Leases - Lessee: Supplemental Cash Flow Information (Detail) - JPY (¥) ¥ in Millions |
12 Months Ended | ||
|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Mar. 31, 2024 |
|
| Schedule Of Cash Flow Information Related To Lease [Abstract] | |||
| Operating Leases, Cash flows from operating activities | ¥ 53,584 | ¥ 52,277 | ¥ 52,729 |
| Operating Leases, Cash flows from financing activities | 0 | 0 | 0 |
| Operating Leases, Right-of-use assets obtained in exchange for lease liabilities | 49,111 | 54,161 | 27,427 |
| Finance Leases, Cash flows from operating activities | 101 | 67 | 84 |
| Finance Leases, Cash flows from financing activities | 481 | 725 | 664 |
| Finance Leases, Right-of-use assets obtained in exchange for lease liabilities: | ¥ 454 | ¥ 407 | ¥ 1,481 |
| X | ||||||||||
- Definition Cash flow from financing activities operating lease No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of interest paid on finance lease liability. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of cash outflow for principal payment on finance lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of increase in right-of-use asset obtained in exchange for finance lease liability. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of increase in right-of-use asset obtained in exchange for operating lease liability. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|