SEGMENT REPORTING

The Company's reportable business segments are: Service Centers, Innovative Pumping Solutions and Supply Chain Services. The Service Centers segment is engaged in providing maintenance, MRO products, equipment and integrated services, including logistics capabilities, to industrial customers. The Service Centers segment provides a wide range of MRO products in the rotating equipment, bearing, power transmission, hose, fluid power, metal working, fastener, industrial supply, safety products and safety services categories. The Innovative Pumping Solutions segment fabricates and assembles custom-made pump packages, remanufactures pumps and manufactures branded private label pumps. The Supply Chain Services segment provides a wide range of MRO products and manages all or part of a customer's supply chain, including warehouse and inventory management.

The high degree of integration of the Company's operations necessitates the use of a substantial number of allocations and apportionments in the determination of business segment information. Sales are shown net of intersegment eliminations.

The following table sets out financial information related to the Company's segments excluding amortization (in thousands):



Three Months Ended March 31, 2019
	SC		IPS		SCS		Total
Product sales (recognized at a point in time)	$	171,668	$	—	$	46,385	$	218,053
Inventory management services (recognized over contract life)	—		—		3,938		3,938
Staffing services (day-rate basis)	14,511		—		—		14,511
Customized pump production (recognized over time)	—		74,723		—		74,723
Total Revenue	$	186,179	$	74,723	$	50,323	$	311,225
Income from operations	$	18,980	$	6,799	$	4,086	$	29,865



Three Months Ended March 31, 2018
	SC		IPS		SCS		Total
Product sales (recognized at a point in time)	$	160,544	$	—	$	39,702	$	200,246
Inventory management services (recognized over contract life)	—		—		3,230		3,230
Staffing services (day-rate basis)	14,818		—		—		14,818
Customized pump production (recognized over time)	—		67,642		—		67,642
Total Revenue	$	175,362	$	67,642	$	42,932	$	285,936
Income from operations	$	15,830	$	6,382	$	4,054	$	26,266

The following table presents reconciliations of operating income for reportable segments to the consolidated income before taxes (in thousands):



	Three Months Ended March 31,
	2019			2018
Operating income for reportable segments	$	29,865		$	26,266
Adjustment for:
Amortization of intangible assets	3,814			4,358
Corporate expenses	11,235			10,759
Income from operations	$	14,816		$	11,149
Interest expense	5,040			5,041
Other income, net	(33		)	(22		)
Income before income taxes	$	9,809		$	6,130