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Goodwill and Intangible Assets - Additional Information (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Goodwill And Intangible Assets [Line Items]
Fair value assets measured on non-recurring basis	$ 1,143,071	$ 967,933
Goodwill	662,396	$ 660,981
Accumulated goodwill impairment losses to date	9,300
Fair Value Measurement Non-Recurring | Level 3
Goodwill And Intangible Assets [Line Items]
Fair value assets measured on non-recurring basis	694,000
Goodwill	662,400
Indefinite-lived intangible assets	$ 31,600

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Goodwill and intangible assets.

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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

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