Goodwill and Other Intangible Assets - Intangible Assets (Details) - USD ($)	3 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2019	Dec. 31, 2018
Intangible Assets
Intangible asset impairment charge		$ 0
Weighted Average Life		15 years 8 months 12 days
Intangible amortization expense		$ 4,635,000	$ 4,656,000
Intangible assets subject to amortization, Cost		66,376,000	66,376,000
Intangible assets subject to amortization, Accumulated Amortization		(35,574,000)	(30,939,000)
Intangible assets subject to amortization, Net Book Value		$ 30,802,000	35,437,000
Customer relationships
Intangible Assets
Intangible asset impairment charge	$ 1,249,000
Weighted Average Life		17 years 2 months 12 days
Intangible assets subject to amortization, Cost		$ 55,454,000	55,454,000
Intangible assets subject to amortization, Accumulated Amortization		(28,865,000)	(25,587,000)
Intangible assets subject to amortization, Net Book Value		$ 26,589,000	29,867,000
Technology and software
Intangible Assets
Weighted Average Life		8 years
Intangible assets subject to amortization, Cost		$ 7,101,000	7,101,000
Intangible assets subject to amortization, Accumulated Amortization		(4,952,000)	(4,024,000)
Intangible assets subject to amortization, Net Book Value		$ 2,149,000	3,077,000
Trademarks
Intangible Assets
Weighted Average Life		8 years 8 months 12 days
Intangible assets subject to amortization, Cost		$ 3,330,000	3,330,000
Intangible assets subject to amortization, Accumulated Amortization		(1,266,000)	(877,000)
Intangible assets subject to amortization, Net Book Value		$ 2,064,000	2,453,000
Non-compete agreements
Intangible Assets
Weighted Average Life		5 years
Intangible assets subject to amortization, Cost		$ 491,000	491,000
Intangible assets subject to amortization, Accumulated Amortization		$ (491,000)	(451,000)
Intangible assets subject to amortization, Net Book Value			$ 40,000