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Acquisition of Franchisee - Additional Information (Detail) - USD ($) $ in Thousands	Jun. 27, 2016	Jul. 01, 2017	Dec. 31, 2016
Business Acquisition
Business acquisition, purchase price allocation, goodwill		$ 167,912	$ 166,138
Weight Watchers of Greater Miami, Inc.
Business Acquisition
Business acquisition, purchase price allocation, net purchase price	$ 3,250
Business acquisition, net purchase price	2,898
Business acquisition, cash acquired	300
Business acquisition, assumed net liabilities	52
Business acquisition, purchase price allocation, goodwill	2,945
Customer Relationships | Weight Watchers of Greater Miami, Inc.
Business Acquisition
Business acquisition, purchase price allocation, finite lived intangible assets	191
Franchise Rights | Weight Watchers of Greater Miami, Inc.
Business Acquisition
Business acquisition, purchase price allocation, indefinite lived intangible assets	$ 114

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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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The amount of identifiable intangible assets recognized as of the acquisition date.

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