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INVESTMENTS (Details) ¥ in Thousands, $ in Thousands, ¥ in Millions |  |  |  |  |  |  | 1 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Feb. 09, 2015 USD ($) | Feb. 09, 2015 CNY (¥) | Dec. 01, 2014 CNY (¥) | Oct. 10, 2014 USD ($) | Mar. 18, 2014 JPY (¥) | Feb. 11, 2014 CNY (¥) | Apr. 18, 2013 CNY (¥) | Jun. 30, 2015 USD ($) | Jun. 30, 2015 CNY (¥) | Dec. 31, 2015 USD ($) item | Dec. 31, 2015 CNY (¥) item | Dec. 31, 2014 USD ($) shares | Dec. 31, 2014 CNY (¥) shares | Dec. 31, 2013 USD ($) | Dec. 31, 2013 CNY (¥) | Dec. 31, 2015 CNY (¥) | May. 28, 2015 | Dec. 31, 2014 CNY (¥) | Mar. 18, 2014 CNY (¥)
Short-term investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed-rate time deposits |  |  |  |  |  |  |  |  |  | $ 4,513 |  |  |  |  |  | ¥ 29,234 |  | ¥ 428,330 |
Available-for-sale Securities, Current [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Original cost |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 74,222 |
Gross unrealized gains |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 11,069 |
Fair value |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 85,291 |
Interest income, net |  |  |  |  |  |  |  |  |  | 2,245 | ¥ 14,545 |  | ¥ 28,216 |  | ¥ 7,077 |  |  |  |
Gain recognized |  |  |  |  |  |  |  |  |  | (31) | (202) |  | 1,967 |  |  |  |  |  |
Long-term investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost method investments |  |  |  |  |  |  |  |  |  | 100,671 |  |  |  |  |  | 652,124 |  | 151,395 |
Equity method investments |  |  |  |  |  |  |  |  |  | 30,832 |  |  |  |  |  | 199,723 |  | 131,707 |
Available-for-sale equity securities |  |  |  |  |  |  |  |  |  | 7,158 |  |  |  |  |  | 46,373 |  | 55,740 |
Total |  |  |  |  |  |  |  |  |  | 138,661 |  |  |  |  |  | 898,220 |  | 338,842 |
Cost method investment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment loss of cost method investment |  |  |  |  |  |  |  |  |  | 931 | 6,031 |  | 0 |  |  |  |  |  |
Income from cost method investment |  |  |  |  |  |  |  |  |  | 108 | 700 |  | 0 |  |  |  |  |  |
Equity method investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments |  |  |  |  |  |  |  |  |  | 30,832 |  |  |  |  |  | 199,723 |  | ¥ 131,707 |
Consideration paid for equity method investments |  |  |  |  |  |  |  |  |  | 16,538 | 107,131 |  | 125,739 |  | 4,400 |  |  |  |
Deemed disposal gain of intangible assets |  |  |  |  |  |  |  |  |  | (547) | (3,539) |  |  |  | 3,600 |  |  |  |
Impairment loss |  |  |  |  |  |  |  |  |  | 433 | 2,806 |  | 472 |  | 0 |  |  |  |
Losses from equity method investments |  |  |  |  |  |  |  |  |  | $ 1,441 | ¥ 9,334 | $ 5,447 | 5,447 | $ 1,849 | 1,849 |  |  |  |
Number of companies disposed | item |  |  |  |  |  |  |  |  |  | 2 | 2 |  |  |  |  |  |  |  |
Income from equity method investments recorded in statement of comprehensive income |  |  |  |  |  |  |  |  |  | $ 2,103 | ¥ 13,626 |  |  |  |  |  |  |  |
Deemed disposal gain on equity method investments |  |  |  |  |  |  |  |  |  | 313 | 2,029 |  |  |  |  |  |  |  |
Long-term available-for-sale equity security |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available fors sale equity security, impairment loss |  |  |  |  |  |  |  |  |  | 3,997 | 25,891 |  | 0 |  | 0 |  |  |  |
NDP Media Corp |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost method investment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost method investment ownership percentage |  |  |  |  |  |  |  |  |  |  |  | 4.00% |  |  |  |  |  | 4.00% |
Other income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available-for-sale Securities, Current [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain recognized |  |  |  |  |  |  |  |  |  | (679) | (4,399) |  | 1,967 |  |  |  |  |  |
Debt Securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available-for-sale Securities, Current [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Original cost |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 67,309 |
Gross unrealized gains |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 11,069 |
Fair value |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 78,378 |
Equity Securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available-for-sale Securities, Current [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Original cost |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6,913 |
