Intrepid Potash (IPI) 10-Q 5 Nov 19 2019 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2019	Oct. 31, 2019
Document and Entity Information [Abstract]
Entity Registrant Name	Intrepid Potash, Inc.
Entity Central Index Key	0001421461
Document Type	10-Q
Document Period End Date	Sep. 30, 2019
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		131,970,680
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q3

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
ASSETS
Cash and cash equivalents	$ 13,023	$ 33,222
Accounts receivable:
Trade, net	31,136	25,161
Other receivables, net	1,976	597
Inventory, net	85,363	82,046
Prepaid expenses and other current assets	5,273	4,332
Total current assets	136,771	145,358
Property, plant and equipment, and mineral properties, net	381,768	346,209
Long-term parts inventory, net	28,476	30,031
Intangible Assets	19,184	2,311
Other assets, net	7,920	1,322
Total Assets	574,119	525,231
Accounts payable:
Trade	9,969	9,107
Related parties	19	28
Income taxes payable	0	914
Accrued liabilities	15,077	8,717
Accrued employee compensation and benefits	3,744	4,124
Advances on credit facility	19,817	0
Current portion of long-term debt	20,000	0
Other current liabilities	16,022	11,891
Total current liabilities	84,648	34,781
Long-term debt, net	29,725	49,642
Asset retirement obligation	24,172	23,125
Operating lease liabilities	3,374	0
Other non-current liabilities	420	420
Total Liabilities	142,339	107,968
Commitments and Contingencies
Common stock, $0.001 par value; 400,000,000 shares authorized; 129,170,282 and 128,716,595 shares outstanding at September 30, 2019 and December 31, 2018, respectively	129	129
Additional paid-in capital	652,170	649,202
Retained deficit	(220,519)	(232,068)
Total Stockholders' Equity	431,780	417,263
Total Liabilities and Stockholders' Equity	$ 574,119	$ 525,231

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 30, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	400,000,000	400,000,000
Common stock, shares outstanding	129,170,282	128,716,595

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Less:
Lower of cost or net realizable value inventory adjustments	$ 1,462	$ 0	$ 1,462	$ 781
Gross Margin	6,949	8,960	33,288	23,446
Selling and administrative	5,548	5,121	17,710	15,281
Accretion of asset retirement obligation	513	417	1,347	1,251
Care and maintenance expense	203	119	417	366
Other operating (income) expense	70	(934)	358	(65)
Operating Income	615	4,237	13,456	6,613
Other Income (Expense)
Interest Expense, net	(849)	(864)	(2,258)	(2,620)
Interest income	0	0	0	(99)
Other income	9	23	343	103
(Loss) Income Before Income Taxes	(225)	3,396	11,541	4,195
Income Tax Benefit (Expense)	8	(46)	8	(46)
Net (Loss) Income	$ (217)	$ 3,350	$ 11,549	$ 4,149
Weighted Average Shares Outstanding:
Basic (in shares)	129,170	128,233	128,934	127,921
Diluted (in shares)	129,170	130,894	131,056	130,983
Earnings Per Share:
Basic (in dollars per share)	$ 0	$ 0.03	$ 0.09	$ 0.03
Diluted (in dollars per share)	$ 0	$ 0.03	$ 0.09	$ 0.03
Freight Costs [Member]
Less:
Cost of Goods Sold	$ 8,724	$ 6,886	$ 30,473	$ 27,158
Warehouse and Handling [Member]
Less:
Cost of Goods Sold	2,162	2,192	6,628	7,067
Mineral [Member]
Sales	51,160	41,410	171,226	153,906
Less:
Cost of Goods Sold	$ 31,863	$ 23,372	$ 99,375	$ 95,454

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Deficit [Member]
Balance (in shares) at Dec. 31, 2017		127,646,530
Balance at Dec. 31, 2017	$ 402,090	$ 128	$ 645,813	$ (243,851)
Net income (loss)	4,149			4,149
Stock-based compensation	3,593		3,593
Vesting of restricted common stock, net of restricted common stock used to fund employee income tax withholding due upon vesting (in shares)		556,158
Vesting of restricted common stock, net of restricted common stock used to fund employee income tax withholding due upon vesting	(371)		(371)
Exercise of stock options (in shares)		30,254
Exercise of stock options	47		47
Balance (in shares) at Sep. 30, 2018		128,232,942
Balance at Sep. 30, 2018	409,508	$ 128	649,082	(239,702)
Balance (in shares) at Jun. 30, 2018		128,232,942
Balance at Jun. 30, 2018	404,859	$ 128	647,783	(243,052)
Net income (loss)	3,350			3,350
Stock-based compensation	1,299		1,299
Balance (in shares) at Sep. 30, 2018		128,232,942
Balance at Sep. 30, 2018	409,508	$ 128	649,082	(239,702)
Balance (in shares) at Dec. 31, 2018		128,716,595
Balance at Dec. 31, 2018	417,263	$ 129	649,202	(232,068)
Net income (loss)	11,549			12,424
Stock-based compensation	3,237		3,237
Vesting of restricted common stock, net of restricted common stock used to fund employee income tax withholding due upon vesting (in shares)		444,500
Vesting of restricted common stock, net of restricted common stock used to fund employee income tax withholding due upon vesting	(278)		(278)
Exercise of stock options (in shares)		9,187
Exercise of stock options	9		9
Balance (in shares) at Sep. 30, 2019		129,170,282
Balance at Sep. 30, 2019	431,780	$ 129	652,170	(220,519)
Balance (in shares) at Jun. 30, 2019		129,170,282
Balance at Jun. 30, 2019	431,022	$ 129	651,195	(220,302)
Net income (loss)	(217)			658
Stock-based compensation	975		975
Balance (in shares) at Sep. 30, 2019		129,170,282
Balance at Sep. 30, 2019	$ 431,780	$ 129	$ 652,170	$ (220,519)

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018
Cash Flows from Operating Activities:
Net Income		$ 11,549	$ 4,149
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, depletion and accretion	[1]	25,333	23,838
Accretion of asset retirement obligation		1,347	1,251
Amortization of deferred financing costs		217	550
Stock-based compensation		3,237	3,593
Lower of cost or net realizable value inventory adjustments		1,462	781
Gain on disposal of assets		(17)	(84)
Allowance for doubtful accounts		50	100
Allowance for parts inventory obsolescence		4	15
Changes in operating assets and liabilities:
Trade accounts receivable, net		(6,026)	(612)
Other receivables, net		(1,379)	(3,039)
Refundable income taxes		0	2,663
Inventory, net		(3,227)	5,631
Prepaid expenses and other current assets		(787)	649
Accounts payable, accrued liabilities, and accrued employee compensation and benefits		5,821	3,076
Income taxes payable		(914)	210
Operating lease liabilities		(1,474)	0
Other liabilities		2,421	10,174
Net cash provided by operating activities		37,617	52,945
Cash Flows from Investing Activities:
Additions to property, plant, equipment, mineral properties, and other assets		(59,948)	(12,668)
Additions to intangible assets		(16,873)	0
Proceeds from sale of property, plant, equipment, and mineral properties		68	92
Net cash used in investing activities		(76,753)	(12,576)
Cash Flows from Financing Activities:
Proceeds from short-term borrowings on credit facility		30,317	13,500
Repayments of short-term borrowings on credit facility		(10,500)	(17,400)
Capitalized debt costs		(457)	0
Employee tax withholding paid for restricted stock upon vesting		(278)	(371)
Proceeds from exercise of stock options		9	47
Net cash provided by (used in) financing activities		19,091	(4,224)
Net Change in Cash, Cash Equivalents and Restricted Cash		(20,045)	36,145
Cash, Cash Equivalents, and Restricted Cash, beginning of period		33,704	1,549
Cash, Cash Equivalents, and Restricted Cash, end of period		13,659	37,694
Net cash paid (refunded) during the period for:
Interest		1,458	1,629
Income taxes		968	(2,828)
Accrued purchases for property, plant, equipment, and mineral properties		1,749	915
Right-of-use assets exchanged for operating lease liabilities		$ 6,558	$ 0
[1]	Depreciation, depletion, and amortization incurred for potash and Trio® excludes depreciation, depletion and amortization amounts absorbed in or relieved from inventory.

COMPANY BACKGROUND

COMPANY BACKGROUND	9 Months Ended
	Sep. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
COMPANY BACKGROUND	COMPANY BACKGROUND We are a diversified mineral company that delivers potassium, magnesium, sulfur, salt, and water products essential for customer success in agriculture, animal feed, and the oil and gas industry. We are the only U.S. producer of muriate of potash (sometimes referred to as potassium chloride, KCl, or potash), which is applied as an essential nutrient for healthy crop development, utilized in several industrial applications, and used as an ingredient in animal feed. In addition, we produce a specialty fertilizer, Trio ® , which delivers three key nutrients, potassium, magnesium, and sulfate, in a single particle. We also provide water, magnesium chloride, brine, and various oilfield products and services. Our extraction and production operations are conducted entirely in the continental United States. We produce potash from three solution mining facilities: our HB solution mine in Carlsbad, New Mexico, our solution mine in Moab, Utah, and our brine recovery mine in Wendover, Utah. We also operate the North compaction facility in Carlsbad, New Mexico, which compacts and granulates product from the HB mine. We produce Trio ® from our conventional underground East mine in Carlsbad, New Mexico. We have water rights in New Mexico under which we sell water primarily to support oil and gas development in the Permian Basin near our Carlsbad facilities. We continue to work to expand our sales of water. In May 2019, we acquired certain land, water rights, and other related assets from Dinwiddie Cattle Company. We refer to these assets and operations as "Intrepid South." We have three segments: potash, Trio ® , and oilfield solutions. We account for sales of byproducts as revenue in the potash or Trio ® segment based on which segment generates the byproduct. Intersegment sales prices are market based and are eliminated. "Intrepid," "our," "we," or "us," means Intrepid Potash, Inc. and its consolidated subsidiaries.

