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Commitments and Contingent Liabilities (Tables)
12 Months Ended
Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]  
Aggregate future minimum lease payments for operating and capital leases [Table Text Block]
The aggregate future minimum lease payments for operating and capital leases as of December 31, 2015 are as follows:

 
Operating
 
Capital
2016
$
62,892

 
$
2,830

2017
53,364

 
1,222

2018
43,888

 
436

2019
29,438

 
240

2020
21,386

 
182

2021 and thereafter
50,410

 
243

 
$
261,378

 
$
5,153