Entity Address Address Line1 Amendment Flag City Area Code Entity Address City Or Town Entity Address Country Current Fiscal Year End Date Document Period End Date Entities [Table] Entity [Domain] Entity Incorporation State Country Code Entity Information Former Legal Or Registered Name Local Phone Number Entity Address Postal Zip Code Entity Address State Or Province Security 12b Title Security 12(b) Title Trading Symbol Security Exchange Name Entity Registrant Name Entity Central Index Key Entity Tax Identification Number Document Fiscal Year Focus Document Fiscal Period Focus Legal Entity [Axis] Document Type Written Communications Soliciting Material Pre-commencement Tender Offer Pre-commencement Issuer Tender Offer Entity File Number Entity Emerging Growth Company Entity Ex Transition Period Document And Entity Information [Line Items] Document And Entity Information [Abstract] MGE [Member]