Prepaid expenses were $247.3 million and $144.9 million as of January 31, 2025 and January 31, 2024, respectively. Other current assets were $67.1 million and $38.3 million as of January 31, 2025 and January 31, 2024, respectively.

Property and equipment, net consisted of the following (in thousands):


	January 31,
	2025		2024
Data center and other computer equipment	$	755,728	$	525,890
Capitalized internal-use software and website development costs	265,987		183,117
Leasehold improvements	42,230		39,168
Purchased software	15,876		10,907
Furniture and equipment	10,485		8,524
Construction in progress	220,088		190,832
	1,310,394		958,438
Less: Accumulated depreciation and amortization	(521,754)		(338,266)
Property and equipment, net	$	788,640	$	620,172

Construction in progress primarily includes data center equipment purchased that has not yet been placed in service. Data center equipment that was purchased but not yet been placed into service was $180.1 million and $167.5 million as of January 31, 2025 and January 31, 2024, respectively.

Depreciation and amortization expense of property and equipment was $188.0 million, $126.8 million, and $77.2 million, during the fiscal years ended January 31, 2025, January 31, 2024, and January 31, 2023, respectively.

The Company capitalized $91.9 million, $77.9 million, and $49.3 million in internal-use software and website development costs during the fiscal years ended January 31, 2025, January 31, 2024, and January 31, 2023, respectively. Amortization expense associated with internal-use software and website development costs totaled $54.8 million, $37.3 million, and $21.5 million during the fiscal years ended January 31, 2025, January 31, 2024, and January 31, 2023, respectively. The net book

value of capitalized internal-use software and website development costs was $144.0 million and $106.9 million as of January 31, 2025 and January 31, 2024, respectively.

Total intangible assets, net consisted of the following (dollars in thousands):


	January 31, 2025						Weighted-Average Remaining Useful Life
	Gross Carrying Amount		Accumulated Amortization		Net Amount
							(in months)
Developed technology	$	168,416	$	63,783	$	104,633	55
Customer relationships	24,502		8,454		16,048		65
Intellectual property and other acquired intangible assets	15,837		3,404		12,433		112
Total	$	208,755	$	75,641	$	133,114


	January 31, 2024						Weighted-Average Remaining Useful Life
	Gross Carrying Amount		Accumulated Amortization		Net Amount
							(in months)
Developed technology	$	131,346	$	41,854	$	89,492	60
Customer relationships	17,027		5,825		11,202		68
Intellectual property and other acquired intangible assets	15,842		2,018		13,824		123
Total	$	164,215	$	49,697	$	114,518

Amortization expense of intangible assets was $26.0 million, $18.4 million, and $16.6 million, during the fiscal years ended January 31, 2025, January 31, 2024, and January 31, 2023, respectively.

The estimated aggregate future amortization expense of intangible assets as of January 31, 2025 was as follows (in thousands):


	Total
Fiscal 2026	$	29,423
Fiscal 2027	27,248
Fiscal 2028	26,735
Fiscal 2029	23,982
Fiscal 2030	14,605
Thereafter	11,121
Total amortization expense	$	133,114

The change in goodwill during the fiscal year ended January 31, 2025 consisted of the following (in thousands):


	Amounts
Goodwill as of January 31, 2024	$	638,041
Goodwill acquired (1)	274,981

Foreign currency translation	(217)
Goodwill as of January 31, 2025	$	912,805

(1)Goodwill acquired resulted from the acquisitions of Flow Security and A.S. Adaptive Shield Ltd. Refer to Note 12 for additional information.

Accrued payroll and benefits consisted of the following (in thousands):


	January 31,
	2025		2024
Accrued commissions	$	174,322	$	116,870
Accrued payroll and related expenses	69,197		58,579
Accrued bonuses	42,510		36,860
Employee stock purchase plan	33,214		22,315
Accrued payroll and benefits	$	319,243	$	234,624