Shareholders' Equity - Summary of Preferred Shares of Beneficial Interest (Detail) - USD ($) |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
Dec. 31, 2024 |
|
| Class Of Stock [Line Items] | |||||
| Number of shares | 22,400,000 | 22,400,000 | 22,400,000 | ||
| Liquidation preference | $ 560,000,000 | $ 560,000,000 | $ 560,000,000 | ||
| Issuance discount | 18,518,000 | 18,518,000 | |||
| Carrying value | $ 541,482,000 | $ 541,482,000 | $ 541,482,000 | ||
| 8.125% Series A Preferred Stock [Member] | |||||
| Class Of Stock [Line Items] | |||||
| Number of shares | 4,600,000 | 4,600,000 | |||
| Liquidation preference | $ 115,000,000 | $ 115,000,000 | |||
| Issuance discount | 3,828,000 | 3,828,000 | |||
| Carrying value | $ 111,172,000 | $ 111,172,000 | |||
| Dividends per share | $ 0.51 | $ 0.51 | $ 1.02 | $ 1.02 | |
| 8.00% Series B Preferred Stock [Member] | |||||
| Class Of Stock [Line Items] | |||||
| Number of shares | 7,800,000 | 7,800,000 | |||
| Liquidation preference | $ 195,000,000 | $ 195,000,000 | |||
| Issuance discount | 6,465,000 | 6,465,000 | |||
| Carrying value | $ 188,535,000 | $ 188,535,000 | |||
| Dividends per share | $ 0.5 | 0.5 | $ 1 | 1 | |
| 6.75% Series C Preferred Stock [Member] | |||||
| Class Of Stock [Line Items] | |||||
| Number of shares | 10,000,000 | 10,000,000 | |||
| Liquidation preference | $ 250,000,000 | $ 250,000,000 | |||
| Issuance discount | 8,225,000 | 8,225,000 | |||
| Carrying value | $ 241,775,000 | $ 241,775,000 | |||
| Dividends per share | $ 0.42 | $ 0.42 | $ 0.84 | $ 0.84 | |