Stockholders' Equity and Earnings per Share - Stock (Details)	6 Months Ended	12 Months Ended
	Jun. 30, 2021 Vote $ / shares shares	Dec. 31, 2020 Vote $ / shares shares
Stockholders' Equity and Members' Equity
Common stock shares authorized (in shares)	500,000,000	500,000,000
Common stock par value (in dollars per share) | $ / shares	$ 0.001	$ 0.001
Preferred stock shares authorized (in shares)	100,000,000	100,000,000
Preferred stock par value (in dollars per share) | $ / shares	$ 0.001	$ 0.001
Common stock number of voting rights | Vote	1	1
Common stock shares issued (in shares)	132,634,672	132,532,383
Common stock shares outstanding (in shares)	132,634,672	132,532,383
Preferred stock shares issued (in shares)	0	0
Preferred stock shares outstanding (in shares)	0	0