Fair Value Measurements - Goodwill and Asset Impairment (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Operating lease right-of-use assets	$ 3,300		$ 75,600
Asset impairment	8,213	$ 2,094	96,729	$ 6,254
Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property, plant and equipment and leasehold intangibles, net	4,900	800	19,600	2,000
Operating lease right-of-use assets	3,300	0	75,600	0
Investment in unconsolidated ventures	0	0	1,500	0
Assets held for sale	0	1,300	0	1,300
Other assets, net	0	0	0	3,000
Asset impairment	$ 8,200	$ 2,100	$ 96,700	$ 6,300

Operating Lease, Right Of Use Assets

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- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.

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The charge against earnings resulting from the write down of long lived assets other than goodwill due to the difference between the carrying value and lower fair value.

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The charge against earnings resulting from the aggregate write down of tangible assets from their carrying value to their fair value.

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