Fair value |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6,913 |
Current available for sale, impairment loss |  |  |  |  |  |  |  |  |  |  | ¥ 0 |  | 8,664 |  | 0 |  |  |  |
Eleven internet companies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost method investment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment in cost method investment |  |  |  |  |  |  |  |  |  | $ 11,238 |  |  |  |  |  | 72,800 |  |  |
Number of equity interests acquired | item |  |  |  |  |  |  |  |  |  | 11 | 11 |  |  |  |  |  |  |  |
Third party mobile app developer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost method investment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment in cost method investment |  |  |  |  |  |  |  |  |  | $ 28,000 |  |  |  |  |  | ¥ 171,531 |  |  |
Cost method investment ownership percentage |  |  |  |  |  |  |  |  |  | 2.80% |  |  |  |  |  | 2.80% |  |  |
NDP Media Corp |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost method investment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment in cost method investment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 120,000 |
Beijing Security System Technology |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity interest ownership percentage |  |  |  |  |  |  | 40.00% |  |  | 32.00% |  |  |  |  |  | 32.00% |  |  |
Consideration paid for equity method investments |  |  |  |  |  |  | ¥ 3,600 |  |  |  |  |  |  |  |  |  |  |  |
Fair value of intangible assets contributed |  |  |  |  |  |  | 6,000 |  |  |  |  |  |  |  |  |  |  |  |
Carry value of intangible assets contributed |  |  |  |  |  |  | ¥ 0 |  |  |  |  |  |  |  |  |  |  |  |
Deemed disposal gain of intangible assets |  |  |  |  |  |  |  |  |  | $ 2,130 | ¥ 13,798 |  |  |  | 3,600 |  |  |  |
Capital contribution received |  |  |  |  |  |  |  | $ 6,870 | ¥ 44,500 |  |  |  |  |  |  |  |  |  |
Kingsoft Japan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity interest ownership percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20.00%
Consideration paid for equity method investments |  |  |  | $ 9,967 | ¥ 614 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of investee ownership on the books of its reporting entity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 6,391
Excess of the purchase consideration over the carrying amount of investee ownership on the books of its reporting entity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 51,782 | ¥ 30,775
Additional ownership interest percentage acquired |  |  |  | 21.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum exposure to loss of equity method investment |  |  |  |  |  |  |  |  |  | 11,580 | 75,015 |  |  |  |  |  |  |  |
Dianjing |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity interest ownership percentage | 51.73% | 51.73% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration paid for equity method investments | $ 6,947 | ¥ 45,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Eight internet companies and three limited partnerships |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration paid for equity method investments |  |  |  |  |  |  |  |  |  | $ 10,083 | ¥ 65,317 |  |  |  |  |  |  |  |
Eight internet companies and three limited partnerships | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity interest ownership percentage |  |  |  |  |  |  |  |  |  | 5.00% |  |  |  |  |  | 5.00% |  |  |
Eight internet companies and three limited partnerships | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity interest ownership percentage |  |  |  |  |  |  |  |  |  | 50.00% |  |  |  |  |  | 50.00% |  |  |
Eight internet companies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of investments | item |  |  |  |  |  |  |  |  |  | 8 | 8 |  |  |  |  |  |  |  |
Three limited partnerships |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of investments | item |  |  |  |  |  |  |  |  |  | 3 | 3 |  |  |  |  |  |  |  |
Internet company and a limited partnership |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration paid for equity method investments |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 3,000 |  |  |  |  |  |
One internet company |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity interest ownership percentage |  |  |  |  |  |  |  |  |  |  |  | 34.00% |  |  |  |  |  | 34.00% |
