Income Taxes - Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
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| Income Tax Disclosure [Abstract] | |||
| Income tax interest and penalties | $ 6,300 | $ 6,500 | $ 6,100 |
| Reconciliation of Unrecognized Tax Benefits [Roll Forward] | |||
| Balance at beginning of year | 8,728 | 11,048 | 4,637 |
| Additions from business combinations | 0 | 0 | 3,492 |
| Increase to prior year positions | 0 | 0 | (34) |
| Reversal of prior tax positions | (786) | (3,045) | (147) |
| Additions based on tax positions related to current year | 0 | 725 | 3,100 |
| Balance at end of year | $ 7,942 | $ 8,728 | $ 11,048 |
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- References No definition available.
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of unrecognized tax benefits. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of increase in unrecognized tax benefits resulting from acquisitions. No definition available.
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- Definition Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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