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CONSOLIDATED STATEMENTS OF CASH FLOWS ¥ in Thousands, $ in Thousands | 12 Months Ended
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Dec. 31, 2015 USD ($) | Dec. 31, 2015 CNY (¥) | Dec. 31, 2014 CNY (¥) | Dec. 31, 2013 CNY (¥)
Cash flows from operating activities |  |  |  |  |  |  |  |
Net income |  | $ 154,113 |  | ¥ 998,305 | ¥ 1,064,472 |  | ¥ 477,727 |
Adjustments to reconcile net income to net cash provided by operating activities |  |  |  |  |  |  |  |
Depreciation of property and equipment |  | 18,849 |  | 122,098 | 68,035 |  | 44,963 |
Amortization of acquired intangible assets |  | 9,911 |  | 64,201 | 12,598 |  | 4,707 |
Allowance for doubtful accounts |  | 643 |  | 4,167 | 28,120 |  | 31,987 |
Loss on disposal of property and equipment |  | 580 |  | ¥ 3,759 | ¥ 61 |  | 1 |
Impairment of an equity investment |  |  |  |  |  |  | ¥ 899 |
Impairment of a cost investment |  | 926 |  | ¥ 6,000 | ¥ 4,000 |  |  |
Impairment of intangible assets |  | 8,830 |  | 57,199 | ¥ 5,697 |  |  |
Impairment of goodwill |  | 47,875 | [1] | 310,124 |  | [1] |  | [1]
Fair value change of contingent consideration | [1] | (45,150) |  | (292,471) |  |  |  |
Share-based compensation |  | 28,617 |  | 185,372 | ¥ 134,632 |  | ¥ 117,096 |
Share of income in equity method investments |  | $ (2,180) |  | ¥ (14,120) | (4,275) |  | ¥ (1,869) |
Gain on disposal of an equity investment |  |  |  |  | (999) |  |  |
Deferred income taxes, net |  | $ (3,865) |  | ¥ (25,039) | (45,751) |  | ¥ (35,414) |
Foreign exchange (gains) / losses, net |  | 5,881 |  | 38,099 | ¥ 10,399 |  | ¥ (29,555) |
Other non-operating expense |  | $ 334 |  | ¥ 2,165 |  |  |  |
Other non-operating income |  |  |  |  | ¥ (36,714) |  |  |
Changes in operating assets and liabilities, net of business acquisition |  |  |  |  |  |  |  |
Accounts receivable |  | $ 19,086 |  | ¥ 123,634 | (183,527) |  | ¥ (14,472) |
Prepayments and other assets |  | 6,967 |  | 45,128 | ¥ (90,924) |  | ¥ (46,624) |
Amounts due from related parties |  | (204) |  | (1,323) |  |  |  |
Inventory |  | (1,710) |  | (11,080) |  |  |  |
Amounts due to related parties |  | (2,122) |  | (13,743) | ¥ 28,252 |  | ¥ 36 |
Accounts payable |  | (3,497) |  | (22,654) | 23,166 |  | 26,342 |
Deferred revenue |  | 3,939 |  | 25,519 | 54,343 |  | 136,945 |
Advances from customers |  | 3,236 |  | 20,959 | 14,578 |  | 12,034 |
Income tax payable |  | 2,816 |  | 18,242 | 11,054 |  | 30,106 |
Accrued liabilities and other current liabilities |  | 27,618 |  | 178,901 | 204,134 |  | 136,264 |
Net cash provided by operating activities |  | 281,493 |  | 1,823,442 | 1,301,351 |  | 891,173 |
Cash flows from investing activities |  |  |  |  |  |  |  |
Placements of short-term deposits |  | (288,646) |  | (1,869,789) | (5,343,934) |  | (1,529,090) |
Maturities of short-term deposits |  | 657,262 |  | 4,257,609 | 2,550,059 |  | ¥ 995,996 |
Placements of restricted short-term deposits |  | (230,448) |  | (1,492,799) | (155,000) |  |  |
Maturities of restricted short-term deposits |  | 80,734 |  | 522,981 | 55,000 |  |  |
Purchase of property and equipment |  | (33,938) |  | (219,843) | (178,470) |  | ¥ (55,606) |
Purchase of intangible assets |  | (7,862) |  | (50,931) | (21,757) |  | ¥ (14,631) |
Purchase of other non-current assets |  | (297,358) |  | (1,926,224) | (510,341) |  |  |
Cash paid for equity investments |  | (77) |  | (500) | (15,000) |  | ¥ (11,000) |
Cash paid for cost investments |  | (54,309) |  | (351,800) | ¥ (73,402) |  | ¥ (47,110) |
Acquisition of an available-for-sale debt security |  | $ (944) |  | ¥ (6,117) |  |  |  |
Cash received from disposal of a cost investment |  |  |  |  |  |  | ¥ 3,000 |
Cash received from disposal of an equity investment |  |  |  |  | ¥ 1,563 |  |  |
Cash dividend received from an equity investee |  | $ 370 |  | ¥ 2,400 |  |  |  |
Net cash (paid) / received in connection with business acquisition |  | 857 |  | 5,553 | ¥ (170,950) |  |  |
Payment on behalf of related parties |  | (14,713) |  | (95,311) | ¥ (61,000) |  |  |
Repayment of expense paid on behalf of a related party |  | 24,110 |  | 156,181 |  |  |  |
Loans to related parties |  | (24,545) |  | (159,000) | ¥ (1,500) |  |  |
Repayment of loans from related parties |  | 24,700 |  | 160,000 | 1,500 |  | ¥ 1,000 |
Loans to employees and third parties |  | (932) |  | (6,037) | (35,512) |  | (3,770) |
Repayment of loans from employees and third parties |  | 2,043 |  | 13,237 | 4,531 |  | 1,560 |
Proceeds from disposal of property and equipment |  | 1,909 |  | 12,368 | 158 |  | 48 |
