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CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (Unaudited) (Parenthetical) $ in Thousands | 6 Months Ended
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Jun. 30, 2016 USD ($) $ / shares
Tax effect on fair value of interest rate swap agreements | $ | $ 2,916
Dividends declared per common share | $ / shares | $ 0.10
Accumulated Other Comprehensive Income (Loss) [Member] |
Tax effect on fair value of interest rate swap agreements | $ | $ 2,916
Retained Earnings [Member] |
Dividends declared per common share | $ / shares | $ 0.10

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