Subsequent Events (Detail) - Air Wisconsin - Subsequent Event - employee	Apr. 10, 2025	Mar. 14, 2025
Subsequent Event [Line Items]
Employees, pilots, and dispatchers to be furloughed or terminated		240
Employees subject to additional reductions in force	400
Management
Subsequent Event [Line Items]
Employees, pilots, and dispatchers to be furloughed or terminated		123
Pilot
Subsequent Event [Line Items]
Employees, pilots, and dispatchers to be furloughed or terminated		100
Dispatcher
Subsequent Event [Line Items]
Employees, pilots, and dispatchers to be furloughed or terminated		13