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Debt - Mortgage Notes Payable - Summary of Mortgage Notes Payable Activity (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Debt Instrument [Line Items] |  |  |
Mortgage notes payable, net beginning balance | $ 1,941,610 | $ 2,385,470 |
Proceeds | 519,204 | 295,771 | $ 96,935
Lump sum payoffs | (160,522) | (743,021) | (1,347,939)
Scheduled principal repayments | (7,759) | (6,808) |
Amortization of premiums/ discounts | 2,234 | 8,618 | 20,144
Amortization of deferred financing costs, net | (877) | 1,580 |
Mortgage notes payable, net ending balance | 2,293,890 | 1,941,610 | 2,385,470
Fixed Rate Debt [Member] | Secured – Conventional [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Mortgage notes payable, net beginning balance | 1,574,699 | 1,885,407 |
Proceeds | 495,000 | 288,120 |
Lump sum payoffs | (160,522) | (584,536) |
Scheduled principal repayments | (7,759) | (6,308) |
Amortization of premiums/ discounts | 988 | (7,999) |
Amortization of deferred financing costs, net | (1,315) | 15 |
Mortgage notes payable, net ending balance | 1,901,091 | 1,574,699 | 1,885,407
Floating Rate Debt [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Mortgage notes payable, net beginning balance | 366,911 | 500,063 |
Proceeds | 24,204 | 7,651 |
Lump sum payoffs |  | (158,485) |
Scheduled principal repayments |  | (500) |
Amortization of premiums/ discounts | 1,246 | 16,617 |
Amortization of deferred financing costs, net | 438 | 1,565 |
Mortgage notes payable, net ending balance | 392,799 | 366,911 | 500,063
Floating Rate Debt [Member] | Secured – Conventional [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Mortgage notes payable, net beginning balance | 7,050 | 6,357 |
Proceeds | 24,204 | 7,651 |
Lump sum payoffs |  | (5,920) |
Scheduled principal repayments |  | (500) |
Amortization of deferred financing costs, net | 240 | (538) |
Mortgage notes payable, net ending balance | 31,494 | 7,050 | 6,357
Floating Rate Debt [Member] | Secured – Tax Exempt [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Mortgage notes payable, net beginning balance | 359,861 | 493,706 |
Lump sum payoffs |  | (152,565) |
Amortization of premiums/ discounts | 1,246 | 16,617 |
Amortization of deferred financing costs, net | 198 | 2,103 |
Mortgage notes payable, net ending balance | $ 361,305 | $ 359,861 | $ 493,706

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- Definition Amount of amortization of other deferred financing costs net associated with mortgage notes payable, net. + References No definition available. + Details
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- Definition The component of interest expense representing the noncash expenses charged against earnings in the period to amortize debt discount and premium associated with the mortgage notes payable during the period. + References No definition available. + Details
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- Definition The cash outflow from the lump sum payment of collateralized debt obligations (backed by pledge, mortgage or other lien in the entity's assets). + References No definition available. + Details
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- Definition The cash inflow from borrowings supported by a written promise to pay an obligation that is collateralized (backed by pledge, mortgage or other lien in the entity's assets). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585 + Details
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- Definition Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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