Segment Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018 USD ($) segments	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)
Segment Reporting Information [Line Items]
SpinOffCostsIncurredToDate	$ 34,638		$ 46,384	$ 0
Number of reportable segments | segments	3
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	$ 1,798,094	$ 1,737,371	3,435,765	3,320,581
Interest Expense	32,125	36,854	67,765	73,213
Interest Income	(2,563)	(2,335)	(4,620)	(4,910)
Earnings before provision for income taxes	211,437	198,060	345,687	404,935
Provision for income taxes	44,981	55,585	69,822	107,372
Earnings from continuing operations	166,456	142,475	275,865	297,563
Engineered Systems Segment [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	702,989	678,285	1,374,615	1,307,157
Earnings before provision for income taxes	126,649	110,103	228,715	287,310
Fluids Segment [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	693,666	633,252	1,321,764	1,230,897
Earnings before provision for income taxes	93,028	91,465	160,376	158,637
Refrigeration and Food Equipment Segment [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	401,766	426,304	740,001	783,138
Earnings before provision for income taxes	51,372	65,829	80,554	99,391
Intersegment Eliminations [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	(327)	(470)	(615)	(611)
Total segments [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Earnings before provision for income taxes	271,049	267,397	469,645	545,338
Corporate expense / other [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Earnings before provision for income taxes	$ 30,050	$ 34,818	$ 60,813	$ 72,100