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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) (USD $)
0 Months Ended 3 Months Ended
Feb. 12, 2015
Mar. 31, 2015
CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY    
Dividends accrued, per share (in dollars per share) $ 0.43us-gaap_CommonStockDividendsPerShareDeclared $ 0.43us-gaap_CommonStockDividendsPerShareDeclared