Segment Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) segments	Sep. 30, 2014 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segments			4
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	$ 1,787,582	$ 2,009,575	$ 5,261,711	$ 5,774,781
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract]
Interest expense, net	31,983	31,231	96,008	95,847
Earnings before provision for income taxes and discontinued operations	245,304	318,063	631,120	863,220
Provision for income taxes	58,821	92,380	171,813	256,915
Earnings from continuing operations	186,483	225,683	459,307	606,305
Energy Segment [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	363,872	507,334	1,160,339	1,467,123
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract]
Earnings before provision for income taxes and discontinued operations	48,726	122,738	141,940	356,697
Engineered Systems Segment [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	579,396	612,301	1,745,683	1,793,796
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract]
Earnings before provision for income taxes and discontinued operations	102,866	108,800	287,717	293,793
Fluids Segment [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	352,018	361,797	1,043,765	1,053,081
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract]
Earnings before provision for income taxes and discontinued operations	74,911	67,559	199,713	188,613
Refrigeration and Food Equipment Segment [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	492,460	528,807	1,312,672	1,462,657
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract]
Earnings before provision for income taxes and discontinued operations	76,665	78,012	178,547	207,800
Intersegment Elimination [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	(164)	(664)	(748)	(1,876)
Total segments [Member]
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract]
Earnings before provision for income taxes and discontinued operations	303,168	377,109	807,917	1,046,903
Corporate expense / other [Member]
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract]
Earnings before provision for income taxes and discontinued operations	$ 25,881	$ 27,815	$ 80,789	$ 87,836