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Acquisition of Weilos and Miami Franchise - Additional Information (Detail) - USD ($) $ in Thousands | Jun. 27, 2016 | Mar. 11, 2015 | Oct. 01, 2016 | Jan. 02, 2016
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Business Acquisition |  |  |  |
Goodwill |  |  | $ 167,638 | $ 159,331
Weilos |  |  |  |
Business Acquisition |  |  |  |
Business acquisition, purchase price allocation, net purchase price |  | $ 6,674 |  |
Business acquisition, purchase price allocation, common stock issued |  | 2,810 |  |
Business acquisition, purchase price allocation, restricted stock issued |  | 114 |  |
Business acquisition, net purchase price |  | 2,775 |  |
Business acquisition, purchase price allocation, cash reserves |  | 975 |  |
Goodwill |  | 5,588 |  |
Business acquisition, purchase price allocation, finite lived intangible assets |  | 1,741 |  |
Business acquisition, purchase price allocation, fixed assets |  | 24 |  |
Business acquisition, purchase price allocation, deferred tax liabilities |  | 679 |  |
Restricted shares issued to key employees |  | $ 908 |  |
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 |  |  |
Goodwill | 2,945 |  |  |
Business acquisition, cash reserves | 300 |  |  |
Business acquisition, assumed net liabilities | 52 |  |  |
Weight Watchers of Greater Miami, Inc. | Customer Relationships |  |  |  |
Business Acquisition |  |  |  |
Business acquisition, purchase price allocation, finite lived intangible assets | 191 |  |  |
Weight Watchers of Greater Miami, Inc. | Franchise Rights |  |  |  |
Business Acquisition |  |  |  |
Business acquisition, purchase price allocation, indefinite lived intangible assets | $ 114 |  |  |

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