Organization and Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jul. 31, 2018

Accounting Policies [Abstract]

Schedule of Cash, Cash Equivalents and Restricted Cash

The following table presents cash, cash equivalents and restricted cash reported on the condensed consolidated balance sheets and the sums are presented on the condensed consolidated statements of cash flows:

	As of
	July 31, 2018		January 31, 2018		July 31, 2017		January 31, 2017
	(in thousands)
Cash and cash equivalents	$	295,289	$	346,672	$	309,738	$	322,872
Restricted cash		9		9		9		8
Total as presented in the consolidated statements of cash flows	$	295,298	$	346,681	$	309,747	$	322,880