SUMMARY OF SIGNIFICANT ACCOUNTI

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	9 Months Ended
	Sep. 30, 2019
Accounting Policies [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Financial Statement Presentation —Our unaudited condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission. Certain information and note disclosures normally included in annual financial statements prepared in accordance with U.S. generally accepted accounting principles ("GAAP") have been condensed or omitted pursuant to those rules and regulations. In the opinion of management, all adjustments, consisting of normal recurring accruals considered necessary for a fair presentation of interim financial information, have been included. These unaudited condensed consolidated financial statements should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2018. We have indefinite-lived intangible assets, which are not amortized. We test indefinite-lived intangible assets for impairment at least annually on October 1, and more frequently if circumstances require. We recognize an impairment loss whenever the indefinite-lived intangible assets' fair value is less than their carrying value. We have updated our accounting policies for leases as a result of adopting Accounting Standards Update ("ASU") No. 2016-02, Leases , as discussed in more detail below. We have made no other changes to our significant accounting policies described in our Annual Report on Form 10-K for the year ended December 31, 2018. Recently Adopted Accounting Standards In February 2016, the Financial Accounting Standards Board ("FASB") issued ASU No. 2016-02, Leases , ("ASC Topic 842"), which we adopted on January 1, 2019, using a modified retrospective method, applying the new standard to all leases existing at the date of initial application. We used the effective date as our date of initial application. Consequently, financial information will not be updated, and disclosures required under the new standard will not be provided for dates before January 1, 2019. The new standard requires lessees to recognize lease assets and liabilities on their balance sheet for those leases classified as operating leases under previous GAAP. These assets and liabilities are recorded generally at the present value of the contracted lease payments, using the rate implicit in the lease if known. If the implicit rate is not known, we use our estimated incremental borrowing rate. We do not account for lease and non-lease components separately and we do not apply the requirements of ASC Topic 842 to short-term leases with a term of one year or less at inception. Lease expense is recognized on a straight-line basis over the lease term. As a result of adopting the new standard, we recorded operating lease right-of-use ("ROU") assets of $5.9 million and operating lease liabilities of $6.1 million on January 1, 2019. Pronouncements Issued But Not Yet Adopted In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - (Topic 326): Measurement of Credit Losses on Financial Instruments , which changes the way entities recognize impairment of many financial assets by requiring immediate recognition of estimated credit losses expected to occur over their remaining life. This guidance is effective for us for annual and interim periods beginning after December 15, 2019. Because we have historically experienced minimal bad debt expense related to our trade receivables, we do not expect the adoption of this standard to have a material impact on our condensed consolidated financial statements. Reclassifications of Prior Period Presentation —Certain prior period amounts have been reclassified in order to conform to the current period presentation. These reclassifications had no effect on the reported results of operations.

EARNINGS PER SHARE

EARNINGS PER SHARE	9 Months Ended
	Sep. 30, 2019
Earnings Per Share [Abstract]
EARNINGS PER SHARE	EARNINGS PER SHARE Basic earnings per share is computed by dividing net income by the weighted-average number of shares of common stock outstanding during the period. For purposes of determining diluted earnings per share, basic weighted-average common shares outstanding is adjusted to include potentially dilutive securities, including restricted stock, stock options, and performance units. The treasury-stock method is used to measure the dilutive impact of potentially dilutive shares. Potentially dilutive shares are excluded from the diluted weighted-average shares outstanding computation in periods in which they have an anti-dilutive effect. The following table shows the calculation of basic and diluted earnings per share (in thousands, except per share amounts): Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Net (loss) income $ (217 ) $ 3,350 $ 11,549 $ 4,149 Basic weighted-average common shares outstanding 129,170 128,233 128,934 127,921 Add: Dilutive effect of restricted stock — 1,741 1,296 2,098 Add: Dilutive effect of stock options — 920 826 964 Diluted weighted-average common shares outstanding 129,170 130,894 131,056 130,983 Basic $ 0.00 $ 0.03 $ 0.09 $ 0.03 Diluted $ 0.00 $ 0.03 $ 0.09 $ 0.03 The following table shows the shares that have an anti-dilutive effect and are excluded from the diluted weighted-average shares outstanding computations (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Anti-dilutive effect of restricted stock 2,252 278 414 139 Anti-dilutive effect of stock options outstanding 3,219 1,748 1,655 1,354

CASH, CASH EQUIVALENTS AND REST

CASH, CASH EQUIVALENTS AND RESTRICTED CASH	9 Months Ended
	Sep. 30, 2019
Cash and Cash Equivalents [Abstract]
CASH, CASH EQUIVALENTS AND RESTRICTED CASH	CASH, CASH EQUIVALENTS AND RESTRICTED CASH Total cash, cash equivalents and restricted cash, as shown on the condensed consolidated statements of cash flows are included in the following accounts at September 30, 2019, and 2018 (in thousands): September 30, 2019 September 30, 2018 Cash and cash equivalents $ 13,023 $ 37,214 Restricted cash included in other current assets 150 — Restricted cash included in other long-term assets 486 480 Total cash, cash equivalents, and restricted cash as shown in the statement of cash flows $ 13,659 $ 37,694 Restricted cash included in other current and long-term assets on the condensed consolidated balance sheets represents amounts whose use is restricted by contractual agreements with various entities, principally the Bureau of Land Management or the State of Utah, as security to fund future reclamation obligations at our sites.

INVENTORY AND LONG-TERM PARTS I

INVENTORY AND LONG-TERM PARTS INVENTORY	9 Months Ended
	Sep. 30, 2019
Inventory Disclosure [Abstract]
INVENTORY AND LONG-TERM PARTS INVENTORY	INVENTORY AND LONG-TERM PARTS INVENTORY The following summarizes our inventory, recorded at the lower of weighted-average cost or estimated net realizable value, as of September 30, 2019 , and December 31, 2018 (in thousands): September 30, 2019 December 31, 2018 Finished goods product inventory $ 42,533 $ 48,370 In-process mineral inventory 30,766 24,325 Total product inventory 73,299 72,695 Current parts inventory, net 12,064 9,351 Total current inventory, net 85,363 82,046 Long-term parts inventory, net 28,476 30,031 Total inventory, net $ 113,839 $ 112,077 Parts inventory is shown net of estimated allowances for obsolescence of $0.6 million and $1.7 million as of September 30, 2019, and December 31, 2018, respectively. As a result of routine assessments of the lower of weighted-average cost or estimated net realizable value of our finished goods product inventory, we recorded charges of $0.0 million and $0.8 million for the three and nine months ended September 30, 2018, respectively. For the three and nine months ended September 30, 2019, we recorded $1.5 million of such charges.

PROPERTY, PLANT, EQUIPMENT, AND

PROPERTY, PLANT, EQUIPMENT, AND MINERAL PROPERTIES	9 Months Ended
	Sep. 30, 2019
Property, Plant and Equipment [Abstract]
PROPERTY, PLANT, EQUIPMENT, AND MINERAL PROPERTIES	PROPERTY, PLANT, EQUIPMENT, AND MINERAL PROPERTIES Property, plant, equipment, and mineral properties were comprised of the following (in thousands): September 30, 2019 December 31, 2018 Land $ 27,274 $ 519 Ponds and land improvements 64,259 58,961 Mineral properties and development costs 145,057 139,418 Buildings and plant 82,056 81,429 Machinery and equipment 248,981 241,977 Vehicles 6,131 5,669 Office equipment and improvements 8,738 13,779 Operating lease ROU assets 6,558 — Construction in progress 8,896 2,822 Total property, plant, equipment, and mineral properties, gross $ 597,950 $ 544,574 Less: accumulated depreciation, depletion, and amortization (216,182 ) (198,365 ) Total property, plant, equipment, and mineral properties, net $ 381,768 $ 346,209 We incurred the following expenses for depreciation, depletion, and amortization, including expenses capitalized into inventory, for the following periods (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Depreciation $ 7,128 $ 7,021 $ 20,881 $ 20,919 Depletion 705 742 2,812 2,919 Amortization of right of use assets 681 — 1,640 — Total incurred $ 8,514 $ 7,763 $ 25,333 $ 23,838

LEASES

LEASES	9 Months Ended
	Sep. 30, 2019
Leases [Abstract]
Leases	LEASES When we enter into a new arrangement, we determine if it is or contains a lease. We have operating leases for mining equipment, trucks, rail cars, and office space. Our operating leases have remaining leases terms ranging from less than one year to five years. Leases recorded on the balance sheet consist of the following (amounts in thousands): Leases Classification on the Balance Sheet Balance as of Assets Operating lease ROU assets, net Property, plant, equipment, and mineral properties, net $ 5,105 Liabilities Current operating lease liabilities Other current liabilities $ 1,889 Non-current operating lease liabilities Operating lease liabilities $ 3,374 Other information related to lease term and discount rate is as follows: As of September 30, 2019 Weighted average remaining lease term - operating leases (in years) 2.8 Weighted average discount rate - operating leases 5.75 % The components of lease expense are as follows: For the Three Months Ended September 30, 2019 For the Nine Months Ended September 30, 2019 The components of lease expense were as follows: Operating lease expense $ 574 $ 1,702 Short-term lease expense 29 80 Total lease expense $ 603 $ 1,782 Rental and lease expenses for the three and nine months ended September 30, 2018, were $1.0 million and $2.9 million , respectively. As of September 30, 2019, maturities of lease liabilities are summarized as follows (amounts in thousands): Years Ending December 31, Operating Leases 2019 (excluding the nine months ended September 30, 2019) $ 575 2020 2,058 2021 1,761 2022 1,135 2023 169 Thereafter 32 Total future minimum lease payments $ 5,730 Less - amount representing interest 467 Present value of future minimum lease payments $ 5,263 Less - current lease obligations 1,889 Long-term lease obligations $ 3,374 As of December 31, 2018, and prior to the adoption of ASC Topic 842, the annual future minimum lease payments were as follows: Years Ending December 31, Operating Leases 2019 $ 2,266 2020 1,874 2021 1,602 2022 1,083 2023 172 Thereafter 1,343 Total $ 8,340

