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Condensed Consolidated Statements of Parent Company Equity (Unaudited) - 6 months ended Jun. 30, 2015 - USD ($)
shares in Thousands, $ in Thousands
Common Stock [Member]
Additional Parent Company Investment [Member]
Retained Earnings [Member]
Total
Balance (in shares) at Dec. 31, 2014 5,843,313      
Balance at Dec. 31, 2014 $ 58 $ (472,689) $ 1,325,919 $ 853,288
Net income     43,544 43,544
Dividends paid to Parent     (450,000) (450,000)
Net transfers to Parent   (32,795)   (32,795)
Balance (in shares) at Jun. 30, 2015 5,843,313      
Balance at Jun. 30, 2015 $ 58 $ (505,484) $ 919,463 $ 414,037