v3.26.1
Pension Benefits
 6 Months Ended
Jun. 28, 2026
Retirement Benefits [Abstract]  
Pension Benefits Pension Benefits:
Substantially concurrently with the closing and in connection with the Mergers, the Company assumed the obligations of the Former Six Flags pension plan. Former Six Flags froze its pension plan effective March 31, 2006, and effective February 16, 2009, the remaining participants in the pension plan no longer earned future benefits. The following summarizes pension costs and the weighted-average assumptions used to determine net cost for the three and six months ended June 28, 2026 and June 29, 2025. The components of net periodic (benefit) expense were included in "Other expense (income), net" in the unaudited consolidated statements of operations and comprehensive loss. The Company did not make any pension contributions during the six month periods ended June 28, 2026 and June 29, 2025.
Three months endedSix months ended
(In thousands)June 28, 2026June 29, 2025June 28, 2026June 29, 2025
Interest cost$1,876 $1,970 $3,763 $3,939 
Expected return on plan assets(1,905)(2,236)(3,801)(4,471)
Amortization of net actuarial loss— — — — 
Administrative fees— 213 — 425 
Total net periodic (benefit) expense$(29)$(53)$(38)$(107)
Discount rate5.20 %5.40 %5.20 %5.40 %
Rate of compensation increaseN/AN/AN/AN/A
Expected return on plan assets4.85 %5.75 %4.85 %5.75 %