Earnings per Share (Tables)

12 Months Ended

Dec. 31, 2013

Earnings Per Share, Basic, Other Disclosures [Abstract]

Reconciliation of Number of Common Shares Used in Calculating Basic and Diluted EPS

The following table reconciles the number of shares used in calculating the basic and diluted earnings per share for the years ended December 31:

(Dollars in thousands, except per-share amounts)	2013		2012		2011
Net income	$	70,581	$	42,594	$	40,266
Basic weighted-average shares outstanding	40,502,878		40,333,333		40,159,141
Incremental shares due to:
Performance shares	133,766		134,079		146,157
Restricted stock units	69,076		70,217		32,455
Stock options	3,567		15,520		45,232
Diluted weighted-average shares outstanding	40,709,287		40,553,149		40,382,985
Basic net income per share	$	1.74	$	1.06	$	1.00
Diluted net income per share	$	1.73	$	1.05	$	1.00
Anti-dilutive shares excluded from the calculation:
Performance shares	3,441		—		77,767
Restricted stock units	—		315		1,500
Total anti-dilutive shares excluded from the calculation	3,441		315		79,267