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Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]  
Schedule Of Noncancellable Minimum Commitments
The aggregate noncancellable minimum commitments at December 31, 2016 are: 
2017
$
5,958

2018
6,406

2019
6,715

2020
5,127

2021 and thereafter
26,821

 
$
51,027