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Commitments and Contingencies (Details Textual) (USD $)
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0 Months Ended | 1 Months Ended | ||||||
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Dec. 09, 2010
lender
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Mar. 31, 2012
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Mar. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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Jun. 06, 2011
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Mar. 31, 2013
South Edge guarantee [Member]
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Oct. 26, 2011
South Edge [Member]
JointVenture
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| Loss Contingencies [Line Items] | ||||||||
| Reserved for litigation and asserted claims | $ 16,179,000 | $ 16,067,000 | ||||||
| Joint venture ownership percentage | 3.53% | |||||||
| Springing Repayment Guarantee_Original demand Letter | 13,200,000 | |||||||
| Number of co-ventures in joint venture | 4 | |||||||
| Commitments and Contingencies (Textual) [Abstract] | ||||||||
| Warranty reserve | 21,705,000 | 21,384,000 | 22,064,000 | 23,136,000 | ||||
| Number of lenders filing petition for involuntary bankruptcy | 3 | |||||||
| Amount requested in demand for arbitration related to alleged breaches | 13,500,000 | |||||||
| Additional amount requested in demand for arbitration related to pro rata future infrastructure improvement costs | $ 9,800,000 |
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
The pro-rata share of alleged future infrastructure improvement costs to be incurred by the joint venture. No definition available.
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| X | ||||||||||
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- Definition
Number of co ventures in the joint venture. No definition available.
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| X | ||||||||||
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- Definition
The number of lenders who filed a petition seeking to place the venture into an involuntary bankruptcy. No definition available.
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| X | ||||||||||
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- Definition
The Company's percentage of interest in the joint venture. No definition available.
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| X | ||||||||||
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- Definition
Amount in original demand letter from lenders seeking to place joint venture into involuntary bankruptcy (June 2011) No definition available.
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| X | ||||||||||
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- Definition
Aggregate carrying amount of the estimated litigation liability for known or estimated probable loss from litigation, which may include attorneys' fees and other litigation costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
The value (monetary amount) of the award the plaintiff seeks in the legal matter. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount as of the balance sheet date of the aggregate standard product warranty liability. Does not include the balance for the extended product warranty liability. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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