Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2015

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)	2015		2014		2013
Numerator for Earnings per Common Share—Basic:
Net income	$	67,081	$	57,910	$	50,539
Less: Income allocated to participating shares	280		165		147
Net Income Allocated to Common Shareholders	$	66,801	$	57,745	$	50,392
Numerator for Earnings per Common Share—Diluted:
Net income	$	67,081	$	57,910	$	50,539
Denominators:
Weighted Average Common Shares Outstanding—Basic	33,812,990		29,683,103		29,647,231
Add: Dilutive potential common shares	35,092		25,621		35,322
Denominator for Treasury Stock Method—Diluted	33,848,082		29,708,724		29,682,553
Weighted Average Common Shares Outstanding—Basic	33,812,990		29,683,103		29,647,231
Add: Average participating shares outstanding	141,558		84,918		86,490
Denominator for Two-Class Method—Diluted	33,954,548		29,768,021		29,733,721
Earnings per common share—basic	$	1.98	$	1.95	$	1.70
Earnings per common share—diluted	$	1.98	$	1.95	$	1.70
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		619,418
Restricted stock considered anti-dilutive excluded from dilutive potential common shares	106,466		59,297		51,169