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Stockholders' Equity - Summary of Changes in Stockholders' Equity (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Shareholders Equity [Line Items] |  |  |  |
Beginning balance, value | $ 951,034 | $ 860,086 | $ 955,552 | $ 759,850
Net earnings | 15,335 | 16,033 | 48,769 | 43,639
Accumulated other comprehensive income (loss) | (2,923) |  | 47 |
Dividends declared | (25,421) | (23,209) | (75,420) | (66,440)
Shares issued pursuant to equity offering/ATM Program, net, value | (102) | 71,586 | (160) | 71,531
Shares issued pursuant to dividend reinvestment, value | 16 | 12 | $ 46 | $ 40
Shares issued pursuant to dividend reinvestment, shares |  |  | 1,643 | 1,178
Stock-based compensation and settlements, value | 1,561 | 1,443 | $ 3,461 | $ 3,159
Ending balance, value | 963,391 | 925,906 | 963,391 | 925,906
ATM Program [Member] |  |  |  |
Shareholders Equity [Line Items] |  |  |  |
Shares issued pursuant to equity offering/ATM Program, net, value | 23,891 | (45) | 31,096 | 114,127
Common Stock [Member] |  |  |  |
Shareholders Equity [Line Items] |  |  |  |
Beginning balance, value | $ 542 | $ 505 | $ 540 | $ 467
Beginning balance, shares | 54,185,000 | 50,501,000 | 53,953,000 | 46,735,000
Shares issued pursuant to equity offering/ATM Program, net, value |  | $ 22 |  | $ 22
Shares issued pursuant to equity offering/ATM Program, net, shares |  | 2,200,000 |  | 2,200,000
Shares issued pursuant to dividend reinvestment, shares | 1,000 | 1,000 | 1,000 | 1,000
Stock-based compensation and settlements, shares |  |  | 14,000 | 45,000
Ending balance, value | $ 550 | $ 527 | $ 550 | $ 527
Ending balance, share | 55,017,000 | 52,702,000 | 55,017,000 | 52,702,000
Common Stock [Member] | ATM Program [Member] |  |  |  |
Shareholders Equity [Line Items] |  |  |  |
Shares issued pursuant to equity offering/ATM Program, net, value | $ 8 | $ 0 | $ 10 | $ 38
Shares issued pursuant to equity offering/ATM Program, net, shares | 831,000 |  | 1,049,000 | 3,721,000
Accumulated Other Comprehensive Income |  |  |  |
Shareholders Equity [Line Items] |  |  |  |
Beginning balance, value | $ (1,051) |  | $ (4,021) |
Accumulated other comprehensive income (loss) | (2,923) |  | 47 |
Ending balance, value | (3,974) |  | (3,974) |
Additional Paid-in-Capital [Member] |  |  |  |
Shareholders Equity [Line Items] |  |  |  |
Beginning balance, value | 1,062,204 | 938,163 | 1,053,129 | $ 822,340
Shares issued pursuant to equity offering/ATM Program, net, value | (102) | 71,564 | (160) | 71,509
Shares issued pursuant to dividend reinvestment, value | 16 | 12 | 46 | 40
Stock-based compensation and settlements, value | 1,561 | 1,443 | 3,461 | 3,159
Ending balance, value | 1,087,562 | 1,011,137 | 1,087,562 | 1,011,137
Additional Paid-in-Capital [Member] | ATM Program [Member] |  |  |  |
Shareholders Equity [Line Items] |  |  |  |
Shares issued pursuant to equity offering/ATM Program, net, value | 23,883 | (45) | 31,086 | 114,089
Dividends Paid in Excess of Earnings [Member] |  |  |  |
Shareholders Equity [Line Items] |  |  |  |
Beginning balance, value | (110,661) | (78,582) | (94,096) | (62,957)
Net earnings | 15,335 | 16,033 | 48,769 | 43,639
Dividends declared | (25,421) | (23,209) | (75,420) | (66,440)
Ending balance, value | $ (120,747) | $ (85,758) | $ (120,747) | $ (85,758)

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