Transaction and Other Costs (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Transaction and Other Costs.
Demolition Costs	$ 439		$ 1,447
Integration and severance costs	222	$ 1,351	462	$ 2,660
Completed, potential and pursued transaction expenses	1,609	21	4,051	21
Other				4,000
Transaction and other costs	$ 2,270	$ 1,372	$ 5,960	$ 6,681

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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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