Business Acquisitions and Investments - Assets and Liabilities Acquired (Details) (USD $) In Thousands, unless otherwise specified			0 Months Ended
Aug. 30, 2014	Nov. 30, 2013	Dec. 16, 2013 Air Filtrations Segment of General Electric [Member]	May 01, 2014 Stanadyne [Member]
Business Acquisition [Line Items]
Accounts receivable			$ 34,453	$ 19,548
Inventories			41,884	7,367
Other current assets			837	4,121
Property, plant and equipment			22,903	10,176
Goodwill	511,212	241,299	74,324	194,618
Intangible assets			133,020	146,430
Total assets acquired			307,421	382,260
Current liabilities				8,476
Other noncurrent liabilities				2,000
Deferred income taxes				44,065
Total liabilities			47,109
Net assets acquired			260,312	327,719
Cash acquired from acquisition			$ 3,446	$ 0

Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Asset Including Goodwill

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Amount of other assets expected to be realized or consumed before 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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Amount of liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

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Amount of deferred tax liability attributable to taxable temporary differences due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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The amount of inventory recognized as of the acquisition date.

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Amount of liabilities assumed at the acquisition date.

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Amount of other liabilities due after one year or the normal operating cycle, if longer, assumed at 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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- Definition

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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-Publisher FASB

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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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