Secured Notes Payable and Revolving Credit Facility, Net - Schedule of Secured Notes Payable and Revolving Credit Facility (Details) - USD ($) | 6 Months Ended | |
Jun. 30, 2018 | Dec. 31, 2017 |
Debt Instrument [Line Items] | | |
Principal Balance | $ 4,140,329,000 | $ 4,152,308,000 |
Unamortized loan premium, net | 4,089,000 | 4,191,000 |
Deferred loan costs, net | (37,923,000) | (39,109,000) |
Total Consolidated Debt, Net | 4,106,495,000 | 4,117,390,000 |
Revolving Credit Facility With Maturity Date of August 21, 2020 | | |
Debt Instrument [Line Items] | | |
Maximum borrowing capacity | $ 400,000,000 | |
Revolving Credit Facility With Maturity Date of August 21, 2020 | Minimum | | |
Debt Instrument [Line Items] | | |
Unused commitment fees (as a percent) | 0.15% | |
Revolving Credit Facility With Maturity Date of August 21, 2020 | Maximum | | |
Debt Instrument [Line Items] | | |
Unused commitment fees (as a percent) | 0.20% | |
Secured Debt | LIBOR | Minimum | | |
Debt Instrument [Line Items] | | |
Basis Spread on Variable Rate | 0.00% | |
Secured Debt | Term Loan With Maturity Date of June 1, 2038 | | |
Debt Instrument [Line Items] | | |
Fixed Rate Debt Amortization Period | 30 years | |
Wholly Owned Subsidiaries | | |
Debt Instrument [Line Items] | | |
Principal Balance | $ 3,160,329,000 | 3,172,308,000 |
Wholly Owned Subsidiaries | Secured Debt | Term Loan With Effective Annual Fixed Interest Rate At 4.00% | | |
Debt Instrument [Line Items] | | |
Principal Balance | 0 | 146,974,000 |
Wholly Owned Subsidiaries | Secured Debt | Term Loan With Effective Annual Fixed Interest Rate At 3.85% | | |
Debt Instrument [Line Items] | | |
Principal Balance | $ 0 | 280,721,000 |
Wholly Owned Subsidiaries | Secured Debt | Fannie Mae Loan With Maturity Date of October 1, 2019 | | |
Debt Instrument [Line Items] | | |
Maturity Date | Oct. 1, 2019 | |
Principal Balance | $ 145,000,000 | 145,000,000 |
Variable Interest Rate | LIBOR + 1.25% | |
Wholly Owned Subsidiaries | Secured Debt | Fannie Mae Loan With Maturity Date of October 1, 2019 | LIBOR | | |
Debt Instrument [Line Items] | | |
Basis Spread on Variable Rate | 1.25% | |
Wholly Owned Subsidiaries | Secured Debt | Term Loan With Effective Annual Fixed Interest Rate At 2.77% | | |
Debt Instrument [Line Items] | | |
Maturity Date | Apr. 15, 2022 | |
Principal Balance | $ 340,000,000 | 340,000,000 |
Variable Interest Rate | LIBOR + 1.40% | |
Fixed Interest Rate | 2.77% | |
Swap Maturity Date | Apr. 1, 2020 | |
Wholly Owned Subsidiaries | Secured Debt | Term Loan With Effective Annual Fixed Interest Rate At 2.77% | LIBOR | | |
Debt Instrument [Line Items] | | |
Basis Spread on Variable Rate | 1.40% | |
Wholly Owned Subsidiaries | Secured Debt | Term Loan With Effective Annual Fixed Interest Rate At 3.06% | | |
Debt Instrument [Line Items] | | |
Maturity Date | Jul. 27, 2022 | |
Principal Balance | $ 180,000,000 | 180,000,000 |
Variable Interest Rate | LIBOR + 1.45% | |
Fixed Interest Rate | 3.06% | |
Swap Maturity Date | Jul. 1, 2020 | |
