| In millions, except per share items | Dec-31-19 | Dec-31-18 | Dec-31-17 | Dec-31-16 | Dec-31-15 | Dec-31-14 | Dec-31-13 | Dec-31-12 |
| | 20-F | 20-F | 20-F | 20-F | 20-F | 20-F | 20-F | 20-F |
| CASH FLOWS FROM OPERATING ACTIVITIES | | | | | | | | |
| Net income (loss) | -10.3 | -114.9 | 21.7 | -169.6 | -15.1 | 253.2 | 298.7 | 151.8 |
| |
| Adjustments to reconcile net income (loss) to net cash generated from operating activities: | | | | | | | | |
| Share-based compensation | 8.8 | 14.1 | 7.2 | 6.6 | 4.5 | 4.7 | 7.0 | 7.1 |
| Depreciation of property and equipment | 25.2 | 25.9 | 27.6 | | 14.7 | 11.6 | 9.7 | 6.4 |
| Amortization of land use rights | | 0.8 | 0.4 | | | | | |
| Deferred tax benefits | -10.5 | -21.3 | -0.3 | -2.3 | -32.4 | 27.3 | 15.5 | 24.9 |
| Net allowance for doubtful accounts and loans receivable | 8.8 | 24.6 | 32.6 | 29.7 | 18.6 | 17.4 | 13.4 | 12.3 |
| Realized and unrealized loss (gain) related to investment securities | 45.3 | 165.9 | -3.3 | | | | | |
| Impairment on investments | | | 2.8 | 2.2 | | 8.4 | | 0.0 |
| Amortization of loan origination costs | 0.4 | | 0.2 | 1.3 | 1.4 | 1.8 | 3.5 | 2.6 |
| Amortization of transaction costs for structured note | 0.1 | | | | | | | |
| Amortization of issuance costs and unamortized discount (premium) for convertible senior notes | -0.7 | 1.7 | 1.8 | | | | | |
| Loss on disposal of property and equipment | 2.3 | 1.0 | 5.6 | 0.7 | | | | |
| Deemed rental expense (Note 19) | 0.2 | 0.2 | 0.2 | | | | | |
| Allowance of doubtful accounts of commitment deposit | | | 0.2 | | | | | |
| Compensation expenses related to investment in China Index Holding Limited | 13.6 | | | | | | | |
| Foreign currency exchange gain, net | 1.2 | | | | | | | |
| Reduction in the carrying amount of the right-of-use assets | 2.5 | | | | | | | |
| Changes in operating assets and liabilities, net of effects of spinoff of CIH and disposal of subsidiaries: | | | | | | | | |
| Accounts receivable | -19.0 | -18.4 | -0.4 | 16.2 | -118.8 | -22.7 | -25.5 | -14.6 |
| Funds receivable | -3.0 | 0.5 | 2.3 | 7.8 | 13.2 | -25.2 | -29.3 | -7.6 |
| Prepayments and other current assets | -5.5 | 3.4 | 9.4 | 16.7 | -35.3 | 8.8 | -12.3 | 1.3 |
| Commitment deposits | | 5.6 | 0.8 | 4.1 | 36.7 | -47.3 | | |
| Loans receivable, current | | | 30.9 | 214.8 | -53.3 | -2.0 | | |
| Loans receivable, non-current | | | 14.8 | 36.2 | -192.1 | -79.6 | | |
| Amounts due from related parties | -0.1 | 0.2 | -0.4 | 0.3 | -0.3 | | | 1.6 |
| Other non-current assets | -1.1 | -3.4 | 5.6 | -0.3 | 2.3 | -4.3 | 0.1 | -12.0 |
| Deferred revenue | 12.6 | 12.6 | 30.3 | -6.5 | 33.1 | 4.4 | 46.4 | 4.5 |
| Accrued expenses and other liabilities | 2.7 | -42.9 | -39.3 | -17.6 | 106.4 | 50.1 | 41.4 | 27.0 |
| Customers' refundable fees | 1.1 | -2.9 | -22.7 | -27.6 | | | | |
| Income tax payable | 1.2 | -0.3 | -1.7 | -3.4 | 29.3 | | | |
| Amounts due to related parties | 0.3 | | | | -0.7 | 0.1 | 0.5 | |
| Other non-current liabilities | -6.8 | 2.6 | 0.7 | 0.1 | -0.1 | -0.1 | -0.5 | |
| Net cash generated from operating activities | 69.3 | 55.0 | 126.9 | 131.2 | -165.3 | 214.5 | | 218.9 |
| |
| CASH FLOWS FROM INVESTING ACTIVITIES | | | | | | | | |
| Acquisition of short-term investments | -249.9 | -721.7 | -383.1 | -73.8 | -129.8 | | | |
| Proceeds from maturity and disposal of fixed-rate time deposits and trading securities | 10.1 | 164.4 | 373.4 | | | | | |
| Proceeds from disposal of available-for-sale securities | 166.0 | 595.4 | 13.9 | 13.1 | | | 1.5 | |
| Acquisition of property and equipment | -12.1 | -96.1 | -65.9 | -24.6 | -45.2 | -8.0 | -6.7 | -18.1 |
| Origination of loans receivable | -118.8 | -134.8 | -212.8 | | | | | |
| Collection of loans receivable | 181.8 | 149.5 | 86.9 | | | | | |
| Purchase of land use rights | | | -34.3 | | | | | |
| Proceeds from government in connection of purchase of land use rights | | 14.4 | | | | | | |
| Acquisition of long-term investments | -44.4 | -84.5 | -13.0 | -4.9 | -127.4 | -1,388.0 | -10.0 | -49.3 |
| Proceeds from disposal of property and equipment | 0.0 | 0.2 | 5.8 | -127.7 | 0.6 | 0.1 | 0.1 | 0.3 |
| Proceeds from disposal of equity investments with readily determinable fair value | 10.3 | 6.6 | | | | | | |
| Deposits for non-current assets | | | -55.5 | | -146.7 | -48.2 | -37.7 | -8.8 |
| Net cash used in investing activities | -57.0 | -106.7 | -284.5 | -127.9 | 58.6 | -631.1 | | -129.3 |
| |
| CASH FLOWS FROM FINANCING ACTIVITIES | | | | | | | | |
| Proceeds from exercise of share options | 0.0 | 3.0 | 4.8 | 1.7 | 8.4 | 12.5 | 26.0 | 16.7 |
| Proceeds from short-term loans | 2.4 | 36.3 | | 296.6 | 72.8 | | | 46.0 |
| Proceeds from long-term loans | 71.2 | 66.8 | 111.5 | 67.7 | | | 100.0 | 80.8 |
| Proceeds from issuance of short term bond | 102.0 | | | | | | | |
| Purchase of structured note in connection with issuance of short term bond | -102.8 | | | | | | | |
| Repayment of loans | -43.7 | -26.9 | -44.0 | -182.4 | -153.5 | -90.0 | -180.7 | -30.9 |
| Proceeds from disposal of subsidiaries, net of US$1,378 cash disposed | 0.3 | | | | | | | |
| Redemption of convertible senior notes | -83.1 | -44.6 | | -394.3 | | | | |
| |
| Repurchase of ordinary shares | | | | | | | | |
| Payment of loan origination costs | -0.5 | | -0.3 | | 0.0 | -1.9 | -12.5 | -3.3 |
| Cash disposed in connection with the spinoff of CIH | -19.9 | | | | | | | |
| Net cash generated from (used in) financing activities | -74.1 | 34.7 | 72.0 | -347.3 | 587.5 | 192.1 | | -122.6 |
| Exchange rate effect on cash, cash equivalents and restricted cash | -18.9 | -26.7 | 29.3 | -29.4 | | | | |
| Net decrease in cash, cash equivalents and restricted cash | -80.7 | -43.7 | -56.4 | -373.5 | | | | |
| |
| Supplemental schedule of cash flow information: | | | | | | | | |
| Income tax paid | 9.6 | 8.2 | 8.0 | 6.7 | 6.7 | 12.2 | 38.7 | 13.2 |
| Interest paid | 20.9 | 12.2 | 16.9 | 19.4 | 13.2 | 16.1 | 13.9 | 9.0 |
| Acquisition of property and equipment through utilization of deposits | 0.3 | 57.1 | 244.6 | 14.3 | 90.7 | | 111.4 | |
| Acquisition of property and equipment included in accrued expenses and other liabilities | 3.9 | 10.4 | 6.1 | | | | | |
| Long-term investments received in settlement of funds receivable | | | 12.1 | 13.9 | | | | |
| Shareholder contribution of call option (Note 5) | 0.7 | | | | | | | |