Segment Information (Details) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) segments	Sep. 30, 2015 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments \| segments			4
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	$ 1,707,763	$ 1,787,582	$ 5,016,381	$ 5,261,711
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract]
Interest expense, net	32,994	31,983	96,865	96,008
Earnings before provision for income taxes and discontinued operations	181,176	245,304	473,299	631,120
Provision for income taxes	51,092	58,821	125,569	171,813
Earnings from continuing operations	130,084	186,483	347,730	459,307
Energy Segment [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	273,248	363,872	815,486	1,160,339
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract]
Earnings before provision for income taxes and discontinued operations	13,279	48,726	24,448	141,940
Engineered Systems Segment [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	570,562	579,396	1,739,989	1,745,683
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract]
Earnings before provision for income taxes and discontinued operations	97,240	102,866	295,022	287,717
Fluids Segment [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	412,822	352,018	1,217,722	1,043,765
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract]
Earnings before provision for income taxes and discontinued operations	66,178	74,911	166,258	199,713
Refrigeration and Food Equipment Segment [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	451,328	492,460	1,243,966	1,312,672
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract]
Earnings before provision for income taxes and discontinued operations	64,111	76,665	165,502	178,547
Intersegment Elimination [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	(197)	(164)	(782)	(748)
Total segments [Member]
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract]
Earnings before provision for income taxes and discontinued operations	240,808	303,168	651,230	807,917
Corporate expense / other [Member]
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract]
Earnings before provision for income taxes and discontinued operations	$ 26,638	$ 25,881	$ 81,066	$ 80,789

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