Quarterly report pursuant to Section 13 or 15(d)

Non-Controlling Interest Non-Controlling Interest (Narrative) (Details)

v2.4.0.8
Non-Controlling Interest Non-Controlling Interest (Narrative) (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Noncontrolling Interest [Line Items]        
Cash dividends per share $ 0.22 $ 0.22 $ 0.44 $ 0.44
Noncontrolling Interest, Ownership Percentage by Parent 60.00%   60.00%  
Noncontrolling Interest [Member]
       
Noncontrolling Interest [Line Items]        
Payments to Acquire Interest in Joint Venture     $ 8,000  
Parent [Member]
       
Noncontrolling Interest [Line Items]        
Cash dividends per share     $ 0.44  
Payments to Acquire Interest in Joint Venture     $ 12,000