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Stockholders' Equity - Summary of Changes in Stockholders' Equity (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Shareholders Equity [Line Items] |  |  |  |
Beginning balance, value | $ 950,152 | $ 836,208 | $ 955,552 | $ 759,850
Net earnings | 16,711 | 13,524 | 33,434 | 27,606
Accumulated other comprehensive income (loss) | 522 |  | 2,970 |
Dividends declared | (25,047) | (22,262) | (49,999) | (43,231)
Shares issued pursuant to equity offering/ATM Program, net, value | (10) |  | (58) |
Shares issued pursuant to dividend reinvestment, value | 15 | 13 | $ 30 | $ 28
Shares issued pursuant to dividend reinvestment, shares |  |  | 1,089 | 817
Stock-based compensation and settlements, value | 1,420 | 1,444 | $ 1,900 | $ 1,716
Ending balance, value | 951,034 | 860,086 | 951,034 | 860,086
ATM Program [Member] |  |  |  |
Shareholders Equity [Line Items] |  |  |  |
Shares issued pursuant to equity offering/ATM Program, net, value | 7,271 | 31,159 | 7,205 | 114,117
Common Stock [Member] |  |  |  |
Shareholders Equity [Line Items] |  |  |  |
Beginning balance, value | $ 540 | $ 495 | $ 540 | $ 467
Beginning balance, shares | 53,967,000 | 49,493,000 | 53,953,000 | 46,735,000
Shares issued pursuant to dividend reinvestment, shares |  | 1,000 |  | 1,000
Stock-based compensation and settlements, shares | 0 |  | 14,000 | 44,000
Ending balance, value | $ 542 | $ 505 | $ 542 | $ 505
Ending balance, share | 54,185,000 | 50,501,000 | 54,185,000 | 50,501,000
Common Stock [Member] | ATM Program [Member] |  |  |  |
Shareholders Equity [Line Items] |  |  |  |
Shares issued pursuant to equity offering/ATM Program, net, value | $ 2 | $ 10 | $ 2 | $ 38
Shares issued pursuant to equity offering/ATM Program, net, shares | 218,000 | 1,007,000 | 218,000 | 3,721,000
Accumulated Other Comprehensive Income |  |  |  |
Shareholders Equity [Line Items] |  |  |  |
Beginning balance, value | $ (1,573) |  | $ (4,021) |
Accumulated other comprehensive income (loss) | 522 |  | 2,970 |
Ending balance, value | (1,051) |  | (1,051) |
Additional Paid-in-Capital [Member] |  |  |  |
Shareholders Equity [Line Items] |  |  |  |
Beginning balance, value | 1,053,510 | $ 905,557 | 1,053,129 | $ 822,340
Dividends declared |  |  |  | 0
Shares issued pursuant to equity offering/ATM Program, net, value | (10) |  | (58) |
Shares issued pursuant to dividend reinvestment, value | 15 | 13 | 30 | 28
Stock-based compensation and settlements, value | 1,420 | 1,444 | 1,900 | 1,716
Ending balance, value | 1,062,204 | 938,163 | 1,062,204 | 938,163
Additional Paid-in-Capital [Member] | ATM Program [Member] |  |  |  |
Shareholders Equity [Line Items] |  |  |  |
Shares issued pursuant to equity offering/ATM Program, net, value | 7,269 | 31,149 | 7,203 | 114,079
Dividends Paid in Excess of Earnings [Member] |  |  |  |
Shareholders Equity [Line Items] |  |  |  |
Beginning balance, value | (102,325) | (69,844) | (94,096) | (62,957)
Net earnings | 16,711 | 13,524 | 33,434 | 27,606
Dividends declared | (25,047) | (22,262) | (49,999) | (43,231)
Ending balance, value | $ (110,661) | $ (78,582) | $ (110,661) | $ (78,582)

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