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Other Balance Sheet Components | 12 Months Ended
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Dec. 31, 2016
Other Balance Sheet Components |
Other Balance Sheet Components | 8. Other Balance Sheet Components
|  | As of December 31, |
|  | 2014 |  | 2015 |  | 2016 |
|  | (In thousands) |
Accounts receivable, net: |  |  |  |  |  |  |
Due from third parties |  |  |  | $ | 33,592 |  | $ | 66,701 |
Due from Alibaba |  |  |  | 54,052 |  | 24,293 |
Due from other related parties |  |  |  | 33,961 |  | 31,589 |
Total gross amount |  |  |  | $ | 121,605 |  | $ | 122,583 |
Allowance for doubtful accounts: |  |  |  |  |  |  |
Balance at the beginning of the year |  | (3,242 | ) | (2,440 | ) | (1,375 | )
Reversal (additional provision) charged to expenses, net |  | (2,138 | ) | 368 |  | (7,787 | )
Write-off |  | 2,940 |  | 697 |  | 2,633 |
Balance at the end of the year |  | (2,440 | ) | (1,375 | ) | (6,529 | )
|  |  |  | $ | 120,230 |  | $ | 116,054 |
Prepaid expenses and other current assets: |  |  |  |  |  |  |
Rental and other deposits |  |  |  | $ | 3,636 |  | $ | 3,965 |
Prepayment for investments |  |  |  | 25,574 |  | 24,953 |
Advertising prepayment |  |  |  | 3,531 |  | 5,267 |
Prepayment to outsourced service providers |  |  |  | 5,422 |  | 4,043 |
Amounts deposited by users* |  |  |  | — |  | 21,203 |
Others |  |  |  | 4,132 |  | 7,233 |
|  |  |  | $ | 42,295 |  | $ | 66,664 |
Property and equipment, net: |  |  |  |  |  |  |
Computers and equipment |  |  |  | $ | 93,947 |  | $ | 94,170 |
Leasehold improvements |  |  |  | 4,795 |  | 2,054 |
Furniture and fixtures |  |  |  | 1,309 |  | 922 |
Others |  |  |  | 1,464 |  | 1,655 |
Property and equipment, gross |  |  |  | 101,515 |  | 98,801 |
Less: Accumulated depreciation |  |  |  | (78,665 | ) | (75,985 | )
|  |  |  | $ | 22,850 |  | $ | 22,816 |
Accrued and other liabilities**: |  |  |  |  |  |  |
Payroll and welfare |  |  |  | $ | 25,972 |  | $ | 33,786 |
Marketing expenses |  |  |  | 30,035 |  | 40,968 |
Payroll withholding taxes |  |  |  | 3,547 |  | 3,547 |
Sales rebates |  |  |  | 19,593 |  | 31,598 |
Professional fees |  |  |  | 3,127 |  | 4,255 |
VAT and other tax payable |  |  |  | 23,071 |  | 35,728 |
Payable to other service providers |  |  |  | 2,673 |  | 1,457 |
Amounts due to users* |  |  |  | — |  | 21,203 |
Others |  |  |  | 9,022 |  | 7,600 |
|  |  |  | $ | 117,040 |  | $ | 180,142 |
* Weibo wallet enables users to conduct interest-generation activities on Weibo, such as handing out “red envelops” and coupons to users and purchase different types of products and services on Weibo, including those offered by the Group, such as marketing services and VIP membership, and those offered by Weibo’s platform partners, such as e-commerce merchandises, financial products and virtual gifts. Amounts deposited by users primarily represent the receivables temporarily held in Weibo’s account on a third party online payment platform for Weibo wallet users. Amounts due to users represent the balances that are payable on demand to Weibo wallet users and therefore are reflected as current liability on the consolidated balance sheets. ** Include amounts due to third parties, employees, related parties and Weibo wallet users.

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