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Debt - Schedule of Aggregate Maturities of Total Indebtedness (Details) - Mortgages, Senior Notes and Term Loans - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
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Debt Instrument [Line Items] |  |
September 30, 2021 | $ 6,967 |
September 30, 2022 | 7,242 |
September 30, 2023 | 264,206 |
September 30, 2024 | 0 |
September 30, 2025 | 612,676 |
Thereafter | 950,000 |
Carrying Amount | 1,841,091 | $ 1,708,443
Less unamortized deferred financing costs | (13,607) | (12,996)
Total debt net of unamortized deferred financing costs | $ 1,827,484 | $ 1,695,447

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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870 Reference 2: 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(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 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 Reference 4: 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 + Details
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