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Stockholders' Equity - Additional Information (Detail) - USD ($) |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
Mar. 01, 2024 | Mar. 01, 2023 | Feb. 28, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023
Shareholders Equity [Line Items] |  |  |  |  |  |  |  |
Payment of regular quarterly dividend |  |  |  |  |  | $ 49,800,000 | $ 41,500,000 |
Regular quarterly dividends paid per share |  |  |  |  |  | $ 0.9 | $ 0.86 |
Shares issued pursuant to dividend reinvestment, shares |  |  |  |  |  | 1,089 | 817 |
Shares issued pursuant to dividend reinvestment, value |  |  |  | $ 15,000 | $ 13,000 | $ 30,000 | $ 28,000 |
Proceeds from issuance of common stock under the dividend reinvestment plan |  |  |  |  |  | 30,000 | 28,000 |
Stock based compensation expense |  |  |  |  |  | 2,900,000 | $ 2,700,000 |
Common Stock [Member] |  |  |  |  |  |  |  |
Shareholders Equity [Line Items] |  |  |  |  |  |  |  |
Shares issued pursuant to dividend reinvestment, shares |  |  |  |  | 1,000 |  | 1,000 |
February 2023 Forward Offering [Member] |  |  |  |  |  |  |  |
Shareholders Equity [Line Items] |  |  |  |  |  |  |  |
Proceeds from issuance of common stock, net |  |  |  |  |  |  |  | $ 112,100,000
Number of shares settled under forward provisions |  |  |  |  |  |  |  | 3,450,000
Follow-on Public Offering [Member] | February 2023 Forward Offering [Member] | Common Stock [Member] |  |  |  |  |  |  |  |
Shareholders Equity [Line Items] |  |  |  |  |  |  |  |
Shares issued pursuant to Offering/Program net, shares |  |  | 3,450,000 |  |  |  |  |
ATM Program [Member] |  |  |  |  |  |  |  |
Shareholders Equity [Line Items] |  |  |  |  |  |  |  |
Proceeds from issuance of common stock, net |  |  |  | $ 7,200,000 | $ 31,200,000 | $ 7,200,000 | $ 114,100,000 |
Number of shares allowed for sale under forward provisions |  |  |  | 400,000 |  | 400,000 |  |
Remaining number of shares subject to forward sale agreements |  |  |  |  | 0 |  | 0 |
Sale of common stock average gross offering price per share |  |  |  | $ 27.98 |  | $ 27.98 |  |
Number of shares settled under forward provisions |  |  |  | 200,000 | 1,000,000 | 200,000 | 3,700,000 |
ATM Program [Member] | Common Stock [Member] |  |  |  |  |  |  |  |
Shareholders Equity [Line Items] |  |  |  |  |  |  |  |
Shares issued pursuant to Offering/Program net, shares |  |  |  | 218,000 | 1,007,000 | 218,000 | 3,721,000 |
Number of shares allowed for sale under forward provisions |  |  |  |  |  | 1,200,000 |  |
Sale of common stock average gross offering price per share |  |  |  | $ 29.03 |  | $ 29.03 |  |
ATM Program [Member] | Maximum [Member] |  |  |  |  |  |  |  |
Shareholders Equity [Line Items] |  |  |  |  |  |  |  |
Aggregate sales price |  |  | $ 350,000,000 |  |  |  |  |
ATM Direct Issuances [Member] | Common Stock [Member] |  |  |  |  |  |  |  |
Shareholders Equity [Line Items] |  |  |  |  |  |  |  |
Shares issued pursuant to Offering/Program net, shares |  |  |  | 0 | 0 | 0 | 0 |
Amended and Restated 2004 Omnibus Incentive Compensation Plan [Member] | Restricted Stock Units [Member] |  |  |  |  |  |  |  |
Shareholders Equity [Line Items] |  |  |  |  |  |  |  |
Granted, Number of RSUs Outstanding | 271,250 | 253,075 |  |  |  |  |  |

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