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Long-Term Debt, net - Additional Information (Details) $ in Thousands |  | 1 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | ---
Feb. 11, 2021 USD ($) | Feb. 28, 2025 USD ($) item installment | Dec. 31, 2022 USD ($) installment item | Jun. 30, 2022 USD ($) item installment | Jun. 30, 2025 USD ($) installment item | Jun. 30, 2024 USD ($) | Dec. 31, 2024 USD ($) | Mar. 31, 2024 USD ($) item
Long-Term Debt, net |  |  |  |  |  |  |  |
Incurred interest expense |  |  |  |  | $ 27,400 | $ 18,700 |  |
Interest expense capitalized |  |  |  |  | $ 9,300 | 11,400 |  |
Number of vessels excluding sale and lease back arrangement | item |  |  |  |  | 31 |  |  |
Carrying value of vessels subject to first preferred mortgages as collateral to credit facilities |  |  |  |  | $ 2,053,700 |  |  |
Number of container vessel | item |  |  |  |  | 15 |  |  |
Deferred bond issuance costs |  |  |  |  | $ 9,100 |  | $ 9,800 |
BNP Paribas/Credit Agricole $130 mil. Facility |  |  |  |  |  |  |  |
Long-Term Debt, net |  |  |  |  |  |  |  |
Credit facility |  |  |  |  |  | 130,000 | 130,000 |
Syndicated 850.0 million facility |  |  |  |  |  |  |  |
Long-Term Debt, net |  |  |  |  |  |  |  |
Credit facility |  | $ 850,000 |  |  | 850,000 |  | 850,000 |
Number of vessels under construction | item |  | 14 |  |  |  |  |  |
Number of quarterly instalments | installment |  | 20 |  |  |  |  |  |
Amount of quarterly instalment |  | $ 800 |  |  |  |  |  |
Spread on variable rate |  | 1.65% |  |  |  |  |  |
Commitment fee payable (as a percent) |  | 0.50% |  |  |  |  |  |
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] |  | us-gaap:SecuredOvernightFinancingRateSofrMember |  |  |  |  |  |
Remaining borrowing availability |  |  |  |  | 850,000 |  |  |
Syndicated 850.0 million facility | Minimum |  |  |  |  |  |  |  |
Long-Term Debt, net |  |  |  |  |  |  |  |
Balloon payment at maturity |  | $ 42,400 |  |  |  |  |  |
Syndicated 850.0 million facility | Maximum |  |  |  |  |  |  |  |
Long-Term Debt, net |  |  |  |  |  |  |  |
Balloon payment at maturity |  | $ 46,700 |  |  |  |  |  |
Syndicated $450.0 mil. Facility |  |  |  |  |  |  |  |
Long-Term Debt, net |  |  |  |  |  |  |  |
Credit facility |  |  |  |  | $ 450,000 |  | 450,000 | $ 450,000
Number of quarterly instalments | installment |  |  |  |  | 20 |  |  |
Spread on variable rate |  |  |  |  | 1.85% |  |  |
Commitment fee payable (as a percent) |  |  |  |  | 0.74% |  |  |
Number of vessels pledged as collateral | item |  |  |  |  |  |  |  | 8
Number of vessels under construction pledged as collateral | item |  |  |  |  |  |  |  | 1
Vessel tranches |  |  |  |  | $ 44,000 |  |  |
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] |  |  |  |  | us-gaap:SecuredOvernightFinancingRateSofrMember |  |  |
Remaining borrowing availability |  |  |  |  | $ 44,000 |  |  |
Syndicated $450.0 mil. Facility | Minimum |  |  |  |  |  |  |  |
Long-Term Debt, net |  |  |  |  |  |  |  |
Amount of quarterly instalment |  |  |  |  | 600 |  |  |
Balloon payment at maturity |  |  |  |  | 31,800 |  |  |
Syndicated $450.0 mil. Facility | Maximum |  |  |  |  |  |  |  |
Long-Term Debt, net |  |  |  |  |  |  |  |
Amount of quarterly instalment |  |  |  |  | 900 |  |  |
Balloon payment at maturity |  |  |  |  | 45,500 |  |  |
BNP Paribas/Credit Agricole $130 mil. Facility |  |  |  |  |  |  |  |
Long-Term Debt, net |  |  |  |  |  |  |  |
Credit facility |  |  |  |  | $ 130,000 |  |  |
Balloon payment at maturity |  |  |  | $ 67,200 |  |  |  |
Spread on variable rate |  |  |  | 2.16% |  |  |  |
Number of vessels pledged as collateral | item |  |  |  | 6 |  |  |  |
Face amount of debt |  |  |  | $ 130,000 |  |  |  |
Term of debt |  |  |  | 5 years |  |  |  |
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] |  |  |  | us-gaap:SecuredOvernightFinancingRateSofrMember |  |  |  |
Minimum percentage of fair market value of collateral vessels required to cover loan value |  |  |  |  | 125.00% |  |  |
BNP Paribas/Credit Agricole $130 mil. Facility | Eight Quarterly Installment |  |  |  |  |  |  |  |
Long-Term Debt, net |  |  |  |  |  |  |  |
Number of quarterly instalments | item |  |  |  | 8 |  |  |  |
Amount of quarterly instalment |  |  |  | $ 5,000 |  |  |  |
BNP Paribas/Credit Agricole $130 mil. Facility | Twelve Quarterly Installments |  |  |  |  |  |  |  |
Long-Term Debt, net |  |  |  |  |  |  |  |
Number of quarterly instalments | installment |  |  |  | 12 |  |  |  |
