Other Assets (Details)	9 Months Ended	12 Months Ended
Sep. 30, 2020 USD ($)	Dec. 31, 2020 USD ($) Reportingunit
Goodwill [Line Items]
Goodwill, impairment loss \| $	$ 132,128,000
Accumulated Impairment Losses \| Natural Disasters and Other Casualty Events [Member]
Goodwill [Line Items]
Goodwill, impairment loss \| $		$ 132,200
Accumulated Impairment Losses \| Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] \| Natural Disasters and Other Casualty Events [Member]
Goodwill [Line Items]
Number of reporting units \| Reportingunit		269
Fair Value lower than carrying value \| Reportingunit		87

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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