Subsequent Events (Details) - Subsequent Event - Pension Benefits $ in Millions	1 Months Ended
Jul. 31, 2020 USD ($)
Subsequent Events
Employer contributions	$ 3.7
Settlement loss	$ 0.6

Amount of contribution received by defined benefit plan from employer which increases plan assets.

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Name:	us-gaap_DefinedBenefitPlanContributionsByEmployer
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration