Annual report pursuant to Section 13 and 15(d)

Income Taxes - Additional Information (Details)

v3.20.4
Income Taxes - Additional Information (Details)
12 Months Ended
Dec. 31, 2020
Minimum [Member] | State and Local Jurisdiction [Member]  
Income Tax Examination [Line Items]  
Income tax examinations year under examination 2016
Minimum [Member] | Internal Revenue Service (IRS) [Member]  
Income Tax Examination [Line Items]  
Income tax examinations year under examination 2017
Maximum [Member] | State and Local Jurisdiction [Member]  
Income Tax Examination [Line Items]  
Income tax examinations year under examination 2020
Maximum [Member] | Internal Revenue Service (IRS) [Member]  
Income Tax Examination [Line Items]  
Income tax examinations year under examination 2020