Summary of Significant Accounting Policies - Government and Commercial Receivables (Details) |
9 Months Ended |
|---|---|
Sep. 30, 2021 | |
| Accounting Policies [Abstract] | |
| Financing receivable, non-accrual period | 90 days |
| Reasonable forecast period | 2 years |
| X | ||||||||||
- Definition Financing Receivable, Allowance for Credit Loss, Estimate Period No definition available.
|
| X | ||||||||||
- Definition Threshold period past due for delinquent or nonaccrual of financing receivable. No definition available.
|
| X | ||||||||||
- References No definition available.
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