v3.26.1
Description of Plan (Tables)
12 Months Ended
Dec. 31, 2025
MAGNERA CORPORATION 401(K) SAVINGS PLAN [Member]  
Description of Plan [Abstract]  
Graded Vesting Schedule for Company Matching Contributions Company matching contributions are subject to a graded vesting schedule through which a participant becomes fully vested after attaining five years of service as follows:
   
Years of Vesting Service
 
Vesting Percentage
Less than 2 years
 
0
2 years
 
25
3 years
 
50
4 years
 
75
5 or more years
 
100