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Earnings Per Share | 3 Months Ended
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Mar. 31, 2022
Earnings Per Share [Abstract] |
Earnings Per Share | 14. Earnings Per Share We use the treasury stock method to calculate earnings per share as our currently issued non-vested RSUs and PSUs do not have participating rights. The following table sets forth the computation of basic and diluted EPS for the three months ended March 31, 2022 and 2021 (in thousands, except share and per share information):
|  | Three Months Ended March 31,
|  | 2022 |  | 2021
Numerator |  |  |  |  |  |
Net income |  | $ | 142,496 |  | $ | 101,652
Denominator |  |  |  |  |  |
Weighted average common shares outstanding - basic |  |  | 33,530,610 |  |  | 33,563,903
Dilutive effect of restricted stock units |  |  | 411,624 |  |  | 320,372
Weighted average common shares outstanding - diluted |  |  | 33,942,234 |  |  | 33,884,275
Earnings per share: |  |  |  |  |  |
Basic |  | $ | 4.25 |  | $ | 3.03
Diluted |  | $ | 4.20 |  | $ | 3.00
Stock-based awards are excluded from the calculation of diluted EPS in the event they are subject to unsatisfied performance conditions or are antidilutive. We excluded 0.6 million and 0.8 million common stock unit equivalents from diluted earnings per share during each of the three months ended March 31, 2022 and 2021, respectively, related to the PSUs for which performance conditions remained unsatisfied.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109243012&loc=SL65017193-207537 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3630-109257 + Details
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