Commitments and Contingent Liabilities - Schedule of Guarantor Obligations (Details) $ in Thousands	Mar. 31, 2026 USD ($)
Letters of Credit:
Loss Contingencies [Line Items]
Total Amounts Committed	$ 268,633
Less Than 1 Year	258,761
1-3 Years	9,872
3-5 Years	0
Beyond 5 Years	0
Letters of Credit: | Employee-Related
Loss Contingencies [Line Items]
Total Amounts Committed	121,969
Less Than 1 Year	112,139
1-3 Years	9,830
3-5 Years	0
Beyond 5 Years	0
Letters of Credit: | Environmental
Loss Contingencies [Line Items]
Total Amounts Committed	398
Less Than 1 Year	398
1-3 Years	0
3-5 Years	0
Beyond 5 Years	0
Letters of Credit: | Other
Loss Contingencies [Line Items]
Total Amounts Committed	146,266
Less Than 1 Year	146,224
1-3 Years	42
3-5 Years	0
Beyond 5 Years	0
Surety Bonds:
Loss Contingencies [Line Items]
Total Amounts Committed	1,063,593
Less Than 1 Year	910,332
1-3 Years	153,261
3-5 Years	0
Beyond 5 Years	0
Surety Bonds: | Employee-Related
Loss Contingencies [Line Items]
Total Amounts Committed	115,850
Less Than 1 Year	93,354
1-3 Years	22,496
3-5 Years	0
Beyond 5 Years	0
Surety Bonds: | Environmental
Loss Contingencies [Line Items]
Total Amounts Committed	859,370
Less Than 1 Year	735,610
1-3 Years	123,760
3-5 Years	0
Beyond 5 Years	0
Surety Bonds: | Other
Loss Contingencies [Line Items]
Total Amounts Committed	88,373
Less Than 1 Year	81,368
1-3 Years	7,005
3-5 Years	0
Beyond 5 Years	$ 0