Acquisitions and Dispositions 2019 Acquisition On November 15, 2019, the Company acquired the remaining 35% ownership interest of Laird + Partners it did not own for an aggregate purchase price of $2,389 , comprised of a closing cash payment of $1,588 and contingent deferred acquisition payments with an estimated present value at the acquisition date of $801 . The contingent deferred payments are based on the financial results of the underlying business from 2018 to 2020 with final payment due in 2021. As of the acquisition date, the fair value of the additional interest acquired was $6,005 . The fair value was measured using a discounted cash flow model. As a result of the transaction, the Company reduced redeemable noncontrolling interests by $5,045 . The difference between the purchase price and the redeemable noncontrolling interest of $2,656 was recorded in common stock and other paid-in capital in the Consolidated Balance Sheets . Effective April 1, 2019, the Company acquired the remaining 35% ownership interest of HPR Partners LLC (Hunter) it did not own for an aggregate purchase price of $10,234 , comprised of a closing cash payment of $3,890 and additional contingent deferred acquisition payments with an estimated present value at the acquisition date of $6,344 . The contingent deferred payments are based on the financial results of the underlying business from 2018 to 2020 with final payment due in 2021. As of the acquisition date, the fair value of the additional interest acquired was $20,178 . The fair value was measured using a discounted cash flow model. As a result of the transaction, the Company reduced redeemable noncontrolling interests by $9,486 . The difference between the purchase price and the noncontrolling interest of $745 was recorded in common stock and other paid-in capital in the Consolidated Balance Sheets . 2019 Disposition On March 8, 2019, the Company consummated the sale of Kingsdale, an operating segment with operations in Toronto and New York City that provides shareholder advisory services. As consideration for the sale, the Company received cash plus the assumption of certain liabilities totaling approximately $50 million in the aggregate. The sale resulted in a loss of approximately $3 million , which was included in Other, net within the Condensed Consolidated Statement of Operations. Assets and Liabilities Held for Sale - Change in Plan to Sell In the fourth quarter of 2018, the Company initiated a process to sell its ownership interest in a foreign office within the Integrated Networks - Group B reportable segment. The assets and liabilities of the entity were classified as Assets and Liabilities held for sale, at their fair value less cost to sell, within the Consolidated Balance Sheet as of December 31, 2018. In the second quarter of 2019, following the appointment of Mark Penn as CEO, management changed its strategy and plan to sell the foreign office. In the second quarter of 2019, in connection with managements decision, the amounts classified within assets and liabilities held for sale were reclassified into the respective line items within the Consolidated Balance Sheets . 2018 Acquisitions In 2018, the Company entered into various transactions in connection with certain of its majority-owned entities. These transactions were for an aggregate purchase price of $56,463 , resulting in an increase in contingent deferred consideration liabilities as of the acquisition dates of $16,174 , reduced redeemable noncontrolling interests of $9,790 , a net increase in noncontrolling interests equity of $15,411 , increased additional paid-in capital of $4,975 , and the issuance of 1,011,561 shares of the Companys Class A subordinate voting stock.Deferred Acquisition Consideration Deferred acquisition consideration on the balance sheet consists of deferred obligations related to contingent and fixed purchase price payments, and to a lesser extent, contingent and fixed retention payments tied to continued employment of specific personnel. Contingent deferred acquisition consideration is recorded at the acquisition date fair value and adjusted at each reporting period through operating income, for contingent purchase price payments, or net interest expense, for fixed purchase price payments. The Company accounts for retention payments through operating income as stock-based compensation over the required retention period. The following table presents changes in contingent deferred acquisition consideration, which is measured at fair value on a recurring basis using significant unobservable inputs, and a reconciliation to the amounts reported on the balance sheets as of December 31, 2019 and December 31, 2018 . December 31, 2019 2018 Beginning balance of contingent payments $ 82,598 $ 119,086 Payments (30,719 ) (54,947 ) Redemption value adjustments (1) 15,450 3,512 Additions - acquisitions and step-up transactions 7,145 14,943 Other (2) 197 4 Ending balance of contingent payments $ 74,671 $ 82,598 Fixed payments 549 1,097 $ 75,220 $ 83,695 (1) Redemption value adjustments are fair value changes from the Companys initial estimates of deferred acquisition payments and stock-based compensation charges relating to acquisition payments that are tied to continued employment. Redemption value adjustments are recorded within cost of services sold and office and general expenses on the Consolidated Statements of Operations. (2) Other primarily consists of translation adjustments. The following table presents the impact to the Companys statement of operations due to the redemption value adjustments for the contingent deferred acquisition consideration for the twelve months ended December 31, 2019 and 2018 : 2019 2018 (Income) loss attributable to fair value adjustments $ 5,402 $ (3,679 ) Stock-based compensation 10,048 7,191 Redemption value adjustments $ 15,450 $ 3,512