Amount of quarterly instalment |  |  |  | $ 1,900 |  |  |  |
BNP Paribas/Credit Agricole $130 mil. Facility | TEU sister vessels |  |  |  |  |  |  |  |
Long-Term Debt, net |  |  |  |  |  |  |  |
TEU | item |  |  |  | 5,466 |  |  |  |
Citibank/Natwest $815 mil. Facility |  |  |  |  |  |  |  |
Long-Term Debt, net |  |  |  |  |  |  |  |
Credit facility |  |  | $ 815,000 |  |  |  |  |
Credit facility debt extinguished |  |  | 437,750 |  |  |  |  |
Citibank $382.5 mil. Revolving Credit Facility |  |  |  |  |  |  |  |
Long-Term Debt, net |  |  |  |  |  |  |  |
Credit facility |  |  | $ 382,500 |  | $ 382,500 | 382,500 | 382,500 |
Number of quarterly instalments | installment |  |  | 20 |  |  |  |  |
Amount of quarterly instalment |  |  | $ 11,250 |  |  |  |  |
Balloon payment at maturity |  |  | $ 157,500 |  |  |  |  |
Spread on variable rate |  |  | 2.00% |  |  |  |  |
Commitment fee payable (as a percent) |  |  | 0.80% |  |  |  |  |
Number of vessels pledged as collateral | item |  |  | 16 |  |  |  |  |
Term of debt |  |  | 5 years |  |  |  |  |
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] |  |  | us-gaap:SecuredOvernightFinancingRateSofrMember |  |  |  |  |
Amount drawn |  |  |  |  | 0 |  |  |
Remaining borrowing availability |  |  |  |  | 270,000 |  |  |
Alpha Bank $55.25 mil. Facility |  |  |  |  |  |  |  |
Long-Term Debt, net |  |  |  |  |  |  |  |
Credit facility |  |  | $ 55,250 |  | $ 55,250 | $ 55,250 | $ 55,250 |
Number of quarterly instalments | installment |  |  | 20 |  |  |  |  |
Amount of quarterly instalment |  |  | $ 1,875 |  |  |  |  |
Balloon payment at maturity |  |  | $ 17,750 |  |  |  |  |
Spread on variable rate |  |  | 2.30% |  |  |  |  |
Number of vessels pledged as collateral | item |  |  | 2 |  |  |  |  |
Term of debt |  |  | 5 years |  |  |  |  |
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] |  |  | us-gaap:SecuredOvernightFinancingRateSofrMember |  |  |  |  |
Senior unsecured notes |  |  |  |  |  |  |  |
Long-Term Debt, net |  |  |  |  |  |  |  |
Face amount of debt | $ 300,000 |  |  |  |  |  |  |
Fixed interest rate (as a percent) | 8.50% |  |  |  |  |  |  |
Percentage of principal amount redeemable from equity offering within 90 days of closing | 35.00% |  |  |  |  |  |  |
Redemption period of principal from closing of equity offering | 90 days |  |  |  |  |  |  |
Amount repurchased |  |  | $ 37,200 |  |  |  |  |
Deferred bond issuance costs | $ 9,000 |  |  |  |  |  |  |
Senior unsecured notes | On or after March 1, 2024 |  |  |  |  |  |  |  |
Long-Term Debt, net |  |  |  |  |  |  |  |
Percent of principal amount being redeemed | 104.25% |  |  |  |  |  |  |
Senior unsecured notes | On or after March 1, 2025 |  |  |  |  |  |  |  |
Long-Term Debt, net |  |  |  |  |  |  |  |
Percent of principal amount being redeemed | 102.125% |  |  |  |  |  |  |
Senior unsecured notes | On or after March 1, 2026 |  |  |  |  |  |  |  |
Long-Term Debt, net |  |  |  |  |  |  |  |
Percent of principal amount being redeemed | 100.00% |  |  |  |  |  |  |
Senior unsecured notes | 90 days after equity offering |  |  |  |  |  |  |  |
Long-Term Debt, net |  |  |  |  |  |  |  |
Redemption price (as percent) | 108.50% |  |  |  |  |  |  |
Alpha Bank $55.25 mil. Facility, Citibank $382.5 mil. Revolving Credit Facility Syndicated $450.0 mil. Facility Syndicated $850.0 mil. Facility |  |  |  |  |  |  |  |
Long-Term Debt, net |  |  |  |  |  |  |  |
Minimum percentage of fair market value of collateral vessels required to cover loan value |  |  |  |  | 120.00% |  |  |
Alpha Bank $55.25 mil. Facility, Citibank $382.5 mil. Revolving Credit Facility, Syndicated $450.0 mil. Syndicated $850.0 mil Facility, and the BNP Paribas/Credit Agricole $130 mil. Facility |  |  |  |  |  |  |  |
Long-Term Debt, net |  |  |  |  |  |  |  |
Minimum liquidity |  |  |  |  | $ 30,000 |  |  |
Maximum leverage ratio |  |  |  |  | 6.5 |  |  |
Minimum interest coverage ratio |  |  |  |  | 2.5 |  |  |

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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)(a)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(f)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481544/470-10-50-6 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481544/470-10-50-6 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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- Definition Amount of the required periodic payments of both interest and principal. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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