Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)
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12 Months Ended | ||
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2010
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Significant Accounting Policies [Line Items] | |||
Restricted cash and cash equivalents | $ 1,160,000 | $ 1,255,000 | |
Carrying value of capitalized software | 1,797,000 | 2,176,000 | |
Capitalized software amortization | 1,320,000 | 1,493,000 | 1,206,000 |
Contractual Period Of Sale Contracts | 5 years | ||
Property and Equipment [Member]
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Significant Accounting Policies [Line Items] | |||
Depreciation expense of property and equipment | $ 962,000 | $ 893,000 | $ 890,000 |
Maximum [Member]
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Significant Accounting Policies [Line Items] | |||
Useful life range | 7 years | ||
Amortization of Acquisition Cost | 10 years | ||
Reimbursement range on water, sewer and other infrastructure-related assets | 100.00% | ||
Capitalize reforestation costs | 2 years | ||
Minimum [Member]
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Significant Accounting Policies [Line Items] | |||
Useful life range | 3 years | ||
Reimbursement range on water, sewer and other infrastructure-related assets | 70.00% |
X | ||||||||||
- Definition
Acquisition Cost Of Mineral Interests Owned Amortization Period No definition available.
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X | ||||||||||
- Definition
Number Of Years Planting Capitalized No definition available.
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X | ||||||||||
- Definition
Oil And Gas Property Contracts Period No definition available.
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X | ||||||||||
- Definition
Reimbursement As Percentage Of Allowable Cost As Defined By District No definition available.
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X | ||||||||||
- Details
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X | ||||||||||
- Definition
For each income statement presented, the amount charged to expense for amortization of capitalized computer software costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
The carrying amount of capitalized computer software costs net of accumulated amortization as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
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X | ||||||||||
- Definition
The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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