LEASES - Narrative (Details)	3 Months Ended	6 Months Ended
	Jun. 30, 2019 USD ($)	Jun. 30, 2019 USD ($) lease renewal_option	Jan. 01, 2019 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Finance lase cost	$ 47,075	$ 74,793
Operating lease cost	$ 1,600,000	3,100,000
Finance lease payment		$ 61,638
Number of extension options | renewal_option		2
Accounting Standards Update 2018-11
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right-of-use asset			$ 37,800,000
Operating lease payments		$ 1,000,000
Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease renewal term	1 year	1 year
Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease renewal term	20 years	20 years
Plant
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease renewal term	5 years	5 years
Number of operating leases | lease		2
Lease renewal term, total		20 years