Share-Based Compensation Plans (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified
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12 Months Ended |
0 Months Ended |
Dec. 31, 2014
plans
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Dec. 31, 2013
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Dec. 31, 2012
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Feb. 07, 2014
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Jan. 02, 2015
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Feb. 06, 2015
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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Number of share-based compensation plans |
2frt_NumberOfShareBasedCompensationPlans |
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Number of options granted in period |
0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod |
0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod |
0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod |
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Total cash received from options exercised |
$ 2.3us-gaap_EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions |
$ 1.0us-gaap_EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions |
$ 5.7us-gaap_EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions |
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Total intrinsic value of options exercised |
1.1us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue |
0.7us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue |
4.2us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue |
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Total unrecognized compensation cost related to unvested share-based compensation arrangements |
15.5us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized |
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Period for recognition (in years) |
9 years 5 months |
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Weighted-average period for recognition |
2 years 1 month |
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Minimum |
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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Vesting period |
3 years |
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Maximum |
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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Vesting period |
6 years |
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Employee Stock Option |
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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Contractual term (in years) |
10 years |
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Restricted Stock |
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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Weighted-average grant-date fair value of stock awarded |
$ 111.45us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember |
$ 106.70us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember |
$ 96.35us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember |
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Total vesting-date fair value of shares vested during the year |
$ 12.1us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember |
$ 10.6us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember |
$ 10.3us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember |
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Granted (in shares) |
119,677us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember |
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Restricted Stock | Minimum |
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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Vesting period |
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2 years |
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Restricted Stock | Maximum |
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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Vesting period |
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5 years |
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Performance Incentive Plan 2010 |
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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Number of shares authorized |
2,450,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized / us-gaap_PlanNameAxis = frt_PerformanceIncentivePlan2010Member |
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Long Term Incentive Plan 2001 |
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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Number of shares authorized |
3,250,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized / us-gaap_PlanNameAxis = frt_LongTermIncentivePlan2001Member |
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Stock Award |
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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Granted (in shares) |
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5,059us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_SubsequentEventTypeAxis = frt_StockAwardMember |
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Stock Award | Restricted Stock |
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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Granted (in shares) |
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50,734us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_SubsequentEventTypeAxis = frt_StockAwardMember |