Organization and Operations (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2018 shares	Jun. 30, 2018 shares	Sep. 30, 2019 $ / shares shares	Dec. 31, 2018 $ / shares shares
Organization and Operations [Line Items]
Number of reportable segments			2
Preferred stock, shares authorized (in shares)			9,333,333
Common Class A [Member]
Organization and Operations [Line Items]
Issuance of shares (in shares)	16,668,000	16,668,000
Common stock, shares authorized (in shares)			140,000,000	140,000,000
Common stock, par value (in dollars per share) | $ / shares			$ 0.01	$ 0.01
Common Class B [Member]
Organization and Operations [Line Items]
Common stock, shares authorized (in shares)			35,000,000	35,000,000
Common stock, par value (in dollars per share) | $ / shares			$ 0.01	$ 0.01