2.2.0.25truefalse4110 - Disclosure - Commitments and Contingencies (Details)truefalseIn Thousandsfalse1falsefalseUSDtruefalse{us-gaap_LossContingenciesByNatureOfContingencyAxis} : Insurance Claims [Member] 3/31/2011 USD ($) $AS_OF_Mar31_2011_us-gaap_LossContingenciesByNatureOfContingencyAxis_InsuranceClaimsMemberhttp://www.sec.gov/CIK0001333141instant2011-03-31T00:00:000001-01-01T00:00:00falsefalseInsurance Claims [Member]us-gaap_LossContingenciesByNatureOfContingencyAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_InsuranceClaimsMemberus-gaap_LossContingenciesByNatureOfContingencyAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$2true0us-gaap_LossContingenciesLineItemsus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringLine items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.falsefalseLoss Contingencies [Line Items]3false0us-gaap_LossContingencyAccrualCarryingValueCurrentus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse115000000115000falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe portion of the carrying amount as of the balance sheet date of the combined total of loss contingency reserves which is expected to be resolved within one year or the normal operating cycle, if longer.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 9, 10, 11, 12 falsefalseLoss Contingency Accrual Carrying Value Current12Commitments and Contingencies (Details) (Insurance Claims [Member], USD $)ThousandsUnKnownUnKnownUnKnownfalsetrue