XML 36 R23.htm IDEA: XBRL DOCUMENT

Subsequent Events	6 Months Ended
Subsequent Events	Jul. 31, 2018
Subsequent Events [Abstract]
Subsequent Events	17. Subsequent Events From August 1, 2018 to September 6, 2018, the Company repurchased a total of 598,892 shares for approximately $23.1 million in cash. As of September 6, 2018, the Company had repurchased a total of 3,655,417 shares for approximately $163.6 million in cash and there was approximately $43.0 million available for repurchases under the repurchase program through June 4, 2019.