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Contingencies (Tables)
 6 Months Ended
Jun. 30, 2022
Commitments and Contingencies Disclosure [Abstract]  
Summary of Changes in ACL on Off-balance Sheet Credit Exposures

Changes in the ACL on off-balance sheet credit exposures were as follows for the periods presented ($ in thousands):

 

 

 

Three Months Ended June 30,

 

 

Six Months Ended June 30,

 

 

 

2022

 

 

2021

 

 

2022

 

 

2021

 

Balance at beginning of period

 

$

34,517

 

 

$

29,205

 

 

$

35,623

 

 

$

38,572

 

PCL, off-balance sheet credit exposures

 

 

(1,568

)

 

 

4,528

 

 

 

(2,674

)

 

 

(4,839

)

Balance at end of period

 

$

32,949

 

 

$

33,733

 

 

$

32,949

 

 

$

33,733