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Accounting Pronouncements Accounting Pronouncements (Tables)
 3 Months Ended
Mar. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]  
Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]
 
 
March 31, 2017
(in thousands)
 
Prior to Adoption
 
After Adoption
Undistributed gains of equity method investments
 
(665
)
 
(685
)
Distributions in excess of current year income of equity method investments
 
—

 
465

Decrease (increase) in other assets
 
15,998

 
(6,511
)
Net cash provided by operating activities
 
46,595

 
24,531

 
 
 
 
 
Distributions from other investments
 
6,428

 
5,983

Net cash used in investing activities
 
(32,459
)
 
(32,904
)