Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position.

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- Definition

Target allocation maximum percentage of investments of this type to total plan assets presented on a weighted average basis.

+ 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 (d)(i)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 5

-Subparagraph (c)(i)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e2446-114920

+ Details

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- Definition

Target allocation minimum percentage of investments of this type to total plan assets presented on a weighted average basis.

+ References

+ Details

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- Definition

The amount of the cost recognized during the period for defined contribution plans.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 70

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942

+ Details

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- Details

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Retirement Benefit Plans - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Expense related to defined contribution plan	$ 32.8	$ 29.6	$ 26.5
U S and Puerto Rico [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Contribution towards defined benefit plans	0
U S and Puerto Rico [Member] \| Equity Securities [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Minimum range of assets held by defined benefit plan for cash funds	40.00%
Maximum range of assets held by defined benefit plan for cash funds	45.00%
U S and Puerto Rico [Member] \| Debt Securities [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Minimum range of assets held by defined benefit plan for cash funds	30.00%
Maximum range of assets held by defined benefit plan for cash funds	35.00%
U S and Puerto Rico [Member] \| Non - Traditional Investments [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Minimum range of assets held by defined benefit plan for cash funds	20.00%
Maximum range of assets held by defined benefit plan for cash funds	25.00%
Foreign-based Defined Benefit Plans [Member] \| Equity Securities [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Minimum range of assets held by defined benefit plan for cash funds	20.00%
Maximum range of assets held by defined benefit plan for cash funds	37.00%
Foreign-based Defined Benefit Plans [Member] \| Debt Securities [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Minimum range of assets held by defined benefit plan for cash funds	30.00%
Maximum range of assets held by defined benefit plan for cash funds	50.00%
Foreign-based Defined Benefit Plans [Member] \| Real Estate [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Minimum range of assets held by defined benefit plan for cash funds	15.00%
Maximum range of assets held by defined benefit plan for cash funds	24.00%
Foreign-based Defined Benefit Plans [Member] \| Cash Fund [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Minimum range of assets held by defined benefit plan for cash funds	3.00%
Maximum range of assets held by defined benefit plan for cash funds	15.00%
Foreign-based Defined Benefit Plans [Member] \| Other Funds [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Minimum range of assets held by defined benefit plan for cash funds	0.00%
Maximum range of assets held by defined benefit plan for cash funds	12.00%
Foreign Defined Benefit Plan [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Contribution towards defined benefit plans	$ 14.0