Summary of Significant Accounting Policies (Tables)
3 Months Ended
Apr. 30, 2019
Accounting Policies [Abstract]  
Schedule of Cash and Cash Equivalents
Cash as reported on the condensed consolidated statements of cash flows consists of the following (in thousands):
 
April 30,
 
2019
 
2018
Cash and cash equivalents
$
208,799

 
$
49,657

Restricted cash
862

 
2,321

Total cash, cash equivalents, and restricted cash shown in the condensed consolidated statement of cash flows
$
209,661

 
$
51,978

Schedule of Restricted Cash and Cash Equivalents
Cash as reported on the condensed consolidated statements of cash flows consists of the following (in thousands):
 
April 30,
 
2019
 
2018
Cash and cash equivalents
$
208,799

 
$
49,657

Restricted cash
862

 
2,321

Total cash, cash equivalents, and restricted cash shown in the condensed consolidated statement of cash flows
$
209,661

 
$
51,978