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Debt - Senior Notes (Details) |  |  |  | 3 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
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 |  |  |  |  |  |  |

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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 + Details
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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 + Details
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