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Note 11 - Stockholders' Equity - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Net income attributable to Verisk $ 201.7 $ 185.8 $ 524.3 $ 536.5
Weighted average number of common shares used in basic EPS (in shares) 161,366,544 162,502,191 162,005,382 162,589,473
Potential common shares issuable from stock options and stock-based awards (in shares) 1,426,247 3,229,035 1,419,967 2,930,426
Weighted average number of common shares and dilutive potential common shares used in diluted EPS (in shares) 162,792,791 165,731,226 163,425,349 165,519,899