Hi-Crush (HCR) 10-Q 1 May 18 2018 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2018	Apr. 25, 2018
Document And Entity Information [Abstract]
Entity Registrant Name	Hi-Crush Partners LP
Entity Central Index Key	1,549,848
Trading Symbol	HCLP
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding		88,392,179

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Current assets:
Cash	$ 10,113	$ 5,662
Accounts receivable, net (Note 2)	134,982	139,448
Inventories (Note 4)	34,937	44,272
Prepaid expenses and other current assets	6,081	2,832
Total current assets	186,113	192,214
Property, plant and equipment, net (Note 5)	899,322	899,158
Intangible assets, net	7,995	8,416
Equity method investments (Note 2)	18,641	17,475
Other assets	5,435	5,877
Total assets	1,117,506	1,123,140
Current liabilities:
Accounts payable	43,096	46,794
Accrued and other current liabilities	37,200	29,931
Current portion of deferred revenues (Note 10)	4,399	4,399
Due to sponsor	8,821	12,399
Current portion of long-term debt (Note 6)	2,968	2,957
Total current liabilities	96,484	96,480
Deferred revenues (Note 10)	6,308	7,384
Long-term debt (Note 6)	193,174	194,462
Asset retirement obligations	10,305	10,179
Other liabilities (Note 7)	0	19,000
Total liabilities	306,271	327,505
Commitments and contingencies (Note 7)
Partners’ capital:
General partner interest	0	0
Limited partners interest, 88,392,179 and 89,009,188 units outstanding, respectively	811,235	795,635
Total partners’ capital	811,235	795,635
Total liabilities and partners’ capital	$ 1,117,506	$ 1,123,140

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - shares	Mar. 31, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Limited partners interest, units outstanding	88,392,179	89,009,188

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Statement [Abstract]
Revenues (Note 10)	$ 218,113	$ 83,364
Cost of goods sold (excluding depreciation, depletion and amortization)	141,983	72,083
Depreciation, depletion and amortization	7,799	4,828
Gross profit	68,331	6,453
Operating costs and expenses:
General and administrative expenses	10,940	9,677
Accretion of asset retirement obligations	126	114
Other operating expenses	1,021	0
Income (loss) from operations	56,244	(3,338)
Other income (expense):
Earnings (loss) from equity method investments (Note 2)	1,166	(566)
Interest expense	(3,461)	(2,927)
Net income (loss)	$ 53,949	$ (6,831)
Earnings (loss) per limited partner unit:
Earnings (loss) per limited partner unit - basic (usd per unit)	$ 0.60	$ (0.07)
Earnings (loss) per limited partner unit - diluted (usd per unit)	$ 0.59	$ (0.07)
Weighted average limited partner units outstanding, basic (in units)	88,870,379	73,586,987
Weighted average limited partner units outstanding, diluted (in units)	90,173,318	73,586,987
Distributions declared per limited partner unit (usd per unit)	$ 0.225	$ 0

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Operating activities:
Net income (loss)	$ 53,949	$ (6,831)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and depletion	7,799	4,829
Amortization of intangible assets	421	420
Unit-based compensation to directors and employees	1,801	1,178
Amortization of loan origination costs into interest expense	194	373
Accretion of asset retirement obligations	126	114
Gain on disposal of property, plant and equipment	(24)	0
(Earnings) loss from equity method investments	(1,166)	566
Changes in operating assets and liabilities:
Accounts receivable	4,466	(7,208)
Inventories	7,279	1,866
Prepaid expenses and other current assets	(2,893)	(168)
Other assets	537	332
Accounts payable	(575)	4,758
Accrued and other current liabilities	125	4,553
Deferred revenues	(1,076)	0
Due to sponsor	(3,578)	(1,076)
Net cash provided by operating activities	67,385	3,706
Investing activities:
Capital expenditures for property, plant and equipment	(11,873)	(20,380)
Proceeds from sale of property, plant and equipment	2,867	0
Cash paid for business acquisition	0	(140,000)
Cash paid for asset acquisition	0	(200,067)
Equity method investments	0	(4,168)
Net cash used in investing activities	(9,006)	(364,615)
Financing activities:
Proceeds from equity issuances, net	0	412,667
Repayment of long-term debt	(1,457)	(1,462)
Loan origination costs	(109)	0
Affiliate financing, net	0	456
Payment of contingent consideration	(25,000)	0
Proceeds from participants in unit purchase programs	0	225
Repurchase of common units	(9,426)	0
Payment of accrued distribution equivalent rights	(127)	0
Distributions paid	(17,809)	0
Net cash (used in) provided by financing activities	(53,928)	411,886
Net increase in cash	4,451	50,977
Cash at beginning of period	5,662	4,521
Cash at end of period	10,113	55,498
Non-cash investing and financing activities:
Increase (decrease) in accounts payable and accrued and other current liabilities for additions to property, plant and equipment	(3,123)	13,842
Estimated fair value of contingent consideration liability	0	14,000
Issuance of units for asset acquisition	0	62,242
Issuance of units under unit purchase programs	0	1,576
Increase (decrease) in accrued distribution equivalent rights	271	(94)
Due to sponsor balance converted into non-controlling interest	0	116,417
Cash paid for interest, net of capitalized interest	$ 3,266	$ 2,554

Condensed Consolidated Stateme6

Condensed Consolidated Statement of Partners' Capital - 3 months ended Mar. 31, 2018 - USD ($) $ in Thousands	Total	General Partner Capital	Limited Partner Capital
Partners' Capital, beginning balance at Dec. 31, 2017	$ 795,635	$ 0	$ 795,635
Increase (Decrease) in Partners' Capital
Issuance of common units to directors and employees	474		474
Repurchase of common units	(9,426)		(9,426)
Unit-based compensation expense	1,682		1,682
Distributions, including distribution equivalent rights	(18,092)	0	(18,092)
Forfeiture of distribution equivalent rights	13		13
Payment in excess of contingent consideration liability	(13,000)		(13,000)
Net income (loss)	53,949	0	53,949
Partners' Capital, ending balance at Mar. 31, 2018	$ 811,235	$ 0	$ 811,235

