Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Jan. 31, 2023	Jan. 31, 2022	Jan. 31, 2021
Deferred tax assets:
Net operating loss carryforwards	$ 126,654	$ 136,226
Stock-based compensation	5,075	7,271
Allowance for doubtful accounts	220	523
Operating lease liability	28,960	32,156
Accrued expenses	2,893	2,372
Unearned revenue	110	61
Capitalized research & experimental expenditures	12,781	0
Intangible assets	10,943	10,625
Other	169	339
Total deferred tax assets	187,805	189,573
Less: valuation allowance	(155,604)	(151,205)	$ (129,200)
Deferred tax assets, net of valuation allowance	32,201	38,368
Deferred tax liabilities:
Property and equipment	(1,411)	(2,440)
Costs to obtain revenue contracts	(9,179)	(11,041)
Operating lease right-of-use assets	(20,795)	(23,259)
Other	(877)	(874)
Total deferred tax liabilities	(32,262)	(37,614)
Net deferred tax asset (liability)	$ (61)
Net deferred tax asset (liability)		$ 754