Principal Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2013

Accounting Policies [Abstract]

Calculation Of Diluted Earnings Per Share

(Dollars in thousands except per share data)	Three Months Ended March 31,
	2013		2012
Numerator:
Net income	$	14,005	$	25,646
Denominator:
Weighted-average common shares outstanding	56,096,637		55,703,722
Stock options and nonvested stock	635,335		554,061
	56,731,972		56,257,783
Diluted Earnings per Share:	$	0.25	$	0.46
Anti-dilutive securities excluded from the
computation of diluted EPS	1,141,137		1,932,324