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Investments (Details) $ in Millions | Sep. 16, 2015 USD ($)
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Fair Value, Inputs, Level 1 | Kingstone Shanghai |
Schedule of Equity Method Investments [Line Items] |
Equity method investment, fair value | $ 2.7
Kingstone | Kingstone Holding Company |
Schedule of Equity Method Investments [Line Items] |
Ownership percentage | 15.00%
Kingstone | Shanghai Operating Entity |
Schedule of Equity Method Investments [Line Items] |
Ownership percentage | 10.00%

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