Basis of Presentation and Use o

Basis of Presentation and Use of Estimates	3 Months Ended
	Mar. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Use of Estimates	Basis of Presentation and Use of Estimates The accompanying unaudited interim Condensed Consolidated Financial Statements ("interim statements") of Hi-Crush Partners LP (together with its subsidiaries, the "Partnership", "we", "us" or "our") have been prepared in accordance with accounting principles generally accepted in the United States ("GAAP") for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X issued by the U.S. Securities and Exchange Commission ("SEC"). Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all normal and recurring adjustments and disclosures necessary for a fair statement are reflected in the interim periods presented. The results reported in these interim statements are not necessarily indicative of the results that may be reported for the entire year. These interim statements should be read in conjunction with the Partnership’s Consolidated Financial Statements for the year ended December 31, 2017 , which are included in the Partnership’s Annual Report on Form 10-K filed with the SEC on February 20, 2018 . The year-end balance sheet data was derived from the audited financial statements. The preparation of the financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amount of assets and liabilities and disclosure of contingent liabilities at the date of the financial statements and the reported amount of revenues and expenses during the reporting period. Actual results could differ from those estimates. These financial statements have been prepared assuming the Partnership will continue to operate as a going concern. On a quarterly basis, the Partnership assesses whether conditions have emerged which may cast substantial doubt about the Partnership's ability to continue as a going concern for the next twelve months following the issuance of the interim statements. The Partnership is a Delaware limited partnership formed on May 8, 2012 to acquire selected sand reserves and related processing and transportation facilities of Hi-Crush Proppants LLC. The Partnership is a premier provider of proppant and logistics solutions to the North American energy industry. In connection with its formation, the Partnership issued a non-economic general partner interest to Hi-Crush GP LLC, our general partner (the "general partner" or "Hi-Crush GP"), and a 100% limited partner interest to Hi-Crush Proppants LLC (the "sponsor"), its organizational limited partner. On February 23, 2017, the Partnership entered into a contribution agreement with our sponsor to acquire all of the outstanding membership interests in Hi-Crush Whitehall LLC ("Whitehall"), the entity that owned our sponsor’s Whitehall facility, the remaining 2.0% equity interest in Hi-Crush Augusta LLC ("Augusta"), and all of the outstanding membership interests in PDQ Properties LLC (together, the "Other Assets"), for $140,000 in cash and up to $65,000 of contingent consideration over a two -year period (the "Whitehall Contribution"). The Partnership completed this acquisition on March 15, 2017. The Whitehall Contribution was accounted for as a transaction between entities under common control whereby the net assets of Whitehall and Other Assets were recorded at their historical cost. Therefore, the Partnership's historical financial information was recast to combine Whitehall and Other Assets with the Partnership as if the combinations had been in effect since inception of the common control. Refer to Note 3 - Acquisitions

