DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS (Details)		9 Months Ended
	Jul. 24, 2017 shares	Sep. 30, 2018 subsidiary shares
Number of subsidiaries | subsidiary		4
Class A Common Stock | IPO
Common stock issued to initial stockholder (in shares)	46,000,000
Class A Common Stock | Over-allotment option
Common stock issued to initial stockholder (in shares)		14,950,000