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11. Investments in Unconsolidated Affiliates and Joint Ventures (Tables)
 3 Months Ended
Mar. 31, 2017
Equity Method Investments and Joint Ventures [Abstract]  
Schedule of Cost and Equity Method Investments [Table Text Block]
The following table summarizes our equity and cost method investments as of March 31, 2017 and December 31, 2016 (in thousands):
 
 
March 31,
2017
 
December 31,
2016
Equity method investments
 
$
226,196

 
$
232,337

Cost method investments
 
2,273

 
2,273

Investments in unconsolidated affiliates and joint ventures
 
$
228,469

 
$
234,610