Business Acquisitions and Investments - Assets and Liabilities Acquired (Details) (USD $) In Thousands, unless otherwise specified			0 Months Ended
May 31, 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	510,485	241,299	74,324	193,144
Intangible assets			133,020	147,280
Total assets acquired			307,421	381,636
Current liabilities				8,476
Deferred income taxes				45,148
Total liabilities			47,109
Net assets acquired			260,312	328,012
Cash acquired from acquisition			$ 3,446	$ 0

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

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- Definition

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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- Definition

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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- Definition

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

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- Definition

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

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- Definition

The amount of inventory recognized as of the acquisition date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

-Paragraph 1

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Amount of liabilities assumed at the acquisition date.

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

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- Definition

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

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- Definition

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

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- Definition

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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-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

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