Significant Accounting Policies

Significant Accounting Policies	3 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
Significant Accounting Policies	Significant Accounting Policies In addition to the significant accounting policies listed below, a comprehensive discussion of our critical accounting policies and estimates is included in our Annual Report on Form 10-K filed with the SEC on February 20, 2018 . Accounts Receivable Trade receivables relate to sales of frac sand and related services for which credit is extended based on the customer’s credit history and are recorded at the invoiced amount and do not bear interest. The Partnership regularly reviews the collectability of accounts receivable. When it is probable that all or part of an outstanding balance will not be collected, the Partnership establishes or adjusts an allowance as necessary generally using the specific identification method. Account balances are charged against the allowance after all means of collection have been exhausted and potential recovery is considered remote. As of March 31, 2018 and December 31, 2017 , the Partnership maintained an allowance for doubtful accounts of $1,060 . Revenues recognized in advance of invoice issuance create assets referred to as "unbilled receivables." Any portion of our unbilled receivables for which our right to consideration is conditional on a factor other than the passage of time is considered a contract asset. These assets are presented on a combined basis with accounts receivable and are converted to trade receivables once billed. Deferred Charges Certain direct costs incurred in connection with debt financing have been capitalized and are being amortized using the straight-line method, which approximates the effective interest method, over the life of the debt. Amortization expense is included in interest expense. Equity Method Investments The Partnership accounts for investments, which it does not control but has the ability to exercise significant influence, using the equity method of accounting. Under this method, the investment is carried originally at cost, increased by any allocated share of the Partnership's net income and contributions made, and decreased by any allocated share of the Partnership's net losses and distributions received. The Partnership's allocated share of income and losses are based on the rights and priorities outlined in the equity investment agreement. On September 8, 2016, the Partnership entered into an agreement to become a member of Proppant Express Investments, LLC ("PropX"), which was established to develop critical last mile logistics equipment for the proppant industry. PropX is responsible for manufacturing containers and conveyor systems that allow for transportation of frac sand from in-basin terminals to the wellsite. As of March 31, 2018 , the Partnership's carrying value in PropX was $18,641 , which is accounted for as an equity method investment as the Partnership has a non-controlling interest in PropX, but has the ability to exercise significant influence. During the three months ended March 31, 2018 , the Partnership made no capital contributions to PropX and recognized earnings of $1,166 from its proportionate share of PropX's operating results during the three month period. During the three months ended March 31, 2017 , the Partnership made capital contributions of $4,168 into PropX and incurred a loss of $566 from its proportionate share of PropX's operating results during the three month period. Contingent Consideration Accounting standards require that contingent consideration be recorded at fair value at the date of acquisition and revalued during subsequent reporting dates under the acquisition method of accounting. In connection with its recent acquisitions of Hi-Crush Blair LLC ("Blair") and Whitehall and Other Assets, the Partnership entered into certain contingent consideration arrangements to pay up to $10,000 and $65,000 , respectively, to its sponsor. The original estimated fair value of the contingent consideration liability recorded at the date of acquisitions was $5,000 and $14,000 for Blair and Whitehall, respectively. During the first quarter of 2018, the Partnership's paid $5,000 and $20,000 of contingent consideration related to the Blair acquisition and Whitehall Contribution, respectively, to our sponsor with respect to the 2017 measurement period, which is reflected as financing activity in our Condensed Consolidated Statements of Cash Flows. As such transactions are between entities under common control, any differences between the original estimated fair value, and the actual resulting payments in the future are reflected as an equity adjustment to the deemed distributions associated with the acquisitions. The remaining balances of the original estimated fair value of contingent consideration is $3,000 and $4,000 for Blair and Whitehall, respectively, as reflected in other current liabilities on our Condensed Consolidated Balance Sheet as of March 31, 2018 . The excess amount of contingent consideration paid over the originally estimated fair value was recorded as an equity adjustment of $13,000 and is reflected in our Condensed Consolidated Statement of Partners' Capital. Refer to Note 7 - Commitments and Contingencies for additional disclosure regarding contingent consideration. Revenue Recognition On January 1, 2018, we adopted the new accounting standard ASU 2014-09 (Topic 606), Revenue from Contracts with Customers and all the related amendments to all contracts using the full retrospective method. The adoption of ASU 2014-09 had no impact on our revenue recognition practices or impact to our Consolidated Financial Statements but required additional disclosures. Refer to Note 10 - Revenues for additional disclosure regarding revenues. We generate frac sand revenues from the sale of raw frac sand that our customers purchase for use in the oil and gas industry. A substantial portion of our frac sand is sold to customers with whom we have long-term supply agreements, the current terms of which expire between 2018 and 2024 . The agreements define, among other commitments, the volume of product that the Partnership must provide and the volume that the customer must purchase by the end of the defined periods. Pricing structures under our agreements are in many cases subject to certain contractual adjustments and consist of a combination of market-based pricing and fixed pricing. These arrangements may undergo negotiations regarding pricing and volume requirements, which may occur in volatile market conditions. We also sell sand through individual purchase orders executed on the spot market, at prices and other terms determined by the existing market conditions as well as the specific requirements of the customer. We typically invoice our customers as the product is delivered and title transfers to the customer, with standard collection terms of net 30 days. Frac sand sales revenues are recognized at the point in time following the transfer of control to the customer when legal title passes, which may occur at the production facility, rail origin, terminal or wellsite. Revenue recognition is driven by the execution and delivery of frac sand by the Partnership to the customer, which is initiated by the customer placing an order for frac sand, the Partnership accepting and processing the order, and the physical delivery of sand at the location specified by the customer. At that point in time, delivery has occurred, evidence of a contractual arrangement exists and collectability is reasonably assured. Revenue from make-whole provisions in our customer contracts is recognized as other revenue at the end of the defined period when collectability is certain. Customer prepayments in excess of customer obligations remaining on account upon the expiration or termination of a contract are recognized as other operating income during the period in which the expiration or termination occurs. We generate other revenues primarily through the performance of our PropStream TM logistics service, which includes transportation, equipment rental, and labor services and through activities performed at our in-basin terminals, including transloading sand for counterparties, and lease of storage space. Transportation services typically consist of transporting proppant from storage facilities to the wellsite and are contracted through work orders executed under established pricing agreements. The amount invoiced reflects the transportation services rendered. Equipment rental services provide customers with use of our PropStream fleet equipment for either contractual periods defined through formal agreements or for work orders under established pricing agreements. The amounts invoiced reflect either the contractual monthly minimum, or the length of time the equipment was utilized in the billing period. Labor services provide customers with supervisory, logistics, or field personnel through formal agreements or work orders executed under established pricing agreements. The amounts invoiced reflect either the contractual monthly minimum, or the amount of time our labor services were utilized in the billing period. We typically invoice our customers as product is delivered and services are rendered, with standard collection terms of net 30 days. We recognize revenue for PropStream logistics services and other revenues as title of the product transfers and the services have been rendered and completed. At that point in time, delivery of service has occurred, evidence of a contractual arrangement exists and collectability is reasonably assured. Deferred Revenues We occasionally receive prepayments from customers for future deliveries of frac sand. These prepayments represent consideration that is unconditional for which we have yet to transfer the sand. Amounts received from customers in advance of sand deliveries are recorded as contract liabilities referred to as deferred revenues and recognized as revenue upon delivery of the sand. Fair Value of Financial Instruments The amounts reported in the balance sheet as current assets or liabilities, including cash, accounts receivable, accounts payable, accrued and other current liabilities approximate fair value due to the short-term maturities of these instruments. The fair value of the senior secured term loan approximated $198,515 as of March 31, 2018 , based on the market price quoted from external sources, compared with a carrying value of $199,500 . If the senior secured term loan was measured at fair value in the financial statements, it would be classified as Level 2 in the fair value hierarchy. Net Income per Limited Partner Unit We have identified the sponsor’s incentive distribution rights as participating securities and compute income per unit using the two-class method under which any excess of distributions declared over net income or loss shall be allocated to the partners based on their respective sharing of income specified in the partnership agreement. Net income or loss per unit applicable to limited partners is computed by dividing limited partners’ interest in net income or loss, after deducting any sponsor incentive distributions, by the weighted-average number of outstanding limited partner units. As described in Note 1 , the Partnership's historical financial information has been recast to combine Whitehall and Other Assets for all periods presented. The amounts of incremental income or losses recast to periods prior to the Whitehall Contribution are excluded from the calculation of net income per limited partner unit. Income Taxes The Partnership is a pass-through entity and is not considered a taxable entity for federal tax purposes. Therefore, there is not a provision for income taxes in the accompanying Condensed Consolidated Financial Statements. The Partnership’s net income or loss is allocated to its partners in accordance with the partnership agreement. The partners are taxed individually on their share of the Partnership’s earnings. At March 31, 2018 and December 31, 2017 , the Partnership did not have any liabilities for uncertain tax positions or gross unrecognized tax benefits. Recent Accounting Pronouncements In February 2016, the FASB issued Accounting Standards Update No. 2016-02 ("ASU 2016-02"), Leases (Topic 842). This update will impact all leases with durations greater than twelve months. In general, such arrangements will be recognized as assets and liabilities on the balance sheet of the lessee. Under the new accounting guidance a right-of-use asset and lease obligation will be recorded for all leases, whether operating or financing, while the statement of operations will reflect lease expense for operating leases and amortization/interest expense for financing leases. The balance sheet amount recorded for existing leases at the date of adoption will be calculated using the applicable incremental borrowing rate at the date of adoption. The new accounting guidance is effective for the Partnership beginning in the first quarter of 2019 and should be applied retrospectively. The FASB has also issued the following standards which clarify ASU 2016-02 and have the same effective date as the original standard: ASU 2017-13, Revenue Recognition (Topic 605), Revenue from Contracts with Customers (Topic 606), Leases (Topic 840), and Leases (Topic 842) and ASU 2018-01, Leases (Topic 842): Land Easement Practical Expedient for Transition to Topic 842

