Quarterly report pursuant to Section 13 or 15(d)

每股收益 (Schedule Of 每股收益 Reconciliation) (Details)

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每股收益 (Schedule Of 每股收益 Reconciliation) (Details) (USD $)
3个月结束 9月结束
9月. 30, 2012
9月. 30, 2011
9月. 30, 2012
9月. 30, 2011
每股收益[摘要]        
基本、净收入 $ 502,000 $ 29,009,000 $ 52,488,000 $ 77,448,000
摊薄后净收入 $ 502,000 $ 29,009,000 $ 52,488,000 $ 77,448,000
基本的, 55,692,664 50,407,240 55,658,507 47,549,672
Effect of dilutive securities, Stock options and restricted stock awards, Shares 599,128 498,722 516,074 458,696
稀释,股票 56,291,792 50,905,962 56,174,581 48,008,368
基本,每股净收入 $ 0.01 $ 0.58 $ 0.94 $ 1.63
摊薄后净收入 Per Share $ 0.01 $ 0.57 $ 0.93 $ 1.61