A limited partnership |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity interest ownership percentage |  |  |  |  |  |  |  |  |  |  |  | 6.70% |  |  |  |  |  | 6.70% |
Moxiu Technology |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest acquired (as a percent) |  |  |  |  |  | 28.30% |  |  |  |  |  |  |  |  |  |  |  |  |
Equity interest ownership percentage |  |  | 50.50% |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.60% |  |
Consideration paid for equity method investments |  |  | ¥ 30,000 |  |  | ¥ 20,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Value of promotional resources exchanged for additional interest |  |  |  |  |  | ¥ 5,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Additional ownership interest percentage acquired |  |  | 22.20% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Voting interest required for significant financial and operating decisions (as a percent) |  |  |  |  |  | 66.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Third party mobile advertising software provider |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost method investment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment in cost method investment |  |  |  |  |  |  |  |  |  | $ 20,000 |  |  |  |  |  | ¥ 122,896 |  |  |
Cost method investment ownership percentage |  |  |  |  |  |  |  |  |  | 9.60% |  |  |  |  |  | 9.60% |  |  |
Third party e-commerce company |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost method investment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment in cost method investment |  |  |  |  |  |  |  |  |  | $ 17,522 |  |  |  |  |  | ¥ 107,452 |  |  |
Cost method investment ownership percentage |  |  |  |  |  |  |  |  |  | 35.00% |  |  |  |  |  | 35.00% |  |  |
Series A Preferred Stock | NDP Media Corp |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost method investment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment in cost method investment | $ |  |  |  |  |  |  |  |  |  |  |  | $ 5,000 |  |  |  |  |  |  |
Cost method investment shares purchased (in shares) | shares |  |  |  |  |  |  |  |  |  |  |  | 500,000 | 500,000 |  |  |  |  |  |
Short-term investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available-for-sale Securities, Current [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income, net |  |  |  |  |  |  |  |  |  | $ 1,525 | ¥ 9,877 |  | ¥ 15,901 |  | 2,479 |  |  |  |
Long-term investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term available-for-sale equity security |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Original cost |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 24,555 |  | ¥ 48,952 |
Gross unrealized gains |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 21,818 |  | 6,788 |
Fair value |  |  |  |  |  |  |  |  |  | 7,158 |  | $ 8,605 |  |  |  | 46,373 |  | ¥ 55,740 |
Cheetah |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available-for-sale Securities, Current [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income, net |  |  |  |  |  |  |  |  |  | 1,107 | 7,169 |  | ¥ 20,908 |  | ¥ 2,494 |  |  |  |
Long-term investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments |  |  |  |  |  |  |  |  |  | 896 |  |  |  |  |  | 5,802 |  |  |
Equity method investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments |  |  |  |  |  |  |  |  |  | 896 |  |  |  |  |  | ¥ 5,802 |  |  |
Losses from equity method investments |  |  |  |  |  |  |  |  |  | $ 6 | ¥ 42 |  |  |  |  |  |  |  |

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- Definition This item represents the income (loss) from equity method investments recognized in Statement of comprehensive income (loss). + References No definition available. + Details
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- Definition The amount of other than temporary impairment losses on investments in current debt and equity securities categorized as Available-for-sale which have been recognized in earnings during the period. Such impairment losses consist of other than temporary impairments (OTTI) on equity securities, credit losses on investments in debt securities, and when the entity intends to sell an impaired debt security or it is more likely than not that the entity will be required to sell the impaired debt security before recovery of its amortized cost basis. + References No definition available. + Details
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