Fair Value Measurements (Tables)

12 Months Ended

Jan. 31, 2021

Fair Value Disclosures [Abstract]

Schedule of Fair Value Measurements

The following table presents the fair value hierarchy for the Company’s assets measured at fair value on a recurring basis as of January 31, 2021 (in thousands):

	Level 1		Level 2		Total
Cash equivalents:
Money market funds	$	334,891	$	—	$	334,891
Commercial paper	—		242,037		242,037
Corporate notes and bonds	—		58,970		58,970
U.S. government securities	—		23,700		23,700
Certificates of deposit	—		23,503		23,503
Short-term investments:
Corporate notes and bonds	—		1,318,573		1,318,573
U.S. government and agency securities	—		829,318		829,318
Commercial paper	—		711,372		711,372
Certificates of deposit	—		228,624		228,624
Long-term investments:
Corporate notes and bonds	—		968,580		968,580
U.S. government and agency securities	—		186,945		186,945
Certificates of deposit	—		9,750		9,750
Total	$	334,891	$	4,601,372	$	4,936,263

The following table presents the fair value hierarchy for the Company’s assets measured at fair value on a recurring basis as of January 31, 2020 (in thousands):

	Level 1		Level 2		Total
Cash equivalents:
U.S. government and agency securities	$	—	$	32,472	$	32,472
Money market funds	21,379		—		21,379
Commercial paper	—		446		446
Short-term investments:
U.S. government securities	—		245,756		245,756
Corporate notes and bonds	—		23,674		23,674
Commercial paper	—		17,008		17,008
Certificates of deposit	—		10,899		10,899
Asset-backed securities	—		9,507		9,507
Long-term investments:
U.S. government and agency securities	—		14,197		14,197
Corporate notes and bonds	—		7,025		7,025
Certificates of deposit	—		1,705		1,705
Asset-backed securities	—		605		605
Total	$	21,379	$	363,294	$	384,673