CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) - shares	6 Months Ended		187 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020
Statement of Stockholders' Equity [Abstract]
Repurchase of common stock (in shares)	1,000,000	23,802	46,357,495