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Note 17 - Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2015
Notes Tables  
Schedule of Rent Expense [Table Text Block]
 
 
2015
 
 
2014
 
 
2013
 
 
(In thousands)
Rent expense
                       
Space lease agreements
  $ 16,032     $     $  
Related party leases
    1,108              
Other operating leases
    4,619       339       390  
    $ 21,759     $ 339     $ 390  
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]
 
 
2016
 
 
2017
 
 
2018
 
 
2019
 
 
2020
 
 
Thereafter
 
 
(In thousands)
Minimum lease payments
                                               
Space lease agreements
  $ 35,033     $ 25,392     $ 18,860     $ 18,240     $ 3,372     $ 157  
Related party leases
    2,902       2,691       2,140       2,157       2,192       11,111  
Other operating leases
    9,667       8,151       7,149       6,412       6,259       53,161  
    $ 47,602     $ 36,234     $ 28,149     $ 26,809     $ 11,823     $ 64,429