Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2012

Earnings Per Share [Abstract]

Net income for purpose of determining basic EPS

As a result, in its calculation of basic EPS for the years ended December 31, 2012, 2011 and 2010, respectively, the Company has adjusted its net income for the effect of these participating securities as follows:

	2012			2011			2010
Net income	$	30,622		$	75,020		$	54,084
Income attributable to participating securities	(608		)	(1,552		)	(1,146		)
Net income available to common stockholders	$	30,014		$	73,468		$	52,938

Basic and diluted EPS calculation shares

Basic and diluted EPS were calculated using the following shares for the years ended December 31, 2012, 2011 and 2010:

	2012	2011	2010
Weighted-average shares for basic EPS	84,612,613	82,608,027	81,949,878
Plus incremental shares related to stock options and warrants	80,383	212,624	400,102
Weighted-average shares for diluted EPS	84,692,996	82,820,651	82,349,980

Outstanding shares not included in the computation of diluted EPS

	Year Ended December 31,
	2012		2011		2010
Number of stock options	N/A		3,408		174,649
Weighted-average exercise price	N/A		$	16.48	$	22.26
Weighted-average shares of non-vested restricted stock	3,500		7,000		—
Weighted-average expense per share	$	17.12	$	17.12	$	—
Weighted-average number of shares issuable upon conversion of debt	18,008,626		18,503,930		18,900,356
Weighted-average conversion price	$	14.35	$	14.13	$	14.16