Joint Venture and Equity Method Investment - Schedule of Intercompany Eliminations (Details) - USD ($) $ in Thousands		3 Months Ended
		Apr. 30, 2023		Apr. 30, 2022	Jan. 31, 2023
Noncontrolling Interest [Line Items]
Revenue		$ 126,878		$ 87,407
Cost of revenue		13,939		9,848
Gross profit		112,939		77,559
Sales and marketing		86,537		66,710
Research and development		50,387		31,830
General and administrative		34,248		21,892
Total operating expenses		171,172		120,432
Loss from operations		(58,233)		(42,873)
Interest income		7,315		526
Total other income, net		253		18,448
Net loss		(52,899)		(26,613)
Net loss attributable to noncontrolling interest		(430)		(514)
Cash and cash equivalents		315,933	[1]	887,489	$ 295,402	[1]
Property and equipment, net	[1]	4,936			5,797
Operating lease right-of-use assets		1,300	[1]		998
TOTAL ASSETS	[1]	1,164,108			1,169,200
Total liabilities	[1]	348,507			344,475
Variable Interest Entity, Primary Beneficiary
Noncontrolling Interest [Line Items]
Revenue		1,464		1,093
Cost of revenue		491		300
Gross profit		973		793
Sales and marketing		2,084		1,387
Research and development		1,956		928
General and administrative		(1,444)		754
Total operating expenses		2,596		3,069
Loss from operations		(1,623)		(2,276)
Interest income		315		67
Total other income, net		269		674
Net loss before income taxes		(1,039)		(1,535)
Net loss		(1,039)		(1,535)
Net loss attributable to noncontrolling interest		(430)		$ (514)
Cash and cash equivalents		51,093			56,744
Property and equipment, net		1,039			1,135
Operating lease right-of-use assets		1,300			998
Other assets		3,575			3,950
TOTAL ASSETS		57,007			62,827
Total liabilities		$ 7,713			$ 8,871

[1] (1) As of April 30, 2023 and January 31, 2023, the condensed consolidated balance sheet includes assets of the consolidated variable interest entity, GitLab Information Technology (Hubei) Co., LTD (“JiHu”), of $57.0 million and $62.8 million, respectively, and liabilities of $7.7 million and $8.9 million, respectively. The assets of JiHu can be used only to settle obligations of JiHu and creditors of JiHu do not have recourse against the general credit of the Company. Refer to “Note 12. Joint Venture and Equity Method Investment” for further discussion.