Goodwill and Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Goodwill
Balance at beginning of period		$ 577,756	$ 1,065,741
Accumulated Impairment		(487,985)
Balance at end of period	577,756	577,756	1,065,741
Civil
Goodwill
Balance at beginning of period	374,153		429,893
Accumulated Impairment		(55,740)
Goodwill redistribution in connection with reorganization	41,205
Balance at end of period	415,358		429,893
Building
Goodwill
Balance at beginning of period	10,502		420,267
Accumulated Impairment		(409,765)
Goodwill redistribution in connection with reorganization	2,953
Balance at end of period	13,455		420,267
Specialty Contractors
Goodwill
Balance at beginning of period		148,943	148,943
Balance at end of period	148,943	148,943	148,943
Management Services
Goodwill
Balance at beginning of period	44,158		66,638
Accumulated Impairment		(22,480)
Goodwill redistribution in connection with reorganization	(44,158)
Balance at end of period			$ 66,638