Shareholders' Equity, Noncontrolling Interests and Other Comprehensive Loss - Share Repurchases - Additional Information (Details) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019	Dec. 31, 2018
Stockholders Equity Including Portion Attributable To Noncontrolling Interest [Abstract]
Authorized amount			$ 200,000,000.0
Number of shares repurchased during period (in shares)	1,219,065	0
Shares repurchased during period	$ 22,386,000
Stock repurchase fees	$ 100,000
Weighted Average Share Price	$ 18.29
Remaining authorized repurchase amount	$ 122,600,000