Debt - PetIQ, LLC and Subsidiaries (Details) - Pet, LLC and Subsidiaries (the "Company") - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016	Dec. 21, 2016	Mar. 31, 2016	Mar. 16, 2015
Debt
Maximum borrowing capacity				$ 50,000		$ 40,000
Net discount on debt and deferred financing fees	$ (53)		$ (92)
Long-term Debt, Total	35,459		27,381
Less current maturities of long-term debt	(2,454)		(2,223)
Total long-term debt	33,005		25,158
Long-term Debt, Fiscal Year Maturity [Abstract]
2017	1,250
2018	2,708
2019	31,554
Debt issuance costs		$ 218
Loss on debt extinguishment		$ (993)
Revolving credit facility
Debt
Maximum borrowing capacity				45,000
Aggregate principal amount	25,000					7,000
Outstanding balance	$ 31,554		$ 22,473
Variable interest rate, basis points spread over variable reference rate (as a percent)	4.75%		4.25%
Term loans
Debt
Maximum borrowing capacity				$ 5,000
Aggregate principal amount					$ 48,000	$ 33,000
Outstanding balance	$ 3,958		$ 5,000
Variable interest rate, basis points spread over variable reference rate (as a percent)	4.75%		4.25%
Term B Loans
Debt
Aggregate principal amount			$ 3,000
Term A Loans
Debt
Aggregate principal amount	$ 20,000