Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 segments	Sep. 30, 2013
Segment Reporting Information [Line Items]
Number of reportable segments			4
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	$ 2,092,467	$ 1,940,211	$ 6,024,852	$ 5,636,599
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract]
Interest expense, net	31,239	30,236	95,871	90,752
Earnings before provision for income taxes and discontinued operations	328,697	317,670	893,980	843,775
Provision for income taxes	95,872	91,435	267,388	192,269
Earnings from continuing operations	232,825	226,235	626,592	651,506
Energy Segment [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	507,334	467,688	1,467,123	1,396,273
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract]
Earnings before provision for income taxes and discontinued operations	122,738	119,086	356,697	347,456
Engineered Systems Segment [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	695,244	642,205	2,043,979	1,886,956
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract]
Earnings before provision for income taxes and discontinued operations	119,316	111,850	324,058	297,937
Fluids Segment [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	361,797	309,241	1,053,081	893,016
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract]
Earnings before provision for income taxes and discontinued operations	67,559	63,056	188,613	169,425
Refrigeration and Food Equipment Segment [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	528,807	521,322	1,462,657	1,461,364
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract]
Earnings before provision for income taxes and discontinued operations	78,012	86,446	207,800	220,733
Intersegment Elimination [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	(715)	(245)	(1,988)	(1,010)
Total segments [Member]
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract]
Earnings before provision for income taxes and discontinued operations	387,625	380,438	1,077,168	1,035,551
Corporate expense / other [Member]
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract]
Earnings before provision for income taxes and discontinued operations	$ (27,689)	$ (32,532)	$ (87,317)	$ (101,024)