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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, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Selected Quarterly Financial Information [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total closing revenue | $ 880,708 |  | $ 752,857 |  | $ 797,896 |  | $ 597,766 |  | $ 781,613 |  | $ 669,956 |  | $ 597,801 |  | $ 518,712 |  | $ 3,029,227 |  | $ 2,568,082 |  | $ 2,169,643 |
Total closing gross profit | 157,438 |  | 131,874 |  | 138,104 |  | 103,796 |  | 152,075 |  | 126,244 |  | 114,749 |  | 95,641 |  | 531,212 |  | 488,709 |  | 452,617 |
Earnings before income taxes | 76,337 |  | 53,802 |  | 59,036 |  | 28,885 |  | 76,085 |  | 46,668 |  | 41,414 |  | 25,297 |  | 218,060 |  | 189,464 |  | 208,417 |
Net earnings | $ 51,807 |  | $ 36,887 |  | $ 39,878 |  | $ 20,969 |  | $ 52,897 |  | $ 30,308 |  | $ 29,133 |  | $ 16,400 |  | $ 149,541 |  | $ 128,738 |  | $ 142,241 |
Per Share Data: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic earnings per share (in dollars per share) | $ 1.29 | [1] | $ 0.92 | [1] | $ 1.00 | [1] | $ 0.53 | [1] | $ 1.33 | [1] | $ 0.76 | [1] | $ 0.73 | [1] | $ 0.42 | [1] | $ 3.74 |  | $ 3.25 |  | $ 3.65 |
Diluted earnings per share (in dollars per share) | $ 1.22 | [1] | $ 0.88 | [1] | $ 0.95 | [1] | $ 0.50 | [1] | $ 1.26 | [1] | $ 0.73 | [1] | $ 0.70 | [1] | $ 0.40 | [1] | $ 3.55 | [2] | $ 3.09 | [2] | $ 3.46 | [2]
[1] | Due to the computation of earnings per share, the sum of the quarterly amounts may not equal the full-year results.
[2] | In accordance with ASC 260-10, Earnings Per Share, ("ASC 260-10") we calculate the dilutive effect of convertible securities using the "if-converted" method.

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