Wholly Owned Subsidiaries | Secured Debt | Term Loan With Effective Annual Fixed Interest Rate At 3.06% | LIBOR | | |
Debt Instrument [Line Items] | | |
Basis Spread on Variable Rate | 1.45% | |
Wholly Owned Subsidiaries | Secured Debt | Term Loan With Effective Annual Fixed Interest Rate At 2.64% | | |
Debt Instrument [Line Items] | | |
Maturity Date | Nov. 1, 2022 | |
Principal Balance | $ 400,000,000 | 400,000,000 |
Variable Interest Rate | LIBOR + 1.35% | |
Fixed Interest Rate | 2.64% | |
Swap Maturity Date | Nov. 1, 2020 | |
Wholly Owned Subsidiaries | Secured Debt | Term Loan With Effective Annual Fixed Interest Rate At 2.64% | LIBOR | | |
Debt Instrument [Line Items] | | |
Basis Spread on Variable Rate | 1.35% | |
Wholly Owned Subsidiaries | Secured Debt | Term Loan With Effective Annual Fixed Interest Rate At 2.57% | | |
Debt Instrument [Line Items] | | |
Maturity Date | Jun. 23, 2023 | |
Principal Balance | $ 360,000,000 | 360,000,000 |
Variable Interest Rate | LIBOR + 1.55% | |
Fixed Interest Rate | 2.57% | |
Swap Maturity Date | Jul. 1, 2021 | |
Wholly Owned Subsidiaries | Secured Debt | Term Loan With Effective Annual Fixed Interest Rate At 2.57% | LIBOR | | |
Debt Instrument [Line Items] | | |
Basis Spread on Variable Rate | 1.55% | |
Wholly Owned Subsidiaries | Secured Debt | Term Loan With Effective Annual Fixed Interest Rate At 3.62% | | |
Debt Instrument [Line Items] | | |
Maturity Date | Dec. 23, 2023 | |
Principal Balance | $ 220,000,000 | 220,000,000 |
Variable Interest Rate | LIBOR + 1.70% | |
Fixed Interest Rate | 3.62% | |
Swap Maturity Date | Dec. 23, 2021 | |
Wholly Owned Subsidiaries | Secured Debt | Term Loan With Effective Annual Fixed Interest Rate At 3.62% | LIBOR | | |
Debt Instrument [Line Items] | | |
Basis Spread on Variable Rate | 1.70% | |
Wholly Owned Subsidiaries | Secured Debt | Term Loan With Effective Annual Fixed Interest Rate At 3.46% | | |
Debt Instrument [Line Items] | | |
Maturity Date | Jan. 1, 2024 | |
Principal Balance | $ 300,000,000 | 300,000,000 |
Variable Interest Rate | LIBOR + 1.55% | |
Fixed Interest Rate | 3.46% | |
Swap Maturity Date | Jan. 1, 2022 | |
Wholly Owned Subsidiaries | Secured Debt | Term Loan With Effective Annual Fixed Interest Rate At 3.46% | LIBOR | | |
Debt Instrument [Line Items] | | |
Basis Spread on Variable Rate | 1.55% | |
Wholly Owned Subsidiaries | Secured Debt | Term Loan With Effective Annual Fixed Interest Rate At 3.84% | | |
Debt Instrument [Line Items] | | |
Maturity Date | Mar. 3, 2025 | |
Principal Balance | $ 335,000,000 | 0 |
Variable Interest Rate | LIBOR + 1.30% | |
Fixed Interest Rate | 3.84% | |
Swap Maturity Date | Mar. 1, 2023 | |
Wholly Owned Subsidiaries | Secured Debt | Term Loan With Effective Annual Fixed Interest Rate At 3.84% | LIBOR | | |
Debt Instrument [Line Items] | | |
Basis Spread on Variable Rate | 1.30% | |
Wholly Owned Subsidiaries | Secured Debt | Fannie Mae Loan With Maturity Date of April 1, 2025 | | |
Debt Instrument [Line Items] | | |
Maturity Date | Apr. 1, 2025 | |
Principal Balance | $ 102,400,000 | 102,400,000 |
