Asset Impairment Charges and Facility Closing and Reorganization Costs - Facility Closing and Reorganization Costs (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Restructuring Reserve [Roll Forward]
Charges and Adjustments	$ 9,297	$ 2,709	$ 9,063	$ 9,362
Restructuring Charges, Cash
Restructuring Reserve [Roll Forward]
Accrued Charges at Beginning Balance			10,762
Charges and Adjustments			5,154
Payments			(5,543)
Accrued Charges at Ending Balance	10,373		10,373
Restructuring Charges, Cash | Workforce Reduction Costs
Restructuring Reserve [Roll Forward]
Accrued Charges at Beginning Balance			5,476
Charges and Adjustments			2,482
Payments			(1,855)
Accrued Charges at Ending Balance	6,103		6,103
Restructuring Charges, Cash | Shutdown Costs
Restructuring Reserve [Roll Forward]
Accrued Charges at Beginning Balance			0
Charges and Adjustments			1,614
Payments			(1,614)
Accrued Charges at Ending Balance	0		0
Restructuring Charges, Cash | Lease Obligations After Shutdown
Restructuring Reserve [Roll Forward]
Accrued Charges at Beginning Balance			5,286
Charges and Adjustments			318
Payments			(1,334)
Accrued Charges at Ending Balance	4,270		4,270
Restructuring Charges, Cash | Other
Restructuring Reserve [Roll Forward]
Accrued Charges at Beginning Balance			0
Charges and Adjustments			740
Payments			(740)
Accrued Charges at Ending Balance	$ 0		0
Restructuring Charges, Noncash Charges
Restructuring Reserve [Roll Forward]
Charges and Adjustments			3,909
Restructuring Charges, Noncash Charges | Write-down of assets
Restructuring Reserve [Roll Forward]
Charges and Adjustments			7,872
Restructuring Charges, Noncash Charges | Gain on sale of related assets
Restructuring Reserve [Roll Forward]
Charges and Adjustments			$ (3,963)