Intangible Assets and Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 0
Goodwill	168,295	$ 168,295	$ 132,410
Goodwill, Acquired During Period	0	35,885
Finite-Lived Intangible Assets, Amortization Expense	2,400	2,700	$ 2,500
Finite-Lived Intangible Assets, Gross	41,200	41,200
Finite-Lived Intangible Assets, Accumulated Amortization	16,454	14,064
Finite-Lived Intangible Assets, Net	24,746	27,136
Finite-Lived Intangible Assets, Amortization Expense, Next Rolling Twelve Months	2,400
Finite-Lived Intangible Assets, Amortization Expense, Year Two	2,300
Finite-Lived Intangible Assets, Amortization Expense, Year Three	2,200
Finite-Lived Intangible Assets, Amortization Expense, Year Four	1,900
Finite-Lived Intangible Assets, Amortization Expense, Year Five	1,900
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	23,000	23,000
Finite-Lived Intangible Assets, Accumulated Amortization	4,531	3,221
Finite-Lived Intangible Assets, Net	18,469	19,779
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	12,900	12,900
Finite-Lived Intangible Assets, Accumulated Amortization	8,740	8,260
Finite-Lived Intangible Assets, Net	4,160	4,640
Noncompete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	5,300	5,300
Finite-Lived Intangible Assets, Accumulated Amortization	3,183	2,583
Finite-Lived Intangible Assets, Net	$ 2,117	$ 2,717
Minimum [Member] | Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	15 years	15 years
Minimum [Member] | Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	6 months	6 months
Minimum [Member] | Noncompete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	1 year	1 year
Maximum [Member] | Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	20 years	20 years
Maximum [Member] | Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	10 years	10 years
Maximum [Member] | Noncompete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	10 years	10 years