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Earnings Per Share (Details)
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Earnings Per Share [Abstract]    
Weighted average common shares outstanding for basic calculation 136,981,193us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 135,729,809us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Add: Effect of stock options and restricted stock 0us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements 0us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
Weighted average common shares outstanding for diluted calculation 136,981,193us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 135,729,809us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Shares which exclude consideration of stock options in calculation of diluted shares outstanding 1,980,607us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 1,131,088us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount