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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
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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 |  |
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 |  |  |  |  |  |
Business combination |  | 104,832 |  |  |  |  |  |  |  |  |  | 104,832
Accretion of redeemable noncontrolling interests |  | 0 |  |  |  |  |  |  |  |  |  |
Issuance of subsidiary shares |  | 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)
Exercise of share-based awards (in shares) |  |  |  | 51,593 |  |  |  |  |  |  |  |
Exercise of share-based awards |  | 54,171 |  |  |  | 54,171 |  |  |  |  |  |
Share-based compensation |  | 197,265 |  |  |  | 196,360 |  |  |  |  |  | 905
Business combination |  | 32,507 |  |  |  |  |  |  |  |  |  | 32,507
Change of a subsidiary's noncontrolling interests |  | (1,259) |  |  |  |  |  |  |  |  |  | (1,259)
Acquisition of subsidiaries' shares from noncontrolling shareholders |  | (1,021) |  |  |  | (1,499) |  |  |  |  |  | 478
Disposal of a subsidiary |  | 5,253 |  |  |  |  |  |  |  |  |  | 5,253
Accretion of redeemable noncontrolling interests |  | (22,143) |  |  |  |  |  | (22,143) |  |  |  |
Issuance of subsidiary shares |  | 74,471 |  |  |  | 74,471 |  |  |  |  |  |
Balances at Dec. 31, 2012 |  | 26,181,842 |  | 15 |  | 2,095,273 |  | 24,038,219 |  | (78,278) |  | 126,613
Balances (in shares) at Dec. 31, 2012 |  |  |  | 34,965,710 |  |  |  |  |  |  |  |
Net income |  | 10,417,943 |  |  |  |  |  | 10,518,966 |  |  |  | (101,023)
Other comprehensive income |  | 914,114 |  |  |  |  |  |  |  | 921,374 |  | (7,260)
Exercise of share-based awards (in shares) |  |  | 64,663 | 64,663 |  |  |  |  |  |  |  |
Exercise of share-based awards |  | 166,253 |  |  |  | 165,403 |  |  |  |  |  | 850
Share-based compensation |  | 505,653 |  |  |  | 485,185 |  |  |  |  |  | 20,468
Business combination |  | 427,813 |  |  |  |  |  |  |  |  |  | 427,813
Acquisition of subsidiaries' shares from noncontrolling shareholders | (22,870) | (138,439) |  |  |  | (138,439) |  |  |  |  |  |
Accretion of redeemable noncontrolling interests | (5,253) | (31,799) |  |  |  |  |  | (31,799) |  |  |  |
Reclassification of redeemable noncontrolling interests |  | 888,934 |  |  |  |  |  |  |  |  |  | 888,934
Issuance of subsidiary shares |  | 1,332,936 |  |  |  | 448,996 |  |  |  |  |  | 883,940
Balances at Dec. 31, 2013 | $ 6,717,420 | 40,665,250 | $ 2 | 15 | $ 504,884 | 3,056,418 | $ 5,703,187 | 34,525,386 | $ 139,270 | 843,096 | $ 370,077 | 2,240,335
Balances (in shares) at Dec. 31, 2013 |  |  | 35,030,373 |  |  |  |  |  |  |  |  |

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