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Property and Equipment - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Property Plant And Equipment [Line Items]
Depreciation expense	$ 10,700	$ 11,500	$ 21,600	$ 23,700
Amortization expense on finance lease assets	$ 1,068	$ 923	2,138	1,841
Property and equipment purchased through accounts payable and accrued liabilities, increased or decreased amount			$ 4,200	$ 7,100

X

- Definition

Future cash outflow to pay for purchases of fixed assets that have occurred.

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- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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- Definition

Amount of amortization expense attributable to right-of-use asset from finance lease.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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