Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Statement of Comprehensive Income [Abstract]
Net income including noncontrolling interests		$ 172,507	$ 173,427	$ 127,354
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments		(621)	(957)	(614)
Changes in post retirement plans	[1]	6,865	(16,463)	15,877
Other comprehensive income (loss)		6,244	(17,420)	15,263
Comprehensive income		178,751	156,007	142,617
Less: Comprehensive income attributable to noncontrolling interests		(221)	(4,763)	(3,562)
Comprehensive income attributable to EMCOR Group, Inc.		$ 178,530	$ 151,244	$ 139,055

[1] Net of tax (provision) benefit of $(1.6) million, $4.2 million and $(4.3) million for the years ended December 31, 2015, 2014 and 2013, respectively.