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Income Taxes - Schedule of Components of Income Taxes (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Income Tax [Line Items] |  |  |
Current tax provision | $ 8,030 | $ 4,955 | $ 634
Deferred tax provision (benefit): | 23,573 | (173,019) | (10,038)
Income tax provision (benefit) | 31,603 | (168,064) | (9,404)
United States Federal |  |  |
Income Tax [Line Items] |  |  |
Current tax provision | 444 | (1,657) | 0
Deferred tax provision (benefit): | (9,315) | (172,873) | 5,785
United States And Local |  |  |
Income Tax [Line Items] |  |  |
Current tax provision | 2 | 98 | (1,520)
Deferred tax provision (benefit): | (2,990) | (7,775) | (3,550)
Foreign |  |  |
Income Tax [Line Items] |  |  |
Current tax provision | 7,584 | 6,514 | 2,154
Deferred tax provision (benefit): | $ 35,878 | $ 7,629 | $ (12,273)

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