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Debt - Notes - Summary of Notes Activity (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Debt Instrument [Line Items] |  |  |
Notes, net beginning balance | $ 5,933,286 | $ 5,038,812 |
Proceeds | 1,194,468 | 896,294 | $ 692,466
Lump sum payoffs | (1,050,000) |  | (497,975)
Realized/unrealized (gain) loss on derivative instruments | 2,277 | (680) | (3,454)
Amortization of premiums/ discounts | 3,162 | 2,637 | 2,364
Amortization of deferred financing costs, net | (5,680) | (3,777) |
Notes, net ending balance | 6,077,513 | 5,933,286 | 5,038,812
Fixed Rate Debt [Member] | Unsecured – Public [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Notes, net beginning balance | 5,485,884 | 4,591,373 |
Proceeds | 1,194,468 | 896,294 |
Lump sum payoffs | (600,000) |  |
Amortization of premiums/ discounts | 3,117 | 2,547 |
Amortization of deferred financing costs, net | (5,956) | (4,330) |
Notes, net ending balance | 6,077,513 | 5,485,884 | 4,591,373
Floating Rate Debt [Member] | Unsecured – Public [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Notes, net beginning balance | 447,402 | 447,439 |
Lump sum payoffs | (450,000) |  |
Realized/unrealized (gain) loss on derivative instruments | 2,277 | (680) |
Amortization of premiums/ discounts | 45 | 90 |
Amortization of deferred financing costs, net | $ 276 | 553 |
Notes, net ending balance |  | $ 447,402 | $ 447,439

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- Definition Amount of amortization of other deferred financing costs associated with 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 unsecured notes during the period. + References No definition available. + Details
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- Definition The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in unsecured notes for the period. + References No definition available. + Details
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- Definition Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer. + 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=119400593&loc=d3e572229-122910 Reference 2: 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=6877327&loc=d3e13212-122682 Reference 3: 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=6876686&loc=d3e534808-122878 + Details
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- Definition The cash inflow from borrowings supported by a written promise to pay an obligation that is uncollateralized (where debt is not backed by the pledge of collateral). + 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=118932676&loc=d3e3255-108585 + Details
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- Definition The cash outflow to repay long-term debt that is not secured by collateral. Excludes repayments of tax exempt unsecured debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 + Details
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