases under the repurchase program through June 4, 2019.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

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