Other Intangible, Net and Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Change In Gross Amount of Identifiable Intangible Assets	$ 0
Finite-Lived Intangible Assets, Amortization Expense	600	$ 700
Finite-Lived Intangible Assets [Line Items]
Carrying amount of goodwill	132,410		$ 132,410
Gross Amount	25,900
Accumulated Amortization	12,008
Net Intangible Assets	$ 13,892
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Amortization period (years)	20 years
Gross Amount	$ 13,600
Accumulated Amortization	2,500
Net Intangible Assets	11,100
Tradename
Finite-Lived Intangible Assets [Line Items]
Gross Amount	8,100
Accumulated Amortization	7,329
Net Intangible Assets	771
Covenants Not to Compete
Finite-Lived Intangible Assets [Line Items]
Gross Amount	4,200
Accumulated Amortization	2,179
Net Intangible Assets	$ 2,021
Maximum [Member] | Tradename
Finite-Lived Intangible Assets [Line Items]
Amortization period (years)	6 years
Maximum [Member] | Covenants Not to Compete
Finite-Lived Intangible Assets [Line Items]
Amortization period (years)	10 years
Minimum [Member] | Tradename
Finite-Lived Intangible Assets [Line Items]
Amortization period (years)	6 months
Minimum [Member] | Covenants Not to Compete
Finite-Lived Intangible Assets [Line Items]
Amortization period (years)	1 year