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The Company and Significant Accounting Policies - Joint Venture (Details) - Facility in Liangjiang New Area of Chongqing (the 'Joint Venture') - USD ($) $ in Millions |  | 1 Months Ended |
--- | --- | --- | ---
Sep. 30, 2018 | Aug. 31, 2018 | Mar. 29, 2016
Consideration Transferred to Acquire Interest in Joint Venture |  | $ 25.0 |
Parent Company |  |  |
Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions | 54.40% | 54.40% |
Chongqing Funds |  |  |
Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions | 45.60% | 45.60% |
Corporate Joint Venture |  |  |
Initial capitalization of joint venture |  |  | $ 330.0

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