Income Taxes - Summary of Company's Tax Position (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2017 |
Sep. 30, 2017 |
Jun. 30, 2017 |
Mar. 31, 2017 |
Dec. 31, 2016 |
Sep. 30, 2016 |
Jun. 30, 2016 |
Mar. 31, 2016 |
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
|
Income Tax Disclosure [Abstract] | |||||||||||
Income (Loss) Before Provision for Taxes | $ 25,663 | $ (15,614) | $ (2,083) | $ 2,088 | $ 23,982 | $ (1,960) | $ (10,255) | $ 2,733 | $ 10,054 | $ 14,500 | $ (5,936) |
Provision for Taxes | $ 38,380 | $ 9,392 | $ 239 | ||||||||
Effective Income Tax Rate | 381.70% | 64.80% | (4.00%) |