Restructuring Charges - Summary of Restructuring Charges (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 0	$ 49,994	$ 0
Severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges		25,088
Contract exit costs and other
Restructuring Cost and Reserve [Line Items]
Restructuring charges		13,993
Pension and termination benefit charges
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 10,913