Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2016

Earnings Per Share [Abstract]

Reconciles Numerators and Denominators of Basic Earnings Per Share and Diluted Earnings Per Share

The following table reconciles the numerators and denominators of basic and diluted EPS:

	Years ended December 31,
(dollars in thousands, except share and per share data)	2016		2015		2014
Numerator for Earnings per Common Share—Basic:
Net income	$	71,392	$	67,081	$	57,910
Less: Income allocated to participating shares	225		280		165
Net Income Allocated to Common Shareholders	$	71,167	$	66,801	$	57,745
Numerator for Earnings per Common Share—Diluted:
Net income	$	71,392	$	67,081	$	57,910
Denominators:
Weighted Average Common Shares Outstanding—Basic	34,677,738		33,812,990		29,683,103
Add: Dilutive potential common shares	95,432		35,092		25,621
Denominator for Treasury Stock Method—Diluted	34,773,170		33,848,082		29,708,724
Weighted Average Common Shares Outstanding—Basic	34,677,738		33,812,990		29,683,103
Add: Average participating shares outstanding	109,755		141,558		84,918
Denominator for Two-Class Method—Diluted	34,787,493		33,954,548		29,768,021
Earnings per common share—basic	$	2.06	$	1.98	$	1.95
Earnings per common share—diluted	$	2.05	$	1.98	$	1.95
Warrants considered anti-dilutive excluded from dilutive potential common shares - exercise price $31.53 per share, expires January 2019	517,012		517,012		517,012
Stock options considered anti-dilutive excluded from dilutive potential common shares	—		—		419,538
Restricted stock considered anti-dilutive excluded from dilutive potential common shares	116,749		106,466		59,297