Secured Notes Payable and Revolving Credit Facility, net - Schedule Of Secured Notes Payable and Revolving Credit Facility (Details) - USD ($) $ in Thousands | Feb. 29, 2016 | Mar. 31, 2017 | Dec. 31, 2016 |
Debt Instrument [Line Items] | | | |
Total Debt | | $ 4,427,939 | $ 4,408,083 |
Deferred loan costs, net | | (36,529) | (38,546) |
Total Debt, Net | | $ 4,391,410 | 4,369,537 |
Weighted average remaining life of outstanding term debt (in years) | | 4 years 7 months | |
Debt at fixed interest rate | | $ 4,110,000 | |
Weighted average remaining life of interest rate swaps and fixed rate debt (in years) | | 4 years 9 months | |
Weighted average annual interest rate (as a percent) | | 3.28% | |
Weighted average effective interest rate, including non-cash amortization of deferred loan costs (as a percent) | | 3.43% | |
Accumulated amortization | | $ 17,500 | 15,400 |
Revolving Credit Facility With Maturity Date 8/21/20 [Member] | | | |
Debt Instrument [Line Items] | | | |
Maximum borrowing capacity | | $ 400,000 | |
Revolving Credit Facility With Maturity Date 8/21/20 [Member] | Minimum [Member] | | | |
Debt Instrument [Line Items] | | | |
Unused commitment fees (as a percent) | | 0.15% | |
Revolving Credit Facility With Maturity Date 8/21/20 [Member] | Maximum [Member] | | | |
Debt Instrument [Line Items] | | | |
Unused commitment fees (as a percent) | | 0.20% | |
Effective Fixed Rate Loans [Member] | | | |
Debt Instrument [Line Items] | | | |
Total Debt | | $ 2,985,480 | 2,985,480 |
Aggregate Fixed Rate Loans [Member] | | | |
Debt Instrument [Line Items] | | | |
Total Debt | | $ 1,126,459 | 1,131,603 |
Weighted average remaining period during which interest was fixed (in years) | | 2 years 11 months | |
Variable Rate Loans [Member] | | | |
Debt Instrument [Line Items] | | | |
Total Debt | | $ 316,000 | 291,000 |
Subsidiaries [Member] | | | |
Debt Instrument [Line Items] | | | |
Total Debt | | 3,701,939 | 3,682,083 |
Subsidiaries [Member] | Secured Debt [Member] | Term Loan With Effective Annual Fixed Interest Rate At 3.00% [Member] | | | |
Debt Instrument [Line Items] | | | |
Total Debt | | $ 0 | 1,000 |
Fixed interest rate | | 3.00% | |
Subsidiaries [Member] | Secured Debt [Member] | Term Loan With Effective Annual Fixed Interest Rate At 4.14% [Member] | | | |
Debt Instrument [Line Items] | | | |
Maturity Date | | Aug. 5, 2018 | |
Total Debt | | $ 348,379 | 349,933 |
Fixed interest rate | | 4.14% | |
Subsidiaries [Member] | Secured Debt [Member] | Term Loan With Effective Annual Fixed Interest Rate At 4.00% [Member] | | | |
Debt Instrument [Line Items] | | | |
Maturity Date | | Feb. 1, 2019 | |
Total Debt | | $ 149,188 | 149,911 |
Fixed interest rate | | 4.00% | |
Subsidiaries [Member] | Secured Debt [Member] | Term Loan With Effective Annual Fixed Interest Rate at 3.85% [Member] | | | |
Debt Instrument [Line Items] | | | |
Maturity Date | | Jun. 5, 2019 | |
Total Debt | | $ 284,578 | 285,000 |
Fixed interest rate | | 3.85% | |
Subsidiaries [Member] | Secured Debt [Member] | Fannie Mae Loans, Maturity Date October 1, 2019 [Member] | | | |
Debt Instrument [Line Items] | | | |
Maturity Date | | Oct. 1, 2019 | |
Total Debt | | $ 145,000 | 145,000 |
Variable Interest Rate | | LIBOR + 1.25% | |
Subsidiaries [Member] | Secured Debt [Member] | Fannie Mae Loans, Maturity Date October 1, 2019 [Member] | LIBOR [Member] | | | |
