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Equity Method Investments	12 Months Ended
Equity Method Investments	Dec. 31, 2016
Equity Method Investments [Abstract]
Equity Method Investments	Equity Method Investments Income from our equity method investments was $5.4 million, $8.4 million and $16.2 million in 2016, 2015 and 2014, respectively. Our proportionate share in their net assets at December 31, 2016 and 2015 was $38.6 million and $45.3 million, respectively. Our equity method investments are not material to our results of operations or financial position; therefore, summarized financial information is not required to be presented.