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Segment reporting (Tables)
12 Months Ended
Dec. 31, 2018
Segment Reporting [Abstract]  
Schedule of Segment Financial Information
The following tables provides segment financial information for the years ended December 31, 2018, 2017 and 2016 as follows:
Year Ended December 31, 2018
 
 
Banking

 
Mortgage

 
Consolidated

Net interest income
 
$
204,517

 
$
(449
)
 
$
204,068

Provision for loan loss
 
5,398

 
—

 
5,398

Mortgage banking income
 
25,460

 
83,874

 
109,334

Change in fair value of mortgage servicing rights(1)
 
—

 
(8,673
)
 
(8,673
)
Other noninterest income
 
29,981

 
—

 
29,981

Depreciation
 
3,827

 
507

 
4,334

Amortization of intangibles
 
3,185

 
—

 
3,185

Other noninterest mortgage banking expense
 
21,671

 
73,068

 
94,739

Other noninterest expense(2)
 
121,200

 
—

 
121,200

Income before income taxes
 
104,677

 
1,177

 
105,854

Income tax expense
 
 
 
 
 
25,618

Net income
 
 
 
 
 
80,236

Total assets
 
$
4,752,111

 
$
384,653

 
$
5,136,764

Goodwill
 
137,090

 
100

 
137,190

(1)
Included in mortgage banking income.
(2)
Included $1,594 in merger and conversion expenses.

Year Ended December 31, 2017
 
 
Banking

 
Mortgage

 
Consolidated

Net interest income
 
$
153,018

 
$
253

 
$
153,271

Provision for loan loss
 
(950
)
 
—

 
(950
)
Mortgage banking income
 
26,737

 
93,620

 
120,357

Change in fair value of mortgage servicing rights(1)
 
—

 
(3,424
)
 
(3,424
)
Other noninterest income
 
24,648

 
—

 
24,648

Depreciation and amortization
 
3,801

 
515

 
4,316

Amortization of intangibles
 
1,995

 
—

 
1,995

Loss on sale of mortgage servicing rights
 
—

 
249

 
249

Other noninterest mortgage banking expense
 
21,714

 
76,582

 
98,296

Other noninterest expense(2)
 
117,461

 
—

 
117,461

Income before income taxes
 
60,382

 
13,103

 
73,485

Income tax expense
 
 
 
 
 
21,087

Net income
 
 
 
 
 
52,398

Total assets
 
$
4,130,349

 
$
597,364

 
$
4,727,713

Goodwill
 
137,090

 
100

 
137,190

(1)
Included in mortgage banking income.
(2)
Included $19,034 in merger and conversion expenses.
Year Ended December 31, 2016
 
 
Banking

 
Mortgage

 
Consolidated

Net interest income
 
$
112,365

 
$
(1,415
)
 
$
110,950

Provision for loan loss
 
(1,479
)
 
—

 
(1,479
)
Mortgage banking income
 
25,542

 
92,209

 
117,751

Other noninterest income
 
26,934

 
—

 
26,934

Depreciation and amortization
 
3,506

 
489

 
3,995

Amortization of intangibles
 
2,132

 
—

 
2,132

Amortization and impairment of mortgage servicing rights
 
—

 
12,999

 
12,999

Loss on sale of mortgage servicing rights
 
—

 
4,447

 
4,447

Other noninterest mortgage banking expense
 
16,095

 
66,256

 
82,351

Other noninterest expense(1)
 
88,866

 
—

 
88,866

Income before income taxes
 
55,721

 
6,603

 
62,324

Income tax expense
 
 
 
 
 
21,733

Net income
 
 
 
 
 
40,591

Total assets
 
$
2,752,773

 
$
524,108

 
$
3,276,881

Goodwill
 
46,767

 
100

 
46,867

(1)
Included $3,268 in merger and conversion expenses.