Property and Equipment, Net - Property and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
Property Plant And Equipment [Line Items]
Property and equipment	$ 1,223,114	$ 1,209,141	$ 1,196,625
Accumulated depreciation and depletion	813,406	801,723	784,135
Property and equipment, net	409,708	407,418	412,490
Equipment and vehicles [Member]
Property Plant And Equipment [Line Items]
Property and equipment	790,942	778,549	768,995
Quarry property [Member]
Property Plant And Equipment [Line Items]
Property and equipment	177,722	182,267	175,418
Land and land improvements [Member]
Property Plant And Equipment [Line Items]
Property and equipment	114,607	108,830	112,028
Building and leasehold improvements [Member]
Property Plant And Equipment [Line Items]
Property and equipment	82,775	82,601	83,727
Office furniture and equipment [Member]
Property Plant And Equipment [Line Items]
Property and equipment	$ 57,068	$ 56,894	$ 56,457