Quarterly report pursuant to Section 13 or 15(d)

STOCKHOLDERS' EQUITY

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STOCKHOLDERS' EQUITY
 3 Months Ended
Mar. 31, 2020
Stockholders' Equity Note [Abstract]  
STOCKHOLDERS' EQUITY STOCKHOLDERS’ EQUITY
A summary of changes in stockholders’ equity is presented below (in thousands): 
  Three Months Ended March 31, 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   

  Three Months Ended March 31, 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