DEBT

DEBT	9 Months Ended
	Sep. 30, 2019
Debt Disclosure [Abstract]
DEBT	DEBT Senior Notes —As of September 30, 2019 , we had outstanding $50 million of senior notes (the "Notes") consisting of the following series: • $20 million of Senior Notes, Series A, due April 16, 2020 • $15 million of Senior Notes, Series B, due April 14, 2023 • $15 million of Senior Notes, Series C, due April 16, 2025 The agreement governing the Notes contains certain financial covenants, including the following: • We are required to maintain a minimum fixed charge coverage ratio of 1.3 to 1.0 as of the last day of each quarter, measured based on the previous four quarters. Our fixed charge coverage ratio as of September 30, 2019, was 12.6 to 1.0, therefore we were in compliance with this covenant. • We are allowed a maximum leverage ratio of 3.5 to 1.0 as of the last day of each quarter, measured based on the previous four quarters. Our leverage ratio as of September 30, 2019, was 1.2 to 1.0, therefore we were in compliance with this covenant. Fixed charge coverage ratio and leverage ratio are calculated in accordance with the agreement governing the Notes. For all of the three- and nine-month periods ended September 30, 2019, and 2018, the interest rates on the Notes were 3.73% for the Series A Notes, 4.63% for the Series B Notes and 4.78% for the Series C Notes. These rates represent the lowest interest rates available under the Notes. The interest rates may adjust upward if we do not continue to meet certain financial covenants. We have granted to the collateral agent for the noteholders a first lien on substantially all of our non-current assets and a second lien on substantially all of our current assets. We are required to offer to prepay the Notes with the proceeds of dispositions of certain specified property and with the proceeds of certain equity issuances, as set forth in the agreement governing the Notes. The obligations under the Notes are unconditionally guaranteed by several of our subsidiaries. We were in compliance with the applicable covenants under the agreement governing the Notes as of September 30, 2019 . Our outstanding long-term debt, net, as of September 30, 2019 , and December 31, 2018 , was as follows (in thousands): September 30, 2019 December 31, 2018 Notes $ 50,000 $ 50,000 Less current portion of long-term debt (20,000 ) — Less deferred financing costs (275 ) (358 ) Long-term debt, net $ 29,725 $ 49,642 Credit Facility —We maintain a secured revolving credit facility with Bank of Montreal. In August 2019, we amended and restated the credit facility to change it from an asset-backed facility to a cash-flow facility, to increase the amount available under the facility from $50 million to $75 million plus an additional $75 million accordion, and to extend the maturity date to August 1, 2024 . The revolving credit facility also provides for a $7.5 million sublimit for the issuance of letters of credit. As of September 30, 2019, borrowings under the credit facility bore interest at LIBOR (London Interbank Offered Rate) plus an applicable margin of 1.25% to 2.00% per annum, based on our leverage ratio. We have granted to Bank of Montreal a first lien on substantially all of our current assets and a second lien on substantially all of our non-current assets. The obligations under the credit facility are unconditionally guaranteed by several of our subsidiaries. We occasionally borrow and repay amounts under the facility for near-term working capital needs or other purposes and may do so in the future. During the nine months ended September 30, 2019, we borrowed $30.3 million and repaid $10.5 million under the facility. As of September 30, 2019, we had $19.8 million of borrowings outstanding and $1.0 million in outstanding letters of credit under the facility. Including the outstanding letters of credit, we had $54.2 million available to be borrowed under the facility as of September 30, 2019. We were in compliance with the applicable covenants under the facility as of September 30, 2019. During the three months ended September 30, 2018, we had no borrowings or repayments under the facility. During the nine months ended September 30, 2018, we borrowed $13.5 million and repaid $17.4 million under the facility. Interest Expense —Interest expense is recorded net of any capitalized interest associated with investments in capital projects. We incurred gross interest expense of $0.9 million for both the three months ended September 30, 2019 , and 2018 , and $2.4 million and $2.7 million for the nine months ended September 30, 2019 , and 2018 , respectively. Amounts included in interest expense, net for the three and nine months ended September 30, 2019 , and 2018, were as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Interest on Notes and credit facility $ 804 $ 704 $ 2,143 $ 2,155 Amortization of deferred financing costs 80 183 217 550 Gross interest expense 884 887 2,360 2,705 Less capitalized interest (35 ) (23 ) (102 ) (85 ) Interest expense, net $ 849 $ 864 $ 2,258 $ 2,620

INTANGIBLE ASSETS

INTANGIBLE ASSETS	9 Months Ended
	Sep. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	INTANGIBLE ASSETS Our intangible assets, consisting of water rights, are recorded at their fair market values at the date of acquisition. Our water rights have indefinite lives and are not amortized. We evaluate our water rights at least annually on October 1 for impairment, or more frequently if circumstances require. As of September 30, 2019, we had water rights valued at $19.2 million . In May 2019, we acquired $16.9 million of water rights in the Intrepid South asset acquisition. We valued the water rights acquired by allocating the total purchase price of the Intrepid South assets by the relative estimated fair values of all Intrepid South assets acquired.

FINANCIAL INFORMATION FOR SUBSI

FINANCIAL INFORMATION FOR SUBSIDIARY GUARANTORS OF POSSIBLE FUTURE PUBLIC DEBT	9 Months Ended
	Sep. 30, 2019
Guarantees [Abstract]
FINANCIAL INFORMATION FOR SUBSIDIARY GUARANTORS OF POSSIBLE FUTURE PUBLIC DEBT	FINANCIAL INFORMATION FOR SUBSIDIARY GUARANTORS OF POSSIBLE FUTURE PUBLIC DEBT Intrepid Potash, Inc., as the parent company, has no independent assets or operations, and operations are conducted solely through its subsidiaries. Cash generated from operations is held at the parent-company level as cash on hand and totaled $13.0 million and $33.2 million at September 30, 2019 , and December 31, 2018 , respectively. If one or more of our wholly-owned operating subsidiaries guarantee public debt securities in the future, those guarantees will be full and unconditional and will constitute the joint and several obligations of the subsidiary guarantors. Our other subsidiaries are minor. There are no restrictions on our ability to obtain cash dividends or other distributions of funds from the subsidiary guarantors, except those imposed by applicable law.

ASSET RETIREMENT OBLIGATION

ASSET RETIREMENT OBLIGATION	9 Months Ended
	Sep. 30, 2019
Asset Retirement Obligation Disclosure [Abstract]
ASSET RETIREMENT OBLIGATION	ASSET RETIREMENT OBLIGATION We recognize an estimated liability for future costs associated with the abandonment and reclamation of our mining properties. A liability for the fair value of an asset retirement obligation and a corresponding increase to the carrying value of the related long-lived asset are recorded as the mining operations occur or the assets are acquired. Our asset retirement obligation is based on the estimated cost to abandon and reclaim the mining operations, the economic life of the properties, and federal and state regulatory requirements. The liability is discounted using credit adjusted risk-free rate estimates at the time the liability is incurred or when there are upward revisions to estimated costs. The credit adjusted risk-free rates used to discount our abandonment liabilities range from 6.9% to 9.7% . Revisions to the liability occur due to construction of new or expanded facilities, changes in estimated abandonment costs or economic lives, or if federal or state regulators enact new requirements regarding the abandonment or reclamation of mines. Following is a table of the changes to our asset retirement obligation for the following periods (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Asset retirement obligation, at beginning of period $ 23,959 $ 22,310 $ 23,125 $ 21,476 Accretion of discount 513 417 1,347 1,251 Total asset retirement obligation, at end of period $ 24,472 $ 22,727 $ 24,472 $ 22,727 The current portion of the asset retirement obligation of $0.3 million is included in "Accrued liabilities" on the condensed consolidated balance sheet as of September 30, 2019. The undiscounted amount of asset retirement obligation was $59.5 million as of September 30, 2019 .

REVENUE

REVENUE	9 Months Ended
	Sep. 30, 2019
Revenue from Contract with Customer [Abstract]
REVENUE	REVENUE Revenue Recognition —We account for revenue in accordance with ASC Topic 606 Revenue from Contracts with Customers ("ASC 606"). Under ASC 606, we recognize revenue when control of the promised goods or services is transferred to customers in an amount that reflects the consideration we expect to be entitled in exchange for those goods or services. Contract Balances: The timing of revenue recognition, billings, and cash collection may result in contract assets or contract liabilities. For certain contracts, the customer has agreed to pay us before we have satisfied our performance obligations. Customer payments received before we have satisfied our performance obligations are accounted for as a contract liability, and are included in "Other current liabilities" on the condensed consolidated balance sheets. Our contract liability activity for the three and nine months ended September 30, 2019, and 2018, is shown below (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Beginning balance $ 10,643 $ 7,278 $ 11,678 $ — Additions 3,816 6,156 7,343 13,915 Recognized as revenue during period (1,054 ) (3,597 ) (5,616 ) (4,078 ) Ending balance $ 13,405 $ 9,837 $ 13,405 $ 9,837 Disaggregation of Revenue: The tables below show the disaggregation of revenue by product and reconciles disaggregated revenue to segment revenue for the three and nine months ended September 30, 2019, and 2018. We believe the disaggregation of revenue by products best depicts how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic conditions (in thousands): Three Months Ended September 30, 2019 Product Potash Segment Trio ® Segment Oilfield Solutions Segment Intersegment Eliminations Total Potash $ 24,242 $ — $ — $ — $ 24,242 Trio ® — 13,370 — — 13,370 Water 574 1,211 5,488 — 7,273 Salt 2,736 56 — — 2,792 Magnesium Chloride 949 — — — 949 Brines 712 — — — 712 Other — — 1,822 — 1,822 Total Revenue $ 29,213 $ 14,637 $ 7,310 $ — $ 51,160 Nine Months Ended September 30, 2019 Product Potash Segment Trio ® Segment Oilfield Solutions Segment Intersegment Eliminations Total Potash $ 84,807 $ — $ 2,040 $ (1,319 ) $ 85,528 Trio ® — 50,283 — — 50,283 Water 1,371 3,090 13,864 — 18,325 Salt 8,105 508 — — 8,613 Magnesium Chloride 2,895 — — — 2,895 Brines 1,912 — — — 1,912 Other — — 3,670 — 3,670 Total Revenue $ 99,090 $ 53,881 $ 19,574 $ (1,319 ) $ 171,226 Three Months Ended September 30, 2018 Product Potash Segment Trio ® Segment Oilfield Solutions Segment Intersegment Eliminations Total Potash $ 22,170 $ — $ — $ — $ 22,170 Trio ® — 10,320 — — 10,320 Water 431 494 3,803 — 4,728 Salt 1,364 45 — — 1,409 Magnesium Chloride 2,029 — — — 2,029 Brines 519 — — — 519 Other — — 235 — 235 Total Revenue $ 26,513 $ 10,859 $ 4,038 $ — $ 41,410 Nine Months Ended September 30, 2018 Product Potash Segment Trio ® Segment Oilfield Solutions Segment Intersegment Eliminations Total Potash $ 77,422 $ — $ — $ — $ 77,422 Trio ® — 50,397 — — 50,397 Water 951 1,272 12,528 — 14,751 Salt 4,929 145 — — 5,074 Magnesium Chloride 4,680 — — — 4,680 Brines 1,192 — — — 1,192 Other — — 390 — 390 Total Revenue $ 89,174 $ 51,814 $ 12,918 $ — $ 153,906

COMPENSATION PLANS

COMPENSATION PLANS	9 Months Ended
	Sep. 30, 2019
Share-based Payment Arrangement [Abstract]
COMPENSATION PLANS	COMPENSATION PLANS Equity Incentive Compensation Plan —Our Board of Directors and stockholders adopted a long-term incentive compensation plan called the Intrepid Potash, Inc. Amended and Restated Equity Incentive Plan (the "Plan"). The Plan was most recently amended and restated in May 2019. We have issued common stock, restricted stock, performance units, and non-qualified stock option awards under the Plan. At September 30, 2019, approximately 8.8 million shares remained available for issuance under the Plan. For the three months ended September 30, 2019, we granted 17,386 shares of restricted stock under the Plan. These awards vest over one to two years from the date of the grant and, in some cases, contain performance-vesting conditions. As of September 30, 2019, the following awards were outstanding under the Plan: Outstanding as of Restricted Shares 2,800,398 Non-qualified Stock Options 3,218,670 Total share-based compensation expense was $1.0 million and $1.3 million for the three months ended September 30, 2019, and 2018, respectively. Total share-based compensation expense was $3.2 million and $3.6 million for the nine months ended September 30, 2019, and 2018, respectively. As of September 30, 2019 , we had $6.4 million of total remaining unrecognized compensation expense related to awards, that will be expensed through 2021.

