Stockholders' Equity Note Disclosure [Text Block] | 11. We have 2,000,000,000 shares of authorized common stock as of September 30, 2022 and December 31, 2021 . Our common shares have rights to any dividend declared by the board of directors (the "Board"), subject to any preferential or other rights of any outstanding preferred stock, and voting rights to elect all current members of the Board. At September 30, 2022 and December 31, 2021, We have 80,000,000 shares of authorized preferred stock, par value $0.001 per share. The preferred shares have preferential rights over the common shares with respect to dividends and net distribution upon liquidation. We did not September 30, 2022 and December 31, 2021. On February 16, 2022, April 27, 2022, July 27, 2022, March 15, 2022, June 15, 2022, September 15, 2022. nine September 30, 2022 2021 and recorded as a reduction to retained earnings, respectively. Share Repurchase Program In December 2021, March 2022, June 2022, 815 40, Contracts in Entity's Own Equity ("ASC 815 40" zero January 4, 2022, April 1, 2022, July 1, 2022, February 2022, May 2022, September 2022, nine months ended September 30, 2022 . These repurchases of 3,667,414 shares for the nine months ended September 30, 2022 resulted in a reduction of outstanding shares used to calculate the weighted average common shares outstanding for basic and diluted earnings per share ("EPS"). During the nine months ended September 30, 2022 , we repurchased 6,217,296 shares of common stock with an aggregate value of $1,196.3 million as part of the Repurchase Program, inclusive of the ASR, at a weighted average price of $192.42 per share. We utilized cash from operations and borrowings from our Credit Facility to fund these repurchases. As of September 30, 2022, approved by our Board on February 16, 2022. In September 2022 , we entered into an additional ASR agreement with HSBC Bank USA, N.A. to repurchase shares of our common stock for an aggregate purchase price of $100.0 million. Upon payment of the aggregate purchase price on October 3, 2022, fourth 2022, may Treasury Stock As of September 30, 2022 , our treasury stock consisted of 387,161,020 shares of common stock, carried at cost. During the nine months ended September 30, 2022 , we transferred 1,407,675 shares of common stock from the treasury shares at a weighted average treasury stock price of $14.07 per share. Earnings Per Share Basic EPS is computed by dividing net income attributable to Verisk by the weighted average number of common shares outstanding during the period. The computation of diluted EPS is similar to the computation of basic EPS except that the denominator is increased to include the number of additional common shares that would have been outstanding, using the treasury stock method, if the dilutive potential common shares, including vested and nonvested stock options, nonvested restricted stock awards, nonvested restricted stock units, nonvested performance awards consisting of performance share units ("PSU"), and nonvested deferred stock units, had been issued. The following is a presentation of the numerators and denominators of the basic and diluted EPS computations for the three nine September 30, 2022 2021 Three Months Ended September 30, Nine Months Ended September 30, 2022 2021 2022 2021 Numerator used in basic and diluted EPS: Net income attributable to Verisk $ 189.4 $ 201.7 $ 892.8 $ 524.3 Denominator: Weighted average number of common shares used in basic EPS 156,940,608 161,366,544 158,531,439 162,005,382 Effect of dilutive shares: Potential common shares issuable from stock options and stock awards 1,037,998 1,426,247 1,048,823 1,419,967 Weighted average number of common shares and dilutive potential common shares used in diluted EPS 157,978,606 162,792,791 159,580,262 163,425,349 The potential shares of common stock that were excluded from diluted EPS were 1,321,733 and 740,090 for the three September 30, 2022 2021 , and 1,365,720 and 824,067 for the nine September 30, 2022 2021 Accumulated Other Comprehensive Losses The following is a summary of accumulated other comprehensive losses as of September 30, 2022 December 31, 2021 2022 2021 Foreign currency translation adjustment $ (860.8 ) $ (338.0 ) Pension and postretirement adjustment, net of tax (55.3 ) (56.6 ) Accumulated other comprehensive losses $ (916.1 ) $ (394.6 ) The before-tax and after-tax amounts of other comprehensive (loss) income for the three nine September 30, 2022 2021 Before Tax Tax (Expense) Benefit After Tax For the Three Months Ended September 30, 2022 Foreign currency translation adjustment attributable to Verisk $ (233.0 ) $ — $ (233.0 ) Foreign currency translation adjustment attributable to noncontrolling interests (1.2 ) — (1.2 ) Foreign currency translation adjustment (234.2 ) — (234.2 ) Pension and postretirement adjustment before reclassifications 1.5 (0.4 ) 1.1 Amortization of net actuarial loss and prior service benefit reclassified from accumulated other comprehensive losses (1) (0.9 ) 0.1 (0.8 ) Pension and postretirement adjustment 0.6 (0.3 ) 0.3 Total other comprehensive loss $ (233.6 ) $ (0.3 ) $ (233.9 ) For the Three Months Ended September 30, 2021 Foreign currency translation adjustment $ (80.4 ) $ — $ (80.4 ) Pension and postretirement adjustment before reclassifications 2.1 (0.6 ) 1.5 Amortization of net actuarial loss and prior service benefit reclassified from accumulated other comprehensive losses (1) (1.1 ) 0.3 (0.8 ) Pension and postretirement adjustment 1.0 (0.3 ) 0.7 Total other comprehensive loss $ (79.4 ) $ (0.3 ) $ (79.7 ) Before Tax Tax (Expense) Benefit After Tax For the Nine Months Ended September 30, 2022 Foreign currency translation adjustment attributable to Verisk $ (522.8 ) $ — $ (522.8 ) Foreign currency translation adjustment attributable to noncontrolling interests (2.7 ) — (2.7 ) Foreign currency translation adjustment (525.5 ) — (525.5 ) Pension and postretirement adjustment before reclassifications 4.2 (1.1 ) 3.1 Amortization of net actuarial loss and prior service benefit reclassified from accumulated other comprehensive losses (1) (2.4 ) 0.6 (1.8 ) Pension and postretirement adjustment 1.8 (0.5 ) 1.3 Total other comprehensive loss $ (523.7 ) $ (0.5 ) $ (524.2 ) For the Nine Months Ended September 30, 2021 Foreign currency translation adjustment $ (55.2 ) $ — $ (55.2 ) Pension and postretirement adjustment before reclassifications 6.2 (1.6 ) 4.6 Amortization of net actuarial loss and prior service benefit reclassified from accumulated other comprehensive losses (1) (3.1 ) 0.8 (2.3 ) Pension and postretirement adjustment 3.1 (0.8 ) 2.3 Total other comprehensive loss $ (52.1 ) $ (0.8 ) $ (52.9 ) ___________ ( 1 These accumulated other comprehensive loss components, before tax, are included under "Cost of revenues" and "Selling, general and administrative" in our accompanying condensed consolidated statements of operations. These components are also included in the computation of net periodic (benefit) cost (see Note 13 |