Commitments and Contingencies	6 Months Ended
Commitments and Contingencies	Jun. 30, 2022
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Certain customers have financed purchases of Company products through arrangements with third-party financing institutions in which the Company is contingently liable for customer debt of $2.3 million and $2.4 million at June 30, 2022 and December 31, 2021, respectively. These arrangements expire at various dates through June 2025. Additionally, the Company is also contingently liable for 1.75% of the unpaid balance, determined as of December 31 of the prior year (or approximately $0.2 million for 2022), on certain past customer equipment purchases that were financed by an outside finance company. The agreements provide that the Company will receive the lender's full security interest in the equipment financed if the Company is required to fulfill its contingent liability under these arrangements. The Company has recorded a liability of $1.0 million and $1.1 million related to these guarantees which were included in "Other current liabilities" in the Consolidated Balance Sheets as of June 30, 2022 and December 31, 2021, respectively. The Company reviews off-balance sheet guarantees individually and at the loss pool level based on one agreement. Prior history is considered in regard to the Company having to perform on any off-balance sheet guarantees, as well as future projections of individual customer credit worthiness including consideration of the implications of COVID-19 in regard to assessing credit losses related to off-balance sheet guarantees. In addition, the Company is contingently liable under letters of credit issued under its $150.0 million revolving credit facility (the "Credit Facility") totaling $2.6 million as of June 30, 2022. The outstanding letters of credit expire at various dates through June 2023. The maximum potential amount of future payments under letters of credit issued under the Credit Facility for which the Company could be liable is $30.0 million as of June 30, 2022. As of June 30, 2022, the Company's foreign subsidiaries are contingently liable for a total of $1.5 million in letters of credit and bank guarantees securing performance and advance payments. The maximum potential amount of future payments under these letters of credit and bank guarantees for which the Company could be liable is $7.2 million as of June 30, 2022. The Company and certain of its former executive officers were named as defendants in a putative shareholder class action lawsuit filed on February 1, 2019, as amended on August 26, 2019, in the United States District Court for the Eastern District of Tennessee. The action is styled City of Taylor General Employees Retirement System v. Astec Industries, Inc., et al., Case No. 1:19-cv-24-CEA-CHS. The complaint generally alleges that the defendants violated the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and Rule 10b-5 promulgated thereunder by making allegedly false and misleading statements and that the individual defendants were control persons under Section 20(a) of the Exchange Act. The complaint is filed on behalf of shareholders who purchased stock of the Company between July 26, 2016 and October 22, 2018 and seeks monetary damages on behalf of the purported class. On October 25, 2019, the defendants filed a Motion to Dismiss. On February 19, 2021, the Motion to Dismiss was granted with prejudice and judgment was entered for the defendants. On March 19, 2021, plaintiff filed a Motion to Alter or Amend the Judgment and For Leave to File the Proposed Amended Complaint, which was denied on May 5, 2021. Plaintiff appealed the Motion to Dismiss and denial of its Motion to Alter or Amend the Judgment and For Leave to File the Proposed Amended Complaint to the United States Court of Appeals for the Sixth Circuit. On March 31, 2022, the United States Court of Appeals for the Sixth Circuit issued an opinion reversing the dismissal of the Company and one former executive officer, affirming the dismissal of certain other former executive officers and remanding the action to the United States District Court for the Eastern District of Tennessee for proceedings consistent with the opinion. The Company's GEFCO subsidiary has been named a defendant in a lawsuit originally filed on August 16, 2018 with an amended complaint filed on January 25, 2019, in the United States District Court for the Western District of Oklahoma. The action is styled VenVer S.A. and Americas Coil Tubing LLP v. GEFCO, Inc., Case No. CIV-18-790-SLP. The complaint alleges breaches of warranty and other similar claims regarding equipment sold by GEFCO in 2013. In addition to seeking a rescission of the purchase contract, the plaintiff is seeking special and consequential damages. The original purchase price of the equipment was approximately $8.5 million. GEFCO disputes the plaintiff's allegations and intends to defend this lawsuit vigorously. On July 7, 2020, the plaintiffs filed a separate lawsuit directly against Astec Industries, Inc. Besides a new claim based on fraudulent transfer, the allegations essentially mirror the GEFCO suit. Astec Industries, Inc. is vigorously defending this suit as well. The Company is unable to determine whether or not a future loss will be incurred due to this litigation or estimate the possible loss or range of loss, if any, at this time. The Company is subject to various claims and legal proceedings in the ordinary course of its business. If management believes that a loss arising from such claims and legal proceedings is probable and can reasonably be estimated, the Company records the amount of the loss (excluding estimated legal fees) or the minimum estimated liability when the loss is estimated using a range and no point within the range is more probable than another. As management becomes aware of additional information concerning such contingencies, any potential liability related to these matters is assessed and the estimates are revised, if necessary. If management believes that a loss arising from such claims and legal proceedings is either: (i) probable but cannot be reasonably estimated or (ii) reasonably estimable but not probable, the Company does not record the amount of the loss, but does make specific disclosure of such matter. Based upon currently available information and with the advice of counsel, management believes that the ultimate outcome of its current claims and legal proceedings, individually and in the aggregate, will not have a material adverse effect on the Company's financial position, cash flows or results of operations. However, claims and legal proceedings are subject to inherent uncertainties and rulings unfavorable to the Company could occur. If an unfavorable ruling were to occur, there exists the possibility of a material adverse effect on the Company's financial position, cash flows or results of operations.