Impairment Loss (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Property, Plant and Equipment [Line Items]
Goodwill impairment			$ 23,574
Deferred tax benefit	$ 2,472	$ 934	5,838	$ 4,167
EquipmentOne [Member]
Property, Plant and Equipment [Line Items]
Goodwill impairment			23,574
Asset impairment loss	$ 4,669		4,669
Deferred tax benefit			$ 1,798