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Property and Equipment, Net
12 Months Ended
Jan. 31, 2019
Property, Plant and Equipment [Abstract]  
Property and Equipment, Net
Property and Equipment, Net
Property and equipment, net consisted of the following (in thousands): 
 
January 31,
 
2019
 
2018
Land
$
22,694

 
$
8,451

Buildings
433,863

 
255,093

Computers, equipment, and software
539,090

 
425,025

Furniture and fixtures
38,840

 
34,809

Leasehold improvements
162,657

 
132,209

Property and equipment, gross (1)
1,197,144

 
855,587

Less accumulated depreciation and amortization
(400,237
)
 
(308,978
)
Property and equipment, net
$
796,907

 
$
546,609


(1)
Property and equipment, gross included construction-in-progress for owned real estate projects of $355 million and $177 million that had not yet been placed in service as of January 31, 2019 and 2018, respectively.
Depreciation expense totaled $147 million, $115 million, and $92 million for fiscal 20192018, and 2017, respectively. Interest costs capitalized to property and equipment totaled $11 million, $8 million, and $3 million for fiscal 2019, 2018, and 2017, respectively.