Recent accounting pronouncements - Narrative (Details) - USD ($) $ in Thousands |
3 Months Ended | ||
|---|---|---|---|
Mar. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
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| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | |||
| Tax benefit | $ 26,861 | $ 16,046 | |
| Subsequent Event | Accounting Standards Update 2016-09 | Pro Forma | |||
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | |||
| Tax benefit | $ (2,100) | ||
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition 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. No definition available.
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