Other Intangible, Net and Goodwill (Tables)

9 Months Ended

Sep. 30, 2017

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	$	10,800	$	1,510	$	9,290
Tradename	0.5-6	7,800		4,969		2,831
Covenants not to compete	1-10	4,200		1,291		2,909
		$	22,800	$	7,770	$	15,030

Goodwill [Line Items]

Schedule of Goodwill [Table Text Block]

	(in thousands)
Balance at December 31, 2016	$	100,212
Acquisition	31,973
Balance at September 30, 2017	$	132,185