Other Assets (Details) $ in Thousands	3 Months Ended
Mar. 31, 2020 USD ($) Reportingunit	Mar. 31, 2019 USD ($)
Goodwill [Line Items]
Goodwill, impairment loss \| $	$ 132,128	$ 0
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
-Publisher FASB
-Name Accounting Standards Codification
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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
-Publisher FASB
-Name Accounting Standards Codification
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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