Debt Instrument [Line Items] | | | |
Basis spread | | 1.25% | |
Subsidiaries [Member] | Secured Debt [Member] | Term Loan With Effective Annual Fixed Interest Rate At 4.46% [Member] | | | |
Debt Instrument [Line Items] | | | |
Maturity Date | | Mar. 1, 2020 | |
Total Debt | | $ 344,314 | 345,759 |
Fixed interest rate | | 4.46% | |
Subsidiaries [Member] | Secured Debt [Member] | Entity One Rate Six With Effective Annual Fixed Interest Rate At 3.65% [Member] | | | |
Debt Instrument [Line Items] | | | |
Maturity Date | | Nov. 1, 2020 | |
Total Debt | | $ 388,080 | 388,080 |
Variable Interest Rate | | LIBOR + 1.65% | |
Fixed interest rate | | 3.65% | |
Swap Maturity Date | | Nov. 1, 2017 | |
Subsidiaries [Member] | Secured Debt [Member] | Entity One Rate Six With Effective Annual Fixed Interest Rate At 3.65% [Member] | LIBOR [Member] | | | |
Debt Instrument [Line Items] | | | |
Basis spread | | 1.65% | |
Subsidiaries [Member] | Secured Debt [Member] | Term Loan With Effective Annual Fixed Interest Rate At 2.77% [Member] | | | |
Debt Instrument [Line Items] | | | |
Maturity Date | | Apr. 15, 2022 | |
Total Debt | | $ 340,000 | 340,000 |
Variable Interest Rate | | LIBOR + 1.40% | |
Fixed interest rate | | 2.77% | |
Swap Maturity Date | | Apr. 1, 2020 | |
Subsidiaries [Member] | Secured Debt [Member] | Term Loan With Effective Annual Fixed Interest Rate At 2.77% [Member] | LIBOR [Member] | | | |
Debt Instrument [Line Items] | | | |
Basis spread | | 1.40% | |
Subsidiaries [Member] | Secured Debt [Member] | Term Loan With Effective Annual Fixed Interest Rate At 3.06% [Member] | | | |
Debt Instrument [Line Items] | | | |
Maturity Date | | Jul. 27, 2022 | |
Total Debt | | $ 180,000 | 180,000 |
Variable Interest Rate | | LIBOR + 1.45% | |
Fixed interest rate | | 3.06% | |
Swap Maturity Date | | Jul. 1, 2020 | |
Subsidiaries [Member] | Secured Debt [Member] | Term Loan With Effective Annual Fixed Interest Rate At 3.06% [Member] | LIBOR [Member] | | | |
Debt Instrument [Line Items] | | | |
Basis spread | | 1.45% | |
Subsidiaries [Member] | Secured Debt [Member] | Term Loan With Effective Annual Fixed Interest Rate At 2.64% [Member] | | | |
Debt Instrument [Line Items] | | | |
Maturity Date | | Nov. 1, 2022 | |
Total Debt | | $ 400,000 | 400,000 |
Variable Interest Rate | | LIBOR + 1.35% | |
Fixed interest rate | | 2.64% | |
Swap Maturity Date | | Nov. 1, 2020 | |
Subsidiaries [Member] | Secured Debt [Member] | Term Loan With Effective Annual Fixed Interest Rate At 2.64% [Member] | LIBOR [Member] | | | |
Debt Instrument [Line Items] | | | |
Basis spread | | 1.35% | |
Subsidiaries [Member] | Secured Debt [Member] | Term Loan With Effective Annual Fixed Interest Rate At 2.57% [Member] | | | |
Debt Instrument [Line Items] | | | |
Maturity Date | | Jun. 23, 2023 | |
Total Debt | | $ 360,000 | 360,000 |
Variable Interest Rate | | LIBOR + 1.55% | |
Fixed interest rate | | 2.57% | |
Swap Maturity Date | | Jul. 1, 2021 | |
Subsidiaries [Member] | Secured Debt [Member] | Term Loan With Effective Annual Fixed Interest Rate At 2.57% [Member] | LIBOR [Member] | | | |
Debt Instrument [Line Items] | | | |
Basis spread | | 1.55% | |
Subsidiaries [Member] | Secured Debt [Member] | Term Loan With Effective Annual Fixed Interest Rate At 3.62% [Member] | | | |
Debt Instrument [Line Items] | | | |
Maturity Date | | Dec. 23, 2023 | |
