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 loss from the write-down of an asset representing the 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 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 and Other Intangibles (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jul. 30, 2014
Goodwill
Impairment losses	$ 13,801us-gaap_GoodwillImpairmentLoss	$ (101)us-gaap_GoodwillImpairmentLoss	$ (274,285)us-gaap_GoodwillImpairmentLoss
Currency translation adjustment	(998)us-gaap_GoodwillTranslationAdjustments
Balance at the end of the period	12,803us-gaap_Goodwill
IDS Member
Goodwill
Balance at the beginning of the period				13,801
Balance at the end of the period				13,801
European Operations
Goodwill
Impairment losses	13,801
Currency translation adjustment	(998)
Balance at the end of the period	$ 12,803