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Joint Ventures and Other Equity Investments (Tables) | 12 Months Ended
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Dec. 31, 2017
Equity Method Investments and Joint Ventures [Abstract] |
Summary of combined balance of equity method investments included in other assets, net | The combined balance of equity method investments included in Other assets, net totaled (in millions):
| As of December 31,
| 2017 |  | 2016
Equity method investments | $ | 33.3 |  |  | $ | 30.7 |
Summary of cost of goods sold in the consolidated statements of operations | The amounts of purchases included in Cost of goods sold in the Consolidated Statements of Operations were as follows (in millions):
| For the Years Ended December 31,
| 2017 |  | 2016 |  | 2015
Purchases of compressors from joint venture | $ | 106.4 |  |  | $ | 97.7 |  |  | $ | 103.5 |

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- Definition Tabular disclosure of equity method investments including, but not limited to, name of each investee or group of investments, percentage ownership, difference between recorded amount of an investment and the value of the underlying equity in the net assets, and summarized financial information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571 + Details
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- Definition Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates. + References No definition available. + Details
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