Commitments and Contingent Liabilities - Guarantor Obligations (Details) $ in Thousands	Mar. 31, 2023 USD ($)
Letters of Credit:
Loss Contingencies [Line Items]
Total Amounts Committed	$ 186,098
Less Than 1 Year	178,848
1-3 Years	7,250
3-5 Years	0
Beyond 5 Years	0
Letters of Credit: | Employee-Related
Loss Contingencies [Line Items]
Total Amounts Committed	50,366
Less Than 1 Year	43,116
1-3 Years	7,250
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	135,334
Less Than 1 Year	135,334
1-3 Years	0
3-5 Years	0
Beyond 5 Years	0
Surety Bonds:
Loss Contingencies [Line Items]
Total Amounts Committed	605,664
Less Than 1 Year	555,499
1-3 Years	50,165
3-5 Years	0
Beyond 5 Years	0
Surety Bonds: | Employee-Related
Loss Contingencies [Line Items]
Total Amounts Committed	81,010
Less Than 1 Year	63,489
1-3 Years	17,521
3-5 Years	0
Beyond 5 Years	0
Surety Bonds: | Environmental
Loss Contingencies [Line Items]
Total Amounts Committed	520,953
Less Than 1 Year	489,140
1-3 Years	31,813
3-5 Years	0
Beyond 5 Years	0
Surety Bonds: | Other
Loss Contingencies [Line Items]
Total Amounts Committed	3,701
Less Than 1 Year	2,870
1-3 Years	831
3-5 Years	0
Beyond 5 Years	$ 0