INCOME TAXES

INCOME TAXES	9 Months Ended
	Sep. 30, 2019
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES Our anticipated annual tax rate is impacted primarily by the amount of taxable income associated with each jurisdiction in which our income is subject to income tax, permanent differences between the financial statement carrying amounts and tax bases of assets and liabilities. During the three and nine months ended September 30, 2019 , we recognized an immaterial amount of income tax benefit. For the three and nine months ended September 30, 2018, we incurred an immaterial amount of income tax expense. Our effective tax rate for both the three and nine months ended September 30, 2018, was 2% , and 1% , respectively. Our effective tax rates differed from the statutory rate during each period primarily due to changes in the valuation allowance established to offset our deferred tax assets.

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	9 Months Ended
	Sep. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES Reclamation Deposits and Surety Bonds —As of September 30, 2019 , and December 31, 2018 , we had $19.1 million of security placed principally with the State of Utah and the Bureau of Land Management for eventual reclamation of our various facilities. Of this total requirement, $0.5 million consisted of long-term restricted cash deposits reflected in "Other assets, net" on the condensed consolidated balance sheets and $18.6 million was secured by surety bonds issued by an insurer. The surety bonds are held in place by an annual fee paid to the issuer and a letter of credit. We may be required to post additional security to fund future reclamation obligations as reclamation plans are updated or as governmental entities change requirements. Legal —In February 2015, Mosaic Potash Carlsbad Inc. ("Mosaic") filed a complaint and application for preliminary injunction and permanent injunction against Steve Gamble and us in the Fifth Judicial District Court for the County of Eddy in the State of New Mexico. Mr. Gamble is a former employee of Intrepid and Mosaic. In August 2015, the court denied Mosaic’s application for preliminary injunction. In July 2016, Mosaic filed a second complaint against Mr. Gamble and us in U.S. District Court for the District of New Mexico. In January 2018, the two lawsuits were consolidated into one lawsuit pending in the U.S. District Court for the District of New Mexico. Mosaic alleges against us violations of the New Mexico Uniform Trade Secrets Act, tortious interference with contract relating to Mr. Gamble’s separation of employment from Mosaic, violations of the Computer Fraud and Abuse Act, conversion, and civil conspiracy relating to the alleged misappropriation of Mosaic’s confidential information and related actions. Mosaic seeks $23 million to $28 million in compensatory damages, $28 million to $37 million in exemplary damages, and attorneys' fees, punitive damages, injunctive relief, and future royalty damages in unspecified amounts. Discovery is complete. In September 2019, the court set trial dates of April 27 through May 8, 2020. We believe that we have defenses against the claims asserted, and we are vigorously defending against the lawsuit. We have not recorded a loss contingency in our condensed consolidated statements of operations related to this legal matter. In February 2019, Pecos Valley Artesian Conservancy District, Carlsbad Irrigation District, and Otis Mutual Domestic Water Consumers & Sewage Works Association (together, the "Protestants") filed an expedited inter se proceeding against us, Henry McDonald, Select Energy Services, LLC d/b/a Gregory Rockhouse Ranch, and Vision Resources, Inc. in the Fifth Judicial District Court for the County of Chaves in the State of New Mexico. This court serves as the adjudication court for the Pecos Stream System, which includes the Pecos River. The Protestants challenge the validity of our Pecos River water rights, representing approximately 20,000 acre feet per year. In August 2019, the parties stipulated to the jurisdiction of the adjudication court. To promote settlement, the adjudication court established a settlement schedule and ordered a trial date in August 2020 if the parties have not reached a settlement by that time. We are currently allowed to sell water associated with 5,700 acre feet per year of these water rights under preliminary authorizations issued in 2017 and 2018 by the New Mexico Office of the State Engineer ("OSE"). The preliminary authorizations allowed for water sales to begin immediately, subject to repayment if the underlying water rights are ultimately found to be invalid. Separate from the adjudication proceeding, the Protestants have protested these preliminary authorizations before the OSE. Although the OSE is required to hold a hearing relating to the protests, it has temporarily stayed the hearing process until the adjudication process is complete. In the adjudication proceeding, the court is expected to make a determination as to the size of our Pecos River water rights. In addition, the Protestants are asking for unspecified monetary and injunctive relief, as well as attorneys' fees and costs, relating to our sale of water under these water rights and breach of contract claims. We believe that our legal position with respect to the validity of our water rights is solid, and we are vigorously defending against this matter. We have not recorded a loss contingency in our condensed consolidated statements of operations relating to this matter. We are also subject to other claims and legal actions in the ordinary course of business. Legal costs are expensed as incurred. While there are uncertainties in predicting the outcome of any claim or legal action, we believe that the ultimate resolution of these other claims or actions is not reasonably likely to have a material adverse effect on our financial condition, results of operations, or cash flows.

FAIR VALUE

FAIR VALUE	9 Months Ended
	Sep. 30, 2019
Fair Value Disclosures [Abstract]
FAIR VALUE MEASUREMENTS	FAIR VALUE We measure our financial assets and liabilities in accordance with ASC Topic 820, Fair Value Measurements and Disclosures. As of September 30, 2019 , and December 31, 2018 , our cash consisted of bank deposits. Other financial assets and liabilities including accounts receivable, refundable income taxes, accounts payable, accrued liabilities, and advances on our credit facility are carried at cost which approximates fair value because of the short-term nature of these instruments. As of September 30, 2019 , and December 31, 2018 , the estimated fair value of our outstanding Notes was $50.1 million and $48.1 million , respectively. The fair value of our Notes is estimated using a discounted cash flow analysis based on current borrowing rates for debt with similar remaining maturities and ratings (a Level 2 input) and is designed to approximate the amount at which the instruments could be exchanged in an arm's-length transaction between knowledgeable willing parties.

BUSINESS SEGMENTS

BUSINESS SEGMENTS	9 Months Ended
	Sep. 30, 2019
Segment Reporting [Abstract]
BUSINESS SEGMENTS	BUSINESS SEGMENTS Our operations are organized into three segments: potash, Trio ® , and oilfield solutions. The reportable segments are determined by management based on several factors including the types of products and services sold, production processes, markets served, and the financial information available for our chief operating decision maker. We evaluate performance based on the gross margins of the respective business segments and do not allocate corporate selling and administrative expenses, among others, to the respective segments. Intersegment sales prices are market-based and are eliminated in the "Other" column. Information for each segment is provided in the tables that follow (in thousands). Three Months Ended September 30, 2019 Potash Trio ® Oilfield Solutions Other Consolidated Sales $ 29,213 $ 14,637 $ 7,310 $ — $ 51,160 Less: Freight costs 4,728 3,996 — — 8,724 Warehousing and handling 1,190 972 — — 2,162 Cost of goods sold 18,707 9,315 3,841 — 31,863 Lower of cost or net realizable — 1,462 — — 1,462 Gross Margin (Deficit) $ 4,588 $ (1,108 ) $ 3,469 $ — $ 6,949 Depreciation, depletion, and amortization incurred 1 $ 6,048 $ 1,517 $ 747 $ 202 $ 8,514 Nine Months Ended September 30, 2019 Potash Trio ® Oilfield Solutions Other Consolidated Sales $ 99,090 $ 53,881 $ 19,574 $ (1,319 ) $ 171,226 Less: Freight costs 14,110 15,502 861 — 30,473 Warehousing and handling 3,776 2,852 — — 6,628 Cost of goods sold 59,024 32,988 8,682 (1,319 ) 99,375 Lower of cost or net realizable — 1,462 — — 1,462 Gross Margin $ 22,180 $ 1,077 $ 10,031 $ — $ 33,288 Depreciation, depletion, and amortization incurred 1 $ 18,963 $ 4,595 $ 1,170 $ 605 $ 25,333 Three Months Ended September 30, 2018 Potash Trio ® Oilfield Solutions Other Consolidated Sales $ 26,513 $ 10,859 $ 4,038 $ — $ 41,410 Less: Freight costs 3,750 3,136 — — 6,886 Warehousing and handling 1,207 984 1 — 2,192 Cost of goods sold 14,467 6,917 1,988 — 23,372 Lower of cost or net realizable — — — — — Gross Margin (Deficit) $ 7,089 $ (178 ) $ 2,049 $ — $ 8,960 Depreciation, depletion, and amortization incurred 1 $ 5,928 $ 1,612 $ 97 $ 126 $ 7,763 Nine Months Ended September 30, 2018 Potash Trio ® Oilfield Solutions Other Consolidated Sales $ 89,174 $ 51,814 $ 12,918 $ — $ 153,906 Less: Freight costs 12,091 15,067 — — 27,158 Warehousing and handling 3,773 3,285 9 — 7,067 Cost of goods sold 54,973 37,168 3,313 — 95,454 Lower of cost or net realizable — 781 — — 781 Gross Margin (Deficit) $ 18,337 $ (4,487 ) $ 9,596 $ — $ 23,446 Depreciation, depletion and amortization incurred 1 $ 18,474 $ 4,870 $ 239 $ 255 $ 23,838 1 Depreciation, depletion, and amortization incurred for potash and Trio ® excludes depreciation, depletion and amortization amounts absorbed in or relieved from inventory.

ACQUISITION OF LAND AND OTHER A

ACQUISITION OF LAND AND OTHER ASSETS	9 Months Ended
	Sep. 30, 2019
Acquisition of Land And Other Assets [Abstract]
ACQUISITION OF LAND AND OTHER ASSETS	In May 2019, we acquired certain land, water rights, and other related assets in Lea County, New Mexico, from Dinwiddie Cattle Company. We refer to these assets and operations as "Intrepid South." The purchase price was $53 million . We are required to pay Dinwiddie Cattle Company an additional $12 million pending the resolution by Dinwiddie Cattle Company or others of certain issues identified in the diligence process. Dinwiddie Cattle Company also reserved a 20 -year, 10% royalty, proportionally reduced as to our interest, on certain produced water disposal revenue relating to Intrepid South and certain other properties located near Intrepid South. We capitalized $3.2 million of acquisition fees related to the purchase of the Intrepid South assets. In May 2019, we acquired a 50% undivided interest in certain land in Texas. The purchase price, including certain acquisition-related fees, was $3.1 million .

