Indebtedness - Narrative (Details)	Aug. 23, 2024 USD ($)	Oct. 08, 2021 USD ($)	Jan. 31, 2026 USD ($)
4.50% Senior Notes due 2029
Debt Instrument [Line Items]
Stated interest rate (as a percent)			4.50%
4.50% Senior Notes due 2029 \| Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)		4.50%
Principal amount		$ 600,000,000
Accrued interest			$ 9,000,000.0
Effective interest rate (as a percent)			4.72%
4.50% Senior Notes due 2029 \| Senior Notes \| October 1, 2025
Debt Instrument [Line Items]
Redemption price (as a percent)		101.125%
4.50% Senior Notes due 2029 \| Senior Notes \| October 1, 2026 and thereafter
Debt Instrument [Line Items]
Redemption price (as a percent)		100.00%
Credit Agreement
Debt Instrument [Line Items]
Stated interest rate (as a percent)			5.02%
Effective interest rate (as a percent)			5.02%
Maximum borrowing capacity of future commitments	$ 450,000,000
Maximum leverage ratio	3.85		5.00
Minimum interest coverage ratio			3.00
Credit Agreement \| Revolving Credit Facility \| Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Credit spread adjustment on variable rate (as a percent)	0.10%
Credit Agreement \| Revolving Credit Facility \| Secured Overnight Financing Rate (SOFR) \| Minimum
Debt Instrument [Line Items]
Variable rate borrowing spread (as a percent)	1.25%
Credit Agreement \| Revolving Credit Facility \| Secured Overnight Financing Rate (SOFR) \| Maximum
Debt Instrument [Line Items]
Variable rate borrowing spread (as a percent)	2.50%
Credit Agreement \| Revolving Credit Facility \| Customary Base Rate \| Minimum
Debt Instrument [Line Items]
Variable rate borrowing spread (as a percent)	0.25%
Credit Agreement \| Revolving Credit Facility \| Customary Base Rate \| Maximum
Debt Instrument [Line Items]
Variable rate borrowing spread (as a percent)	1.50%
Credit Agreement \| Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Facility term (in years)	5 years
Credit facility, amount	$ 1,000,000,000.0
Credit Agreement \| Line of Credit \| Revolving Credit Facility \| Minimum
Debt Instrument [Line Items]
Unused capacity commitment fee	0.25%
Credit Agreement \| Line of Credit \| Revolving Credit Facility \| Maximum
Debt Instrument [Line Items]
Unused capacity commitment fee	0.50%
Credit Agreement \| Letter of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility, amount	$ 25,000,000

HEALTHEQUITY, INC. 10-K