Commitments and Contingencies - Narrative (Details) $ in Millions	Jan. 31, 2020 USD ($)
City of Joplin Missouri
Other Commitments [Line Items]
Bonds issued	$ 51.4
Building and Building Improvements
Other Commitments [Line Items]
Construction in progress	$ 3.4

The net book value of the asset(s) sold in connection with the sale of the property to another party and lease back to the seller.

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Name:	us-gaap_SaleLeasebackTransactionNetBookValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant