Earnings/(loss) per share (Computation of Basic and Diluted Net Loss Per Share) (Details)
¥ / shares in Units, $ / shares in Units, ¥ in Thousands, $ in Thousands |
12 Months Ended |
|
Dec. 31, 2017
CNY (¥)
¥ / shares
shares
|
Dec. 31, 2017
USD ($)
$ / shares
shares
|
Dec. 31, 2016
CNY (¥)
¥ / shares
shares
|
Dec. 31, 2015
CNY (¥)
¥ / shares
shares
|
| Numerator: |
|
|
|
|
| Net income/(loss) |
¥ 1,389,242
|
$ 212,612
|
¥ (772,963)
|
¥ (1,648,583)
|
| Add: Net loss/(income) attributable to noncontrolling interests |
(4,667)
|
$ (714)
|
4,916
|
80,705
|
| Less: Deemed dividend to mezzanine classified noncontrolling interests | ¥ |
(99,507)
|
|
(15,717)
|
(5,762)
|
| Numerator for basic and diluted net earnings/(loss) per share | ¥ |
¥ 1,285,068
|
|
¥ (783,764)
|
¥ (1,573,640)
|
| Denominator: |
|
|
|
|
| Weighted average number of ordinary shares used in computing net earnings/(loss) per share—basic | shares |
291,475,725
|
291,475,725
|
286,975,068
|
234,811,986
|
| Weighted average number of ordinary shares used in computing net earnings/(loss) per share—diluted | shares |
295,304,995
|
295,304,995
|
286,975,068
|
234,811,986
|
| Net earnings/(loss) per ordinary share attributable to ordinary shareholders - basic | (per share) |
¥ 4.41
|
$ 0.67
|
¥ (2.73)
|
¥ (6.7)
|
| Net earnings/(loss) per ordinary share attributable to ordinary shareholders - diluted | (per share) |
4.35
|
0.67
|
(2.73)
|
(6.7)
|
| Net earnings/(loss) per ADS attributable to ordinary shareholders-basic (1 ADS represents 2 ordinary shares) | (per share) |
8.82
|
1.35
|
(5.46)
|
(13.4)
|
| Net earnings/(loss) per ADS attributable to ordinary shareholders -diluted (1 ADS represents 2 ordinary shares) | (per share) |
¥ 8.7
|
$ 1.33
|
¥ (5.46)
|
¥ (13.4)
|