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Description of Business - Additional Information (Details) $ / shares in Units, $ in Thousands |  |  | 3 Months Ended | 6 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Feb. 06, 2017 $ / shares shares | Jan. 31, 2017 | Sep. 30, 2017 segment shares | Mar. 31, 2017 USD ($) | Jun. 30, 2017 segment | Sep. 30, 2017 segment shares | Aug. 11, 2017 $ / shares | Dec. 31, 2016 shares
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |
Common stock, shares authorized (in shares) |  |  | 0 |  |  | 0 |  | 175,000,000
Reverse stock split |  | 0.25 |  |  |  |  |  |
Number of operating segments (segment) | segment |  |  | 6 |  | 3 | 6 |  |
Class A Common Stock |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |
Common stock, shares authorized (in shares) |  |  | 700,000,000 |  |  | 700,000,000 |  |
IPO | Class A Common Stock |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |
Common stock, shares authorized (in shares) | 700,000,000 |  |  |  |  |  |  |
Shares sold in initial public offering (in shares) | 35,000,000 |  |  |  |  |  |  |
Sale of common stock in IPO (in dollars per share) | $ / shares | $ 14.00 |  |  |  |  |  | $ 14.00 |
Net proceeds from initial public offering | $ |  |  |  | $ 456,359 |  |  |  |

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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References No definition available. + Details
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- Definition Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB TOPIC 4.C) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187143-122770 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Stock Split -URI http://asc.fasb.org/extlink&oid=6525746 + Details
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