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Deferred Revenue and Performance Obligations (Tables)
3 Months Ended
Apr. 30, 2021
Revenue from Contract with Customer [Abstract]  
Summary of Deferred Revenue
The following table presents the changes to the Company’s deferred revenue:
Three Months Ended April 30,
20212020
(in thousands)
Deferred revenue, beginning of period$129,972 $92,569 
Billings59,675 53,663 
Revenue recognized(63,591)(49,786)
Deferred revenue, end of period$126,056 $96,446