Commitments and Contingencies Disclosure [Line Items]

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- Definition

Lease Agreement Expiration Year

+ References

No definition available.

+ Details

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- Definition

Lease Agreements Expiration Year

+ References

No definition available.

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- Definition

Licensing Rights Expiration Date

+ References

No definition available.

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- Definition

Number of leased properties

+ References

No definition available.

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- Definition

Operating Leases Annual Lease Payments

+ References

No definition available.

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- Definition

The amount of revenue recognized for the period under subleasing arrangements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 55
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6584307&loc=d3e41620-112719

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- Definition

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717

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- Definition

Best estimate of the loss exposure for reasonably possible environmental contingencies at an individual site for which no accrual has been recorded.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
-SubTopic 30
-Section 50
-Paragraph 10
-Subparagraph (c),(d)(2)
-URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13237-110859

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Commitments and Contingencies - Additional Information (Detail)		12 Months Ended
	Dec. 11, 2015 USD ($)	Dec. 31, 2016 USD ($) Property	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Commitments and Contingencies Disclosure [Line Items]
Expiration year of lease agreements		2029
Rent and related expense		$ 16,600,000	$ 17,400,000	$ 15,800,000
Sublease rental income		$ 108,000	$ 0	$ 0
Number of leased properties \| Property		1
Lease payments		$ 434,000
Lease agreement expiration year		2020
Royalty license expiration year		2023
Capital cost
Commitments and Contingencies Disclosure [Line Items]
Remedial alternative, EPA preferred remedy	$ 7,300,000