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Leases - Narrative (Details) - USD ($) $ in Millions	Mar. 31, 2020	Jan. 01, 2020
Leases [Abstract]
Prepaid lease payments and lease incentives	$ 5.6	$ 5.5

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- Definition

Prepaid Lease Payment and Lease Incentive

+ References

No definition available.

+ Details

Name:	ird_PrepaidLeasePaymentandLeaseIncentive
Namespace Prefix:	ird_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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- References

No definition available.

+ Details

Name:	us-gaap_LeasesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration