Interest Rate Derivative Agreements (Details)	6 Months Ended
	Jun. 30, 2017 USD ($)
Derivative [Line Items]
Derivative, Fair Value - Asset (Liability)	$ 521,789	[1]
Bank of New York Mellon [Member]
Derivative [Line Items]
Derivative, Purchase Date	2010-09
Derivative, Notional Amount	$ 29,609,667
Derivative, Maturity Date	2017-09
Derivative, Effective Capped Rate	3.00%
Derivative, Index	SIFMA
Derivative, Variable Debt Financing Facility Hedged	M24 TEBS
Barclays Bank PLC [Member]
Derivative [Line Items]
Derivative, Purchase Date	2010-09
Derivative, Notional Amount	$ 29,609,667
Derivative, Maturity Date	2017-09
Derivative, Effective Capped Rate	3.00%
Derivative, Index	SIFMA
Derivative, Variable Debt Financing Facility Hedged	M24 TEBS
Royal Bank of Canada [Member]
Derivative [Line Items]
Derivative, Purchase Date	2010-09
Derivative, Notional Amount	$ 29,609,667
Derivative, Maturity Date	2017-09
Derivative, Effective Capped Rate	3.00%
Derivative, Index	SIFMA
Derivative, Variable Debt Financing Facility Hedged	M24 TEBS
Deutsche Bank [Member]
Derivative [Line Items]
Derivative, Purchase Date	2013-08
Derivative, Notional Amount	$ 88,829,000
Derivative, Maturity Date	2017-09
Derivative, Effective Capped Rate	1.50%
Derivative, Index	SIFMA
Derivative, Variable Debt Financing Facility Hedged	M24 TEBS
Barclays Bank PLC 2 [Member]
Derivative [Line Items]
Derivative, Purchase Date	2014-07
Derivative, Notional Amount	$ 30,850,250
Derivative, Maturity Date	2019-08
Derivative, Effective Capped Rate	3.00%
Derivative, Index	SIFMA
Derivative, Variable Debt Financing Facility Hedged	M31 TEBS
Derivative, Fair Value - Asset (Liability)	$ 1,002	[1]
Royal Bank of Canada-2 [Member]
Derivative [Line Items]
Derivative, Purchase Date	2014-07
Derivative, Notional Amount	$ 30,850,250
Derivative, Maturity Date	2019-08
Derivative, Effective Capped Rate	3.00%
Derivative, Index	SIFMA
Derivative, Variable Debt Financing Facility Hedged	M31 TEBS
Derivative, Fair Value - Asset (Liability)	$ 1,002	[1]
SMBC Capital Markets, Inc [Member]
Derivative [Line Items]
Derivative, Purchase Date	2014-07
Derivative, Notional Amount	$ 30,850,250
Derivative, Maturity Date	2019-08
Derivative, Effective Capped Rate	3.00%
Derivative, Index	SIFMA
Derivative, Variable Debt Financing Facility Hedged	M31 TEBS
Derivative, Fair Value - Asset (Liability)	$ 1,002	[1]
Wells Fargo Bank [Member]
Derivative [Line Items]
Derivative, Purchase Date	2015-07
Derivative, Notional Amount	$ 27,813,538
Derivative, Maturity Date	2020-08
Derivative, Effective Capped Rate	3.00%
Derivative, Index	SIFMA
Derivative, Variable Debt Financing Facility Hedged	M33 TEBS
Derivative, Fair Value - Asset (Liability)	$ 12,207	[1]
Royal Bank of Canada-3 [Member]
Derivative [Line Items]
Derivative, Purchase Date	2015-07
Derivative, Notional Amount	$ 27,813,538
Derivative, Maturity Date	2020-08
Derivative, Effective Capped Rate	3.00%
Derivative, Index	SIFMA
Derivative, Variable Debt Financing Facility Hedged	M33 TEBS
Derivative, Fair Value - Asset (Liability)	$ 12,207	[1]
SMBC Capital Markets, Inc-3 [Member]
Derivative [Line Items]
Derivative, Purchase Date	2015-07
Derivative, Notional Amount	$ 27,813,538
Derivative, Maturity Date	2020-08
Derivative, Effective Capped Rate	3.00%
Derivative, Index	SIFMA
Derivative, Variable Debt Financing Facility Hedged	M33 TEBS
Derivative, Fair Value - Asset (Liability)	$ 12,207	[1]
Barclays Bank PLC 3 [Member]
Derivative [Line Items]
Derivative, Purchase Date	2017-06
Derivative, Notional Amount	$ 92,550,751
Derivative, Maturity Date	2019-08
Derivative, Effective Capped Rate	1.50%
Derivative, Index	SIFMA
Derivative, Variable Debt Financing Facility Hedged	M31 TEBS
Derivative, Fair Value - Asset (Liability)	$ 105,269	[1]
Barclays Bank PLC 4 [Member]
Derivative [Line Items]
Derivative, Purchase Date	2017-06
Derivative, Notional Amount	$ 83,440,615
Derivative, Maturity Date	2020-08
Derivative, Effective Capped Rate	1.50%
Derivative, Index	SIFMA
Derivative, Variable Debt Financing Facility Hedged	M33 TEBS
Derivative, Fair Value - Asset (Liability)	$ 376,893	[1]

[1] For additional details, see Note 22 to the Partnership's condensed consolidated financial statements.