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Long-Term Investments (Tables) | 12 Months Ended
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Dec. 31, 2017
Investments Schedule [Abstract] |
Long Term Investments | The Company’s long-term investments comprise of the following:
|  | December 31, |
|  | 2016 |  |  | 2017 |
|  | RMB |  |  | RMB |  |  | US$ |
Cost method investments |  |  | 56,087 |  |  |  | 57,567 |  |  |  | 8,848 |
Equity method investments |  |  | 234,863 |  |  |  | 450,822 |  |  |  | 69,290 |
Available-for-sale investments |  |  | 7,921 |  |  |  | 2,537 |  |  |  | 390 |
|  |  | 298,871 |  |  |  | 510,926 |  |  |  | 78,528 |
Investment in Equity Investees | Investment in equity investees
|  | As of December 31, 2015 |  |  | Increase during the year ended December 31, 2016 |  |  | As of December 31, 2016 |
|  | Cost of investments |  |  | Share equity gain (loss) |  |  | Investments in equity investee |  |  | Cost of investments |  |  | Share equity gain (loss) |  |  | Cost of investments |  |  | Share equity gain (loss) |  |  | Investments in equity investee |
|  | RMB |  |  | RMB |  |  | RMB |  |  | RMB |  |  | RMB |  |  | RMB |  |  | RMB |  |  | RMB |
Yizhuang Fund |  |  | 101,000 |  |  |  | 49,211 |  |  |  | 150,211 |  |  |  | — |  |  |  | 35,937 |  |  |  | 101,000 |  |  |  | 85,148 |  |  |  | 186,148 |
Unis Tech |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 49,000 |  |  |  | (285 | ) |  |  | 49,000 |  |  |  | (285 | ) |  |  | 48,715 |
|  |  | 101,000 |  |  |  | 49,211 |  |  |  | 150,211 |  |  |  | 49,000 |  |  |  | 35,652 |  |  |  | 150,000 |  |  |  | 84,863 |  |  |  | 234,863 |
|  | As of December 31, 2016 |  |  | Increase/(decrease) during the year ended December 31, 2017 |  |  | As of December 31, 2017 |
|  | Cost of investments |  |  | Share equity gain (loss) |  |  | Investments in equity investee |  |  | Cost of investments |  |  | Share equity gain (loss) |  |  | Cost of investments |  |  | Share equity gain (loss) |  |  | Investments in equity investee |  |  | Investments in equity investee |
|  | RMB |  |  | RMB |  |  | RMB |  |  | RMB |  |  | RMB |  |  | RMB |  |  | RMB |  |  | RMB |  |  | US$ |
Yizhuang Fund |  |  | 101,000 |  |  |  | 85,148 |  |  |  | 186,148 |  |  |  | — |  |  |  | 90,888 |  |  |  | 101,000 |  |  |  | 176,036 |  |  |  | 277,036 |  |  |  | 42,580 |
Unis Tech |  |  | 49,000 |  |  |  | (285 | ) |  |  | 48,715 |  |  |  | — |  |  |  | (12,676 | ) |  |  | 49,000 |  |  |  | (12,961 | ) |  |  | 36,039 |  |  |  | 5,539 |
Shihua DC Holdings |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 147,176 |  |  |  | (9,429 | ) |  |  | 147,176 |  |  |  | (9,429 | ) |  |  | 137,747 |  |  |  | 21,171 |
WiFire Entities |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 15,000 |  |  |  | (15,000 | ) |  |  | 15,000 |  |  |  | (15,000 | ) |  |  | — |  |  |  | — |
|  |  | 150,000 |  |  |  | 84,863 |  |  |  | 234,863 |  |  |  | 162,176 |  |  |  | 53,783 |  |  |  | 312,176 |  |  |  | 138,646 |  |  |  | 450,822 |  |  |  | 69,290 |

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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 data and information required in the supplementary schedule applicable to management investment companies listing holdings of unaffiliated investments. + References No definition available. + Details
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