Summary of Significant Accounting Policies - Estimated Useful Lives of Property Plant and Equipment (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2012
Building and Building Improvements [Member]
|
Dec. 31, 2011
Building and Building Improvements [Member]
|
Dec. 31, 2012
Property and Equipment [Member]
|
Dec. 31, 2011
Property and Equipment [Member]
|
Dec. 31, 2012
Minimum [Member]
Building and Building Improvements [Member]
|
Dec. 31, 2012
Minimum [Member]
Property and Equipment [Member]
|
Dec. 31, 2011
Maximum [Member]
Building and Building Improvements [Member]
|
Dec. 31, 2011
Maximum [Member]
Property and Equipment [Member]
|
|
Property, Plant and Equipment [Line Items] | ||||||||||
Property plant and equipment, useful life | 10 years | 2 years | 40 years | 10 years | ||||||
Property plant and equipment, gross | $ 10,580 | $ 10,342 | $ 4,835 | $ 4,916 | $ 5,745 | $ 5,426 | ||||
Less: accumulated depreciation | (5,721) | (5,164) | ||||||||
Property Plant And Equipment, Net | $ 4,859 | $ 5,178 |