|9 Months Ended|
Sep. 30, 2021
|Debt Disclosure [Abstract]|
|Schedule of Principal Payments on Outstanding Balances of Long-term Debt||
Principal payments on outstanding balances of long-term debt as of September 30, 2021 were as follows:
Tabular disclosure of maturity and sinking fund requirement for long-term debt.
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef