Commitments and Contingencies - Litigation and Loss Contingencies (Details) - USD ($) $ in Millions	Jul. 16, 2019	Dec. 31, 2019	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Refunds issued to ticket buyers	$ 4.0
Loss contingency accrual		$ 14.8	$ 19.2
Estimate of possible loss attributable to potential interest and penalties		$ 1.4	$ 1.2

The amount of estimated penalties and interest accrued as of the balance sheet date arising from income tax examinations.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant