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Subsequent Events - Unaudited Pro Forma Condensed Consolidated Statement of Operations (Parenthetical) (Detail)	Mar. 31, 2016	Dec. 31, 2015
Less: Natural Habitat Historical Financial Statements
Condensed Financial Statements, Captions [Line Items]
Percentage of noncontrolling interest in subsidiaries	51.40%	51.40%

X

- 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.

+ References

No definition available.

+ Details

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: