Employee Benefit Plans (Details) - USD ($)	1 Months Ended	3 Months Ended		8 Months Ended	9 Months Ended
	Feb. 05, 2021	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plans, contributions to pension plans	$ 0		$ 0	$ 0	$ 0
Defined benefit plans, service costs	0		0	0	0
Non-US
Defined Benefit Plan Disclosure [Line Items]
Interest cost	99,000	$ 344,000	450,000	926,000	1,313,000
Return on plan assets	(69,000)	(229,000)	(517,000)	(616,000)	(1,510,000)
Recognized net actuarial loss	1,000	0	3,000	0	7,000
Net pension benefit cost (gain)	31,000	115,000	(64,000)	310,000	(190,000)
US
Defined Benefit Plan Disclosure [Line Items]
Interest cost	621,000	1,634,000	1,892,000	4,358,000	5,676,000
Return on plan assets	(1,250,000)	(3,177,000)	(2,919,000)	(8,471,000)	(8,757,000)
Recognized net actuarial loss	282,000	0	716,000	0	2,149,000
Net pension benefit cost (gain)	$ (347,000)	$ (1,543,000)	$ (311,000)	$ (4,113,000)	$ (932,000)