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.

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Name:	us-gaap_GoodwillImpairmentLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Goodwill and Other Intangible Assets - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2020	Mar. 29, 2020	Sep. 27, 2020
Goodwill [Line Items]
Goodwill, impairment loss			$ 93,929
Dorney Park
Goodwill [Line Items]
Goodwill, impairment loss	$ 2,300	$ 6,800
Schlitterbahn
Goodwill [Line Items]
Goodwill, impairment loss	11,300	73,600
Schlitterbahn \| Trade names
Goodwill [Line Items]
Impairment of intangible assets	$ 2,200	$ 7,900