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Note 20 - Commitments and Contingencies (Details) - Minimum Operating Lease Payments
$ in Thousands
Dec. 31, 2015
USD ($)
Minimum Operating Lease Payments [Abstract]  
2016 $ 61,063
2017 47,622
2018 38,986
2019 32,015
2020 26,788
Thereafter 82,103
$ 288,577