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Consolidated Statements Of Shareholders' Equity In Thousands, except Share data | Total USD ($) | Total CNY | Ordinary Shares USD ($) | Ordinary Shares CNY | Additional Paid-in Capital USD ($) | Additional Paid-in Capital CNY | Retained Earnings USD ($) | Retained Earnings CNY | Accumulated Other Comprehensive Loss USD ($) | Accumulated Other Comprehensive Loss CNY | Noncontrolling interests USD ($) | Noncontrolling interests CNY
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Balances at Dec. 31, 2009 |  | 4,753,101 |  | 15 |  | 1,426,070 |  | 3,440,529 |  | (113,513) |  |
Balances (in shares) at Dec. 31, 2009 |  |  |  | 34,753,292 |  |  |  |  |  |  |  |
Net income |  | 3,525,168 |  |  |  |  |  | 3,525,168 |  |  |  |
Other comprehensive income |  | (3,611) |  |  |  | 254 |  |  |  | (3,865) |  |
Exercise of share-based awards (in shares) |  |  |  | 96,380 |  |  |  |  |  |  |  |
Exercise of share-based awards |  | 36,819 |  |  |  | 36,819 |  |  |  |  |  |
Share-based compensation |  | 94,115 |  |  |  | 94,115 |  |  |  |  |  |
Balances at Dec. 31, 2010 |  | 8,405,592 |  | 15 |  | 1,557,258 |  | 6,965,697 |  | (117,378) |  |
Balances (in shares) at Dec. 31, 2010 |  |  |  | 34,849,672 |  |  |  |  |  |  |  |
Net income |  | 6,630,602 |  |  |  |  |  | 6,638,637 |  |  |  | (8,035)
Other comprehensive income |  | 32,975 |  |  |  |  |  |  |  | 32,975 |  |
Business combination |  | 104,832 |  |  |  |  |  |  |  |  |  | 104,832
Exercise of share-based awards (in shares) |  |  |  | 64,445 |  |  |  |  |  |  |  |
Exercise of share-based awards |  | 25,553 |  |  |  | 25,553 |  |  |  |  |  |
Share-based compensation |  | 148,575 |  |  |  | 148,575 |  |  |  |  |  |
Equity issuance of subsidiaries |  | 41,406 |  |  |  | 40,384 |  |  |  |  |  | 1,022
Balances at Dec. 31, 2011 |  | 15,389,535 |  | 15 |  | 1,771,770 |  | 13,604,334 |  | (84,403) |  | 97,819
Balances (in shares) at Dec. 31, 2011 |  |  |  | 34,914,117 |  |  |  |  |  |  |  |
Net income |  | 10,447,082 |  |  |  |  |  | 10,456,028 |  |  |  | (8,946)
Other comprehensive income |  | 5,981 |  |  |  |  |  |  |  | 6,125 |  | (144)
Business combination |  | 32,507 |  |  |  |  |  |  |  |  |  | 32,507
Change of a subsidiary's noncontrolling interests |  | (1,259) |  |  |  |  |  |  |  |  |  | (1,259)
Acquisition of a subsidiary's shares from noncontrolling interests |  | (1,021) |  |  |  | (1,499) |  |  |  |  |  | 478
Disposal of a subsidiary |  | 5,253 |  |  |  |  |  |  |  |  |  | 5,253
Accretion of redeemable noncontrolling interests |  | (22,143) |  |  |  |  |  | (22,143) |  |  |  |
Exercise of share-based awards (in shares) |  |  | 51,593 | 51,593 |  |  |  |  |  |  |  |
Exercise of share-based awards |  | 54,171 |  |  |  | 54,171 |  |  |  |  |  |
Share-based compensation |  | 197,265 |  |  |  | 196,360 |  |  |  |  |  | 905
Equity issuance of subsidiaries |  | 74,471 |  |  |  | 74,471 |  |  |  |  |  |
Balances at Dec. 31, 2012 | $ 4,202,476 | 26,181,842 | $ 2 | 15 | $ 336,315 | 2,095,273 | $ 3,858,400 | 24,038,219 | $ (12,564) | (78,278) | $ 20,323 | 126,613
Balances (in shares) at Dec. 31, 2012 |  |  | 34,965,710 |  |  |  |  |  |  |  |  |

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