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Business Segments and Geographic Information - Schedule of Pre-Tax Income Reconciliation of Segments (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2021 | Mar. 31, 2020
Pre-Tax Income Reconciliation of Segments |  |
Operating income from segments | $ 114,109 | $ 109,944
Unallocated amounts: |  |
General and Administrative Expenses | (48,479) | (53,782)
Net interest expense | (25,642) | (28,742)
Gain (loss) on extinguishment of debt | 3,038 | 1,563
Gain on sales of real estate | 13,329 | 424
Income before income taxes and equity in earnings of affiliates | $ 56,355 | $ 29,407

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- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=117329964&loc=d3e12355-112629 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=117329964&loc=d3e12317-112629 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details
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