SUMMARY OF SIGNIFICANT ACCOUN_2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	9 Months Ended
	Sep. 30, 2019
Accounting Policies [Abstract]
Financial Statement Presentation	Our unaudited condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission. Certain information and note disclosures normally included in annual financial statements prepared in accordance with U.S. generally accepted accounting principles ("GAAP") have been condensed or omitted pursuant to those rules and regulations. In the opinion of management, all adjustments, consisting of normal recurring accruals considered necessary for a fair presentation of interim financial information, have been included. These unaudited condensed consolidated financial statements should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2018. We have indefinite-lived intangible assets, which are not amortized. We test indefinite-lived intangible assets for impairment at least annually on October 1, and more frequently if circumstances require. We recognize an impairment loss whenever the indefinite-lived intangible assets' fair value is less than their carrying value. We have updated our accounting policies for leases as a result of adopting Accounting Standards Update ("ASU") No. 2016-02, Leases , as discussed in more detail below. We have made no other changes to our significant accounting policies described in our Annual Report on Form 10-K for the year ended December 31, 2018.
Recently Adopted Accounting Standards	Recently Adopted Accounting Standards In February 2016, the Financial Accounting Standards Board ("FASB") issued ASU No. 2016-02, Leases , ("ASC Topic 842"), which we adopted on January 1, 2019, using a modified retrospective method, applying the new standard to all leases existing at the date of initial application. We used the effective date as our date of initial application. Consequently, financial information will not be updated, and disclosures required under the new standard will not be provided for dates before January 1, 2019. The new standard requires lessees to recognize lease assets and liabilities on their balance sheet for those leases classified as operating leases under previous GAAP. These assets and liabilities are recorded generally at the present value of the contracted lease payments, using the rate implicit in the lease if known. If the implicit rate is not known, we use our estimated incremental borrowing rate. We do not account for lease and non-lease components separately and we do not apply the requirements of ASC Topic 842 to short-term leases with a term of one year or less at inception. Lease expense is recognized on a straight-line basis over the lease term. As a result of adopting the new standard, we recorded operating lease right-of-use ("ROU") assets of $5.9 million and operating lease liabilities of $6.1 million on January 1, 2019.
Pronouncements Issued But Not yet Adopted	Pronouncements Issued But Not Yet Adopted In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - (Topic 326): Measurement of Credit Losses on Financial Instruments , which changes the way entities recognize impairment of many financial assets by requiring immediate recognition of estimated credit losses expected to occur over their remaining life. This guidance is effective for us for annual and interim periods beginning after December 15, 2019. Because we have historically experienced minimal bad debt expense related to our trade receivables, we do not expect the adoption of this standard to have a material impact on our condensed consolidated financial statements.
Disaggregation of Revenue	The tables below show the disaggregation of revenue by product and reconciles disaggregated revenue to segment revenue for the three and nine months ended September 30, 2019, and 2018. We believe the disaggregation of revenue by products best depicts how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic conditions (in thousands): Three Months Ended September 30, 2019 Product Potash Segment Trio ® Segment Oilfield Solutions Segment Intersegment Eliminations Total Potash $ 24,242 $ — $ — $ — $ 24,242 Trio ® — 13,370 — — 13,370 Water 574 1,211 5,488 — 7,273 Salt 2,736 56 — — 2,792 Magnesium Chloride 949 — — — 949 Brines 712 — — — 712 Other — — 1,822 — 1,822 Total Revenue $ 29,213 $ 14,637 $ 7,310 $ — $ 51,160 Nine Months Ended September 30, 2019 Product Potash Segment Trio ® Segment Oilfield Solutions Segment Intersegment Eliminations Total Potash $ 84,807 $ — $ 2,040 $ (1,319 ) $ 85,528 Trio ® — 50,283 — — 50,283 Water 1,371 3,090 13,864 — 18,325 Salt 8,105 508 — — 8,613 Magnesium Chloride 2,895 — — — 2,895 Brines 1,912 — — — 1,912 Other — — 3,670 — 3,670 Total Revenue $ 99,090 $ 53,881 $ 19,574 $ (1,319 ) $ 171,226 Three Months Ended September 30, 2018 Product Potash Segment Trio ® Segment Oilfield Solutions Segment Intersegment Eliminations Total Potash $ 22,170 $ — $ — $ — $ 22,170 Trio ® — 10,320 — — 10,320 Water 431 494 3,803 — 4,728 Salt 1,364 45 — — 1,409 Magnesium Chloride 2,029 — — — 2,029 Brines 519 — — — 519 Other — — 235 — 235 Total Revenue $ 26,513 $ 10,859 $ 4,038 $ — $ 41,410 Nine Months Ended September 30, 2018 Product Potash Segment Trio ® Segment Oilfield Solutions Segment Intersegment Eliminations Total Potash $ 77,422 $ — $ — $ — $ 77,422 Trio ® — 50,397 — — 50,397 Water 951 1,272 12,528 — 14,751 Salt 4,929 145 — — 5,074 Magnesium Chloride 4,680 — — — 4,680 Brines 1,192 — — — 1,192 Other — — 390 — 390 Total Revenue $ 89,174 $ 51,814 $ 12,918 $ — $ 153,906
Reclassifications of Prior Period Presentation	Certain prior period amounts have been reclassified in order to conform to the current period presentation. These reclassifications had no effect on the reported results of operations.

EARNINGS PER SHARE (Tables)

EARNINGS PER SHARE (Tables)	9 Months Ended
	Sep. 30, 2019
Earnings Per Share [Abstract]
Schedule of Calculation of Basic and Diluted Loss or Earnings Per Share	Basic earnings per share is computed by dividing net income by the weighted-average number of shares of common stock outstanding during the period. For purposes of determining diluted earnings per share, basic weighted-average common shares outstanding is adjusted to include potentially dilutive securities, including restricted stock, stock options, and performance units. The treasury-stock method is used to measure the dilutive impact of potentially dilutive shares. Potentially dilutive shares are excluded from the diluted weighted-average shares outstanding computation in periods in which they have an anti-dilutive effect. The following table shows the calculation of basic and diluted earnings per share (in thousands, except per share amounts): Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Net (loss) income $ (217 ) $ 3,350 $ 11,549 $ 4,149 Basic weighted-average common shares outstanding 129,170 128,233 128,934 127,921 Add: Dilutive effect of restricted stock — 1,741 1,296 2,098 Add: Dilutive effect of stock options — 920 826 964 Diluted weighted-average common shares outstanding 129,170 130,894 131,056 130,983 Basic $ 0.00 $ 0.03 $ 0.09 $ 0.03 Diluted $ 0.00 $ 0.03 $ 0.09 $ 0.03
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	The following table shows the shares that have an anti-dilutive effect and are excluded from the diluted weighted-average shares outstanding computations (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Anti-dilutive effect of restricted stock 2,252 278 414 139 Anti-dilutive effect of stock options outstanding 3,219 1,748 1,655 1,354

CASH, CASH EQUIVALENTS AND RE_2

CASH, CASH EQUIVALENTS AND RESTRICTED CASH (Tables)	9 Months Ended
	Sep. 30, 2019
Cash and Cash Equivalents [Abstract]
Cash, Cash Equivalents And Restricted Cash	Total cash, cash equivalents and restricted cash, as shown on the condensed consolidated statements of cash flows are included in the following accounts at September 30, 2019, and 2018 (in thousands): September 30, 2019 September 30, 2018 Cash and cash equivalents $ 13,023 $ 37,214 Restricted cash included in other current assets 150 — Restricted cash included in other long-term assets 486 480 Total cash, cash equivalents, and restricted cash as shown in the statement of cash flows $ 13,659 $ 37,694

INVENTORY AND LONG-TERM PARTS_2

INVENTORY AND LONG-TERM PARTS INVENTORY (Tables)	9 Months Ended
	Sep. 30, 2019
Inventory Disclosure [Abstract]
Summary of Inventory	The following summarizes our inventory, recorded at the lower of weighted-average cost or estimated net realizable value, as of September 30, 2019 , and December 31, 2018 (in thousands): September 30, 2019 December 31, 2018 Finished goods product inventory $ 42,533 $ 48,370 In-process mineral inventory 30,766 24,325 Total product inventory 73,299 72,695 Current parts inventory, net 12,064 9,351 Total current inventory, net 85,363 82,046 Long-term parts inventory, net 28,476 30,031 Total inventory, net $ 113,839 $ 112,077

PROPERTY, PLANT, EQUIPMENT, A_2

PROPERTY, PLANT, EQUIPMENT, AND MINERAL PROPERTIES (Tables)	9 Months Ended
	Sep. 30, 2019
Property, Plant and Equipment [Abstract]
Schedule of Property, Plant, Equipment, and Mineral Properties	Property, plant, equipment, and mineral properties were comprised of the following (in thousands): September 30, 2019 December 31, 2018 Land $ 27,274 $ 519 Ponds and land improvements 64,259 58,961 Mineral properties and development costs 145,057 139,418 Buildings and plant 82,056 81,429 Machinery and equipment 248,981 241,977 Vehicles 6,131 5,669 Office equipment and improvements 8,738 13,779 Operating lease ROU assets 6,558 — Construction in progress 8,896 2,822 Total property, plant, equipment, and mineral properties, gross $ 597,950 $ 544,574 Less: accumulated depreciation, depletion, and amortization (216,182 ) (198,365 ) Total property, plant, equipment, and mineral properties, net $ 381,768 $ 346,209
Schedule of Depreciation, Depletion and Accretion	We incurred the following expenses for depreciation, depletion, and amortization, including expenses capitalized into inventory, for the following periods (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Depreciation $ 7,128 $ 7,021 $ 20,881 $ 20,919 Depletion 705 742 2,812 2,919 Amortization of right of use assets 681 — 1,640 — Total incurred $ 8,514 $ 7,763 $ 25,333 $ 23,838

LEASES (Tables)

