Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Section S99
-Paragraph 1
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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The net result for the period of deducting operating expenses from operating revenues.

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The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Business Segment Information (Reportable Segments) (Details) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Sep. 30, 2014 USD ($)	Jun. 30, 2014 USD ($)	Mar. 31, 2014 USD ($)	Dec. 31, 2015 USD ($) segments	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments (in segments) \| segments									3
Summarized financial information of the reportable segments
Sales to external customers	$ 1,287,700	$ 1,096,500	$ 1,162,200	$ 1,014,600	$ 1,381,400	$ 1,204,000	$ 1,224,400	$ 1,068,100	$ 4,561,030	$ 4,877,885	$ 4,954,619
Intersegment sales									0	0	0
Segment operating income									525,568	789,832	760,283
Depreciation and amortization									127,087	110,277	106,392
Identifiable assets	5,103,850				4,968,020				5,103,850	4,968,020	5,036,733
Capital expenditures									181,861	132,619	139,090
Subtotal—Reportable Segments
Summarized financial information of the reportable segments
Sales to external customers									4,561,030	4,877,885	4,954,619
Intersegment sales									96,361	108,372	109,876
Segment operating income									593,553	877,036	847,984
Depreciation and amortization									117,519	101,223	97,206
Identifiable assets	4,742,756				4,493,583				4,742,756	4,493,583	4,609,224
Capital expenditures									171,511	121,768	133,029
EPD
Summarized financial information of the reportable segments
Sales to external customers									2,213,048	2,507,707	2,594,735
Intersegment sales									46,948	56,940	55,635
Segment operating income									328,952	447,183	445,241
Depreciation and amortization									50,289	51,047	48,463
Identifiable assets	2,295,209				2,383,734				2,295,209	2,383,734	2,390,626
Capital expenditures									88,496	69,107	77,900
IPD
Summarized financial information of the reportable segments
Sales to external customers									937,756	760,924	752,385
Intersegment sales									44,137	44,958	46,028
Segment operating income									30,194	107,008	94,776
Depreciation and amortization									36,826	14,718	12,153
Identifiable assets	1,070,412				642,093				1,070,412	642,093	698,513
Capital expenditures									19,446	15,165	14,924
FCD
Summarized financial information of the reportable segments
Sales to external customers									1,410,226	1,609,254	1,607,499
Intersegment sales									5,276	6,474	8,213
Segment operating income									234,407	322,845	307,967
Depreciation and amortization									30,404	35,458	36,590
Identifiable assets	1,377,135				1,467,756				1,377,135	1,467,756	1,520,085
Capital expenditures									63,569	37,496	40,205
Eliminations and All Other
Summarized financial information of the reportable segments
Sales to external customers									0	0	0
Intersegment sales									(96,361)	(108,372)	(109,876)
Segment operating income									(67,985)	(87,204)	(87,701)
Depreciation and amortization									9,568	9,054	9,186
Identifiable assets	$ 361,094				$ 474,437				361,094	474,437	427,509
Capital expenditures									$ 10,350	$ 10,851	$ 6,061