Shareholders' equity - Additional Information (Detail) - $ / shares |
1 Months Ended | |
|---|---|---|
Jul. 31, 2026 |
Jun. 30, 2026 |
|
| Class of Stock [Line Items] | ||
| Preferred stock, shares authorized (in shares) | 20,000,000 | |
| Preferred stock, par value (in dollars per share) | $ 1.00 | |
| Preferred Series L | Subsequent Event | ||
| Class of Stock [Line Items] | ||
| Stock Issued During Period, Shares, New Issues | 60,000 | |
| Preferred stock, liquidation preference per share (in USD per share) | $ 10,000 | |
| Preferred stock dividend rate (as a percent) | 6.625% |
| X | ||||||||||
- 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The percentage rate used to calculate dividend payments on preferred stock. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The per share liquidation preference (or restrictions) of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Number of new stock issued during the period. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|