Acquisitions

Acquisitions	3 Months Ended
	Mar. 31, 2018
Business Combinations [Abstract]
Acquisitions	Acquisitions Asset Acquisition of Permian Basin Sand Reserves On March 3, 2017, the Partnership completed an acquisition of Permian Basin Sand Company, LLC ("Permian Basin Sand") for total consideration of $200,000 in cash and 3,438,789 newly issued common units to the sellers, valued at $62,242 based on the closing price as of March 3, 2017. Permian Basin Sand owns a 1,226 -acre frac sand reserve strategically positioned in the Permian Basin, located within 75 miles of significant Delaware and Midland Basin activity. The acquisition of Permian Basin Sand was accounted for as an asset acquisition as the acquired assets did not constitute a business. The total purchase consideration of $263,072 is reflected as property, plant and equipment on the Condensed Consolidated Balance Sheet. The following table summarizes the total purchase consideration: Cash paid to sellers $ 200,000 Issuance of common units to sellers 62,242 Transactions costs associated with the acquisition 830 Cost of Permian Basin Sand acquisition $ 263,072 Acquisition of Hi-Crush Whitehall LLC and Other Assets On February 23, 2017, the Partnership entered into a contribution agreement with our sponsor to acquire all of the outstanding membership interests in Whitehall and Other Assets, for $140,000 in cash and up to $65,000 of contingent consideration over a two -year period. The Partnership completed this acquisition on March 15, 2017. In connection with this acquisition, the Partnership incurred $588 of acquisition related costs during the year ended December 31, 2017, included in general and administrative expenses. The contingent consideration is based on the Partnership's adjusted earnings before interest, taxes, depreciation and amortization ("Adjusted EBITDA") exceeding certain thresholds for each of the fiscal years ending December 31, 2017 and 2018. If those annual thresholds are met, the Partnership will pay an additional $20,000 for each threshold met or exceeded. During the first quarter of 2018, the Partnership paid $20,000 of contingent consideration with respect to the 2017 measurement period. If the Partnership exceeds a total threshold for the cumulative two -year period, then it will pay an additional $25,000 , for an undiscounted total of up to $65,000 to be paid in cash or common units at the Partnership's discretion. As of March 15, 2017, the estimated fair value of the contingent consideration liability based on available information was $14,000 . Refer to Note 7 - Commitments and Contingencies for additional disclosure regarding the remaining contingent consideration obligations. As a result of this transaction, the Partnership's historical financial information has been recast to combine the Consolidated Statements of Operations and the Consolidated Balance Sheets of the Partnership with those of Whitehall and Other Assets as if the combination had been in effect since inception of common control on August 16, 2012. Any material transactions between the Partnership, Whitehall and Other Assets have been eliminated. The balance of non-controlling interest as of December 31, 2016 includes the sponsor's interest in Whitehall and Other Assets prior to the combination. Except for the combination of the Consolidated Statements of Operations and the respective allocation of recast net income (loss), capital transactions between the sponsor and Whitehall and Other Assets prior to March 15, 2017 have not been allocated on a recast basis to the Partnership’s unitholders. Such transactions were presented within the non-controlling interest column in the Consolidated Statement of Partners' Capital as the Partnership and its unitholders would not have participated in these transactions. The following table summarizes the carrying value of the Whitehall and Other Assets net assets as of March 15, 2017, and the allocation of the purchase price: Net assets of Hi-Crush Whitehall LLC and Other Assets as of March 15, 2017: Cash $ 198 Inventories 4,941 Prepaid expenses and other current assets 3 Property, plant and equipment 124,811 Accounts payable (938 ) Accrued liabilities and other current liabilities (386 ) Due to Hi-Crush Partners LP (2,615 ) Asset retirement obligation (1,716 ) Total carrying value of Whitehall and Other Assets net assets $ 124,298 Allocation of purchase price Carrying value of sponsor's non-controlling interest prior to Whitehall Contribution $ 119,108 Excess purchase price over the acquired interest (a) 34,892 Cost of Whitehall and Other Assets acquisition $ 154,000 (a) The deemed distribution attributable to the purchase price was allocated to the common unitholders and excludes the $14,000 estimated fair value of contingent consideration payable in the future. During the first quarter of 2018, the Partnership paid $20,000 of contingent consideration related to the Whitehall Contribution. Recast Financial Results The following table presents, on a supplemental basis, our recast revenues, net loss, net loss attributable to Hi-Crush Partners LP and net loss per limited partner unit giving effect to the Whitehall Contribution, as reconciled to the revenues, net loss, net loss attributable to Hi-Crush Partners LP and net loss per limited partner unit of the Partnership. Three Months Ended March 31, 2017 Partnership Historical Whitehall and Other Assets through March 15, 2017 Eliminations Partnership Recast (Supplemental) Revenues $ 83,364 $ — $ — $ 83,364 Net loss $ (5,386 ) $ (1,366 ) $ (79 ) $ (6,831 ) Net loss attributable to Hi-Crush Partners LP $ (5,360 ) $ (1,392 ) $ (79 ) $ (6,831 ) Net loss per limited partner unit - basic $ (0.07 ) $ (0.09 )

Inventories

Inventories	3 Months Ended
	Mar. 31, 2018
Inventory Disclosure [Abstract]
Inventories	Inventories Inventories consisted of the following: March 31, 2018 December 31, 2017 Raw material $ 767 $ 498 Work-in-process 7,224 18,739 Finished goods 24,608 22,892 Spare parts 2,338 2,143 Inventories $ 34,937 $ 44,272