Net cash used in investing activities |  | (161,787) |  | (1,048,022) | (3,954,055) |  | (659,603) |
Cash flows from financing activities |  |  |  |  |  |  |  |
Proceeds from exercise of vested share options |  | 38 |  | 245 | ¥ 213 |  | ¥ 115 |
Repurchase of common shares |  | (160,809) |  | (1,041,686) |  |  |  |
Capital contributions from the non-controlling interests |  | 1,204 |  | 7,798 |  |  |  |
Proceeds from bank borrowings |  | 177,298 |  | 1,148,500 |  |  |  |
Repayment of bank borrowings |  | $ (69,777) |  | ¥ (452,000) |  |  |  |
Payments of listing expenses |  |  |  |  |  |  | ¥ (5,802) |
Proceeds from issuance of convertible bonds, net of issuance costs |  |  |  |  | ¥ 2,402,549 |  |  |
Net cash (used in) / provided by financing activities |  | $ (52,046) |  | ¥ (337,143) | 2,402,762 |  | ¥ (5,687) |
Net increase / (decrease) in cash and cash equivalents |  | 67,660 |  | 438,277 | (249,942) |  | 225,883 |
Cash and cash equivalents at the beginning of the year |  | 73,331 |  | 475,028 | 729,598 |  | 504,702 |
Effect of exchange rate changes on cash and cash equivalents |  | 2,412 |  | 15,629 | (4,628) |  | (987) |
Cash and cash equivalents at the end of the year |  | 143,403 |  | 928,934 | 475,028 |  | ¥ 729,598 |
Supplemental disclosure of cash flows information: |  |  |  |  |  |  |  |
Cash paid for interest, net of amounts capitalized |  | (12,070) |  | (78,186) | (28,769) |  |  |
-Acquisition of property and equipment in form of accounts payable |  | 10,293 |  | 66,673 | 25,514 |  | ¥ 7,653 |
-Income taxes paid |  | $ (28,578) |  | ¥ (185,124) | ¥ (188,979) |  | ¥ (95,259) |
[1] | (1) Share-based compensation was allocated in cost of revenues and operating expenses as follows: For the year ended December 31, Note 2013 2014 2015 2015 RMB RMB RMB US$ (Note2(e)) Cost of revenues 9,860 18,037 23,963 3,699 Research and development expenses 39,587 54,141 70,951 10,953 Sales and marketing expenses 1,318 2,807 3,283 507 General and administrative expenses 66,331 59,647 87,175 13,458

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- Definition The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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- Definition The increase (decrease) during the period in the amount due for taxes based on the reporting entity's earnings or attributable to the entity's income earning process (business presence) within a given jurisdiction. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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- Definition The increase (decrease) during the reporting period in the aggregate amount of expenses incurred but not yet paid. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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- Definition The increase (decrease) during the reporting period in the amount of prepayments by customers for goods or services to be provided at a later date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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- Definition The increase (decrease) during the reporting period, excluding the portion taken into income, in the liability reflecting revenue yet to be earned for which cash or other forms of consideration was received or recorded as a receivable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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- Definition The aggregate increase (decrease) during the reporting period in the amount due from the following types of related parties: a parent company and its subsidiaries; subsidiaries of a common parent; an entity and trust for the benefit of employees, such as pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; an entity and its principal owners, management, or member of their immediate families, affiliates, or other parties with the ability to exert significant influence. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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- Definition The increase (decrease) during the reporting period in the aggregate amount of obligations to be paid to the following types of related parties: a parent company and its subsidiaries; subsidiaries of a common parent; an entity and trust for the benefit of employees, such as pension and profit-sharing trusts that are managed by or under the trusteeship of the entities' management; an entity and its principal owners, management, or member of their immediate families, affiliates, or other parties with the ability to exert significant influence. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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- Definition The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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- Definition The amount of cash paid for interest during the period net of cash paid for interest that is capitalized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586 + Details
