Debt - Long term debt (Details) - USD ($)	1 Months Ended		3 Months Ended
	Nov. 30, 2019	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Debt Instrument [Line Items]
Unused fee (Percentage)			0.50%
Repayment of credit facility		$ 151,875,000
Distributions to members		250,000,000		$ 250,000,000
Redemption of members' interest		3,713,455		3,713,455
Payments of Debt Issuance Costs		9,027,753
Write-off of deferred financing costs		2,121,451		2,121,451
Repayment of loan			$ 984,480	151,916,121
Credit Facility [Member]
Debt Instrument [Line Items]
Borrowing capacity		425,000,000		425,000,000
Secured term loans
Debt Instrument [Line Items]
Debt balance outstanding			295,937,500		$ 246,250,000
Initial/credit facility term loan
Debt Instrument [Line Items]
Borrowing capacity		300,000,000		300,000,000
Repayment of loan	$ 50,000,000
Debt balance outstanding			$ 246,250,000
Credit facility Interest rate			4.35%
Delayed Draw Term Loan
Debt Instrument [Line Items]
Borrowing capacity	$ 100,000,000	$ 50,000,000		$ 50,000,000
Face amount			$ 50,000,000
Debt balance outstanding			$ 49,687,500
Credit facility Interest rate			4.11%
Debt term		24 months		24 months
Delayed Draw Term Loan | First Specified Repayment Period [Member]
Debt Instrument [Line Items]
Quarterly principal repayments		$ 312,500
Delayed Draw Term Loan | Second Specified Repayment Period [Member]
Debt Instrument [Line Items]
Quarterly principal repayments		625,000
Revolving credit facility/revolver
Debt Instrument [Line Items]
Borrowing capacity		$ 75,000,000		$ 75,000,000
Face amount			$ 20,000,000
Debt balance outstanding			$ 32,000,000		$ 12,000,000
Credit facility Interest rate			4.35%
Remaining maximum borrowings available			$ 40,503,482
Letter of Credit [Member]
Debt Instrument [Line Items]
Debt balance outstanding			$ 2,496,518