STOCKHOLDERS’ EQUITY - Components and Voting Power of Outstanding Common Stock (Detail) - shares	6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Class of Stock [Line Items]
Shares Outstanding	112,250,658
Percentage	100.00%
Class A Common Stock
Class of Stock [Line Items]
Shares Outstanding	111,387,224	82,399,996
Percentage	99.20%
Class B Common Stock
Class of Stock [Line Items]
Shares Outstanding	863,434	37,179,616
Percentage	0.80%