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RESERVE FOR LOSS ON REPURCHASED LOANS (Tables)
 12 Months Ended
Dec. 31, 2017
Mortgage Banking Activities [Abstract]  
Summary of Activities in Reserve for Loss Reimbursements on Sold Loans
The following table presents a summary of activity in the reserve for losses on repurchased loans for the periods indicated:
 
 
Year Ended December 31,
($ in thousands)
 
2017
 
2016
 
2015
Balance at beginning of year
 
$
7,974

 
$
9,700

 
$
8,303

Initial provision for loan repurchases
 
1,622

 
3,942

 
2,026

Subsequent change in the reserve
 
(1,812
)
 
(3,352
)
 
2,326

Utilization of reserve for loan repurchases
 
(2,238
)
 
(2,316
)
 
(3,801
)
Other adjustments
 
760

 
—

 
846

Balance at end of year
 
$
6,306

 
$
7,974

 
$
9,700