Annual report [Section 13 and 15(d), not S-K Item 405]

Goodwill and Intangible Assets - Narrative (Details)

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Goodwill and Intangible Assets - Narrative (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]      
Accumulated goodwill impairment loss $ 336,640 $ 336,640  
Amortization expense 41,598 55,612 $ 64,358
Gross intangible assets written-off $ 70,242 $ 31,000