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Amount of 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 of liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

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The amount of identifiable intangible assets recognized as of the acquisition date.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

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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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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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Acquisitions - Fair Values of Assets Acquired and Liabilities Assumed at Date of Closing - Emtrol (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Business Acquisition [Line Items]
Goodwill	$ 168,126us-gaap_Goodwill	$ 167,547us-gaap_Goodwill	$ 134,062us-gaap_Goodwill
Emtrol [Member]
Business Acquisition [Line Items]
Current assets	9,922
Property and equipment	125
Goodwill	24,998
Intangible - finite life, net	12,890
Total assets acquired	47,935
Current liabilities assumed	(10,173)
Net assets acquired	$ 37,762