Segment Information

3 Months Ended

Mar. 31, 2015

Segment Reporting [Abstract]

Segment Information

Segment Information

We have the following reportable segments which provide services associated with the design, integration, installation, start-up, operation and maintenance of various systems: (a) United States electrical construction and facilities services (involving systems for electrical power transmission and distribution; premises electrical and lighting systems; low-voltage systems, such as fire alarm, security and process control; voice and data communication; roadway and transit lighting; and fiber optic lines); (b) United States mechanical construction and facilities services (involving systems for heating, ventilation, air conditioning, refrigeration and clean-room process ventilation; fire protection; plumbing, process and high-purity piping; controls and filtration; water and wastewater treatment; central plant heating and cooling; cranes and rigging; millwrighting; and steel fabrication, erection and welding); (c) United States building services; (d) United States industrial services; and (e) United Kingdom building services. The “United States building services” and "United Kingdom building services" segments principally consists of those operations which provide a portfolio of services needed to support the operation and maintenance of customers’ facilities, including commercial and government site-based operations and maintenance; facility maintenance and services, including reception, security and catering services; outage services to utilities and industrial plants; military base operations support services; mobile maintenance and services; floor care and janitorial services; landscaping, lot sweeping and snow removal; facilities management; vendor management; call center services; installation and support for building systems; program development, management and maintenance for energy systems; technical consulting and diagnostic services; infrastructure and building projects for federal, state and local governmental agencies and bodies; and small modification and retrofit projects, which services are not generally related to customers' construction programs. The segment "United States industrial services" principally consists of those operations which provide industrial maintenance and services, mainly for refineries and petrochemical plants, including on-site repairs, maintenance and service of heat exchangers, towers, vessels and piping; design, manufacturing, repair and hydro blast cleaning of shell and tube heat exchangers and related equipment; refinery turnaround planning and engineering services; specialty welding services; overhaul and maintenance of critical process units in refineries and petrochemical plants; and specialty technical services for refineries and petrochemical plants.

The following tables present information about industry segments and geographic areas for the three months ended March 31, 2015 and 2014 (in thousands):

	For the three months ended March 31,
	2015			2014
Revenues from unrelated entities:
United States electrical construction and facilities services	$	318,994		$	308,136
United States mechanical construction and facilities services	511,026			513,011
United States building services	439,492			448,044
United States industrial services	232,725			231,958
Total United States operations	1,502,237			1,501,149
United Kingdom building services	86,950			89,390
Total worldwide operations	$	1,589,187		$	1,590,539
Total revenues:
United States electrical construction and facilities services	$	320,238		$	314,797
United States mechanical construction and facilities services	513,367			519,111
United States building services	449,728			457,964
United States industrial services	233,316			232,474
Less intersegment revenues	(14,412		)	(23,197		)
Total United States operations	1,502,237			1,501,149
United Kingdom building services	86,950			89,390
Total worldwide operations	$	1,589,187		$	1,590,539

	For the three months ended March 31,
	2015			2014
Operating income (loss):
United States electrical construction and facilities services	$	16,674		$	21,655
United States mechanical construction and facilities services	20,901			19,106
United States building services	20,978			20,298
United States industrial services	12,833			23,394
Total United States operations	71,386			84,453
United Kingdom building services	2,378			3,363
Corporate administration	(18,426		)	(15,467		)
Restructuring expenses	(8		)	(225		)
Total worldwide operations	55,330			72,124
Other corporate items:
Interest expense	(2,216		)	(2,248		)
Interest income	176			234
Income from continuing operations before income taxes	$	53,290		$	70,110

	March 31, 2015		December 31, 2014
Total assets:
United States electrical construction and facilities services	$	338,325	$	332,150
United States mechanical construction and facilities services	777,328		793,056
United States building services	745,226		737,082
United States industrial services	932,957		954,018
Total United States operations	2,793,836		2,816,306
United Kingdom building services	132,469		130,340
Corporate administration	389,277		442,321
Total worldwide operations	$	3,315,582	$	3,388,967