Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase (decrease) from foreign currency translation adjustments and purchase accounting adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Goodwill - Changes in Balance of Goodwill (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2011
Goodwill [Line Items]
Balance at the beginning of the year		$ 27,156us-gaap_Goodwill	$ 27,156us-gaap_Goodwill
Goodwill impairment	(6,406)us-gaap_GoodwillImpairmentLoss
Balance at the end of the year		27,156us-gaap_Goodwill	27,156us-gaap_Goodwill
Security Products
Goodwill [Line Items]
Balance at the beginning of the year	13,991
Sale of disposed operations	(14,286)
Changes in currency exchange rates	295
Furniture Components
Goodwill [Line Items]
Balance at the beginning of the year		27,156	27,156	27,156
Balance at the end of the year	27,156	27,156	27,156	27,156
EWI Re, Inc.
Goodwill [Line Items]
Balance at the beginning of the year	6,406
Goodwill impairment	(6,406)
Balance at the end of the year	$ 6,400