Subsequent Event	9 Months Ended
Sep. 30, 2021
Subsequent Events [Abstract]
Subsequent Event	Subsequent Event On October 4, 2021, we reached an agreement to sell our Brazilian operations, Argo Seguros Brasil S.A. (“Argo Brazil”), to Spice Private Equity Ltd., an investment company focused on global private equity investments, for a purchase price of 160 million Brazilian Reais (approximately $29.8 million), subject to the terms and conditions set forth in the purchase agreement. Argo Brazil is one of the units within our International Operations reporting segment. The transaction is subject to regulatory and anti-trust approval and is expected to close in the fourth quarter of 2021. As of the date of the financial statements included in this Quarterly Report on Form 10-Q we are unable to reasonably estimate the gain/loss that will result from this transaction.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

Name:	us-gaap_SubsequentEventsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration