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Organization and Summary of Significant Accounting Policies (Computation of Basic and Diluted Earnings per Share) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Earnings Per Share [Abstract] |  |  |  |
Net earnings available to NNNs common stockholders | $ 106,787 | $ 88,421 | $ 295,658 | $ 243,964
Less: Earnings allocated to unvested restricted shares | (171) | (135) | (448) | (471)
Net earnings used in basic and diluted earnings per share | $ 106,616 | $ 88,286 | $ 295,210 | $ 243,493
Basic and Diluted Weighted Average Shares Outstanding: |  |  |  |
Weighted average number of shares outstanding | 182,424,814 | 177,881,613 | 182,092,117 | 176,510,417
Less: Unvested restricted shares (in shares) | (290,458) | (246,116) | (268,713) | (292,433)
Less: Unvested contingent restricted shares (in shares) | (736,083) | (734,711) | (702,441) | (675,628)
Weighted Average Number of Shares Outstanding, Basic, Total | 181,398,273 | 176,900,786 | 181,120,963 | 175,542,356
Other dilutive securities (in shares) | 323,194 | 466,924 | 339,659 | 451,551
Weighted average number of shares outstanding used in diluted earnings per share (in shares) | 181,721,467 | 177,367,710 | 181,460,622 | 175,993,907

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