Non-Controlling Interests - Additional Information (Detail) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
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| Noncontrolling Interest [Line Items] | |||
| Payments of dividend, non-controlling interest | $ 486 | $ 150 | |
| Natural Habitat Adventures | |||
| Noncontrolling Interest [Line Items] | |||
| Percentage of noncontrolling interest in subsidiaries | 51.40% | ||
| Payments of dividend, non-controlling interest | $ 1,000 | 300 | $ 0 |
| Non-controlling interest decreased due to payments of dividend | $ 500 | $ 200 | |
| Australian Subsidiary | |||
| Noncontrolling Interest [Line Items] | |||
| Percentage of noncontrolling interest in subsidiaries | 50.01% | ||
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- Definition Decrease in noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition The parent entity's interest in net assets of the subsidiary, expressed as a percentage. No definition available.
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- Definition Amount of cash outflow in the form of ordinary dividends provided by the non-wholly owned subsidiary to noncontrolling interests. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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