Annual report pursuant to Section 13 and 15(d)

Operating Leases (Details)

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Operating Leases (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Gross minimum future rentals  
2013 $ 352,149
2014 310,422
2015 261,123
2016 208,483
2017 168,585
Thereafter 373,283
Total $ 1,674,045