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Common Stock - Additional Information (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 12 Months Ended 0 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 09, 2013
Dec. 09, 2013
Common Stock [Member]
Dec. 31, 2013
Common Stock [Member]
Dec. 31, 2013
Additional Paid-in Capital [Member]
Stockholders' Equity Note [Abstract]              
Principal payments on revolving credit facility $ 264,430 $ 0 $ 0        
Class of Stock [Line Items]              
Issuance of common stock, shares         7,000,000 7,000,000  
Common stock, par value $ 0.01 $ 0.01     $ 0.01    
Shares issued, price per share       $ 44.94      
Proceeds from issuance of common stock, net of discounts and expenses $ 314,400         $ 70 $ 314,300