v3.10.0.1

Subsequent events (Details) - Subsequent events - Convertible Senior Notes $ / shares in Units, $ in Thousands | 1 Months Ended |
--- | --- | ---
Oct. 31, 2018 USD ($) D $ / shares $ / EquityInstruments | Oct. 02, 2018 $ / shares
Subsequent events |  |
Gross proceeds from convertible senior notes | $ | $ 201,250 |
Percentage of interest rate per annum | 1.00% |
Conversion ratio | 0.0236323 |
Conversion price per share | $ / shares | $ 42.31 |
Effective conversion price, percentage of premium to share closing price | 30.00% |
Share price | $ / shares |  | $ 32.55
Percentage of redemption price | 100.00% |
Threshold percentage of stock price trigger | 130.00% |
Threshold trading days | D | 20 |
Threshold consecutive trading days | D | 30 |
Call option |  |
Subsequent events |  |
Derivative cap price (in dollars per share) | $ / EquityInstruments | 65.10 |
Derivative cap price, minimum percentage of premium on share price | 100.00% |
Payment of derivative capped transactions | $ | $ 23,967 |

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- Definition Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instrument must exceed threshold percentage for specified number of trading days to trigger conversion feature. + References No definition available. + Details
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- Definition Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion. + References No definition available. + Details
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- Definition Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature. + References No definition available. + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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 The cash inflow from the issuance of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585 + Details
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