Taxation	9 Months Ended
Sep. 30, 2018
Income Tax Disclosure [Abstract]
TAXATION	TAXATION At September 30, 2018, the total amount of gross unrecognized tax benefits was $19.2 million as compared to the December 31, 2017 total of $19.6 million. At December 31, 2017, the company had not completed the accounting for the tax effects of enacting the Tax Cuts and Jobs Act (the "2017 Tax Act") and therefore recognized a provisional income tax benefit of $130.7 million. As of September 30, 2018, the company has refined its estimate related to the deductibility of executive compensation based on recent IRS proposed guidance, and recognized additional income tax expense of $1.5 million in the quarter. In accordance with Staff Accounting Bulletin No. 118, the company is required to complete its assessment and finalize the accounting in the fourth quarter of 2018 and though unlikely, the final amounts could differ from the estimates recorded to date as additional guidance continues to be issued.

Taxation

9 Months Ended

Sep. 30, 2018

At September 30, 2018, the total amount of gross unrecognized tax benefits was $19.2 million as compared to the December 31, 2017 total of $19.6 million. At December 31, 2017, the company had not completed the accounting for the tax effects of enacting the Tax Cuts and Jobs Act (the "2017 Tax Act") and therefore recognized a provisional income tax benefit of $130.7 million. As of September 30, 2018, the company has refined its estimate related to the deductibility of executive compensation based on recent IRS proposed guidance, and recognized additional income tax expense of $1.5 million in the quarter. In accordance with Staff Accounting Bulletin No. 118, the company is required to complete its assessment and finalize the accounting in the fourth quarter of 2018 and though unlikely, the final amounts could differ from the estimates recorded to date as additional guidance continues to be issued.