Quarterly report pursuant to Section 13 or 15(d)

Leases (Details 2)

v3.19.1
Leases (Details 2)
$ in Millions
 3 Months Ended
Mar. 31, 2019
USD ($)
Lease
Land  
Lessee, Lease, Description [Line Items]  
Lessee right-of-use asset $ 68.1
Land | Minimum  
Lessee, Lease, Description [Line Items]  
Remaining term of contract 30 years
Land | Maximum  
Lessee, Lease, Description [Line Items]  
Remaining term of contract 97 years
Vehicles and Office Equipment  
Lessee, Lease, Description [Line Items]  
Lessee right-of-use asset $ 1.2
Washington, DC | Land  
Lessee, Lease, Description [Line Items]  
Number of contracts | Lease 2
Remaining term of contract 80 years
Lessee right-of-use asset $ 10.4
Baltimore, Maryland | Land  
Lessee, Lease, Description [Line Items]  
Renewal term 49 years
Remaining term of contract 30 years
Lessee right-of-use asset $ 6.5
Stevens Investors, LLC | Washington, DC | Land  
Lessee, Lease, Description [Line Items]  
Remaining term of contract 97 years
Lessee right-of-use asset $ 37.8
M Square Associates, LLC | College Park, Maryland | Land  
Lessee, Lease, Description [Line Items]  
Number of contracts | Lease 4
Lessee right-of-use asset $ 6.7
M Square Associates, LLC | College Park, Maryland | Land | Minimum  
Lessee, Lease, Description [Line Items]  
Remaining term of contract 64 years
M Square Associates, LLC | College Park, Maryland | Land | Maximum  
Lessee, Lease, Description [Line Items]  
Remaining term of contract 75 years
LW Redstone Company, LLC | Huntsville, Alabama | Land  
Lessee, Lease, Description [Line Items]  
Renewal term 25 years
Number of contracts | Lease 9
Lessee right-of-use asset $ 4.3
LW Redstone Company, LLC | Huntsville, Alabama | Land | Minimum  
Lessee, Lease, Description [Line Items]  
Remaining term of contract 44 years
LW Redstone Company, LLC | Huntsville, Alabama | Land | Maximum  
Lessee, Lease, Description [Line Items]  
Remaining term of contract 50 years
Fort Meade/BW Corridor | Land  
Lessee, Lease, Description [Line Items]  
Number of contracts | Lease 2
Remaining term of contract 49 years
Lessee right-of-use asset $ 2.3