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Fair Value Measurements | 12 Months Ended
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Dec. 31, 2016
Fair Value Measurements [Abstract] |
Fair Value Measurements | 19. Fair Value Measurements The following table sets forth the financial instruments, measured at fair value, by level within the fair value hierarchy (in thousands):
|  |  |  | Fair Value Measurements at Reporting Date Using |
|  | Carrying Value on Balance Sheets |  | Quote Prices in Active Market for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3) |
|  | RMB |  | RMB |  | RMB |  | RMB |
As of December 31, 2015: |  |  |  |  |  |  |  |  |
Assets: |  |  |  |  |  |  |  |  |
Term deposits and short term investments |  | 769,681 |  | 106,907 |  | 662,774 |  | — |
Restricted cash |  | 125,000 |  | 125,000 |  | — |  | — |
Available-for-sale investments |  | 513,994 |  | — |  | — |  | 513,994 |
As of December 31, 2016: |  |  |  |  |  |  |  |  |
Assets: |  |  |  |  |  |  |  |  |
Term deposits and short term investments |  | 781,298 |  | 22,198 |  | 759,100 |  | — |
Restricted cash |  | 354,602 |  | 354,602 |  | — |  | — |
Available-for-sale investments |  | 939,432 |  | — |  | — |  | 939,432 |
The following table sets forth the reconciliation of the fair value measurements of available-for-sale investments using significant unobservable inputs (level 3) from January 1, 2015 to December 31, 2016 (in thousands):
|  | Fair Value Measurements Using Significant Unobservable Inputs |
|  | (Level 3) |
|  | RMB |
Beginning balance as of January 1, 2015 |  | 77,093 |
Additional investments |  | 352,008 |
Additional investments obtained from conversion of ordinary shares |  | 40,538 |
Change in fair value |  | 15,869 |
Currency translation adjustment |  | 28,486 |
Ending balance as of December 31, 2015 |  | 513,994 |
Additional investments obtained from conversion of convertible loans |  | 143,820 |
Change in fair value |  | 247,336 |
Currency translation adjustment |  | 34,282 |
Ending balance as of December 31, 2016 |  | 939,432 |
Restricted cash The Group’s restricted cash represents guarantee of banking facility which is restricted to withdrawal or usage. The fair values of restricted cash are determined based on the pervasive interest rate in the market. The Group classifies the valuation techniques that use the pervasive interest rates input as Level 1 of fair value measurement. Term deposits The fair values of term deposits placed with banks with original maturities of more than three months and up to one year are determined based on the pervasive interest rates in market as stated in the contracts with the banks. The Group classifies the valuation techniques that use the interest rates input as Level 1 of fair value measurement. Short term investments Short term investments represent interest-bearing deposit placed with financial institutions which are restricted to withdrawal and use. The investments are issued by commercial bank in the PRC with a variable interest rate indexed to performance of underlying assets. To estimate fair value, the Group refers to the quoted rate of return provided by banks at the end of each period using the discounted cash flow method. The Group classifies the valuation techniques that use these inputs as Level 2 of fair value measurements. Available-for-sale investment s Available-for-sale investment represents the investments of convertible redeemable preferred shares in Particle. In accordance with ASC 820, the Group measures available-for-sale investments at fair value on a recurring basis. The fair values of the Group’s available-for-sale investments are determined based on the discounted cash flow model using the discount curve of market interest rates. The Group classifies the valuation techniques that use unobservable inputs as Level 3 of fair value measurements. The key inputs used in available-for-sale investments valuation as of December 31, 2015 and 2016 were as follow:
|  | As of December 31, |
|  | 2015 |  | 2016 |
Discount rate |  | 25.5 | % | 23.0 | %
Lack of marketability discount (“DLOM”) |  | 26.0 | % | 25.0 | %
Volatility |  | 50.3 | % | 47.0 | %
Revenue growth rate |  | 5.0%-503.0 | % | 10.0%-349.0 | %
Terminal growth rate |  | 3.0 | % | 3.0 | %
The following are other financial instruments not measured at fair value in the balance sheets but for which the fair value is estimated for disclosure purposes. Short-term receivables and payables Accounts receivable, prepayment and other current assets, and amounts due from related parties are financial assets with carrying values that approximate fair value due to their short term nature. Accounts payable, amounts due to related parties, advances from customers, salary and welfare payable, and accrued expenses and other current liabilities are financial liabilities with carrying values that approximate fair value due to their short term nature. Convertible loans due from a related party Convertible loans due from a related party represent short-term loans advanced to a related party of which the Group may at its option convert all or a portion into preferred shares. The fair value of the convertible loans due from a related party was based on the discounted cash flow model. As of December 31, 2016, the estimated fair value of convertible loans was US$15.8 million. The Group classifies the valuation techniques that use unobservable inputs as Level 3 of fair value measurements. The key inputs used in the valuation of convertible loans due from a related party as of December 31, 2016 were the same as the key inputs in available-for-sale investments valuation as of December 31, 2016. Other non-current assets Other non-current assets are financial assets with carrying values that approximate fair value due to the change in fair value after considering the discount rate, being immaterial. The Group estimated fair values of other non-current assets using the discounted cash flow method. The Group classifies the valuation technique as Level 3 of fair value measurement, as it uses estimated cash flow input which is unobservable in the market. Short-term bank loans The carrying value of the short-term bank loans approximates its fair value due to its short term nature. The rate of interest under the loan agreement with the lending bank was determined based on the prevailing interest rates in the market. The Group estimated the fair value of the short-term bank loans using the discounted cash flow methodology. The Group classifies the valuation techniques that use these inputs as Level 2 of fair value measurements.

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- Definition The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14064-108612 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13537-108611 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13504-108611 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13433-108611 + Details
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