Document and Entity Information Document Information [Table] Class of Stock [Axis] Class of Stock [Domain] Common Class A Common Class A Common Class B Common Class B Entity Addresses, Address Type [Axis] Address Type [Domain] Business Contact [Member] Document Information [Line Items] Document Type Document Registration Statement Document Annual Report Document Period End Date Document Transition Report Document Shell Company Report Entity File Number Entity Registrant Name Entity Address, Country Entity Address, Address Line One Entity Address, Address Line Two Entity Address, City or Town Entity Incorporation, State or Country Code Entity Address, Postal Zip Code Contact Personnel Name Contact Personnel Email Address Title of 12(b) Security Trading Symbol Security Exchange Name Entity Common Stock, Shares Outstanding Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Emerging Growth Company ICFR Auditor Attestation Flag Document Financial Statement Error Correction [Flag] Document Accounting Standard Entity Shell Company Auditor Name Auditor Firm ID Auditor Location Entity Central Index Key Current Fiscal Year End Date Document Fiscal Year Focus Document Fiscal Period Focus Amendment Flag