Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2012

Earnings Per Share [Abstract]

Computations of Basic and Diluted Earnings Per Share

The computations of basic and diluted EPS are set forth below:

	For The Years Ended December 31,
	2012		2011		2010
	(in thousands, except per share amounts)
Numerator for basic and diluted EPS — net income allocated to common stockholders	$	42,092	$	44,578	$	34,526
Denominator for basic EPS — weighted average number of shares	30,553		31,021		30,727
Add — dilutive effect of:
Weighted average number of incremental shares issuable from restricted stock units	8		14		49
Denominator for diluted EPS — weighted average number of shares and dilutive potential shares	30,561		31,035		30,776
Earnings per share:
Basic	$	1.38	$	1.44	$	1.12
Diluted	$	1.38	$	1.44	$	1.12