LEASES (Tables)	9 Months Ended
	Sep. 30, 2019
Leases [Abstract]
Leases Recorded on Balance Sheets	Leases recorded on the balance sheet consist of the following (amounts in thousands): Leases Classification on the Balance Sheet Balance as of Assets Operating lease ROU assets, net Property, plant, equipment, and mineral properties, net $ 5,105 Liabilities Current operating lease liabilities Other current liabilities $ 1,889 Non-current operating lease liabilities Operating lease liabilities $ 3,374
Other Information Related to Lease Term and Discount Rate, and Components of Lease Expense	Other information related to lease term and discount rate is as follows: As of September 30, 2019 Weighted average remaining lease term - operating leases (in years) 2.8 Weighted average discount rate - operating leases 5.75 % The components of lease expense are as follows: For the Three Months Ended September 30, 2019 For the Nine Months Ended September 30, 2019 The components of lease expense were as follows: Operating lease expense $ 574 $ 1,702 Short-term lease expense 29 80 Total lease expense $ 603 $ 1,782
Maturities of Lease Liabilities	aturities of lease liabilities are summarized as follows (amounts in thousands): Years Ending December 31, Operating Leases 2019 (excluding the nine months ended September 30, 2019) $ 575 2020 2,058 2021 1,761 2022 1,135 2023 169 Thereafter 32 Total future minimum lease payments $ 5,730 Less - amount representing interest 467 Present value of future minimum lease payments $ 5,263 Less - current lease obligations 1,889 Long-term lease obligations $ 3,374
Maturities of Lease Liabilities Prior to the Adoption of ASC Topic 842	As of December 31, 2018, and prior to the adoption of ASC Topic 842, the annual future minimum lease payments were as follows: Years Ending December 31, Operating Leases 2019 $ 2,266 2020 1,874 2021 1,602 2022 1,083 2023 172 Thereafter 1,343 Total $ 8,340

DEBT (Tables)

DEBT (Tables)	9 Months Ended
	Sep. 30, 2019
Debt Disclosure [Abstract]
Schedule of Long Term Debt	Our outstanding long-term debt, net, as of September 30, 2019 , and December 31, 2018 , was as follows (in thousands): September 30, 2019 December 31, 2018 Notes $ 50,000 $ 50,000 Less current portion of long-term debt (20,000 ) — Less deferred financing costs (275 ) (358 ) Long-term debt, net $ 29,725 $ 49,642
Schedule Of Interest Expense	Amounts included in interest expense, net for the three and nine months ended September 30, 2019 , and 2018, were as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Interest on Notes and credit facility $ 804 $ 704 $ 2,143 $ 2,155 Amortization of deferred financing costs 80 183 217 550 Gross interest expense 884 887 2,360 2,705 Less capitalized interest (35 ) (23 ) (102 ) (85 ) Interest expense, net $ 849 $ 864 $ 2,258 $ 2,620

ASSET RETIREMENT OBLIGATION (Ta

ASSET RETIREMENT OBLIGATION (Tables)	9 Months Ended
	Sep. 30, 2019
Asset Retirement Obligation Disclosure [Abstract]
Schedule of Changes to Asset Retirement Obligation	Following is a table of the changes to our asset retirement obligation for the following periods (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Asset retirement obligation, at beginning of period $ 23,959 $ 22,310 $ 23,125 $ 21,476 Accretion of discount 513 417 1,347 1,251 Total asset retirement obligation, at end of period $ 24,472 $ 22,727 $ 24,472 $ 22,727

REVENUE (Tables)

REVENUE (Tables)	9 Months Ended
	Sep. 30, 2019
Revenue from Contract with Customer [Abstract]
Contract Balances	The timing of revenue recognition, billings, and cash collection may result in contract assets or contract liabilities. For certain contracts, the customer has agreed to pay us before we have satisfied our performance obligations. Customer payments received before we have satisfied our performance obligations are accounted for as a contract liability, and are included in "Other current liabilities" on the condensed consolidated balance sheets. Our contract liability activity for the three and nine months ended September 30, 2019, and 2018, is shown below (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Beginning balance $ 10,643 $ 7,278 $ 11,678 $ — Additions 3,816 6,156 7,343 13,915 Recognized as revenue during period (1,054 ) (3,597 ) (5,616 ) (4,078 ) Ending balance $ 13,405 $ 9,837 $ 13,405 $ 9,837
Disaggregation of Revenue	The tables below show the disaggregation of revenue by product and reconciles disaggregated revenue to segment revenue for the three and nine months ended September 30, 2019, and 2018. We believe the disaggregation of revenue by products best depicts how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic conditions (in thousands): Three Months Ended September 30, 2019 Product Potash Segment Trio ® Segment Oilfield Solutions Segment Intersegment Eliminations Total Potash $ 24,242 $ — $ — $ — $ 24,242 Trio ® — 13,370 — — 13,370 Water 574 1,211 5,488 — 7,273 Salt 2,736 56 — — 2,792 Magnesium Chloride 949 — — — 949 Brines 712 — — — 712 Other — — 1,822 — 1,822 Total Revenue $ 29,213 $ 14,637 $ 7,310 $ — $ 51,160 Nine Months Ended September 30, 2019 Product Potash Segment Trio ® Segment Oilfield Solutions Segment Intersegment Eliminations Total Potash $ 84,807 $ — $ 2,040 $ (1,319 ) $ 85,528 Trio ® — 50,283 — — 50,283 Water 1,371 3,090 13,864 — 18,325 Salt 8,105 508 — — 8,613 Magnesium Chloride 2,895 — — — 2,895 Brines 1,912 — — — 1,912 Other — — 3,670 — 3,670 Total Revenue $ 99,090 $ 53,881 $ 19,574 $ (1,319 ) $ 171,226 Three Months Ended September 30, 2018 Product Potash Segment Trio ® Segment Oilfield Solutions Segment Intersegment Eliminations Total Potash $ 22,170 $ — $ — $ — $ 22,170 Trio ® — 10,320 — — 10,320 Water 431 494 3,803 — 4,728 Salt 1,364 45 — — 1,409 Magnesium Chloride 2,029 — — — 2,029 Brines 519 — — — 519 Other — — 235 — 235 Total Revenue $ 26,513 $ 10,859 $ 4,038 $ — $ 41,410 Nine Months Ended September 30, 2018 Product Potash Segment Trio ® Segment Oilfield Solutions Segment Intersegment Eliminations Total Potash $ 77,422 $ — $ — $ — $ 77,422 Trio ® — 50,397 — — 50,397 Water 951 1,272 12,528 — 14,751 Salt 4,929 145 — — 5,074 Magnesium Chloride 4,680 — — — 4,680 Brines 1,192 — — — 1,192 Other — — 390 — 390 Total Revenue $ 89,174 $ 51,814 $ 12,918 $ — $ 153,906

COMPENSATION PLANS (Tables)

COMPENSATION PLANS (Tables)	9 Months Ended
	Sep. 30, 2019
Share-based Payment Arrangement [Abstract]
Schedule of Outstanding Share Based Awards	As of September 30, 2019, the following awards were outstanding under the Plan: Outstanding as of Restricted Shares 2,800,398 Non-qualified Stock Options 3,218,670

BUSINES SEGMENTS (Tables)

BUSINES SEGMENTS (Tables)	9 Months Ended
	Sep. 30, 2019
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment	Three Months Ended September 30, 2019 Potash Trio ® Oilfield Solutions Other Consolidated Sales $ 29,213 $ 14,637 $ 7,310 $ — $ 51,160 Less: Freight costs 4,728 3,996 — — 8,724 Warehousing and handling 1,190 972 — — 2,162 Cost of goods sold 18,707 9,315 3,841 — 31,863 Lower of cost or net realizable — 1,462 — — 1,462 Gross Margin (Deficit) $ 4,588 $ (1,108 ) $ 3,469 $ — $ 6,949 Depreciation, depletion, and amortization incurred 1 $ 6,048 $ 1,517 $ 747 $ 202 $ 8,514 Nine Months Ended September 30, 2019 Potash Trio ® Oilfield Solutions Other Consolidated Sales $ 99,090 $ 53,881 $ 19,574 $ (1,319 ) $ 171,226 Less: Freight costs 14,110 15,502 861 — 30,473 Warehousing and handling 3,776 2,852 — — 6,628 Cost of goods sold 59,024 32,988 8,682 (1,319 ) 99,375 Lower of cost or net realizable — 1,462 — — 1,462 Gross Margin $ 22,180 $ 1,077 $ 10,031 $ — $ 33,288 Depreciation, depletion, and amortization incurred 1 $ 18,963 $ 4,595 $ 1,170 $ 605 $ 25,333 Three Months Ended September 30, 2018 Potash Trio ® Oilfield Solutions Other Consolidated Sales $ 26,513 $ 10,859 $ 4,038 $ — $ 41,410 Less: Freight costs 3,750 3,136 — — 6,886 Warehousing and handling 1,207 984 1 — 2,192 Cost of goods sold 14,467 6,917 1,988 — 23,372 Lower of cost or net realizable — — — — — Gross Margin (Deficit) $ 7,089 $ (178 ) $ 2,049 $ — $ 8,960 Depreciation, depletion, and amortization incurred 1 $ 5,928 $ 1,612 $ 97 $ 126 $ 7,763 Nine Months Ended September 30, 2018 Potash Trio ® Oilfield Solutions Other Consolidated Sales $ 89,174 $ 51,814 $ 12,918 $ — $ 153,906 Less: Freight costs 12,091 15,067 — — 27,158 Warehousing and handling 3,773 3,285 9 — 7,067 Cost of goods sold 54,973 37,168 3,313 — 95,454 Lower of cost or net realizable — 781 — — 781 Gross Margin (Deficit) $ 18,337 $ (4,487 ) $ 9,596 $ — $ 23,446 Depreciation, depletion and amortization incurred 1 $ 18,474 $ 4,870 $ 239 $ 255 $ 23,838 1 Depreciation, depletion, and amortization incurred for potash and Trio ® excludes depreciation, depletion and amortization amounts absorbed in or relieved from inventory.