Variable Interest Rate | LIBOR + 1.25% | |
Fixed Interest Rate | 2.84% | |
Swap Maturity Date | Mar. 1, 2020 | |
Wholly Owned Subsidiaries | Secured Debt | Fannie Mae Loan With Maturity Date of April 1, 2025 | LIBOR | | |
Debt Instrument [Line Items] | | |
Basis Spread on Variable Rate | 1.25% | |
Wholly Owned Subsidiaries | Secured Debt | Fannie Mae Loans With Maturity Date of December 1, 2025 | | |
Debt Instrument [Line Items] | | |
Maturity Date | Dec. 1, 2025 | |
Principal Balance | $ 115,000,000 | 115,000,000 |
Variable Interest Rate | LIBOR + 1.25% | |
Fixed Interest Rate | 2.76% | |
Swap Maturity Date | Dec. 1, 2020 | |
Wholly Owned Subsidiaries | Secured Debt | Fannie Mae Loans With Maturity Date of December 1, 2025 | LIBOR | | |
Debt Instrument [Line Items] | | |
Basis Spread on Variable Rate | 1.25% | |
Wholly Owned Subsidiaries | Secured Debt | Fannie Mae Loans With Maturity Date of June 1, 2027 | | |
Debt Instrument [Line Items] | | |
Maturity Date | Jun. 1, 2027 | |
Principal Balance | $ 550,000,000 | 550,000,000 |
Variable Interest Rate | LIBOR + 1.37% | |
Fixed Interest Rate | 3.16% | |
Swap Maturity Date | Jun. 1, 2022 | |
Wholly Owned Subsidiaries | Secured Debt | Fannie Mae Loans With Maturity Date of June 1, 2027 | LIBOR | | |
Debt Instrument [Line Items] | | |
Basis Spread on Variable Rate | 1.37% | |
Wholly Owned Subsidiaries | Secured Debt | Term Loan With Maturity Date of June 1, 2038 | | |
Debt Instrument [Line Items] | | |
Maturity Date | Jun. 1, 2038 | |
Principal Balance | $ 31,929,000 | 32,213,000 |
Fixed Interest Rate | 4.55% | |
Wholly Owned Subsidiaries | Line of Credit | Revolving Credit Facility With Maturity Date of August 21, 2020 | | |
Debt Instrument [Line Items] | | |
Maturity Date | Aug. 21, 2020 | |
Principal Balance | $ 81,000,000 | 0 |
Variable Interest Rate | LIBOR + 1.40% | |
Wholly Owned Subsidiaries | Line of Credit | Revolving Credit Facility With Maturity Date of August 21, 2020 | LIBOR | | |
Debt Instrument [Line Items] | | |
Basis Spread on Variable Rate | 1.40% | |
Consolidated JV | Secured Debt | Term Loan With Maturity Date of February 28, 2023 | | |
Debt Instrument [Line Items] | | |
Maturity Date | Feb. 28, 2023 | |
Principal Balance | $ 580,000,000 | 580,000,000 |
Variable Interest Rate | LIBOR + 1.40% | |
Fixed Interest Rate | 2.37% | |
Swap Maturity Date | Mar. 1, 2021 | |
Consolidated JV | Secured Debt | Term Loan With Maturity Date of February 28, 2023 | LIBOR | | |
Debt Instrument [Line Items] | | |
Basis Spread on Variable Rate | 1.40% | |
Consolidated JV | Secured Debt | Term Loan With Maturity Date of December 19, 2024 | | |
Debt Instrument [Line Items] | | |
Maturity Date | Dec. 19, 2024 | |
Principal Balance | $ 400,000,000 | $ 400,000,000 |
Variable Interest Rate | LIBOR + 1.30% | |
Fixed Interest Rate | 3.47% | |
Swap Maturity Date | Jan. 1, 2023 | |
Consolidated JV | Secured Debt | Term Loan With Maturity Date of December 19, 2024 | LIBOR | | |
Debt Instrument [Line Items] | | |
Basis Spread on Variable Rate | 1.30% | |