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Investment in Unconsolidated Joint Ventures (Details) (USD $)
 12 Months Ended 0 Months Ended
Dec. 31, 2014
Property
Equity_Investment
Dec. 31, 2013
Dec. 31, 2012
Jan. 24, 2014
Dec. 13, 2013
Jun. 03, 2013
Feb. 10, 2014
Nov. 17, 2014
Dec. 19, 2013
Nov. 05, 2013
Schedule of Equity Method Investments [Line Items]                    
Number of real estate properties 51us-gaap_NumberOfRealEstateProperties                  
Number of equity method investments 2pky_NumberofEquityMethodInvestments                  
Total Purchase Price $ 862,475,000us-gaap_BusinessCombinationConsiderationTransferred1                  
Investment in unconsolidated joint ventures 55,550,000us-gaap_EquityMethodInvestments 151,162,000us-gaap_EquityMethodInvestments                
New mortgage loan 47,000,000us-gaap_MortgageLoansOnRealEstateNewMortgageLoans 3,523,000us-gaap_MortgageLoansOnRealEstateNewMortgageLoans 0us-gaap_MortgageLoansOnRealEstateNewMortgageLoans              
Payments to acquire equity method investments 3,505,000us-gaap_PaymentsToAcquireEquityMethodInvestments 86,685,000us-gaap_PaymentsToAcquireEquityMethodInvestments 0us-gaap_PaymentsToAcquireEquityMethodInvestments              
Ownership percentage (in percent) 95.50%us-gaap_MinorityInterestOwnershipPercentageByParent                  
Excess investment amortization period   40 years                
Austin Joint Venture                    
Schedule of Equity Method Investments [Line Items]                    
Percentage of equity interest                 33.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= pky_AustinJointVentureMember		  
PKY CalSTRS Austin, LLC                    
Schedule of Equity Method Investments [Line Items]                    
Investment in unconsolidated joint ventures 0us-gaap_EquityMethodInvestments
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= pky_PKYCalSTRSAustinLLCMember		 93,171,000us-gaap_EquityMethodInvestments
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= pky_PKYCalSTRSAustinLLCMember		                
Percentage of equity interest 50.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= pky_PKYCalSTRSAustinLLCMember		                  
Company's share of the Partner's equity   62,700,000us-gaap_EquityMethodInvestmentUnderlyingEquityInNetAssets
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= pky_PKYCalSTRSAustinLLCMember		                
Excess investment   30,500,000us-gaap_EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= pky_PKYCalSTRSAustinLLCMember		                
CalSTRS Joint Venture                    
Schedule of Equity Method Investments [Line Items]                    
Percentage of equity interest             40.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= pky_CalSTRSJointVentureMember		      
Additional interest acquired in equity method investment       17.00%pky_EquityMethodInvestmentAdditionalInterestAcquired
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= pky_CalSTRSJointVentureMember		            
Payments to acquire equity method investments       41,500,000us-gaap_PaymentsToAcquireEquityMethodInvestments
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= pky_CalSTRSJointVentureMember		            
US Airways Building                    
Schedule of Equity Method Investments [Line Items]                    
Investment in unconsolidated joint ventures 39,760,000us-gaap_EquityMethodInvestments
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= pky_USAirwaysBuildingMember		 42,501,000us-gaap_EquityMethodInvestments
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= pky_USAirwaysBuildingMember		                
Percentage of equity interest 74.58%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= pky_USAirwaysBuildingMember		                  
7000 Central Park                    
Schedule of Equity Method Investments [Line Items]                    
Interest rate on mortgage (in percent)         1.97%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= pky_A7000CentralParkMember		          
Previously acquired interest percentage                   40.00%us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireePercentage
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= pky_A7000CentralParkMember
Investment in unconsolidated joint ventures         7,600,000us-gaap_EquityMethodInvestments
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= pky_A7000CentralParkMember		         45,000,000us-gaap_EquityMethodInvestments
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= pky_A7000CentralParkMember
New mortgage loan         30,000,000us-gaap_MortgageLoansOnRealEstateNewMortgageLoans
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= pky_A7000CentralParkMember		          
US Airways Building | US Airways Building                    
Schedule of Equity Method Investments [Line Items]                    
Ownership interest acquired (in percent)           75.00%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
/ us-gaap_BusinessAcquisitionAxis
= pky_USAirwaysBuildingMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= pky_USAirwaysBuildingMember		        
Total Purchase Price           41,800,000us-gaap_BusinessCombinationConsiderationTransferred1
/ us-gaap_BusinessAcquisitionAxis
= pky_USAirwaysBuildingMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= pky_USAirwaysBuildingMember		        
Mortgage secured for properties in a business acquisition           3,500,000pky_MortgageSecuredForBusinessAcquisition
/ us-gaap_BusinessAcquisitionAxis
= pky_USAirwaysBuildingMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= pky_USAirwaysBuildingMember		        
Interest rate on mortgage (in percent)           3.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_BusinessAcquisitionAxis
= pky_USAirwaysBuildingMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= pky_USAirwaysBuildingMember		        
Leased percentage of a property acquisition           100.00%pky_LeasedPercentageOfPropertyAcquisition
/ us-gaap_BusinessAcquisitionAxis
= pky_USAirwaysBuildingMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= pky_USAirwaysBuildingMember		        
Months notice of termination 12 months                  