COMPANY BACKGROUND (Narrative)

COMPANY BACKGROUND (Narrative) (Details)	9 Months Ended
	Sep. 30, 2019segmentFacility
Number of mining facilities | Facility	3
Number of reportable segments | segment	3

SUMMARY OF SIGNIFICANT ACCOUN_3

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Jan. 01, 2019
Accounting Policies [Abstract]
Operating Lease right-of-use	$ 5,105	$ 5,900
Operating Lease, Liability	$ 5,263	$ 6,100

EARNINGS PER SHARE (Schedule of

EARNINGS PER SHARE (Schedule of Calculation of Basic and Diluted Loss or Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Earnings Per Share [Abstract]
Net (Loss) Income	$ (217)	$ 3,350	$ 11,549	$ 4,149
Basic weighted average common shares outstanding (in shares)	129,170	128,233	128,934	127,921
Add: Dilutive effect of restricted stock (in shares)		1,741	1,296	2,098
Add: Dilutive effect of stock options (in shares)		920	826	964
Diluted weighted average common shares outstanding (in shares)	129,170	130,894	131,056	130,983
Basic (in dollars per share)	$ 0	$ 0.03	$ 0.09	$ 0.03
Diluted (in dollars per share)	$ 0	$ 0.03	$ 0.09	$ 0.03

EARNINGS PER SHARE (Schedule _2

EARNINGS PER SHARE (Schedule of Anti-Dilutive Shares) (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Restricted Shares [Member]
Anti-dilutive weighted average non-vested shares
Anti-dilutive shares (in shares)	2,252	278	414	139
Stock Options [Member]
Anti-dilutive weighted average non-vested shares
Anti-dilutive shares (in shares)	3,219	1,748	1,655	1,354

CASH, CASH EQUIVALENTS AND RE_3

CASH, CASH EQUIVALENTS AND RESTRICTED CASH (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018	Sep. 30, 2018	Dec. 31, 2017
Cash and Cash Equivalents [Abstract]
Cash and cash equivalents	$ 13,023	$ 33,222	$ 37,214
Restricted cash included in other current assets	150		0
Restricted cash included in other long-term assets	486		480
Total cash, cash equivalents, and restricted cash shown in the statement of cash flows	$ 13,659	$ 33,704	$ 37,694	$ 1,549

INVENTORY AND LONG-TERM PARTS_3

INVENTORY AND LONG-TERM PARTS INVENTORY (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Inventory Disclosure [Abstract]
Inventory valuation reserves		$ 600		$ 600	$ 1,700
Lower of cost or net realizable value inventory adjustments	$ 1,462	$ 0	$ 1,462	$ 781

INVENTORY AND LONG-TERM PARTS_4

INVENTORY AND LONG-TERM PARTS INVENTORY (Summary of Inventory) (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Inventory [Line Items]
Finished goods product inventory	$ 42,533	$ 48,370
In-process mineral inventory	30,766	24,325
Total product inventory	73,299	72,695
Current parts inventory, net	12,064	9,351
Total current inventory, net	85,363	82,046
Long-term parts inventory, net	28,476	30,031
Total inventory, net	$ 113,839	$ 112,077

PROPERTY, PLANT, EQUIPMENT, A_3

PROPERTY, PLANT, EQUIPMENT, AND MINERAL PROPERTIES (Schedule of Property, Plant, Equipment, and Mineral Properties) (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Property, plant, equipment, and mineral properties
Total property, plant, equipment, and mineral properties, gross	$ 597,950	$ 544,574
Less: accumulated depreciation, depletion, and amortization	(216,182)	(198,365)
Total property, plant, equipment and mineral properties, net	381,768	346,209
Land [Member]
Property, plant, equipment, and mineral properties
Total property, plant, equipment, and mineral properties, gross	27,274	519
Ponds and Land Improvements [Member]
Property, plant, equipment, and mineral properties
Total property, plant, equipment, and mineral properties, gross	64,259	58,961
Mineral Properties And Development Costs [Member]
Property, plant, equipment, and mineral properties
Total property, plant, equipment, and mineral properties, gross	145,057	139,418
Buildings and Plant [Member]
Property, plant, equipment, and mineral properties
Total property, plant, equipment, and mineral properties, gross	82,056	81,429
Machinery and Equipment [Member]
Property, plant, equipment, and mineral properties
Total property, plant, equipment, and mineral properties, gross	248,981	241,977
Vehicles [Member]
Property, plant, equipment, and mineral properties
Total property, plant, equipment, and mineral properties, gross	6,131	5,669
Office Equipment and Improvements [Member]
Property, plant, equipment, and mineral properties
Total property, plant, equipment, and mineral properties, gross	8,738	13,779
Operating Lease ROU Assets [Member]
Property, plant, equipment, and mineral properties
Total property, plant, equipment, and mineral properties, gross	6,558	0
Construction in Progress [Member]
Property, plant, equipment, and mineral properties
Total property, plant, equipment, and mineral properties, gross	$ 8,896	$ 2,822

PROPERTY, PLANT, EQUIPMENT, A_4

PROPERTY, PLANT, EQUIPMENT, AND MINERAL PROPERTIES (Schedule of Depreciation, Depletion, and Accretion) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Property, Plant and Equipment [Abstract]
Depreciation		$ 7,128	$ 7,021	$ 20,881	$ 20,919
Depletion		705	742	2,812	2,919
Amortization of right of use assets		681	0	1,640	0
Total incurred	[1]	$ 8,514	$ 7,763	$ 25,333	$ 23,838
[1]	Depreciation, depletion, and amortization incurred for potash and Trio® excludes depreciation, depletion and amortization amounts absorbed in or relieved from inventory.

LEASES (Leases Recorded on Bala

LEASES (Leases Recorded on Balance Sheets) (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
Leases [Abstract]
Operating lease ROU assets	$ 5,105	$ 5,900
Current operating lease liabilities	1,889
Non-current operating lease liabilities	$ 3,374		$ 0

LEASES (Other Information Relat

LEASES (Other Information Related to Lease Term and Discount Rate) (Details)	Sep. 30, 2019
Leases [Abstract]
Operating lease, weighted average remaining lease term (in years)	2 years 10 months
Operating lease, weighted average discount rate, percent	5.75%

LEASES (Components of Lease Exp

LEASES (Components of Lease Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Leases [Abstract]
Operating lease expense	$ 574		$ 1,702
Short-term lease expense	29		80
Total lease expense	$ 603		$ 1,782
Rental and lease expense		$ 1,000		$ 2,900

LEASES (Maturities of Lease Lia

LEASES (Maturities of Lease Liabilities) (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
Leases [Abstract]
2019 (excluding the nine months ended September 30, 2019)	$ 575
2020	2,058
2021	1,761
2022	1,135
2023	169
Thereafter	32
Total future minimum lease payments	5,730
Less - amount representing interest	467
Present value of future minimum lease payments	5,263	$ 6,100
Less - current lease obligations	1,889
Long-term lease obligations	$ 3,374		$ 0
Prior to the adoption of ASC Topic 842 [Abstract]
2019			2,266
2020			1,874
2021			1,602
2022			1,083
2023			172
Thereafter			1,343
Total			$ 8,340

DEBT (Narrative) (Details)

DEBT (Narrative) (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019USD ($)	Sep. 30, 2018USD ($)	Sep. 30, 2019USD ($)	Sep. 30, 2018USD ($)	Aug. 01, 2019USD ($)	Jun. 30, 2019USD ($)	Dec. 31, 2018USD ($)
Debt
Interest expense	$ 884	$ 887	$ 2,360	$ 2,705
Credit facility, maturity date			Aug. 1, 2024
Proceeds from credit facility			$ 30,317	13,500
Repayments of credit facility			10,500	17,400
Senior Notes [Member]
Debt
Long-term debt	50,000		$ 50,000				$ 50,000
Minimum fixed charge coverage ratio for the four quarters ending June 30, 2019			1.30
Fixed charge coverage ratio			12.6
Maximum leverage ratio for quarter ending June 30, 2019			3.5
Leverage ratio			1.2
Bank Of Montreal [Member]
Debt
Credit facility, maximum borrowing capacity					$ 75,000	$ 50,000
Line of credit, accordion feature					75,000
Credit facility, sublimit letters of credit					$ 7,500
Proceeds from credit facility		0	$ 30,300	13,500
Repayments of credit facility		$ 0	10,500	$ 17,400
Line of credit, outstanding	20,000		20,000
Letters of credit outstanding, amount	1,000		1,000
Line of credit facility, current borrowing capacity	54,200		$ 54,200
Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member] | Bank Of Montreal [Member]
Debt
Credit facility interest			2.00%
Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member] | Bank Of Montreal [Member]
Debt
Credit facility interest			1.25%
Series A Senior Notes [Member] | Senior Notes [Member]
Debt
Long-term debt	$ 20,000		$ 20,000
Interest Rate	3.73%		3.73%
Series B Senior Notes [Member] | Senior Notes [Member]
Debt
Long-term debt	$ 15,000		$ 15,000
Interest Rate	4.63%		4.63%
Series C Senior Notes [Member] | Senior Notes [Member]
Debt
Long-term debt	$ 15,000		$ 15,000
Interest Rate	4.78%		4.78%

DEBT SCHEDULE OF LONG TERM DEBT

DEBT SCHEDULE OF LONG TERM DEBT (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Debt
Less current portion of long-term debt	$ (20,000)	$ 0
Senior Notes [Member]
Debt
Senior Notes	50,000	50,000
Less current portion of long-term debt	(20,000)	0
Less deferred financing costs	(275)	(358)
Long-term debt, net	$ 29,725	$ 49,642

DEBT SCHEDULE OF INTEREST EXPEN

DEBT SCHEDULE OF INTEREST EXPENSE (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Debt Disclosure [Abstract]
Interest on notes and credit facility	$ 804	$ 704	$ 2,143	$ 2,155
Amortization of deferred financing costs	80	183	217	550
Gross interest expense	884	887	2,360	2,705
Less capitalized interest	(35)	(23)	(102)	(85)
Interest expense, net	$ 849	$ 864	$ 2,258	$ 2,620

INTANGIBLE ASSETS (Details)

INTANGIBLE ASSETS (Details) - USD ($) $ in Thousands	1 Months Ended
	May 31, 2019	Sep. 30, 2019	Dec. 31, 2018
Indefinite-lived Intangible Assets [Line Items]
Intangible assets, water rights		$ 19,184	$ 2,311
Water rights acquired in the Intrepid South asset acquisition	$ 16,900

FINANCIAL INFORMATION FOR SUB_2

FINANCIAL INFORMATION FOR SUBSIDIARY GUARANTORS OF POSSIBLE FUTURE PUBLIC DEBT (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Guarantees [Abstract]
Cash	$ 13	$ 33.2

ASSET RETIREMENT OBLIGATION (Na

ASSET RETIREMENT OBLIGATION (Narrative) (Details) $ in Millions	Sep. 30, 2019USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Asset retirement obligation, undiscounted amount	$ 59.5
Measurement Input, Risk Free Interest Rate [Member] | Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit Adjusted Risk-Free Rates to Discount Abandonment Liabilities	0.069
Measurement Input, Risk Free Interest Rate [Member] | Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Credit Adjusted Risk-Free Rates to Discount Abandonment Liabilities	0.097
Other Current Liabilities [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Current portion of asset retirement obligation	$ 0.3

ASSET RETIREMENT OBLIGATION (Sc

ASSET RETIREMENT OBLIGATION (Schedule of Changes to Asset Retirement Obligation) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Asset Retirement Obligation Disclosure [Abstract]
Asset retirement obligation, at beginning of period	$ 23,959	$ 22,310	$ 23,125	$ 21,476
Accretion of discount	513	417	1,347	1,251
Total asset retirement obligation, at end of period	$ 24,472	$ 22,727	$ 24,472	$ 22,727

REVENUE (Contract Balances) (De

REVENUE (Contract Balances) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenue from Contract with Customer [Abstract]
Beginning balance	$ 10,643	$ 7,278	$ 11,678	$ 0
Additions	3,816	6,156	7,343	13,915
Recognized as revenue during period	(1,054)	(3,597)	(5,616)	(4,078)
Ending balance	$ 13,405	$ 9,837	$ 13,405	$ 9,837