Property, Plant and Equipment

Property, Plant and Equipment	3 Months Ended
	Mar. 31, 2018
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	Property, Plant and Equipment Property, plant and equipment consisted of the following: March 31, 2018 December 31, 2017 Buildings $ 21,579 $ 21,532 Mining property and mine development 383,644 381,653 Plant and equipment 391,019 389,197 Rail and rail equipment 55,783 55,783 Transload facilities and equipment 122,041 121,522 Construction-in-progress 15,954 14,454 Property, plant and equipment 990,020 984,141 Less: Accumulated depreciation and depletion (90,698 ) (84,983 ) Property, plant and equipment, net $ 899,322 $ 899,158 Depreciation and depletion expense was $7,799 and $4,829 during the three months ended March 31, 2018 and 2017 , respectively. The Partnership recognized a gain on the disposal of fixed assets of $24 during the three months ended March 31, 2018 , which is included in general and administrative expenses on our Condensed Consolidated Statements of Operations. The Partnership did not dispose of any fixed assets during the three months ended March 31, 2017

Long-Term Debt

Long-Term Debt	3 Months Ended
	Mar. 31, 2018
Debt Disclosure [Abstract]
Long-Term Debt	Long-Term Debt Long-term debt consisted of the following: March 31, 2018 December 31, 2017 Revolving Credit Agreement $ — $ — Term Loan Credit Facility 199,500 200,000 Less: Unamortized original issue discount (1,922 ) (1,992 ) Less: Unamortized debt issuance costs (3,533 ) (3,643 ) Other notes payable 2,097 3,054 Total debt 196,142 197,419 Less: current portion of long-term debt (2,968 ) (2,957 ) Long-term debt $ 193,174 $ 194,462 Revolving Credit Agreement On December 22, 2017, the Partnership entered into a second amended and restated credit agreement (the "Revolving Credit Agreement"), which matures on December 22, 2022 , replacing its prior revolving credit agreement. As of March 31, 2018 , the Revolving Credit Agreement, as amended, is a senior secured revolving credit facility that permits aggregate borrowings of up to $125,000 , including a $30,000 sublimit for letters of credit and a $10,000 sublimit for swing line loans. As of March 31, 2018 , we had $103,847 of undrawn borrowing capacity ( $125,000 , net of $21,153 letter of credit commitments) and no indebtedness under our Revolving Credit Agreement. Borrowings under the Revolving Credit Agreement bear interest at a rate equal to, at the Partnership's option, either (1) a base rate plus an applicable margin ranging between 1.50% per annum and 2.25% per annum, based upon the Partnership's leverage ratio, or (2) a Eurodollar rate plus an applicable margin ranging between 2.50% per annum and 3.25% per annum, based upon the Partnership's leverage ratio. The Revolving Credit Agreement contains customary representations and warranties and customary affirmative and negative covenants, including limits or restrictions on the Partnership’s ability to incur liens, incur indebtedness, make certain restricted payments, merge or consolidate, and dispose of assets. The Revolving Credit Agreement requires compliance with customary financial covenants, which are a maximum leverage ratio of 3.25 x, a minimum interest coverage ratio of 2.5 x and an asset coverage ratio of 1.5 x. The Revolving Credit Agreement generally permits repurchases of common units. As of March 31, 2018 , we are in compliance with the covenants contained in the Revolving Credit Agreement. Our ability to comply with such covenants in the future, and access our undrawn borrowing capacity under our Revolving Credit Agreement, is dependent primarily on achieving certain levels of EBITDA, as defined. The Revolving Credit Agreement provides for an "equity cure" that can be applied to EBITDA covenant ratios. Refer to Note 8 - Equity for information regarding our equity distribution program. The Revolving Credit Agreement contains customary events of default (some of which are subject to applicable grace or cure periods), including among other things, non-payment defaults, covenant defaults, cross-defaults to other material indebtedness, bankruptcy and insolvency defaults, and material judgment defaults. Such events of default could entitle the lenders to cause any or all of the Partnership’s indebtedness under the Revolving Credit Agreement to become immediately due and payable. If such a default were to occur, and resulted in a cross default of the Term Loan Credit Agreement, as described below, all of our outstanding debt obligations could be accelerated which would have a material adverse impact on the Partnership. The Revolving Credit Agreement is secured by substantially all assets of the Partnership. In addition, the Partnership's subsidiaries have guaranteed the Partnership's obligations under the Revolving Credit Agreement and have granted to the revolving lenders security interests in substantially all of their respective assets. Term Loan Credit Facility On December 22, 2017, the Partnership entered into an amended and restated credit agreement (the "Term Loan Credit Agreement") providing for a senior secured term loan credit facility (the "Term Loan Credit Facility") that permits aggregate borrowings of up to $200,000 , which was fully drawn on December 22, 2017, replacing its prior term loan credit agreement. The Term Loan Credit Agreement permits the Partnership, at its option, to add one or more incremental term loan facilities in an aggregate amount not to exceed $100,000 . Any incremental term loan facility would be on terms to be agreed among the Partnership, the administrative agent and the lenders who agree to participate in the incremental facility. The maturity date of the Term Loan Credit Facility is December 22, 2024 . The Term Loan Credit Agreement is secured by substantially all assets of the Partnership. In addition, the Partnership’s subsidiaries have guaranteed the Partnership’s obligations under the Term Loan Credit Agreement and have granted to the lenders security interests in substantially all of their respective assets. Borrowings under the Term Loan Credit Agreement bear interest at a rate equal to, at the Partnership’s option, either (1) a base rate plus an applicable margin of 2.75% per annum or (2) a Eurodollar rate plus an applicable margin of 3.75% per annum, subject to a LIBOR floor of 1.00% . Both base rate loans and Eurodollar loans are subject to a 0.25% rate increase during any period of time in which the Partnership does not have a public company family rating of B2 or better from Moody's Investors Service Inc. ("Moody's"). As of April 25, 2018 , the credit rating of the Partnership’s senior secured term loan credit facility was B3 from Moody’s and B- from Standard and Poor’s. The Term Loan Credit Agreement contains customary representations and warranties and customary affirmative and negative covenants, including limits or restrictions on the Partnership’s ability to incur liens, incur indebtedness, make certain restricted payments, merge or consolidate and dispose of assets. In addition, it contains customary events of default that entitle the lenders to cause any or all of the Partnership’s indebtedness under the Term Loan Credit Agreement to become immediately due and payable. The events of default (some of which are subject to applicable grace or cure periods), include, among other things, non-payment defaults, covenant defaults, cross-defaults to other material indebtedness, bankruptcy and insolvency defaults and material judgment defaults. As of March 31, 2018 , we were in compliance with the terms of the agreement. As of March 31, 2018 , we had $194,045 indebtedness ( $199,500 , net of $1,922 of discounts and $3,533 of debt issuance costs) under our Term Loan Credit Facility, which carried an interest rate of 6.31% . Other Notes Payable On October 24, 2014, the Partnership entered into a purchase and sales agreement to acquire land and underlying frac sand deposits. During the years ended December 31, 2016, 2015 and 2014, the Partnership paid cash consideration of $2,500 , and issued a three -year promissory note in the amount of $3,676 , respectively, in connection with this agreement. The promissory notes accrue interest at rates equal to the applicable short-term federal rates. All principal and accrued interest is due and payable at the end of the respective three-year promissory note terms in December 2019, December 2018 and October 2017. However, the promissory notes are prepaid on a quarterly basis during the three-year terms as sand is extracted, delivered, sold and paid for from the properties. The Partnership made prepayments of $957 and $962 during the three months ended March 31, 2018 and 2017 , respectively, based on the accumulated volume of sand extracted, delivered, sold and paid for. In April 2018, the Partnership made a prepayment of $968 based on the volume of sand extracted, delivered, sold and paid for through the first quarter of 2018 . As of March 31, 2018 , the Partnership had repaid in full the promissory notes due in October 2017 and December 2018 and had $2,097 outstanding on its remaining promissory note, which carried an interest rate of 0.74%

