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Annual Maturities of Notes, Loans and Leases Payable (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Long-term debt, by Maturity:  
2014 $ 181,314
2015 590,424
2016 347,710
2017 168,771
2018 138,288
Thereafter $ 436,362