Summary of Business and Significant Accounting Policies - Accounts Receivable (Details) - USD ($) $ in Thousands	Jan. 31, 2026	Jan. 31, 2025	Jan. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accounts receivable, gross	$ 515,687	$ 517,306
Less: Allowance for credit losses	(14,373)	(17,262)	$ (25,916)
Less: Other reserves	(3,975)	(4,816)
Accounts receivable, net	$ 497,339	$ 495,228