Segment Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2019 USD ($) segments	Sep. 30, 2018 USD ($)
Segment Reporting [Abstract]
Fluids Segment Earnings Excluding Loss on Finder			$ 373,584
Segment Reporting Information [Line Items]
Spin-off Costs Incurred to Date		$ 0		$ 46,384
Number of reportable segments | segments			3
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	$ 1,825,345	1,747,403	$ 5,360,808	5,183,168
Interest Expense	31,410	31,192	94,972	98,957
Interest Income	(1,263)	(2,060)	(3,098)	(6,680)
Earnings before provision for income taxes	257,930	193,016	645,987	538,703
Provision for income taxes	(51,924)	(35,711)	(136,191)	(105,533)
Earnings from continuing operations	206,006	157,305	509,796	433,170
Engineered Systems Segment [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	701,791	671,534	2,085,483	2,046,149
Earnings before provision for income taxes	136,022	108,714	390,866	337,429
Fluids Segment [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	753,046	690,065	2,185,703	2,011,829
Earnings before provision for income taxes	145,502	101,207	326,638	261,583
Refrigeration and Food Equipment Segment [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	370,335	386,214	1,090,452	1,126,215
Earnings before provision for income taxes	35,211	42,434	104,393	122,988
Intersegment Eliminations [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenue	173	(410)	(830)	(1,025)
Total segments [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Earnings before provision for income taxes	316,735	252,355	821,897	722,000
Corporate expense / other [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Earnings before provision for income taxes	$ 28,658	$ 30,207	$ 84,036	$ 91,020