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 | us-gaap:SalesCommissionsAndFees | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeAlternative |
 | us-gaap:MarketingAndAdvertisingExpenseAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeAlternative |
 | us-gaap:FranchisorCostsAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeAlternative |
 | us-gaap:ProductWarrantyExpense | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeAlternative |
 | us-gaap:OtherSellingAndMarketingExpense | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeAlternative |
 | us-gaap:SellingAndMarketingExpense | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeAlternative |
 | us-gaap:SellingExpense | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeAlternativeStatementTable |
 | us-gaap:SalesCommissionsAndFees | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeAlternativeStatementTable |
 | us-gaap:MarketingAndAdvertisingExpenseAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeAlternativeStatementTable |
 | us-gaap:FranchisorCostsAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeAlternativeStatementTable |
 | us-gaap:ProductWarrantyExpense | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeAlternativeStatementTable |
 | us-gaap:OtherSellingAndMarketingExpense | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeAlternativeStatementTable |
 | us-gaap:SellingAndMarketingExpense | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeAlternativeStatementTable |
 | us-gaap:SalesCommissionsAndFees | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeRealEstateExcludingREITs |
 | us-gaap:MarketingAndAdvertisingExpenseAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeRealEstateExcludingREITs |
 | us-gaap:ProductWarrantyExpense | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeRealEstateExcludingREITs |
 | us-gaap:OtherSellingAndMarketingExpense | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeRealEstateExcludingREITs |
 | us-gaap:SellingAndMarketingExpense | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeRealEstateExcludingREITs |
 | us-gaap:SalesCommissionsAndFees | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeRealEstateExcludingREITsStatementTable |
 | us-gaap:MarketingAndAdvertisingExpenseAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeRealEstateExcludingREITsStatementTable |
 | us-gaap:ProductWarrantyExpense | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeRealEstateExcludingREITsStatementTable |
 | us-gaap:OtherSellingAndMarketingExpense | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeRealEstateExcludingREITsStatementTable |
 | us-gaap:SellingAndMarketingExpense | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeRealEstateExcludingREITsStatementTable |
 | us-gaap:SalesCommissionsAndFees | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeRealEstateInvestmentTrusts |
 | us-gaap:MarketingAndAdvertisingExpenseAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeRealEstateInvestmentTrusts |
 | us-gaap:ProductWarrantyExpense | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeRealEstateInvestmentTrusts |
 | us-gaap:OtherSellingAndMarketingExpense | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeRealEstateInvestmentTrusts |
 | us-gaap:SellingAndMarketingExpense | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeRealEstateInvestmentTrusts |
 | us-gaap:SalesCommissionsAndFees | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeRealEstateInvestmentTrustsStatementTable |
 | us-gaap:MarketingAndAdvertisingExpenseAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeRealEstateInvestmentTrustsStatementTable |
 | us-gaap:ProductWarrantyExpense | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeRealEstateInvestmentTrustsStatementTable |
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 | us-gaap:SellingAndMarketingExpense | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeRealEstateInvestmentTrustsStatementTable |
 | us-gaap:SellingExpense | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncome |
 | us-gaap:SalesCommissionsAndFees | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncome |
 | us-gaap:MarketingAndAdvertisingExpenseAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncome |
 | us-gaap:FranchisorCostsAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncome |
 | us-gaap:ProductWarrantyExpense | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncome |
 | us-gaap:OtherSellingAndMarketingExpense | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncome |
 | us-gaap:SellingAndMarketingExpense | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncome |
 | us-gaap:SellingExpense | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeStatementTable |
 | us-gaap:SalesCommissionsAndFees | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeStatementTable |
 | us-gaap:MarketingAndAdvertisingExpenseAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeStatementTable |
 | us-gaap:FranchisorCostsAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeStatementTable |
 | us-gaap:ProductWarrantyExpense | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeStatementTable |
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 | us-gaap:SellingAndMarketingExpense | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeStatementTable |
 | us-gaap:SellingExpense | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeInsuranceBasedRevenue |
 | us-gaap:SalesCommissionsAndFees | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeInsuranceBasedRevenue |
 | us-gaap:MarketingAndAdvertisingExpenseAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeInsuranceBasedRevenue |
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 | us-gaap:SellingAndMarketingExpense | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeInsuranceBasedRevenue |
 | us-gaap:SellingExpense | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeInsuranceBasedRevenueStatementTable |
 | us-gaap:SalesCommissionsAndFees | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeInsuranceBasedRevenueStatementTable |
 | us-gaap:MarketingAndAdvertisingExpenseAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeInsuranceBasedRevenueStatementTable |
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