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STOCKHOLDERS' EQUITY | 9 Months Ended
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Sep. 30, 2020
Stockholders' Equity Note [Abstract] |
STOCKHOLDERS' EQUITY | STOCKHOLDERS’ EQUITY A summary of changes in stockholders’ equity is presented below (in thousands):
|  | Nine Months Ended September 30, 2020 |  |  |  |  |  |  |  |
|  | (In thousands) |  |  |  |  |  |  |  |
|  | Number of Shares |  | Common Stock |  | Additional Paid-In Capital |  | Retained Earnings |  | Total
Balance at December 31, 2019 |  | 38,199 |  |  | $ | 382 |  |  | $ | 505,352 |  |  | $ | 1,468,256 |  |  | $ | 1,973,990 |
Net earnings |  | — |  |  | — |  |  | — |  |  | 71,152 |  |  | 71,152 |
Stock-based compensation expense |  | — |  |  | — |  |  | 6,437 |  |  | — |  |  | 6,437 |
Issuance of stock |  | 398 |  |  | 4 |  |  | (4) |  |  | — |  |  | — |
Share repurchases |  | (1,000) |  |  | (10) |  |  | (60,803) |  |  | — |  |  | (60,813) |
Balance at March 31, 2020 |  | 37,597 |  |  | $ | 376 |  |  | $ | 450,982 |  |  | $ | 1,539,408 |  |  | $ | 1,990,766 |
Net earnings |  | — |  |  | — |  |  | — |  |  | 90,678 |  |  | 90,678 |
Stock-based compensation expense |  | — |  |  | — |  |  | 3,157 |  |  | — |  |  | 3,157 |
Issuance of stock |  | 6 |  |  | 1 |  |  | (1) |  |  | — |  |  | — |
Balance at June 30, 2020 |  | 37,603 |  |  | 377 |  |  | 454,138 |  |  | 1,630,086 |  |  | 2,084,601 |
Net earnings |  | — |  |  | — |  |  | — |  |  | 109,118 |  |  | 109,118 |
Stock-based compensation expense |  | — |  |  | — |  |  | 6,130 |  |  | — |  |  | 6,130 |
Issuance of stock |  | 9 |  |  | — |  |  | — |  |  | — |  |  | — |
Balance at September 30, 2020 |  | 37,612 |  |  | $ | 377 |  |  | $ | 460,268 |  |  | $ | 1,739,204 |  |  | $ | 2,199,849 |
|  | Nine Months Ended September 30, 2019 |  |  |  |  |  |  |  |
|  | (In thousands) |  |  |  |  |  |  |  |
|  | Number of Shares |  | Common Stock |  | Additional Paid-In Capital |  | Retained Earnings |  | Total
Balance at December 31, 2018 |  | 38,073 |  |  | $ | 381 |  |  | $ | 501,781 |  |  | $ | 1,218,593 |  |  | $ | 1,720,755 |
Net earnings |  | — |  |  | — |  |  | — |  |  | 25,412 |  |  | 25,412 |
Stock-based compensation expense |  | — |  |  | — |  |  | 5,861 |  |  | — |  |  | 5,861 |
Issuance of stock |  | 400 |  |  | 4 |  |  | (4) |  |  | — |  |  | — |
Share repurchases |  | (209) |  |  | (2) |  |  | (8,955) |  |  | — |  |  | (8,957) |
Balance at March 31, 2019 |  | 38,264 |  |  | $ | 383 |  |  | $ | 498,683 |  |  | $ | 1,244,005 |  |  | $ | 1,743,071 |
Net earnings |  | — |  |  | — |  |  | — |  |  | 50,828 |  |  | 50,828 |
Stock-based compensation expense |  | — |  |  | — |  |  | 4,201 |  |  | — |  |  | 4,201 |
Issuance of stock |  | 3 |  |  | — |  |  | — |  |  | — |  |  | — |
Balance at June 30, 2019 |  | 38,267 |  |  | 383 |  |  | 502,884 |  |  | 1,294,833 |  |  | 1,798,100 |
Net earnings |  | — |  |  | — |  |  | — |  |  | 69,809 |  |  | 69,809 |
Stock-based compensation expense |  | — |  |  | — |  |  | 5,657 |  |  | — |  |  | 5,657 |
Issuance of stock |  | 32 |  |  | — |  |  | — |  |  | — |  |  | — |
Balance at September 30, 2019 |  | 38,299 |  |  | $ | 383 |  |  | $ | 508,541 |  |  | $ | 1,364,642 |  |  | $ | 1,873,566 |

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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(e)(1)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 + Details
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