Restricted Net Assets (Details) ¥ in Thousands, $ in Thousands |
Dec. 31, 2015
USD ($)
|
Dec. 31, 2015
CNY (¥)
|
Dec. 31, 2014
CNY (¥)
|
|---|---|---|---|
| Restricted Net Assets | |||
| Retained earnings balance of the Group's PRC entities after appropriation to statutory reserves | $ 26,511 | ¥ 171,731 | ¥ 146,345 |
| The PRC | |||
| Restricted Net Assets | |||
| Restricted net assets | 131,547 | 113,771 | |
| Retained earnings balance of the Group's PRC entities after appropriation to statutory reserves | ¥ 310,514 | ¥ 262,568 |