Share-Based Compensation - Additional Information (Detail)
$ / shares in Units, ¥ in Thousands, $ in Thousands |
12 Months Ended |
|
|
|
Dec. 31, 2017
CNY (¥)
shares
|
Dec. 31, 2017
USD ($)
$ / shares
|
Dec. 31, 2016
CNY (¥)
|
Dec. 31, 2016
$ / shares
|
Nov. 30, 2016
CNY (¥)
|
Dec. 31, 2015
CNY (¥)
|
Dec. 31, 2015
$ / shares
|
Dec. 31, 2017
USD ($)
shares
|
Dec. 29, 2017
$ / shares
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
| Closing stock price | $ / shares |
|
|
|
|
|
|
|
|
$ 64.67
|
| Aggregate intrinsic value of options exercised |
¥ 257,025
|
$ 39,504
|
¥ 246,754
|
|
|
¥ 623,605
|
|
|
|
| Weighted average fair value per option granted | $ / shares |
|
$ 30.23
|
|
$ 14.62
|
|
|
$ 0.00
|
|
|
| The total grant date fair value of options vested |
64,334
|
$ 9,888
|
25,168
|
|
|
37,582
|
|
|
|
| Aggregate fair value of outstanding options at the grant date |
203,146
|
|
|
|
|
|
|
$ 31,223
|
|
| Unrecognized share-based compensation expenses |
¥ 148,513
|
|
|
|
|
|
|
$ 22,826
|
|
| Incremental compensation cost | ¥ |
|
|
|
|
¥ 53,896
|
|
|
|
|
| Maximum [Member] |
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
| Weighted average fair value per option granted | $ / shares |
|
$ 33.73
|
|
15.26
|
|
|
|
|
|
| Stock Options [Member] |
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
| Unvested options/restricted shares expected to be recognized over a weighted-average period |
2 years 11 months 12 days
|
2 years 11 months 12 days
|
|
|
|
|
|
|
|
| Stock Options [Member] | Maximum [Member] |
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
| Award vesting period |
For share options and restricted shares granted under the Plans, majority are subject to vesting schedules of approximately four years with 25% of the awards vesting each year and have a contractual term of ten years.
|
For share options and restricted shares granted under the Plans, majority are subject to vesting schedules of approximately four years with 25% of the awards vesting each year and have a contractual term of ten years.
|
|
|
|
|
|
|
|
| Stock Options [Member] | 2011 Plan [Member] | Maximum [Member] |
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
| Share based awards grant to employees, directors and consultants to purchase aggregate ordinary shares | shares |
7,843,100
|
|
|
|
|
|
|
7,843,100
|
|
| Stock Options [Member] | 2013 Plan [Member] | Maximum [Member] |
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
| Share based awards grant to employees, directors and consultants to purchase aggregate ordinary shares | shares |
3,350,000
|
|
|
|
|
|
|
3,350,000
|
|
| Stock Options [Member] | 2016 Plan [Member] | Maximum [Member] |
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
| Share based awards grant to employees, directors and consultants to purchase aggregate ordinary shares | shares |
4,890,000
|
|
|
|
|
|
|
4,890,000
|
|
| Stock Options [Member] | 2016 Plan II [Member] | Maximum [Member] |
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
| Share based awards grant to employees, directors and consultants to purchase aggregate ordinary shares | shares |
3,000,000
|
|
|
|
|
|
|
3,000,000
|
|
| Options and Restricted Shares [Member] | Maximum [Member] |
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
| Vesting period |
4 years
|
4 years
|
|
|
|
|
|
|
|
| Original contractual term |
10 years
|
10 years
|
|
|
|
|
|
|
|
| Options and Restricted Shares [Member] | Maximum [Member] | Awards Vesting Percentage Each Year [Member] |
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
| Percentage of awards vesting |
25.00%
|
25.00%
|
|
|
|
|
|
|
|
| Restricted Shares [Member] |
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
| Unvested options/restricted shares expected to be recognized over a weighted-average period |
2 years 10 months 28 days
|
2 years 10 months 28 days
|
|
|
|
|
|
|
|
| Aggregate fair value of the outstanding restricted shares |
¥ 321,724
|
$ 49,448
|
|
|
|
|
|
|
|
| Unrecognized compensation expense |
241,950
|
|
|
|
|
|
|
$ 37,187
|
|
| Weighted average grant date fair value, Granted | $ / shares |
|
$ 34.63
|
|
$ 22.30
|
|
|
$ 34.70
|
|
|
| Grant date fair value of restricted shares vested |
¥ 140,887
|
$ 21,654
|
¥ 131,861
|
|
|
¥ 38,104
|
|
|
|