Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 segments	Jun. 30, 2013
Segment Reporting Information [Line Items]
Number of reportable segments			4
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	$ 2,047,738	$ 1,932,411	$ 3,932,385	$ 3,696,388
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract]
Interest expense, net	31,967	30,232	64,632	60,516
Earnings before provision for income taxes and discontinued operations	314,377	288,319	565,283	526,105
Provision for income taxes	96,934	30,261	171,516	100,834
Earnings from continuing operations	217,443	258,058	393,767	425,271
Energy Segment [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	481,016	465,906	959,789	928,585
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract]
Earnings before provision for income taxes and discontinued operations	114,991	109,662	233,959	228,370
Engineered Systems Segment [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	698,957	639,426	1,348,735	1,244,751
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract]
Earnings before provision for income taxes and discontinued operations	112,422	102,804	204,742	186,087
Fluids Segment [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	346,275	310,137	691,284	583,775
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract]
Earnings before provision for income taxes and discontinued operations	63,112	58,768	121,054	106,369
Refrigeration and Food Equipment Segment [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	522,357	517,574	933,850	940,042
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract]
Earnings before provision for income taxes and discontinued operations	84,926	82,177	129,788	134,287
Intersegment Elimination [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	(867)	(632)	(1,273)	(765)
Total segments [Member]
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract]
Earnings before provision for income taxes and discontinued operations	375,451	353,411	689,543	655,113
Corporate expense / other [Member]
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract]
Earnings before provision for income taxes and discontinued operations	$ 29,107	$ 34,860	$ 59,628	$ 68,492