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Notes Payable - Note Repayment (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended
--- | --- | ---
Jan. 31, 2018 | Mar. 31, 2018
Debt |  |
Principal payments on notes payable |  | $ 350,000
Notes Payable | 2.000% notes, issued in October 2012 and due in January 2018 |  |
Debt |  |
Principal payments on notes payable | $ 350,000 |

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- Definition The cash outflow for a borrowing supported by a written promise to pay an obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585 + Details
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- Details
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- Details
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