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Customer Contracts The Partnership enters into sales contracts with customers. These contracts establish minimum annual sand volumes that the Partnership is required to make available to such customers under initial terms ranging from one to seven years. Through March 31, 2018 , no payments for non-delivery of minimum annual sand volumes have been made by the Partnership to customers under these contracts. Supplier Contracts D & I Silica, LLC has entered into a long-term supply agreement with a supplier, which includes a requirement to purchase certain volumes and grades of sands at specified prices. The quantities set forth in such agreement are not in excess of our current requirements. Royalty Agreements The Partnership has entered into royalty agreements under which it is committed to pay royalties on sand sold from its production facilities for which the Partnership has received payment by the customer. Royalty expense is recorded as the sand is sold and is included in costs of goods sold. Royalty expense was $3,540 and $2,636 for the three months ended March 31, 2018 and 2017 , respectively. Certain acreage is subject to a minimum annual royalty payment. If not paid within 30 days after the annual period, the original landowner has the right to purchase the property for one dollar, subject to certain terms. If we have not made the minimum required royalty payments, we may satisfy our obligation by making a lump-sum cash make-whole payment. Accordingly, we believe there is no material risk that we will be required to sell back the subject property pursuant to this agreement. Property Value Guarantees The Partnership entered into mining agreements and land use agreements with the Wisconsin municipalities of Bridge Creek, Lincoln, Springfield and Preston that contain property value guarantees ("PVG") for certain property owners in proximity to each mine. The respective PVGs establish a process whereby we guaranty fair market value to the owners of residential property specifically identified within the body of the PVG document. According to the terms of the PVGs, the property owner must notify us in the event they wish to sell the subject residence and additional acreage in certain instances. Upon such notice, the PVGs establish a process by which an appraisal is conducted and the subject property is appraised to establish fair market value and is listed with a real estate broker. In the event the property is sold within 180 days of listing, we agree to pay the owner any shortfall between the sales price and the established fair market value. In the event the property is not sold within the 180 days time frame, we are obligated to purchase the property for fair market value. As of March 31, 2018 , we have not accrued a liability related to the PVGs because it is not possible to estimate how many of the owners will elect to avail themselves of the provisions of the PVGs and it cannot be determined if shortfalls will exist in the event of a sale nor can the value of the subject property be ascertained until appraised. As of March 31, 2018 , the Partnership has paid $2,188 under these guarantees since inception. Lease Obligations The Partnership has long-term leases for railcars, equipment and certain of its terminals. The Partnership also has long-term operating leases with PropX for use of equipment manufactured and owned by PropX. We have entered into service agreements with certain transload service providers which requires us to purchase minimum amounts of services over specific periods of time at specific locations. Our failure to purchase the minimum level of services would require us to pay shortfall fees. As of March 31, 2018 , future minimum operating lease payments and minimum purchase commitments are as follows: Fiscal Year Operating Leases Minimum Purchase Commitments 2018 (remaining months) $ 23,137 $ 4,185 2019 33,711 2,616 2020 31,574 2,296 2021 24,812 2,296 2022 18,036 2,296 Thereafter 18,011 1,871 $ 149,281 $ 15,560 In addition, the Partnership has placed orders for additional leased railcars. Such long-term operating leases commence upon the future delivery of 700 railcars, which are scheduled to be delivered beginning in the second quarter of 2018. Contingent Consideration As described in Note 3 - Acquisitions , the Partnership may pay the sponsor up to $65,000 of contingent consideration related to the Whitehall Contribution. Additionally, the Partnership acquired all of the outstanding membership interests in Blair (the "Blair Contribution") from our sponsor in 2016. The Partnership may pay the sponsor up to $10,000 of contingent consideration over a two-year period in connection with the Blair Contribution. The payments of contingent consideration for the Whitehall Contribution and Blair Contribution are based on achievement of certain levels of Adjusted EBITDA in 2017 and 2018. Achievement of these threshold levels of Adjusted EBITDA, as defined in each of the contribution agreements, will be dependent on the quantity of volumes sold and related prices, which are forecasted at levels above current market prices. The Partnership’s ability to meet such thresholds will be affected by events and circumstances beyond its control. If market or other economic conditions remain the same or deteriorate, the thresholds may not be met. If the thresholds are not attained during each of the contingency periods, no payment will be owed to the sponsor. For the year ended December 31, 2017, the Partnership's Adjusted EBITDA exceeded the threshold levels, triggering a payment of $5,000 and $20,000 related to the Blair Contribution and Whitehall Contribution, respectively, in March 2018 to our sponsor. A 10% increase or decrease in the achievement of Adjusted EBITDA versus current forecasts for the measurement periods could result in a range of potential payments under these arrangements which could differ from the current estimated fair value of the liabilities based on our current forecasts. The following table outlines the remaining original fair value reflected as the carrying value in the financial statements, the range of minimum and maximum undiscounted payments, and a sensitivity calculation of the current estimated fair value and sensitivities based on achieving Adjusted EBITDA levels 10% above or below the Partnership’s current forecasted results as of March 31, 2018 . Based on the significant estimates and assumptions included in the analysis, actual results could differ from these estimates. Undiscounted Payments Sensitivity Analysis Transaction Carrying Value of Liability Minimum Maximum Current Estimated Fair Value -10% Adjusted EBITDA +10% Adjusted EBITDA Blair Contribution $ 3,000 $ — $ 5,000 $ 2,282 $ 2,282 $ 2,282 Whitehall Contribution $ 4,000 $ — $ 45,000 $ 11,409 $ — $ 11,409 Litigation

