The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Goodwill and Intangible Assets - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Intangible assets, net	$ 221,223		$ 221,223		$ 243,351
Amortization expense for intangible assets	10,000	$ 10,600	20,100	$ 21,200
Estimated amortization expense for the remainder of 2021	20,000		20,000
Estimated amortization expense for 2022	39,000		39,000
Estimated amortization expense for 2023	39,000		39,000
Estimated amortization expense for 2024	34,000		34,000
Estimated amortization expense for 2025	28,000		28,000
Estimated amortization expense for 2026	27,000		27,000
Global Solutions segment
Finite-Lived Intangible Assets [Line Items]
Intangible assets, net	55,100		55,100
Global Products segment
Finite-Lived Intangible Assets [Line Items]
Intangible assets, net	$ 166,000		$ 166,000