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Commitments and Contingencies (Tables)
9 Months Ended
Sep. 30, 2019
Commitments and Contingencies Disclosure [Abstract]  
Schedule of the Total Lending Related Commitments Outstanding
Total lending related commitments outstanding at September 30, 2019 were as follows (in thousands):
Commitments to fund loans
$
713,537

Commitments to purchase loans
710,704

Unfunded commitments under lines of credit
2,795,181

Commercial and standby letters of credit
86,356

 
$
4,305,778