Equity

Equity	3 Months Ended
	Mar. 31, 2018
Equity [Abstract]
Equity	Equity During the second quarter of 2017, our sponsor distributed its 20,693,643 common units in the Partnership to its members. As of March 31, 2018 , our management team, together with our general partner's board of directors have a 11% direct ownership interest in our limited partnership units. In addition, our sponsor is the owner of our general partner. During the three months ended March 31, 2017, the Partnership completed a public offering for a total of 23,575,000 common units, representing limited partnership interests in the Partnership for aggregate net proceeds of approximately $412,667 . The net proceeds from these offerings were used to fund the cash portion of the Whitehall Contribution, the cash portion of the Permian Basin Sand asset acquisition and for general partnership purposes. In addition, the Partnership issued 3,438,789 common units as additional consideration for the Permian Basin Sand asset acquisition on March 3, 2017. Unit Buyback Program On October 17, 2017, the Partnership announced that the board of directors of our general partner approved a unit buyback program of up to $100,000 . The repurchase program does not obligate the Partnership to repurchase any specific dollar amount or number of units and may be suspended, modified or discontinued by the board of directors at any time, in its sole discretion and without notice. The following table presents information with respect to repurchases of common units made by the Partnership during the periods presented, which were retired upon repurchase: Three Months Ended March 31, 2018 2017 Number of units purchased 753,090 — Average price paid per unit including commission $ 12.52 $ — Total cost $ 9,426 $ — As of March 31, 2018 , the Partnership has repurchased a total of 2,783,253 common units for a total cost of $29,426 , with $70,574 remaining under its approved unit buyback program. Equity Distribution Agreement On January 4, 2017, the Partnership entered into an equity distribution program with certain financial institutions (each, a "Manager") under which we may sell, from time to time, through or to the Managers, common units representing limited partner interests in the Partnership up to an aggregate gross sales price of $50,000 . The Partnership has not issued any common units under this equity distribution program through the date of this filing. Incentive Distribution Rights Incentive distribution rights represent the right to receive increasing percentages (ranging from 15.0% to 50.0% ) of quarterly distributions from operating surplus after minimum quarterly distribution and target distribution levels exceed $0.54625 per unit per quarter. Our sponsor currently holds the incentive distribution rights, but it may transfer these rights at any time. Allocations of Net Income Our partnership agreement contains provisions for the allocation of net income and loss to the unitholders and our general partner. For purposes of maintaining partner capital accounts, the partnership agreement specifies that items of income and loss shall be allocated among the partners in accordance with their respective percentage ownership interest. Normal allocations according to percentage interests are made after giving effect, if any, to priority income allocations in an amount equal to incentive cash distributions allocated 100% to our sponsor. During the three months ended March 31, 2018 and 2017 , no income was allocated to our holders of incentive distribution rights. Distributions Our partnership agreement sets forth the calculation to be used to determine the amount of cash distributions that our limited partner unitholders and our holders of incentive distribution rights will receive. Our most recent distributions have been as follows: Declaration Date Amount Declared Per Unit Record Date Payment Date Payment to Limited Partner Units Payment to Holders of Incentive Distribution Rights October 16, 2017 $ 0.1500 October 31, 2017 November 14, 2017 $ 13,656 $ — January 17, 2018 $ 0.2000 February 1, 2018 February 13, 2018 $ 17,809 $ — April 18, 2018 $ 0.2250 May 1, 2018 May 15, 2018 $ 19,888 $ — Net Income per Limited Partner Unit The following table outlines our basic and diluted, weighted average limited partner units outstanding during the relevant periods: Three Months Ended March 31, 2018 2017 Basic common units outstanding 88,870,379 73,586,987 Potentially dilutive common units 1,302,939 — Diluted common units outstanding 90,173,318 73,586,987 For purposes of calculating the Partnership’s earnings per unit under the two-class method, common units are treated as participating preferred units. Incentive distribution rights are treated as participating securities. Diluted earnings per unit excludes any dilutive awards granted (see Note 9 - Unit-Based Compensation ) if their effect is anti-dilutive. Diluted earnings per unit for the three months ended March 31, 2018 , includes the dilutive effect of all 1,302,939 phantom units granted and outstanding at the assumed number of units which would have vested if the performance period had ended on March 31, 2018 . During the three months ended March 31, 2017 , the Partnership incurred a net loss and, as a result, all 566,539 phantom units of potentially dilutive awards granted and outstanding were excluded from the diluted earnings per unit calculation. Distributions made in future periods based on the current period calculation of cash available for distribution are allocated to each class of equity that will receive such distributions. Each period, the Partnership determines the amount of cash available for distributions in accordance with the partnership agreement. The amount to be distributed to limited partner unitholders and incentive distribution rights holders is subject to the distribution waterfall in the partnership agreement. Net earnings or loss for the period are allocated to each class of partnership interest based on the distributions to be made. As described in Note 1 , the Partnership's historical financial information has been recast to combine Whitehall and Other Assets for all periods presented. The amounts of incremental income or losses recast to periods prior to the Whitehall Contribution are excluded from the calculation of net income per limited partner unit. The following tables provide a reconciliation of net income (loss) and the assumed allocation of net income (loss) under the two-class method for purposes of computing net income (loss) per limited partner unit for the three months ended March 31, 2018 and 2017 : Three Months Ended March 31, 2018 General Partner and IDRs Limited Partner Units Total Declared distribution $ — $ 19,888 $ 19,888 Assumed allocation of earnings in excess of distributions 854 33,207 34,061 Assumed allocation of net income $ 854 $ 53,095 $ 53,949 Earnings per limited partner unit - basic $ 0.60 Earnings per limited partner unit - diluted $ 0.59 Three Months Ended March 31, 2017 General Partner and IDRs Limited Partner Units Total Declared distribution $ — $ — $ — Assumed allocation of distributions in excess of loss — (6,831 ) (6,831 ) Add back recast losses attributable to Whitehall and Other Assets through March 15, 2017 — 1,471 1,471 Assumed allocation of net loss $ — $ (5,360 ) $ (5,360 ) Loss per limited partner unit - basic $ (0.07 ) Loss per limited partner unit - diluted $ (0.07 )

