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Operating Leases, as Lessee (Future Non-cancellable Minimum Rental Payments Required Under Operating Leases and/or Licenses) (Details)
$ in Thousands
Dec. 31, 2015
USD ($)
Leases [Abstract]  
2016 $ 12,211
2017 10,570
2018 9,886
2019 8,327
2020 8,062
Thereafter 79,469
Total $ 128,525