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Financial Instruments - Summary of Financial Instruments Carried at Fair Value (Detail) - USD ($)
$ in Thousands
Mar. 31, 2021
Mar. 31, 2020
Level 3 [Member]    
Disclosure Of Financial Instruments [Line Items]    
Other investments (equity securities-FVOCI) $ 5,409 $ 3,584
Total Assets 5,409 3,584
Other liabilities (related to business combination) 14,875 14,921
Total Liabilities 14,875 14,921
Fair value [Member]    
Disclosure Of Financial Instruments [Line Items]    
Other investments (equity securities-FVOCI) 5,409 3,584
Total Assets 5,409 3,584
Other liabilities (related to business combination) 14,875 14,921
Total Liabilities $ 14,875 $ 14,921