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Realignment Costs - Realignment Activities Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Restructuring Reserve [Roll Forward]
Balance, beginning of year	$ 491
Realignment costs	10,022	$ (584)	$ 6,778
Payments	(4,542)
Adjustments	269
Balance, end of year	6,240	491
2020 Program
Restructuring Reserve [Roll Forward]
Balance, beginning of year	0
Realignment costs	10,046
Payments	(4,278)
Adjustments	292
Balance, end of year	6,060	0
Prior Program
Restructuring Reserve [Roll Forward]
Balance, beginning of year	491	6,437
Realignment costs	(24)	(584)
Payments	(264)	(5,326)
Adjustments	(23)	(36)
Balance, end of year	$ 180	$ 491	$ 6,437

X

- Definition

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

+ References

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

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