XML 35 R48.htm IDEA: XBRL DOCUMENT v3.19.3
Operating Leases - Components of Lease Expense (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Oct. 31, 2019
Oct. 31, 2019
Lease Cost [Abstract]    
Operating lease costs $ 684 $ 1,898
Variable lease costs 306 784
Total lease cost $ 990 $ 2,682