Segment Information (Tables)

3 Months Ended

Mar. 31, 2018

Segment Information [Abstract]

Schedule of Revenue and (Loss) Income Before Taxes by Segment

		Three months ended March 31, 2018
	A&M		Other			Consolidated
Service revenues	$	148,405	$	27,611		$	176,016
Revenue from inventory sales		84,162		-			84,162
Total revenues		232,567		27,611	-		260,178
Costs of services		21,448		15,209			36,657
Cost of inventory sold		75,791		-			75,791
Selling, general and administrative
expenses ("SG&A")		93,002		4,468			97,470
Segment profit	$	42,326	$	7,934		$	50,260
Acquisition-related costs							1,633
D&A expenses							16,191
Gain on disposition of property, plant
and equipment ("PPE")							(345)
Foreign exchange gain							(92)
Operating income						$	32,873
Interest expense							(11,310)
Other income, net							913
Income tax expense							(5,269)
Net income						$	17,207

4.  Segment information (continued)

		Three months ended March 31, 2017
	A&M		Other		Consolidated
Service revenues	$	103,030	$	20,349	$	123,379
Revenue from inventory sales		76,048		-		76,048
Total revenues		179,078		20,349		199,427
Costs of services		12,587		11,753		24,340
Cost of inventory sold		63,401		-		63,401
SG&A expenses		67,111		3,464		70,575
Segment profit	$	35,979	$	5,132	$	41,111
Acquisition-related costs						8,627
D&A expenses						10,338
Gain on disposition of PPE						(721)
Foreign exchange gain						(730)
Operating income					$	23,597
Interest expense						(8,133)
Other income, net						2,284
Income tax expense						(7,315)
Net income					$	10,433

Geographic Information of Revenue

		United States		Canada		Europe		Other		Consolidated
Total revenues for the three months ended:
March 31, 2018	$	135,563	$	65,809	$	34,574	$	24,232	$	260,178
March 31, 2017		112,083		41,492		18,267		27,585		199,427