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UNAUDITED INTERIM FINANCIAL INFORMATION (Tables)
 12 Months Ended
Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]  
Schedule of unaudited interim financial information
 
 
Three months ended,
($ in thousands, except per share amounts)
 
March 31
 
June 30
 
September 30
 
December 31
2016
 
 
 
 
 
 
 
 
Total revenues
 
$
153,871

 
$
160,336

 
$
162,378

 
$
168,398

 
 
 
 
 
 
 
 
 
Income before income tax expense
 
$
20,877

 
$
8,087

 
$
5,047

 
$
29,196

Income tax expense
 
6,223

 
1,959

 
918

 
7,904

Net income
 
$
14,654

 
$
6,128

 
$
4,129

 
$
21,292

 
 
 
 
 
 
 
 
 
Net income per common share - basic and diluted1
 
$
0.70

 
$
0.29

 
$
0.20

 
$
1.01


 
 
Three months ended,
($ in thousands, except per share amounts)
 
March 31
 
June 30
 
September 30
 
December 31
2015
 
 
 
 
 
 
 
 
Total revenues
 
$
152,335

 
$
158,808

 
$
165,104

 
$
147,479

 
 
 
 
 
 
 
 
 
Income before income tax expense
 
$
29,937

 
$
11,875

 
$
15,921

 
$
13,923

Income tax expense
 
9,607

 
3,127

 
4,732

 
4,028

Net income
 
$
20,330

 
$
8,748

 
$
11,189

 
$
9,895

 
 
 
 
 
 
 
 
 
Net income per common share - basic and diluted1
 
$
1.00

 
$
0.42

 
$
0.54

 
$
0.48


1 Since the weighted-average number of shares outstanding for the quarters are calculated independently of the weighted-average number of shares outstanding for the year, quarterly net income per share may not total to annual net income per share.