Commitments and Contingencies (Cost/Income Asbestos Related Claims after Recoveries) (Details) - Asbestos [Member] - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Continuing operations	$ 15.6	$ (1.8)
Discontinued operations	(4.9)	(3.0)
Total	$ 10.7	$ (4.8)

Discontinued Operations Costs Income Asbestos Related Settlement And Defense

No definition available.

Name:	ird_DiscontinuedOperationsCostsIncomeAsbestosRelatedSettlementAndDefense
Namespace Prefix:	ird_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration