Earnings Per Share - Additional Information (Detail)		12 Months Ended
	Jan. 04, 2016 USD ($) shares	Dec. 31, 2017 USD ($) shares	Dec. 31, 2016 shares	Dec. 31, 2015 shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from the computation of diluted earnings per share		1,100,000	900,000	6,800,000
Ordinary shares related to the vesting of restricted stock units		2,600,000	2,300,000
Warrants vested		0	2,200,000
Pace Plc
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Business combination potential stock issue, shares	47,700,000	47,700,000
Business combination potential stock issue, value | $		$ 1,434,700,000
Business combination, common stock conversion ratio	0.1455
Business combination, stock issued during period, value, per each share | $	$ 30.08