|
Disposition of Assets - Additional Information (Detail) (USD $)
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
| Component of Other Expense, Nonoperating [Line Items] | |||
| Asset dispositions, proceeds | $ 200,000 | $ 0 | $ 0 |
| Asset dispositions, loss | 500,000 | ||
| Provision for reduction in carrying value of certain assets | $ 0 | $ 1,350,000 | $ 1,952,000 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The charge against earnings resulting from the write down of long lived assets other than goodwill due to the difference between the carrying value and lower fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Divestiture of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. No definition available.
|
| X | ||||||||||
|
- Definition
The difference between the value of the consideration received by the Entity on the sale or disposal and the consideration received by the Entity, including any tax related impact. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|