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Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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The amount of inventory recognized as of the acquisition date.

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The amount of property, plant, and equipment recognized as of the acquisition date.

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Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

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The cash inflow associated with the acquisition of business during the period (for example, cash that was held by the acquired business).

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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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Summary of Purchase Price Allocation (Detail) (USD $) In Thousands, unless otherwise specified			9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014 Global Thermoelectric Inc	Sep. 30, 2014 Order backlog Global Thermoelectric Inc	Sep. 30, 2014 Customer Relationships Global Thermoelectric Inc	Sep. 30, 2014 Technology Global Thermoelectric Inc	Sep. 30, 2014 Trade Names Global Thermoelectric Inc
Business Acquisition [Line Items]
Accounts receivable			$ 10,200
Inventory			6,487
Deferred income tax assets, net			3,499
Intangible assets				815	5,524	2,807	725
Prepaid expenses and other assets			258
Property and equipment			716
Goodwill	30,264	25,809	6,601
Assumed liabilities			(6,530)
Net assets acquired			31,102
Cash acquired on acquisition			3,061
Purchase price			$ 34,163