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v3.19.3.a.u2

Debt - Narrative (Details) $ in Thousands |  | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Jul. 17, 2019 | Feb. 25, 2020 USD ($) | Jan. 31, 2020 | Jun. 30, 2018 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($)
Mortgages and Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  | $ 4,500 | $ 5,805 | $ 5,153 | $ 701
Payment for Debt Extinguishment or Debt Prepayment Cost |  |  |  |  | 2,900 |  |
Proceeds from Notes Payable |  |  |  |  | 2,200 | 118,141 | $ 366,239
Derivative Entered Into, Notional Value |  |  |  |  |  | 381,300 |
Mortgages payable |  |  |  |  |  |  |
Mortgages and Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Net carrying value of real estate collateralizing the mortgages payable |  |  |  |  | 1,400,000 | 2,300,000 |
Repayments of Secured Debt |  |  |  |  | 709,100 | 298,100 |
Derivative, Loss on Derivative |  |  |  |  | 2,900 |  |
Proceeds from Notes Payable |  |  |  |  |  | 118,100 |
Derivative, notional amount |  |  |  |  | 867,600 | 1,300,000 |
Long-term Debt |  |  |  |  | 1,125,777 | 1,838,381 |
Line of credit |  |  |  |  |  |  |
Mortgages and Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Credit facility, maximum borrowing capacity |  |  |  |  | 1,400,000 |  |
Line of credit | Revolving credit facility |  |  |  |  |  |  |
Mortgages and Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Credit facility, maximum borrowing capacity |  |  |  |  | 1,000,000 |  |
Long-term Debt |  |  |  |  | $ 200,000 | 0 |
Debt Instrument, Number Of Term Extension Options |  |  |  |  | 2 |  |
Line of credit | Tranche A-1 Term Loan |  |  |  |  |  |  |
Mortgages and Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Derivative, notional amount |  |  |  |  | $ 100,000 | $ 100,000 |
Debt Instrument, Interest Rate During Period |  |  |  |  | 2.12% | 2.12% |
Credit facility, maximum borrowing capacity |  |  |  |  | $ 200,000 |  |
Line of credit | Tranche A-2 Term Loan |  |  |  |  |  |  |
Mortgages and Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Derivative, notional amount |  |  |  |  | $ 137,600 |  |
Debt Instrument, Interest Rate During Period |  |  |  |  | 2.59% |  |
Credit facility, maximum borrowing capacity |  |  |  |  | $ 200,000 |  |
London Interbank Offered Rate (LIBOR) [Member] | Line of credit | Tranche A-2 Term Loan |  |  |  |  |  |  |
Mortgages and Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate, Reduction | 40.00% |  |  |  |  |  |
Other Expense [Member] |  |  |  |  |  |  |
Mortgages and Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  |  | $ (5,800) |  |
Minimum | London Interbank Offered Rate (LIBOR) [Member] | Line of credit | Revolving credit facility |  |  |  |  |  |  |
Mortgages and Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  | 1.10% |  |
Minimum | London Interbank Offered Rate (LIBOR) [Member] | Line of credit | Tranche A-1 Term Loan |  |  |  |  |  |  |
Mortgages and Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  | 1.20% |  |
Minimum | London Interbank Offered Rate (LIBOR) [Member] | Line of credit | Tranche A-2 Term Loan |  |  |  |  |  |  |
Mortgages and Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  | 1.15% |  |
Maximum | London Interbank Offered Rate (LIBOR) [Member] | Line of credit | Revolving credit facility |  |  |  |  |  |  |
Mortgages and Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  | 1.50% |  |
Maximum | London Interbank Offered Rate (LIBOR) [Member] | Line of credit | Tranche A-1 Term Loan |  |  |  |  |  |  |
Mortgages and Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  | 1.70% |  |
Maximum | London Interbank Offered Rate (LIBOR) [Member] | Line of credit | Tranche A-2 Term Loan |  |  |  |  |  |  |
Mortgages and Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  | 1.70% |  |
Subsequent Event [Member] | Minimum | London Interbank Offered Rate (LIBOR) [Member] | Line of credit | Revolving credit facility |  |  |  |  |  |  |
Mortgages and Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  | 1.05% |  |  |  |
Subsequent Event [Member] | Maximum | London Interbank Offered Rate (LIBOR) [Member] | Line of credit | Revolving credit facility |  |  |  |  |  |  |
Mortgages and Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  | 1.50% |  |  |  |
4747 Bethesda Avenue [Member] | Subsequent Event [Member] | Mortgages payable |  |  |  |  |  |  |
Mortgages and Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Proceeds from Notes Payable |  | $ 175,000 |  |  |  |  |
1730 M Street [Member] | Mortgages payable |  |  |  |  |  |  |
Mortgages and Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Proceeds from Notes Payable |  |  |  |  |  | $ 47,500 |
Central Place Tower [Member] | Mortgages payable |  |  |  |  |  |  |
Mortgages and Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Derivative, notional amount |  |  |  |  | $ 220,000 |  |

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