Other Intangible, Net and Goodwill (Tables)

3 Months Ended

Mar. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	Amortization period (years)	Gross Amount		Accumulated Amortization		Net intangible assets
		(in thousands)
Customer relationships	20	$	13,600	$	2,500	$	11,100
Tradename	0.5-6	8,100		7,329		771
Covenants not to compete	1-10	4,200		2,179		2,021
		$	25,900	$	12,008	$	13,892