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Other Noninterest Expense (Notes)
 12 Months Ended
Dec. 31, 2017
Other noninterest expense [Abstract]  
Other Noninterest Expense
Other Noninterest Expense
A summary of other noninterest expense for 2017, 2016 and 2015 is as follows:
 
 
Year ended December 31,
(Dollars in thousands)
 
2017
 
2016
 
2015
Lending and other client related processing costs
 
$
23,768

 
$
19,867

 
$
15,944

Telephone
 
10,647

 
9,793

 
9,398

Data processing services
 
10,251

 
9,014

 
7,316

Dues and publications
 
3,263

 
2,828

 
2,476

Postage and supplies
 
2,797

 
2,851

 
3,154

Other
 
21,419

 
17,890

 
19,999

Total other noninterest expense
 
$
72,145

 
$
62,243

 
$
58,287