Summary of Significant Accounting Policies (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Jan. 01, 2022	Aug. 14, 2020	Jan. 01, 2020	Dec. 31, 2018	Sep. 11, 2018
Property, Plant and Equipment [Line Items]
Requisite service period	3 years
Goodwill and Intangible Assets [Abstract]
Goodwill, Impairment Loss	$ 0	$ 0	$ 0
Impairment of Intangible Assets (Excluding Goodwill)	0	0	0
ROU asset	33,353,000	38,539,000
Operating lease liability	35,441,000	39,419,000
Accounts Receivable, Allowance for Credit Loss	2,944,000	1,065,000	464,000				$ 810,000
Total stockholders’ equity	364,765,000	394,078,000	381,015,000
Long-term debt, net	326,126,000	183,624,000
Retained Earnings
Goodwill and Intangible Assets [Abstract]
Total stockholders’ equity	271,732,000	219,641,000	189,775,000				152,650,000
Additional Paid-in Capital
Goodwill and Intangible Assets [Abstract]
Total stockholders’ equity	423,235,000	459,866,000	455,465,000				437,250,000
Cumulative Effect, Period of Adoption, Adjustment [Member]
Goodwill and Intangible Assets [Abstract]
Accounts Receivable, Allowance for Credit Loss		0	423,000				$ 0
Cumulative Effect, Period of Adoption, Adjustment [Member] | Subsequent Event
Goodwill and Intangible Assets [Abstract]
Long-term debt, net				$ 66,200,000
Deferred Income Tax Liabilities, Net				16,800,000
Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounts Receivable
Goodwill and Intangible Assets [Abstract]
Total stockholders’ equity						$ (400,000)
Cumulative Effect, Period of Adoption, Adjustment [Member] | Retained Earnings
Goodwill and Intangible Assets [Abstract]
Total stockholders’ equity	$ 0	(315,000)	$ 0			$ (300,000)
Cumulative Effect, Period of Adoption, Adjustment [Member] | Retained Earnings | Subsequent Event
Goodwill and Intangible Assets [Abstract]
Total stockholders’ equity				2,100,000
Cumulative Effect, Period of Adoption, Adjustment [Member] | Additional Paid-in Capital | Subsequent Event
Goodwill and Intangible Assets [Abstract]
Total stockholders’ equity				$ 51,500,000
Minimum
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment, Useful Life	1 year
Goodwill and Intangible Assets [Abstract]
Finite-Lived Intangible Asset, Useful Life	1 year
Maximum
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment, Useful Life	7 years
Goodwill and Intangible Assets [Abstract]
Finite-Lived Intangible Asset, Useful Life	10 years
Convertible Debt | Convertible Senior Notes Due 2023
Property, Plant and Equipment [Line Items]
Percent rate stated, percentage	2.375%							2.375%
Goodwill and Intangible Assets [Abstract]
Long-term debt, net	$ 0	4,585,000
Convertible Debt | Convertible Senior Notes Due 2025
Property, Plant and Equipment [Line Items]
Percent rate stated, percentage	1.25%				1.25%
Goodwill and Intangible Assets [Abstract]
Long-term debt, net	$ 19,152,000	179,039,000
Convertible Debt | Convertible Senior Notes Due 2026
Property, Plant and Equipment [Line Items]
Percent rate stated, percentage	0.125%
Goodwill and Intangible Assets [Abstract]
Long-term debt, net	$ 306,974,000	$ 0