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- Definition Amount of cash inflow (outflow) of financing activities, excluding discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3574-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3521-108585 + Details
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- Definition Amount of cash inflow (outflow) of investing activities, excluding discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3574-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3521-108585 + Details
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- Definition Amount of cash inflow (outflow) from operating activities, excluding discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3536-108585 + Details
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- Definition Other expenses or losses included in net income that result in no cash outflows or inflows in the period and are not separately disclosed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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- Definition Other income or gains included in net income that result in no cash inflows or outflows in the period and are not separately disclosed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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- Definition The net cash outflow or inflow associated with the acquisition or sale of a business segment during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3179-108585 + Details
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- Definition The cash outflow to reacquire common stock during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The cash outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding goodwill. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3213-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 + Details
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- Definition The cash inflow associated with the sale of investments that are pledged or subject to withdrawal restrictions during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3179-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 + Details
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- Definition The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3255-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=51664549&loc=SL4569616-111683 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4K -URI http://asc.fasb.org/extlink&oid=35736750&loc=SL4591552-111686 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4573702-111684 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4J -URI http://asc.fasb.org/extlink&oid=35736750&loc=SL4591551-111686 + Details
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- Definition Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.5) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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- Definition The cash outflow to settle a bank borrowing during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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- Definition The cash outflow associated with payment on behalf of a related party. + References No definition available. + Details
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- Definition The cash outflow associated with loans to employees and third parties of the entity. + References No definition available. + Details
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- Definition The cash outflow associated with the purchase of or advances to cost method investments. + References No definition available. + Details
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- Definition The cash outflow for acquisition of non-current assets not otherwise defined in the taxonomy, that are expected to be realized in cash, sold or consumed after one year or beyond the normal operating cycle, if longer. + References No definition available. + Details
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- Definition The cash inflow from repayment of loans from employees and third parties. + References No definition available. + Details
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- Definition The cash inflow associated with disposal of investments accounted for under the cost method. + References No definition available. + Details
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