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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Jan. 31, 2020
Accounting Policies [Abstract]  
Restricted Cash as Shown on the Consolidated Balance Sheet Cash as reported on the consolidated statements of cash flows consists of the following (in thousands):
As of January 31,
202020192018
Cash and cash equivalents
$107,638  $158,672  $43,247  
Restricted cash (1)
3,352  3,367  18,052  
Cash, cash equivalents and restricted cash
$110,990  $162,039  $61,299  
(1) The restricted cash balance as of January 31, 2019 decreased to $3.4 million from $18.1 million as of January 31, 2018 as a result of the removal of restrictions on letter of credit funds.
Schedule of Estimated Useful Lives of Company's Assets
The estimated useful lives of our assets are as follows:
Computer software
2 years
Computer equipment
2-3 years
Furniture and office equipment
3 years
Leasehold improvements Shorter of remaining lease term or estimated useful life
The cost and accumulated depreciation and amortization of property and equipment are as follows (in thousands):
As of January 31,
20202019
Computer equipment and software $22,489  $18,259  
Office furniture and equipment 12,672  11,907  
Leasehold improvements 24,236  24,316  
Property and equipment, gross 59,397  54,482  
Less: accumulated depreciation and amortization (37,409) (26,863) 
Property and equipment, net $21,988  $27,619