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Convertible Loans Due from a Related Party (Details) $ / shares in Units, ¥ in Thousands, $ in Thousands | 1 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2016 CNY (¥) | Dec. 31, 2016 USD ($) $ / shares | Aug. 31, 2016 CNY (¥) | Aug. 31, 2016 USD ($) | Apr. 30, 2016 USD ($) | Jan. 31, 2016 USD ($) | Dec. 31, 2016 USD ($) | Dec. 31, 2015 CNY (¥)
Schedule of Convertible Loans Due from One Related Party [Line Items] |  |  |  |  |  |  |  |
Convertible loans due from a related party | ¥ 104,429 |  |  |  |  |  | $ 15,041 | ¥ 0
Particle [Member] | Loans Granted to Related Party in January and April 2016 [Member] | Series D1 convertible redeemable preferred shares [Member] |  |  |  |  |  |  |  |
Schedule of Convertible Loans Due from One Related Party [Line Items] |  |  |  |  |  |  |  |
Aggregate amount of converting convertible loans due from related party | ¥ 143,800 | $ 20,700 |  |  |  |  |  |
Conversion price per share from Loans into Series D1 preferred shares | $ / shares |  | $ 0.876847 |  |  |  |  |  |
Particle [Member] | Loan Granted to Related Party in January 2016 [Member] |  |  |  |  |  |  |  |
Schedule of Convertible Loans Due from One Related Party [Line Items] |  |  |  |  |  |  |  |
Maturity of short-term unsecured loans |  |  |  |  |  | 12 months |  |
Principal amount of loans granted to Particle | $ |  |  |  |  |  | $ 10,000 |  |
Interest rate of short-term unsecured loans |  |  |  |  |  | 4.35% |  |
Particle [Member] | Loan Granted to Related Party in April 2016 [Member] |  |  |  |  |  |  |  |
Schedule of Convertible Loans Due from One Related Party [Line Items] |  |  |  |  |  |  |  |
Maturity of short-term unsecured loans |  |  |  |  | 12 months |  |  |
Principal amount of loans granted to Particle | $ |  |  |  |  | $ 10,000 |  |  |
Interest rate of short-term unsecured loans |  |  |  |  | 4.35% |  |  |
Particle [Member] | Loan Granted to Related Party in August 2016 [Member] |  |  |  |  |  |  |  |
Schedule of Convertible Loans Due from One Related Party [Line Items] |  |  |  |  |  |  |  |
Maturity of short-term unsecured loans | 12 months | 12 months | 6 months | 6 months |  |  |  |
Principal amount of loans granted to Particle |  |  | ¥ 98,100 | $ 14,800 |  |  |  |
Interest rate of short-term unsecured loans |  |  | 4.35% | 4.35% |  |  |  |
Convertible loans due from a related party | ¥ 104,400 |  |  |  |  |  | $ 15,000 |
Particle [Member] | Loan Granted to Related Party in August 2016 [Member] | Series D1 convertible redeemable preferred shares [Member] |  |  |  |  |  |  |  |
Schedule of Convertible Loans Due from One Related Party [Line Items] |  |  |  |  |  |  |  |
Conversion price per share from Loans into Series D1 preferred shares | $ / shares |  | $ 1.071803 |  |  |  |  |  |

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- Definition Amount of short-term unsecured loans granted + References No definition available. + Details
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- Definition Conversion price per share from Loans into Series D preferred shares. + References No definition available. + Details
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- Definition Convertible loans converted to acquire equity interests of investee. + References No definition available. + Details
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- Definition Short-term loans advanced due from a related party of which the Group may at its option convert all or a portion into preferred shares. + References No definition available. + Details
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- Definition Period before short-term loans provided to a related party mature, in 'PnYnMnDTnHnMnS' format. + References No definition available. + Details
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