Employee Benefit Plans - Benefit Payments Expect to Pay from Pension Plans (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]
Fiscal 2015	$ 4,291
Fiscal 2016	4,266
Fiscal 2017	4,115
Fiscal 2018	3,775
Fiscal 2019	3,416
Fiscal 2020 - 2024	$ 15,890

Defined Benefit Plan, Expected Future Benefit Payments, Year Six Through Ten

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- Definition

Amount of benefits expected to be paid in the next fiscal year following the latest fiscal year from a defined benefit plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (f)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920

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- Definition

Amount of benefits expected to be paid in the fifth fiscal year following the latest fiscal year from a defined benefit plan.

+ References

+ Details

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- Definition

Amount of benefits expected to be paid in the fourth fiscal year following the latest fiscal year from a defined benefit plan.

+ References

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- Definition

Amount of benefits expected to be paid in the third fiscal year following the latest fiscal year from a defined benefit plan.

+ References

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- Definition

Amount of benefits expected to be paid in the second fiscal year following the latest fiscal year from a defined benefit plan.

+ References

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