Description of the Business	12 Months Ended
Description of the Business	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of the Business	Note 1: Description of the Business Blucora, Inc. (the “Company,” “Blucora,” “we,” “our,” or “us”) operates two primary businesses: the Wealth Management business and the digital Tax Software business. Wealth Management Our Wealth Management business consists of the operations of Avantax Wealth Management and Avantax Planning Partners (collectively, the “Wealth Management business” or the “Wealth Management segment”). Avantax Wealth Management provides tax-focused wealth management solutions for financial professionals, tax professionals, certified public accounting (“CPA”) firms, and their clients. Avantax Wealth Management offers its services through its registered broker-dealer, registered investment advisor (“RIA”), and insurance agency subsidiaries and is a leading U.S. tax-focused independent broker-dealer. Avantax Wealth Management works with a nationwide network of financial professionals that operate as independent contractors. Avantax Wealth Management provides these financial professionals with an integrated platform of technical, practice, compliance, operations, sales, and product support tools that enable them to offer tax-advantaged investing and wealth management services to their clients. Avantax Planning Partners is an in-house/employee-based RIA and wealth management business that partners with CPA firms in order to provide their consumer and small business clients with holistic financial planning and advisory services, as well as retirement plan solutions through Avantax Retirement Plan Services. Avantax Planning Partners formerly operated as Honkamp Krueger Financial Services, Inc. (“HKFS”). We acquired HKFS in July 2020 (the “HKFS Acquisition”) and subsequently rebranded it in order to create tighter brand alignment through one common and recognizable brand. Any reference to Avantax Planning Partners in this Form 10-K is inclusive of HKFS. Tax Software Our Tax Software business consists of the operations of TaxAct, Inc. (“TaxAct,” the “Tax Software business,” or the “Tax Software segment”) and provides digital tax preparation services and ancillary services for consumers, small business owners, and tax professionals through its website www.TaxAct.com and its mobile applications. We referred to this business as the “Tax Preparation business” and “Tax Preparation segment” in previous filings. Our Tax Software segment is highly seasonal, with a significant portion of its annual revenue typically earned in the first four months of the fiscal year. During the third and fourth quarters, the Tax Software segment typically reports losses because revenue from the segment is minimal while core operating expenses continue. Segments We have two reportable segments: (1) the Wealth Management segment and (2) the Tax Software segment. Net capital and regulatory requirements The Avantax Wealth Management broker-dealer subsidiary operates in a highly regulated industry and is subject to various regulatory capital requirements. Failure to meet minimum capital requirements can initiate certain mandatory and possible additional discretionary actions by regulators that, if undertaken, could have substantial monetary and non-monetary impacts to Avantax Wealth Management’s operations. As of December 31, 2021, Avantax Wealth Management met all capital adequacy requirements to which it was subject.