Face (par) amount of debt instrument at time of issuance.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Fair value amount of debt instrument that was repurchased.

+ References

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The cash outflow for loan and debt issuance costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

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The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

No definition available.

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Debt - Senior Notes (Details)				3 Months Ended
Debt - Senior Notes (Details)	Jan. 15, 2016 USD ($)	Jun. 09, 2015 USD ($)	Jan. 31, 2013 USD ($)	Apr. 02, 2016	Dec. 31, 2015	Jun. 09, 2015 EUR (€)	Dec. 31, 2014 USD ($)	Jan. 17, 2006 USD ($)
2.00% Senior Notes Due January 14, 2022 [Member]
Debt Instrument [Line Items]
Aggregate principal amount of debts \| €						€ 500,000,000
Interest rate percentage				2.00%	2.00%	2.00%
Payment of financing costs		$ 4,218,000
3.85% Senior Notes Due February 1, 2023 [Member]
Debt Instrument [Line Items]
Aggregate principal amount of debts			$ 600,000,000
Interest rate percentage			3.85%	3.85%	3.85%
Payment of financing costs			$ 6,000,000
6.125% Notes, Payable January 15, 2016 [Member]
Debt Instrument [Line Items]
Aggregate principal amount of debts								$ 900,000,000
Interest rate percentage				6.125%	6.125%			6.125%
Senior notes due date				Jan. 15, 2016
Amount of debt repurchased							$ 254,445,000
Repayments of debt	$ 645,555,000