Annual report pursuant to Section 13 and 15(d)

Hurricane Remediation And Insurance Claims (Reconciliation Of Insurance Receivables) (Details)

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Hurricane Remediation And Insurance Claims (Reconciliation Of Insurance Receivables) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Hurricane Remediation And Insurance Claims [Abstract]  
Balance, December 31, 2010 $ 1,014
Costs approved under our insurance policies, net 20,566
Payments received, net (20,865)
Balance, December 31, 2011 $ 715