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Long-Term Debt, net - Additional Information (Details) |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
May 12, 2022 USD ($) | Apr. 12, 2021 USD ($) | Feb. 11, 2021 USD ($) | Jun. 30, 2022 USD ($) item | Jun. 30, 2022 USD ($) item | Jun. 30, 2021 USD ($) | Jun. 30, 2022 USD ($) item | Jun. 30, 2021 USD ($) | Dec. 31, 2021 USD ($)
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |
Deferred bond issuance costs |  |  |  | $ 23,400,000 | $ 23,400,000 |  | $ 23,400,000 |  | $ 28,400,000
Remaining borrowing availability |  |  |  | 0 | 0 |  | $ 0 |  |
Number of vessels excluding sale and lease back arrangement | item |  |  |  |  |  |  | 54 |  |
Carrying value of vessels |  |  |  | $ 1,852,200,000 | 1,852,200,000 |  | $ 1,852,200,000 |  |
Early repaid amount |  |  |  |  |  |  | 383,125,000 | $ 1,295,025,000 |
Gain on debt extinguishment |  | $ 111,600,000 |  |  | $ 22,939,000 | $ 111,616,000 | 22,939,000 | 111,616,000 |
Incurred interest expense |  |  |  |  |  |  | 13,600,000 |  |
Interest expense capitalized |  |  |  |  |  |  | 700,000 | $ 0 |
Interest expense incurred |  |  |  |  |  |  | $ 14,300,000 |  |
TEU sister vessels |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |
TEU | item |  |  |  | 5,466 | 5,466 |  | 5,466 |  |
Citibank/Natwest $815 mil. Facility |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |
Credit facility | $ 815,000,000 |  |  | $ 815,000,000 | $ 815,000,000 |  | $ 815,000,000 |  |
Amount of quarterly instalment | 12,900,000 |  |  |  |  |  |  |  |
Balloon payment at maturity | 309,000,000.0 |  |  |  |  |  |  |  |
Long-term debt |  |  |  | $ 463,500,000 | $ 463,500,000 |  | $ 463,500,000 |  | 774,250,000
Minimum percentage of fair market value of collateral vessels required to cover loan value |  |  |  | 120.00% | 120.00% |  | 120.00% |  |
Minimum liquidity |  |  |  | $ 30,000,000.0 | $ 30,000,000.0 |  | $ 30,000,000.0 |  |
Maximum leverage ratio |  |  |  | 6.5 | 6.5 |  | 6.5 |  |
Minimum interest coverage ratio |  |  |  | 2.5 | 2.5 |  | 2.5 |  |
Early repaid amount | 270,000,000.0 |  |  |  |  |  |  |  |
Senior unsecured notes |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |
Fixed interest rate (as a percent) |  |  | 8.50% |  |  |  |  |  |
Percent of equity offering proceeds within 90 days after the equity offering closing |  |  | 108.50% |  |  |  |  |  |
Deferred bond issuance costs |  |  | $ 9,000,000.0 |  |  |  |  |  |
Long-term debt |  |  | $ 300,000,000.0 | $ 300,000,000 | $ 300,000,000 |  | $ 300,000,000 |  | 300,000,000
Senior unsecured notes | March 1, 2024 |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |
Percent of principal amount being redeemed |  |  | 104.25% |  |  |  |  |  |
Senior unsecured notes | March 1, 2025 |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |
Percent of principal amount being redeemed |  |  | 102.125% |  |  |  |  |  |
Senior unsecured notes | March 1, 2026 |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |
Percent of principal amount being redeemed |  |  | 100.00% |  |  |  |  |  |
Senior unsecured notes | Maximum |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |
Redemption price (as percent) |  |  | 35.00% |  |  |  |  |  |
Macquarie Bank $58 mil. Facility |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |
Credit facility |  |  |  | 58,000,000 | 58,000,000 |  | 58,000,000 |  |
Long-term debt |  |  |  |  |  |  |  |  | 45,600,000
Early repaid amount | 43,000,000.0 |  |  |  |  |  |  |  |
Eurobank $30.0 mil. Facility |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |
Credit facility |  |  |  | 30,000,000.0 | 30,000,000.0 |  | 30,000,000.0 |  |
Long-term debt |  |  |  |  |  |  |  |  | 21,375,000
Early repaid amount | 20,600,000 |  |  |  |  |  |  |  |
SinoPac $13.3 mil. Facility |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |
Credit facility |  |  |  | 13,300,000 | 13,300,000 |  | 13,300,000 |  |
Long-term debt |  |  |  |  |  |  |  |  | $ 10,800,000
Early repaid amount | $ 9,800,000 |  |  |  |  |  |  |  |
BNP Paribas/Credit Agricole $130 mil. Facility |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |
Credit facility |  |  |  | 130,000,000 | 130,000,000 |  | 130,000,000 |  |
Amount of quarterly instalment |  |  |  | $ 5,000,000.0 |  |  |  |  |
Spread on variable rate |  |  |  | 2.16% |  |  |  |  |
Long-term debt |  |  |  | $ 130,000,000 | $ 130,000,000 |  | $ 130,000,000 |  |
Minimum percentage of fair market value of collateral vessels required to cover loan value |  |  |  | 125.00% | 125.00% |  | 125.00% |  |
Early repaid amount |  |  |  | $ 130,000,000.0 |  |  |  |  |
BNP Paribas/Credit Agricole $130 mil. Facility | TEU sister vessels |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |
Amount of quarterly instalment |  |  |  | 1,900,000 |  |  |  |  |
Balloon payment at maturity |  |  |  | $ 67,200,000 | $ 67,200,000 |  | $ 67,200,000 |  |

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