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Fixed Assets (Tables) | 9 Months Ended
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Sep. 30, 2012
Fixed Assets | Fixed assets and the related accumulated depreciation as of December 31, 2011 and September 30, 2012 are as follows:
|  | As of December 31, 2011 |  |  | As of September 30, 2012 |  |  | As of September 30, 2012 |
|  | RMB |  |  | RMB |  |  | US$ |
Computer equipment |  |  | 3,450,160 |  |  |  | 4,519,515 |  |  |  | 719,118 |
Office building |  |  | 393,865 |  |  |  | 911,482 |  |  |  | 145,030 |
Office building related facility, machinery and equipment |  |  | 137,209 |  |  |  | 156,240 |  |  |  | 24,860 |
Internal-use software development costs |  |  | 88,065 |  |  |  | 91,635 |  |  |  | 14,581 |
Vehicles |  |  | 6,943 |  |  |  | 7,519 |  |  |  | 1,196 |
Office equipment |  |  | 177,509 |  |  |  | 196,635 |  |  |  | 31,287 |
Leasehold improvements |  |  | 178,932 |  |  |  | 184,672 |  |  |  | 29,384 |
Construction in progress |  |  | 2,982 |  |  |  | 118,870 |  |  |  | 18,914 |
|  |  | 4,435,665 |  |  |  | 6,186,568 |  |  |  | 984,370 |
Less: Accumulated depreciation |  |  | (1,691,424 | ) |  |  | (2,457,079 | ) |  |  | (390,956 | )
|  |  | 2,744,241 |  |  |  | 3,729,489 |  |  |  | 593,414 |

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- Definition The schedule of gross amount, accumulated depreciation, depletion and amortization expense and net amount for property, plant and equipment by classification. + References No definition available. + Details
Name: | bidu_ScheduleOfPropertyPlantAndEquipmentTableTextBlock
Namespace Prefix: | bidu_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration