Asset Impairment Charges and Facility Closing and Reorganization Costs - Facility Closing and Reorganization Costs (Detail) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Restructuring Reserve [Roll Forward]
Charges and Adjustments	$ 9,286	$ 1,166
Restructuring Charges, Cash
Restructuring Reserve [Roll Forward]
Accrued Charges at Beginning Balance	7,542
Charges and Adjustments	7,397
Payments	(2,465)
Accrued Charges at Ending Balance	12,474
Restructuring Charges, Cash \| Workforce Reduction Costs
Restructuring Reserve [Roll Forward]
Accrued Charges at Beginning Balance	3,610
Charges and Adjustments	5,688
Payments	(428)
Accrued Charges at Ending Balance	8,870
Restructuring Charges, Cash \| Shutdown Costs
Restructuring Reserve [Roll Forward]
Accrued Charges at Beginning Balance	0
Charges and Adjustments	1,593
Payments	(1,593)
Accrued Charges at Ending Balance	0
Restructuring Charges, Cash \| Lease Obligations After Shutdown
Restructuring Reserve [Roll Forward]
Accrued Charges at Beginning Balance	3,932
Charges and Adjustments	69
Payments	(397)
Accrued Charges at Ending Balance	3,604
Restructuring Charges, Cash \| Other
Restructuring Reserve [Roll Forward]
Accrued Charges at Beginning Balance	0
Charges and Adjustments	47
Payments	(47)
Accrued Charges at Ending Balance	0
Restructuring Charges, Noncash Charges
Restructuring Reserve [Roll Forward]
Charges and Adjustments	1,889
Restructuring Charges, Noncash Charges \| Other
Restructuring Reserve [Roll Forward]
Charges and Adjustments	6
Restructuring Charges, Noncash Charges \| Write-down of assets
Restructuring Reserve [Roll Forward]
Charges and Adjustments	1,816
Restructuring Charges, Noncash Charges \| Gain on sale of related assets
Restructuring Reserve [Roll Forward]
Charges and Adjustments	$ 67

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3536-108585

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 5.P.3)
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 5.P.4(b))
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 5.P.4(b))
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
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