Ownership percentage of noncontrolling interest           25.00%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
/ us-gaap_BusinessAcquisitionAxis
= pky_USAirwaysBuildingMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= pky_USAirwaysBuildingMember		        
Preferred Stock | 7000 Central Park                    
Schedule of Equity Method Investments [Line Items]                    
Investment in unconsolidated joint ventures                   37,000,000us-gaap_EquityMethodInvestments
/ us-gaap_InvestmentTypeAxis
= us-gaap_PreferredStockMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= pky_A7000CentralParkMember
Common Stock | 7000 Central Park                    
Schedule of Equity Method Investments [Line Items]                    
Investment in unconsolidated joint ventures                   8,000,000us-gaap_EquityMethodInvestments
/ us-gaap_InvestmentTypeAxis
= us-gaap_CommonStockMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= pky_A7000CentralParkMember
Percentage of equity interest                   40.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_InvestmentTypeAxis
= us-gaap_CommonStockMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= pky_A7000CentralParkMember
London Interbank Offered Rate (LIBOR) | 7000 Central Park                    
Schedule of Equity Method Investments [Line Items]                    
Debt instrument variable rate basis         LIBOR          
Derivative basis spread over variable rate         1.75%us-gaap_DerivativeBasisSpreadOnVariableRate
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= pky_A7000CentralParkMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember		          
One-Month LIBOR | 7000 Central Park                    
Schedule of Equity Method Investments [Line Items]                    
Debt instrument variable rate basis         One-Month LIBOR          
Derivative basis spread over variable rate         1.80%us-gaap_DerivativeBasisSpreadOnVariableRate
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= pky_A7000CentralParkMember
/ us-gaap_VariableRateAxis
= pky_OneMonthLIBORMember		          
Parkway Properties Inc. and Madison International Realty | Austin Joint Venture                    
Schedule of Equity Method Investments [Line Items]                    
Percentage of equity interest                 50.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ dei_LegalEntityAxis
= pky_ParkwayPropertiesInc.andMadisonInternationalRealtyMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= pky_AustinJointVentureMember		  
CalSTRS | CalSTRS Joint Venture                    
Schedule of Equity Method Investments [Line Items]                    
Ownership interest acquired (in percent)             60.00%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
/ us-gaap_BusinessAcquisitionAxis
= pky_CalSTRSJointVentureMember
/ dei_LegalEntityAxis
= pky_CaliforniaStateTeachersRetirementSystemMember		      
Payments to acquire interest in joint venture             24,900,000us-gaap_PaymentsToAcquireInterestInJointVenture
/ us-gaap_BusinessAcquisitionAxis
= pky_CalSTRSJointVentureMember
/ dei_LegalEntityAxis
= pky_CaliforniaStateTeachersRetirementSystemMember		      
CalSTRS | CalSTRS Joint Venture                    
Schedule of Equity Method Investments [Line Items]                    
Ownership percentage (in percent)             60.00%us-gaap_MinorityInterestOwnershipPercentageByParent
/ us-gaap_CounterpartyNameAxis
= pky_CaliforniaStateTeachersRetirementSystemMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= pky_CalSTRSJointVentureMember		      
CalSTRS | San Jacinto Center and One Congress Plaza                    
Schedule of Equity Method Investments [Line Items]                    
Ownership interest acquired (in percent)               60.00%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
/ us-gaap_BusinessAcquisitionAxis
= pky_SanJacintoCenterandOneCongressPlazaMember
/ us-gaap_CounterpartyNameAxis
= pky_CaliforniaStateTeachersRetirementSystemMember		    
Ownership of property after acquisition (percent)               100.00%us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeIncludingSubsequentAcquisitionPercentage
/ us-gaap_BusinessAcquisitionAxis
= pky_SanJacintoCenterandOneCongressPlazaMember
/ us-gaap_CounterpartyNameAxis
= pky_CaliforniaStateTeachersRetirementSystemMember		    
Frost Bank Tower, 300 West 6th Street, and One American Center                    
Schedule of Equity Method Investments [Line Items]                    
Net proceeds from the sale               43,600,000us-gaap_ProceedsFromDivestitureOfBusinesses
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= pky_FrostBankTower300West6thStreetandOneAmericanCenterMember		    
Gain on disposal of assets               52,800,000us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= pky_FrostBankTower300West6thStreetandOneAmericanCenterMember		    
Frost Bank Tower, 300 West 6th Street, and One American Center | CalSTRS                    
Schedule of Equity Method Investments [Line Items]                    
Ownership interest of disposal group (percent)               40.00%pky_DisposalGroupNotDiscontinuedOperationOwnershipInterest
/ us-gaap_CounterpartyNameAxis
= pky_CaliforniaStateTeachersRetirementSystemMember
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= pky_FrostBankTower300West6thStreetandOneAmericanCenterMember		    
Net proceeds from the sale               43,600,000us-gaap_ProceedsFromDivestitureOfBusinesses
/ us-gaap_CounterpartyNameAxis
= pky_CaliforniaStateTeachersRetirementSystemMember
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= pky_FrostBankTower300West6thStreetandOneAmericanCenterMember		    
Gain on disposal of assets               $ 52,800,000us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal
/ us-gaap_CounterpartyNameAxis
= pky_CaliforniaStateTeachersRetirementSystemMember
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= pky_FrostBankTower300West6thStreetandOneAmericanCenterMember		    
Consolidated Properties                    
Schedule of Equity Method Investments [Line Items]                    
Number of real estate properties 49us-gaap_NumberOfRealEstateProperties
/ us-gaap_RealEstatePropertiesAxis
= us-gaap_ConsolidatedPropertiesMember