Employee Benefit Plans - Schedule of Fair Value of the Defined Benefit Pension Plan Assets by Major Categories and by Levels within the Fair Value Hierarchy (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2024
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	$ 233,831	$ 201,459	$ 170,640
Level 1
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	200,330	185,158
Level 2
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	33,501	16,301
Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	26,588	21,202
Cash and cash equivalents \| Level 1
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	26,588	21,202
Cash and cash equivalents \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	0	0
Equity securities
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	80,223	60,867
Equity securities \| Level 1
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	80,223	60,867
Equity securities \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	0	0
Debt securities
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	52,819	50,178
Debt securities \| Level 1
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	52,819	50,178
Debt securities \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	0	0
Real estate funds
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	51,422	51,739
Real estate funds \| Level 1
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	31,979	44,906
Real estate funds \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	19,443	6,833
Hedge funds
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	13,556	8,994
Hedge funds \| Level 1
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	0	0
Hedge funds \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	13,556	8,994
Other
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	9,223	8,479
Other \| Level 1
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	8,721	8,005
Other \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Total fair value of plan assets	$ 502	$ 474