Related Party Transactions - Additional Information (Detail)			1 Months Ended			3 Months Ended
	Apr. 21, 2017 USD ($) $ / shares shares	Apr. 04, 2017 USD ($) shares	Apr. 21, 2017 USD ($) $ / shares shares	Mar. 31, 2017 USD ($) Nominee shares	Dec. 31, 2016 USD ($) $ / shares shares	Mar. 31, 2017 USD ($) $ / shares	Dec. 23, 2016 USD ($)
Related Party Transaction [Line Items]
Sponsor note | $				$ 265,000	$ 20,000	$ 265,000
Kayne Anderson Sponsor, LLC [Member] | Class A Common Stock [Member]
Related Party Transaction [Line Items]
Founder shares, earliest period to transfer, assign or sell						1 year
Founder shares, stock price trigger | $ / shares						$ 12.00
Founder shares, threshold trading days						20 days
Founder shares, threshold consecutive trading days						30 days
Founder shares, commencement period						150 days
Kayne Anderson Sponsor, LLC [Member] | Class B Common Stock [Member]
Related Party Transaction [Line Items]
Number of founder shares purchased by Sponsor					10,062,500
Proceeds from issuance of founder shares | $					$ 25,000
Shares issued, price per share | $ / shares					$ 0.002
Number of founder shares transferred to independent director nominees by Sponsor				40,000
Number of independent director nominees | Nominee				2
Maximum number of founder shares agreed to forfeit by Sponsor				1,312,500
Kayne Anderson Sponsor, LLC [Member] | Related Party Loans [Member]
Related Party Transaction [Line Items]
Loan from related party | $							$ 300,000
Sponsor note | $				$ 265,000		$ 265,000
Affiliate of Kayne Anderson Sponsor, LLC [Member] | Administrative Support Agreement [Member]
Related Party Transaction [Line Items]
Related party transaction expense per month | $						$ 5,000
Subsequent Event [Member] | Private Placement [Member]
Related Party Transaction [Line Items]
Minimum required threshold period to change in ownership of warrants on completion of initial business combination			30 days
Subsequent Event [Member] | Over-Allotment Units [Member]
Related Party Transaction [Line Items]
Number of founder shares purchased by Sponsor	2,732,112		2,732,112
Number of warrants purchased			364,281
Price per warrant | $ / shares			$ 1.50
Subsequent Event [Member] | Kayne Anderson Sponsor, LLC [Member]
Related Party Transaction [Line Items]
Ownership percentage of founder shares in company's issued and outstanding shares	20.00%		20.00%
Founder shares forfeited by sponsor	629,472
Subsequent Event [Member] | Kayne Anderson Sponsor, LLC [Member] | Private Placement [Member]
Related Party Transaction [Line Items]
Number of warrants purchased	364,281	6,000,000	6,364,281
Price per warrant | $ / shares			$ 1.50
Proceeds from issuance of warrants | $	$ 546,422	$ 9,000,000	$ 9,546,422
Period to complete Initial Business Combination			24 months
Subsequent Event [Member] | Kayne Anderson Sponsor, LLC [Member] | Class A Common Stock [Member] | Private Placement [Member]
Related Party Transaction [Line Items]
Number of shares of common stock converted from each warrant (in shares)	1		1
Warrant exercise price | $ / shares	$ 11.50		$ 11.50
Subsequent Event [Member] | Kayne Anderson Sponsor, LLC [Member] | Class B Common Stock [Member]
Related Party Transaction [Line Items]
Ownership percentage of founder shares in company's issued and outstanding shares	20.00%		20.00%
Founder shares forfeited by sponsor	629,472
Subsequent Event [Member] | Kayne Anderson Sponsor, LLC [Member] | Related Party Loans [Member]
Related Party Transaction [Line Items]
Repayment of loan | $		$ 265,000