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Property and Equipment (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment, Net [Abstract]
Right of use assets - finance leases	$ 3,530,000	$ 3,823,000
Property, plant and equipment, gross	277,926,000	313,478,000
Less: accumulated depreciation	(183,921,000)	(199,810,000)
Property and equipment, net of accumulated depreciation	94,005,000	113,668,000
Depreciation expense	17,064,000	24,484,000
Asset impairment charges	$ 0	15,100,000
Minimum
Property, Plant and Equipment, Net [Abstract]
Estimated useful life, property and equipment	2 years
Estimated useful life, finance leases	2 years
Maximum
Property, Plant and Equipment, Net [Abstract]
Estimated useful life, property and equipment	30 years
Estimated useful life, finance leases	6 years
Land
Property, Plant and Equipment, Net [Abstract]
Property, plant and equipment, gross	$ 7,502,000	8,476,000
Buildings and leasehold improvements
Property, Plant and Equipment, Net [Abstract]
Property, plant and equipment, gross	$ 85,810,000	93,645,000
Buildings and leasehold improvements | Minimum
Property, Plant and Equipment, Net [Abstract]
Estimated useful life, property and equipment	5 years
Buildings and leasehold improvements | Maximum
Property, Plant and Equipment, Net [Abstract]
Estimated useful life, property and equipment	30 years
Computer equipment
Property, Plant and Equipment, Net [Abstract]
Property, plant and equipment, gross	$ 43,853,000	44,607,000
Computer equipment | Minimum
Property, Plant and Equipment, Net [Abstract]
Estimated useful life, property and equipment	3 years
Computer equipment | Maximum
Property, Plant and Equipment, Net [Abstract]
Estimated useful life, property and equipment	5 years
Machinery & equipment
Property, Plant and Equipment, Net [Abstract]
Property, plant and equipment, gross	$ 124,254,000	148,019,000
Machinery & equipment | Minimum
Property, Plant and Equipment, Net [Abstract]
Estimated useful life, property and equipment	5 years
Machinery & equipment | Maximum
Property, Plant and Equipment, Net [Abstract]
Estimated useful life, property and equipment	10 years
Furniture & fixtures
Property, Plant and Equipment, Net [Abstract]
Property, plant and equipment, gross	$ 5,961,000	6,275,000
Furniture & fixtures | Minimum
Property, Plant and Equipment, Net [Abstract]
Estimated useful life, property and equipment	3 years
Furniture & fixtures | Maximum
Property, Plant and Equipment, Net [Abstract]
Estimated useful life, property and equipment	10 years
Vehicles
Property, Plant and Equipment, Net [Abstract]
Property, plant and equipment, gross	$ 2,944,000	3,835,000
Vehicles | Minimum
Property, Plant and Equipment, Net [Abstract]
Estimated useful life, property and equipment	3 years
Vehicles | Maximum
Property, Plant and Equipment, Net [Abstract]
Estimated useful life, property and equipment	5 years
Rental equipment
Property, Plant and Equipment, Net [Abstract]
Property, plant and equipment, gross	$ 2,112,000	3,830,000
Rental equipment | Minimum
Property, Plant and Equipment, Net [Abstract]
Estimated useful life, property and equipment	3 years
Rental equipment | Maximum
Property, Plant and Equipment, Net [Abstract]
Estimated useful life, property and equipment	10 years
Construction in progress
Property, Plant and Equipment, Net [Abstract]
Property, plant and equipment, gross	$ 1,960,000	$ 968,000

X

- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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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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Amount, before accumulated amortization, of right-of-use asset from finance lease.

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Term of lessee's finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of accumulated depreciation and amortization from plant, property, and equipment and right-of-use asset from finance lease.

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