REVENUE (Disaggregation of Reve

REVENUE (Disaggregation of Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Potash [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	$ 24,242	$ 22,170	$ 85,528	$ 77,422
Trio [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	13,370	10,320	50,283	50,397
Water Product [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	7,273	4,728	18,325	14,751
Salt [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	2,792	1,409	8,613	5,074
Magnesium Chloride [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	949	2,029	2,895	4,680
Brines [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	712	519	1,912	1,192
Other [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	1,822	235	3,670	390
Mineral [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	51,160	41,410	171,226	153,906
Potash [Member] | Potash [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	24,242	22,170	84,807	77,422
Potash [Member] | Trio [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	0	0	0	0
Potash [Member] | Water Product [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	574	431	1,371	951
Potash [Member] | Salt [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	2,736	1,364	8,105	4,929
Potash [Member] | Magnesium Chloride [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	949	2,029	2,895	4,680
Potash [Member] | Brines [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	712	519	1,912	1,192
Potash [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	0	0	0	0
Potash [Member] | Mineral [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	29,213	26,513	99,090	89,174
Trio [Member] | Potash [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	0	0	0	0
Trio [Member] | Trio [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	13,370	10,320	50,283	50,397
Trio [Member] | Water Product [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	1,211	494	3,090	1,272
Trio [Member] | Salt [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	56	45	508	145
Trio [Member] | Magnesium Chloride [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	0	0	0	0
Trio [Member] | Brines [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	0	0	0	0
Trio [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	0	0	0	0
Trio [Member] | Mineral [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	14,637	10,859	53,881	51,814
Oil Field Solutions [Member] | Potash [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	0	0	2,040	0
Oil Field Solutions [Member] | Trio [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	0	0	0	0
Oil Field Solutions [Member] | Water Product [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	5,488	3,803	13,864	12,528
Oil Field Solutions [Member] | Salt [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	0	0	0	0
Oil Field Solutions [Member] | Magnesium Chloride [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	0	0	0	0
Oil Field Solutions [Member] | Brines [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	0	0	0	0
Oil Field Solutions [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	1,822	235	3,670	390
Oil Field Solutions [Member] | Mineral [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	7,310	4,038	19,574	12,918
Intersegment Eliminations [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	0	0	(1,319)	0
Intersegment Eliminations [Member] | Potash [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	0	0	(1,319)	0
Intersegment Eliminations [Member] | Trio [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	0	0	0	0
Intersegment Eliminations [Member] | Water Product [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	0	0	0	0
Intersegment Eliminations [Member] | Salt [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	0	0	0	0
Intersegment Eliminations [Member] | Magnesium Chloride [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	0	0	0	0
Intersegment Eliminations [Member] | Brines [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	0	0	0	0
Intersegment Eliminations [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	$ 0	$ 0	$ 0	$ 0

COMPENSATION PLANS (Narrative)

COMPENSATION PLANS (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Equity Incentive Compensation Plan [Abstract]
Shares available for issuance	8,800,000		8,800,000
Non Qualified Stock Options [Abstract]
Compensation expense	$ 1	$ 1.3	$ 3.2	$ 3.6
Unrecognized compensation expense	$ 6.4		$ 6.4
Minimum [Member]
Non Qualified Stock Options [Abstract]
Period over which grants vest (in years)	1 year
Maximum [Member]
Non Qualified Stock Options [Abstract]
Period over which grants vest (in years)	2 years
Restricted Shares [Member]
Restricted Stock [Abstract]
Shares granted	17,386

COMPENSATION PLANS (Schedule of

COMPENSATION PLANS (Schedule of Outstanding Share Based Awards) (Details)	Sep. 30, 2019shares
Restricted Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards outstanding, restricted stock	2,800,398
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards outstanding, options	3,218,670

INCOME TAXES (Narrative) (Detai

INCOME TAXES (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Tax Disclosure [Abstract]
Effective Tax Rate	0.00%	2.00%	0.00%	1.00%
Income Tax Expense	$ 8	$ (46)	$ 8	$ (46)

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Narrative) (Details) $ in Millions	Sep. 30, 2019USD ($)acre ft	Dec. 31, 2018USD ($)
Commitments and Contingencies Disclosure [Abstract]
Security placed with the State of Utah and BLM	$ 19.1	$ 19.1
Long-term restricted cash deposits	0.5	0.5
Surety bonds issued by an insurer	$ 18.6	$ 18.6
Loss Contingencies [Line Items]
Water sales allowance, acre foot | acre ft	5,700
Pecos river water right | acre ft	20,000
Compensatory Damages [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Estimated contingency	$ 28
Compensatory Damages [Member] | Minimum [Member]
Loss Contingencies [Line Items]
Estimated contingency	23
Exemplary Damages [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Estimated contingency	37
Exemplary Damages [Member] | Minimum [Member]
Loss Contingencies [Line Items]
Estimated contingency	$ 28

FAIR VALUE (Details)

FAIR VALUE (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Senior notes, fair value	$ 50.1	$ 48.1

BUSINESS SEGMENTS (Narrative) (

BUSINESS SEGMENTS (Narrative) (Details)	9 Months Ended
	Sep. 30, 2019segment
Segment Reporting [Abstract]
Number of reportable segments	3

BUSINESS SEGMENT (Information b

BUSINESS SEGMENT (Information by Segment) (Details) - USD ($) $ in Thousands		3 Months Ended			9 Months Ended
		Sep. 30, 2019		Sep. 30, 2018	Sep. 30, 2019		Sep. 30, 2018
Segment Reporting Information [Line Items]
Lower of cost or net realizable value inventory adjustments		$ 1,462		$ 0	$ 1,462		$ 781
Gross Margin (Deficit)		6,949		8,960	33,288		23,446
Depreciation, depletion and amortization expense	[1]	8,514		7,763	25,333		23,838
Operating Segments [Member] | Potash [Member]
Segment Reporting Information [Line Items]
Lower of cost or net realizable value inventory adjustments					0		0
Gross Margin (Deficit)		4,588		7,089	22,180		18,337
Depreciation, depletion and amortization expense	[1]	6,048		5,928	18,963		18,474
Operating Segments [Member] | Trio [Member]
Segment Reporting Information [Line Items]
Lower of cost or net realizable value inventory adjustments		1,462		0	1,462		781
Gross Margin (Deficit)		(1,108)		(178)	1,077		(4,487)
Depreciation, depletion and amortization expense	[1]	1,517		1,612	4,595		4,870
Operating Segments [Member] | Oil Field Solutions [Member]
Segment Reporting Information [Line Items]
Lower of cost or net realizable value inventory adjustments				0	0		0
Gross Margin (Deficit)		3,469		2,049	10,031		9,596
Depreciation, depletion and amortization expense		747	[1]	97	1,170	[1]	239	[1]
Corporate/Other [Member]
Segment Reporting Information [Line Items]
Gross Margin (Deficit)		0		0	0		0
Depreciation, depletion and amortization expense	[1]	202		126	605		255
Freight Costs [Member]
Segment Reporting Information [Line Items]
Cost of Goods Sold		8,724		6,886	30,473		27,158
Freight Costs [Member] | Operating Segments [Member] | Potash [Member]
Segment Reporting Information [Line Items]
Cost of Goods Sold		4,728		3,750	14,110		12,091
Freight Costs [Member] | Operating Segments [Member] | Trio [Member]
Segment Reporting Information [Line Items]
Cost of Goods Sold		3,996		3,136	15,502		15,067
Freight Costs [Member] | Operating Segments [Member] | Oil Field Solutions [Member]
Segment Reporting Information [Line Items]
Cost of Goods Sold		0		0	861		0
Warehouse and Handling [Member]
Segment Reporting Information [Line Items]
Cost of Goods Sold		2,162		2,192	6,628		7,067
Warehouse and Handling [Member] | Operating Segments [Member] | Potash [Member]
Segment Reporting Information [Line Items]
Cost of Goods Sold		1,190		1,207	3,776		3,773
Warehouse and Handling [Member] | Operating Segments [Member] | Trio [Member]
Segment Reporting Information [Line Items]
Cost of Goods Sold		972		984	2,852		3,285
Warehouse and Handling [Member] | Operating Segments [Member] | Oil Field Solutions [Member]
Segment Reporting Information [Line Items]
Cost of Goods Sold		0		1	0		9
Warehouse and Handling [Member] | Corporate/Other [Member]
Segment Reporting Information [Line Items]
Cost of Goods Sold		0		0	0		0
Mineral [Member]
Segment Reporting Information [Line Items]
Sales		51,160		41,410	171,226		153,906
Cost of Goods Sold		31,863		23,372	99,375		95,454
Mineral [Member] | Potash [Member]
Segment Reporting Information [Line Items]
Sales		29,213		26,513	99,090		89,174
Mineral [Member] | Trio [Member]
Segment Reporting Information [Line Items]
Sales		14,637		10,859	53,881		51,814
Mineral [Member] | Oil Field Solutions [Member]
Segment Reporting Information [Line Items]
Sales		7,310		4,038	19,574		12,918
Mineral [Member] | Operating Segments [Member] | Potash [Member]
Segment Reporting Information [Line Items]
Sales		29,213		26,513	99,090		89,174
Cost of Goods Sold		18,707		14,467	59,024		54,973
Mineral [Member] | Operating Segments [Member] | Trio [Member]
Segment Reporting Information [Line Items]
Sales		14,637		10,859	53,881		51,814
Cost of Goods Sold		9,315		6,917	32,988		37,168
Mineral [Member] | Operating Segments [Member] | Oil Field Solutions [Member]
Segment Reporting Information [Line Items]
Sales		7,310		4,038	19,574		12,918
Cost of Goods Sold		3,841		1,988	8,682		3,313
Mineral [Member] | Corporate/Other [Member]
Segment Reporting Information [Line Items]
Sales		0		0	(1,319)		0
Cost of Goods Sold		$ 0		$ 0	$ (1,319)		$ 0
[1]	Depreciation, depletion, and amortization incurred for potash and Trio® excludes depreciation, depletion and amortization amounts absorbed in or relieved from inventory.

ACQUISTION OF LAND AND OTHER AS

ACQUISTION OF LAND AND OTHER ASSETS (Details) $ in Millions	1 Months Ended
	May 31, 2019USD ($)
Dinwiddie Jal Ranch [Member]
Business Acquisition [Line Items]
Aggregate purchase consideration paid	$ 53
Additional purchase consideration pending resolution of certain issuess	$ 12
Royalty term	20 years
Royalty term percentage	0.1
Capitalized acquisition fees	$ 3.2
Land [Member]
Business Acquisition [Line Items]
Acquisition percentage	50.00%
Additional land purchased	$ 3.1