Total Debt | | $ 220,000 | 220,000 |
Variable Interest Rate | | LIBOR + 1.70% | |
Fixed interest rate | | 3.62% | |
Swap Maturity Date | | Dec. 23, 2021 | |
Subsidiaries [Member] | Secured Debt [Member] | Term Loan With Effective Annual Fixed Interest Rate At 3.46% [Member] | | | |
Debt Instrument [Line Items] | | | |
Maturity Date | | Jan. 1, 2024 | |
Total Debt | | $ 300,000 | 300,000 |
Variable Interest Rate | | LIBOR + 1.55% | |
Fixed interest rate | | 3.46% | |
Swap Maturity Date | | Jan. 1, 2022 | |
Subsidiaries [Member] | Secured Debt [Member] | Fannie Mae Loan With Maturity Date Of April 1, 2025 [Member] | | | |
Debt Instrument [Line Items] | | | |
Maturity Date | | Apr. 1, 2025 | |
Total Debt | | $ 102,400 | 102,400 |
Variable Interest Rate | | LIBOR + 1.25% | |
Fixed interest rate | | 2.84% | |
Swap Maturity Date | | Mar. 1, 2020 | |
Subsidiaries [Member] | Secured Debt [Member] | Fannie Mae Loan With Maturity Date Of April 1, 2025 [Member] | LIBOR [Member] | | | |
Debt Instrument [Line Items] | | | |
Basis spread | | 1.25% | |
Subsidiaries [Member] | Secured Debt [Member] | Fannie Mae Loan with Maturity Date of December 1, 2020 [Member] | | | |
Debt Instrument [Line Items] | | | |
Maturity Date | | Dec. 1, 2025 | |
Total Debt | | $ 115,000 | 115,000 |
Variable Interest Rate | | LIBOR + 1.25% | |
Fixed interest rate | | 2.76% | |
Swap Maturity Date | | Dec. 1, 2020 | |
Subsidiaries [Member] | Secured Debt [Member] | Fannie Mae Loan with Maturity Date of December 1, 2020 [Member] | LIBOR [Member] | | | |
Debt Instrument [Line Items] | | | |
Basis spread | | 1.25% | |
Subsidiaries [Member] | Line of Credit [Member] | Revolving Credit Facility With Maturity Date 8/21/20 [Member] | | | |
Debt Instrument [Line Items] | | | |
Maturity Date | | Aug. 21, 2020 | |
Total Debt | | $ 25,000 | 0 |
Variable Interest Rate | | LIBOR + 1.40% | |
Subsidiaries [Member] | Line of Credit [Member] | Revolving Credit Facility With Maturity Date 8/21/20 [Member] | LIBOR [Member] | | | |
Debt Instrument [Line Items] | | | |
Basis spread | 1.40% | 1.40% | |
Consolidated Joint Ventures [Member] | Secured Debt [Member] | Term Loan With Maturity Date 7/21/2019 [Member] | | | |
Debt Instrument [Line Items] | | | |
Maturity Date | | Jul. 21, 2019 | |
Total Debt | | $ 146,000 | 146,000 |
Variable Interest Rate | | LIBOR + 1.55% | |
Consolidated Joint Ventures [Member] | Secured Debt [Member] | Term Loan With Maturity Date 7/21/2019 [Member] | LIBOR [Member] | | | |
Debt Instrument [Line Items] | | | |
Basis spread | | 1.55% | |
Consolidated Joint Ventures [Member] | Secured Debt [Member] | Term Loan with Maturity Date of February 28, 2023 [Member] | | | |
Debt Instrument [Line Items] | | | |
Maturity Date | | Feb. 28, 2023 | |
Total Debt | $ 580,000 | $ 580,000 | $ 580,000 |
Variable Interest Rate | | LIBOR + 1.40% | |
Fixed interest rate | | 2.37% | |
Swap Maturity Date | | Mar. 1, 2021 | |
Consolidated Joint Ventures [Member] | Secured Debt [Member] | Term Loan with Maturity Date of February 28, 2023 [Member] | LIBOR [Member] | | | |
Debt Instrument [Line Items] | | | |
Basis spread | | 1.40% | |
Consolidated Joint Ventures [Member] | Secured Debt [Member] | Term Loan with Maturity Date of February 28, 2023 [Member] | LIBOR [Member] | Minimum [Member] | | | |
Debt Instrument [Line Items] | | | |
Basis spread | | 0.00% | |