Segment Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018 USD ($) segments	Sep. 30, 2017 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($)
Segment Reporting Information [Line Items]
Spin-off Costs Incurred to Date	$ 0		$ 46,384	$ 1,721
Number of reportable segments | segments	3
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenues	$ 1,747,403	$ 1,747,775	5,183,168	5,068,356
Interest Expense	31,192	35,372	98,957	108,585
Interest Income	(2,060)	(1,759)	(6,680)	(6,669)
Earnings before provision for income taxes	193,016	206,776	538,703	611,711
Provision for income taxes	35,711	47,321	105,533	154,693
Earnings from continuing operations	157,305	159,455	433,170	457,018
Engineered Systems Segment [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenues	671,534	670,999	2,046,149	1,978,156
Earnings before provision for income taxes	108,714	102,767	337,429	390,077
Fluids Segment [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenues	690,065	638,068	2,011,829	1,868,965
Earnings before provision for income taxes	101,207	103,052	261,583	261,689
Refrigeration and Food Equipment Segment [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenues	386,214	438,788	1,126,215	1,221,926
Earnings before provision for income taxes	42,434	65,413	122,988	164,804
Intersegment Eliminations [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenues	(410)	(80)	(1,025)	(691)
Total segments [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Earnings before provision for income taxes	252,355	271,232	722,000	816,570
Corporate expense / other [Member]
Reconciliation from Segment Totals to Consolidated [Abstract]
Earnings before provision for income taxes	$ 30,207	$ 30,843	$ 91,020	$ 102,943