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Equity Method Investments | 12 Months Ended
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Dec. 31, 2017
Equity Method Investments [Abstract] |
Equity Method Investments | Equity Method Investments Income from our equity method investments was $3.5 million, $5.4 million and $8.4 million in 2017, 2016 and 2015, respectively. Our proportionate share in their net assets at December 31, 2017 and 2016 was $40.7 million and $38.6 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.

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- Definition Equity Method Investments [Abstract] + References No definition available. + Details
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- Definition The entire disclosure for equity method investments and joint ventures. Equity method investments are investments that give the investor the ability to exercise significant influence over the operating and financial policies of an investee. Joint ventures are entities owned and operated by a small group of businesses as a separate and specific business or project for the mutual benefit of the members of the group. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -URI http://asc.fasb.org/topic&trid=2196965 + Details
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