Annual report pursuant to Section 13 and 15(d)

SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED) - Schedule of Quarterly Results (Details)

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SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED) - Schedule of Quarterly Results (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Selected Quarterly Financial Information [Abstract]                      
Earnings before income taxes $ 195,365 $ 135,506 $ 115,862 $ 86,833 $ 110,535 $ 92,366 $ 67,674 $ 32,370 $ 533,566 $ 302,945 $ 283,254
Net earnings $ 152,527 $ 109,118 $ 90,678 $ 71,152 $ 103,614 $ 69,809 $ 50,828 $ 25,412 $ 423,475 $ 249,663 $ 227,332
Per Share Data:                      
Basic earnings per share (in dollars per share) $ 4.06 [1] $ 2.90 [1] $ 2.41 [1] $ 1.87 [1] $ 2.71 [1] $ 1.82 [1] $ 1.33 [1] $ 0.66 [1] $ 11.23 $ 6.55 $ 5.67
Diluted earnings per share (in dollars per share) $ 3.97 [1] $ 2.84 [1] $ 2.38 [1] $ 1.83 [1] $ 2.65 [1] $ 1.79 [1] $ 1.31 [1] $ 0.65 [1] $ 11.00 $ 6.42 $ 5.58
Real Estate [Member]                      
Selected Quarterly Financial Information [Abstract]                      
Revenue $ 1,409,937 $ 1,138,091 $ 1,033,079 $ 901,013 $ 1,136,848 $ 940,880 $ 864,610 $ 708,145 $ 4,482,120 $ 3,650,483 $ 3,513,419
Total closing gross profit $ 317,546 $ 244,077 $ 219,248 $ 178,743 $ 219,320 $ 186,091 $ 157,376 $ 116,828 $ 959,614 $ 679,615 $ 629,153
[1] Due to the computation of earnings per share, the sum of the quarterly amounts may not equal the full-year results.