Shareholder's Equity and Dividends (Details Textual)		12 Months Ended
	Aug. 23, 2018 Vote shares	Dec. 31, 2020 USD ($) Vote $ / shares shares	Dec. 31, 2019 USD ($) $ / shares shares	Dec. 31, 2018 USD ($)
Shareholders Equity and Dividends (Textual)
Distributions of non-controlling interest holders | $		$ 10,200,000	$ 27,703,000	$ 4,101,000
Preferred stock, shares issued		0	0
Preferred stock, shares outstanding		0	0
Preferred stock, par value | $ / shares		$ 0.0001	$ 0.0001
Preferred stock, shares authorized		1,000,000	1,000,000
Private Placement [Member]
Shareholders Equity and Dividends (Textual)
Aggregate common shares		11,480,000
Aggregate common shares purchase price | $ / shares		$ 10.00
Aggregate common shares amount | $		$ 114,800,000
Subsidiaries [Member] | General Partner [Member] | OpCo [Member]
Shareholders Equity and Dividends (Textual)
Ownership percentage		100.00%
Subsidiaries [Member] | Limited Partner [Member] | OpCo [Member]
Shareholders Equity and Dividends (Textual)
Ownership percentage		54.00%
Warrants [Member]
Shareholders Equity and Dividends (Textual)
Stock issued common units to contributors		40,000,000
Business combination, description		In addition to the above, the Contributors will be entitled to receive earn-out consideration to be paid in the form of OpCo Common Units (with a corresponding number of shares of Class C Common Stock) if the volume-weighted average price of the trading days during any thirty (30) calendar days (the “30-Day VWAP”) of the Class A Common Stock equals or exceeds certain hurdles set forth in the Contribution Agreement. If the 30-Day VWAP of the Class A Common Stock is $12.50 or more per share at any time within the seven years following the closing, Royal LP will receive (i) an additional 10 million OpCo Common Units (and an equivalent number of shares of Class C Common Stock), plus (ii) an amount of OpCo Common Units (and an equivalent number of shares of Class C Common Stock) equal to (x) the amount by which annual cash dividends paid on each share of Class A Common Stock exceeds $0.50 in each year between the closing and the date the first earn-out is achieved (with any dividends paid in the stub year in which the first earn-out is achieved annualized for purposes of determining what portion of such dividends would have, on an annual basis, exceeded $0.50), multiplied by 10 million, (y) divided by $12.50. If the 30-Day VWAP of the Class A Common Stock is $15.00 or more per share at any time within the seven years following the closing (which $15.00 threshold will be reduced by the amount by which annual cash dividends paid on each share of Class A Common Stock exceeds $0.50 in each year between the closing and the date the earn-out is achieved, but not below $12.50), the Contributors will receive an additional 10 million OpCo Common Units (and an equivalent number of Class C Common Stock).  Upon recognition of the earn-out, as there is no consideration received, the Company would record the payment of the earn-out as adjustments through equity (non-controlling interest and additional-paid-in-capital)
Consideration received | $		$ 0
Warrants [Member] | Royal Entities [Member] | Subsidiaries [Member]
Shareholders Equity and Dividends (Textual)
Additional common units may be issued		10,000,000
Class A common stock [Member]
Shareholders Equity and Dividends (Textual)
Common stock, shares issued		46,107,183	45,963,716
Common stock, shares outstanding		46,107,183	45,963,716
Common stock, shares authorized		240,000,000	240,000,000
Common stock, par value | $ / shares		$ 0.0001	$ 0.0001
Common stock voting, description		Holders of the Company’s Class A Common Stock are entitled to one vote for each share.
Common stock, number of votes per share | Vote		1
Aggregate common shares purchase price | $ / shares		$ 0.0001
Class A common stock [Member] | Royal Entities [Member]
Shareholders Equity and Dividends (Textual)
Common units redemption ratio	100.00%
Class A common stock [Member] | Royal Entities [Member] | Subsidiaries [Member]
Shareholders Equity and Dividends (Textual)
Common units redemption ratio	100.00%
Class A common stock [Member] | Warrants [Member]
Shareholders Equity and Dividends (Textual)
Common units redemption ratio		100.00%
Class C common stock [Member]
Shareholders Equity and Dividends (Textual)
Common stock, shares issued		40,000,000	40,000,000
Common stock, shares outstanding		40,000,000	40,000,000
Common stock, shares authorized		120,000,000	120,000,000
Common stock, par value | $ / shares		$ 0.0001	$ 0.0001
Common stock, number of votes per share | Vote		1
Class C common stock [Member] | Royal Entities [Member]
Shareholders Equity and Dividends (Textual)
Common stock, number of votes per share | Vote	1
Aggregate common shares	40,000,000