Segment Reporting - Reconciliation of Segment Information to Consolidated Financial Statements (Detail) - USD ($) $ in Thousands		3 Months Ended								12 Months Ended
		Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Operating income		$ 30,831	$ 30,309	$ 38,961	$ 46,059	$ 9,932	$ 28,738	$ 42,916	$ 44,607	$ 146,160	$ 126,193	$ 122,790
Business restructuring and asset impairments										(3,069)	(7,064)
Interest expense, net		(2,826)	(2,763)	(2,863)	(2,992)	(3,350)	(2,824)	(3,417)	(3,614)	(11,444)	(13,205)	(14,533)
Loss from equity in joint ventures												(6,985)
Other, net										4,521	828	1,584
Consolidated income before income taxes		28,532	$ 29,312	$ 37,063	$ 44,330	7,009	$ 27,143	$ 39,196	$ 40,468	139,237	113,816	102,856
Assets		1,470,861				1,353,890				1,470,861	1,353,890	1,238,392
Capital expenditures										78,613	103,076	119,349
Depreciation and amortization										79,022	74,967	66,985
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating income										212,743	207,282	189,419
Assets		1,311,932				1,208,697				1,311,932	1,208,697	1,124,918
Capital expenditures										75,780	100,205	116,867
Depreciation and amortization										77,119	73,122	65,322
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Business restructuring and asset impairments	[1]									(3,069)	(7,064)
Unallocated corporate expenses	[2]									(63,514)	(74,025)	(66,629)
Unallocated corporate assets		$ 158,929				$ 145,193				158,929	145,193	113,474
Unallocated corporate expenditures										2,833	2,871	2,482
Unallocated corporate depreciation expenses										$ 1,903	$ 1,845	$ 1,663

[1] See Note 22 regarding business restructuring and asset impairment costs.

[2] Unallocated corporate expenses primarily comprise corporate administrative expenses (e.g., corporate finance, legal, human resources, information systems, deferred compensation and environmental remediation) that are not included in segment operating income and not used to evaluate segment performance.