Supplemental Guarantor Information (Details Textual) - USD ($) $ in Millions	9 Months Ended
Sep. 30, 2021	Dec. 31, 2020
Guarantor Obligations [Line Items]
Maximum percentage of consolidated net worth of guarantor for suspension of guarantee	5.00%
Maximum aggregate percentage of consolidated net worth of all guarantors for suspension of guarantee	10.00%
Maximum aggregate percentage of consolidated net worth of all guarantors for suspension of guarantee to permit cure of default	15.00%
Non-Guarantor Subsidiaries
Guarantor Obligations [Line Items]
Due to non-guarantor subsidiaries	$ 61.0	$ 65.8
All Guarantor Subsidiaries
Guarantor Obligations [Line Items]
Ownership interest	100.00%

Carrying amount as of the balance sheet date of obligations due all related parties.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-Name Accounting Standards Codification
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+ Details