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Common Stock - Sales, Repurchases, and Issuances of Company Capital Stock Narrative (Details) - USD ($) |  | 3 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Jun. 17, 2021 | Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Dec. 31, 2020 | Apr. 23, 2018 | Apr. 22, 2018
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Profit-sharing plan shares, net, value |  |  | $ 2,578,000 |  | $ 4,428,000 |  |  |
Common Stock |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Stock repurchased during period (in shares) |  |  | 198,853 |  | 385,568 |  |  |
Shares exercised (in shares) |  | 2,393,937 | 1,486,795 | 3,657,058 | 2,184,628 |  |  |
Profit-sharing plan shares, net, value |  |  | $ 2,000 |  | $ 4,000 |  |  |
Deferred Compensation, Share-based Payments | Deferred Profit Sharing |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Stock repurchased during period (in shares) |  |  |  |  | 385,568 |  |  |
Profit-sharing plan shares, net, value |  |  |  |  | $ 4,428,000 |  |  |
Performance Based Restricted Stock Units (RSUs), 2016 | Equity Incentive Plan |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Shares repurchased by Company after exercise |  |  |  |  | $ 1,454,000 |  |  |
Shares repurchased by Company after exercise (in shares) |  |  |  |  | 128,176 |  |  |
Class B Common Stock |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Amount authorized for purchase |  |  |  |  |  | $ 250,000,000 | $ 250,000,000 | $ 200,000,000
Stock repurchased during period (in shares) |  |  |  |  | 3,769,346 |  |  |
Class B Common Stock | Private Placement |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Number of shares sold (in shares) |  |  |  |  | 4,574,567 |  |  |
Sale of stock, consideration received |  |  |  |  | $ 58,349,000 |  |  |
Class B Common Stock | Private Placement, Direct Investor Investment |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Number of shares sold (in shares) |  |  |  |  | 805,053 |  |  |
Sale of stock, consideration received |  |  |  |  | $ 12,462,000 |  |  |
Class B Common Stock | Seequent |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Number of shares sold (in shares) | 3,141,342 |  |  |  |  |  |  |
Class B Common Stock | Deferred Compensation Arrangement with Individual, by Type of Compensation, Pension and Other Postretirement Benefits |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Share-based compensation tax withholding payment |  |  |  | $ 61,912,000 | $ 1,830,000 |  |  |
Deferred compensation arrangement with individual, shares issued (in shares) |  |  |  | 2,202,079 | 2,959,731 |  |  |
Deferred compensation arrangement with individual, shares issued, gross (in shares) |  |  |  | 3,527,023 | 3,137,961 |  |  |
Shares withheld for tax withholding obligation (in shares) |  |  |  | 1,324,944 | 178,230 |  |  |
Class B Common Stock | Common Stock |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Shares exercised, net of shares withheld (in shares) |  |  |  |  | 2,184,628 |  |  |
Shares withheld for cost of options and tax withholding obligation |  |  |  |  | 1,225,926 |  |  |
Class B Common Stock | Bonus Plan Incentive |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Shares exercised, net of shares withheld (in shares) |  |  |  | 149,447 |  |  |  |
Shares withheld for cost of options and tax withholding obligation |  |  |  | 99,742 |  |  |  |
Share-based compensation tax withholding payment |  |  |  | $ 4,716,000 |  |  |  |
Shares exercised (in shares) |  |  |  | 249,189 |  |  |  |
Class B Common Stock | Stock Option |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Shares exercised, net of shares withheld (in shares) |  |  |  | 3,657,058 |  |  |  |
Shares withheld for cost of options and tax withholding obligation |  |  |  | 860,335 |  |  |  |
Share-based compensation tax withholding payment |  |  |  | $ 29,027,000 | $ 3,064,000 |  |  |
Cash used to settle award |  |  |  | $ 4,324,000 |  |  |  |
Class B Common Stock | Stock Option | Common Stock |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Cash used to settle award |  |  |  |  | $ 2,237,000 |  |  |

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