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Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Mar. 31, 2022 | Jun. 30, 2021 | Mar. 31, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Earnings |  |  |  |  |  |
Basic earnings per share | $ 48,492 | $ 34,724 | $ 16,252 | $ 35,043 | $ 83,216 | $ 51,295
Restricted stock units | 0 |  | 0 |  | 0 | 0
Restricted stock awards | 0 |  | 0 |  | 0 |
Performance share units | 0 |  | 0 |  | 0 | 0
Stock options | 0 |  | 0 |  | 0 | 0
Diluted earnings per share | $ 48,492 |  | $ 16,252 |  | $ 83,216 | $ 51,295
Weighted Average Shares |  |  |  |  |  |
Basic earnings per share (in shares) | 36,699 |  | 36,416 |  | 36,667 | 36,187
Restricted stock units (in shares) | 339 |  | 855 |  | 323 | 1,019
Restricted stock awards (in shares) | 34 |  | 36 |  | 42 | 39
Performance share units (in shares) | 0 |  | 0 |  | 0 | 0
Stock options (in shares) | 113 |  | 38 |  | 75 | 38
Diluted earnings per share (in shares) | 37,185 |  | 37,345 |  | 37,107 | 37,283
Earnings Per Share |  |  |  |  |  |
Basic earnings per share (in dollars per share) | $ 1.32 |  | $ 0.45 |  | $ 2.27 | $ 1.42
Diluted earnings per share (in dollars per share) | $ 1.30 |  | $ 0.44 |  | $ 2.24 | $ 1.38

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- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 40 -Subparagraph (b)(2) -URI https://asc.fasb.org/extlink&oid=126958026&loc=d3e1930-109256 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 40 -Subparagraph (b)(3) -URI https://asc.fasb.org/extlink&oid=126958026&loc=d3e1930-109256 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 60B -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=126958026&loc=SL5780133-109256 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 40 -Subparagraph (b)(1) -URI https://asc.fasb.org/extlink&oid=126958026&loc=d3e1930-109256 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 16 -URI https://asc.fasb.org/extlink&oid=126958026&loc=d3e1505-109256 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 40 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126958026&loc=d3e1930-109256 + Details
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- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 16 -URI https://asc.fasb.org/extlink&oid=126958026&loc=d3e1505-109256 + Details
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