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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Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Goodwill and Intangible Assets, Net - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Additional disclosures
Amortization of intangible assets	$ 15,702	$ 5,179	$ 5,190
Anticipated annual amortization expense for the next five years
2021	24,200
2022	24,200
2023	21,400
2024	21,400
2025	21,400
MDD US Enterprises LLC (Formerly USWM Enterprises)
Goodwill and Intangible Assets Disclosure [Abstract]
Measurement period adjustment	$ 10,184