Acquisition - Narrative (Detail) - ShowingTime.com, Inc. - USD ($) $ in Millions		12 Months Ended
Sep. 30, 2021	Dec. 31, 2021	Dec. 31, 2020
Schedule of Equity Method Investments [Line Items]
Business acquisition, purchase price	$ 511.8
Business acquisition, pro forma revenue, percentage increase (decrease)		1.00%	2.00%

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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