XML 122 R107.htm IDEA: XBRL DOCUMENT v3.20.4
Commitments and Contingencies - Guarantees and Indemnifications (Detail)
$ in Thousands
Dec. 31, 2020
USD ($)
Loss Contingencies [Line Items]  
Expires Within One Year $ 171,709
Expires After One Year 51,762
Total Outstanding Amount 223,471
Maximum Potential Amount of Future Payments 375,876
Financial stand-by letters of credit  
Loss Contingencies [Line Items]  
Expires Within One Year 164,498
Expires After One Year 50,724
Total Outstanding Amount 215,222
Maximum Potential Amount of Future Payments 354,225
Performance stand-by letters of credit  
Loss Contingencies [Line Items]  
Expires Within One Year 3,351
Total Outstanding Amount 3,351
Maximum Potential Amount of Future Payments 3,351
Commercial Letters of Credit  
Loss Contingencies [Line Items]  
Expires Within One Year 3,860
Expires After One Year 1,038
Total Outstanding Amount 4,898
Maximum Potential Amount of Future Payments $ 18,300