Unit-Based Compensation

Unit-Based Compensation	3 Months Ended
	Mar. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Unit-Based Compensation	Unit-Based Compensation Long-Term Incentive Plan On August 21, 2012, Hi-Crush GP adopted the Hi-Crush Partners LP Long-Term Incentive Plan, which was superseded on September 21, 2016 by the First Amended and Restated Long-Term Incentive Plan (the "Plan") for employees, consultants and directors of Hi-Crush GP and those of its affiliates, including our sponsor, who perform services for the Partnership. The Plan consists of restricted units, unit options, phantom units, unit payments, unit appreciation rights, other equity-based awards, distribution equivalent rights and performance awards. The Plan limited the number of common units that may be issued pursuant to awards under the Plan to 4,064,035 units. After giving effect to the Plan, to the extent that an award is forfeited, cancelled, exercised, settled in cash, or otherwise terminates or expires without the actual delivery of common units pursuant to such awards, the common units subject to the award will again be available for new awards granted under the Plan; provided, however, that any common units withheld to cover a tax withholding obligation will not again be available for new awards under the Plan. The Plan is administered by Hi-Crush GP’s board of directors or a committee thereof. The cost of services received in exchange for an award of equity instruments is measured based on the grant-date fair value of the award and that cost is generally recognized over the vesting period of the award. Performance Phantom Units - Equity Settled The Partnership has awarded Performance Phantom Units ("PPUs") pursuant to the Plan to certain employees. The number of PPUs that will vest will range from 0% to 200% of the number of initially granted PPUs and is dependent on the Partnership's total unitholder return over a three -year performance period compared to the total unitholder return of a designated peer group. Each PPU represents the right to receive, upon vesting, one common unit representing limited partner interests in the Partnership. The PPUs are also entitled to forfeitable distribution equivalent rights ("DERs"), which accumulate during the performance period and are paid in cash on the date of settlement. The fair value of each PPU is estimated using a fair value approach and is amortized into compensation expense, reduced for an estimate of expected forfeitures, over the period of service corresponding with the vesting period. Expected volatility is based on the historical market performance of our peer group. The following table presents information relative to our PPUs. Units Grant Date Weighted-Average Fair Value per Unit Outstanding at December 31, 2017 346,141 $ 14.56 Vested (50,850 ) $ 36.62 Forfeited (5,650 ) $ 36.62 Outstanding at March 31, 2018 289,641 $ 10.18 As of March 31, 2018 , total compensation expense not yet recognized related to unvested PPUs was $1,631 , with a weighted average remaining service period of 1.4 years . Time-Based Phantom Units - Equity Settled The Partnership has awarded Time-Based Phantom Units ("TPUs") pursuant to the Plan to certain employees which automatically vest if the employee remains employed at the end of the vesting period. The vesting period is a cliff or graded vesting, generally ranging over a three -year period. Each TPU represents the right to receive, upon vesting, one common unit representing limited partner interests in the Partnership. The TPUs are also entitled to forfeitable DERs, which accumulate during the vesting period and are paid in cash on the date of settlement. The fair value of each TPU is calculated based on the grant-date unit price and is amortized into compensation expense, reduced for an estimate of expected forfeitures, over the period of service corresponding with the vesting period. The following table presents information relative to our TPUs. Units Grant Date Weighted-Average Fair Value per Unit Outstanding at December 31, 2017 1,036,592 $ 10.97 Vested (49,122 ) $ 26.02 Granted 38,023 $ 11.61 Forfeited (12,195 ) $ 9.70 Outstanding at March 31, 2018 1,013,298 $ 10.28 As of March 31, 2018 , total compensation expense not yet recognized related to unvested TPUs was $6,723 , with a weighted average remaining service period of 2.1 years . Director Unit Grants The Partnership issued 36,109 and 29,148 common units to certain of its directors during the three months ended March 31, 2018 and 2017 , respectively. Unit Purchase Programs The Partnership has unit purchase programs ("UPP") offered under the Plan. The UPPs provide participating employees and members of our general partner's board of directors the opportunity to purchase common units representing limited partner interests of the Partnership at a discount. Non-director employees contribute through payroll deductions of the employee's eligible compensation during the applicable offering period. Directors contribute through cash contributions. If the closing price of the Partnership's common units on the purchase date is greater than or equal to the discount applied to the closing market price of our common units on a participant's applicable election date (the "Election Price"), then the participant will receive a number of common units equal to the amount of accumulated payroll deductions or cash contributions, as applicable (the "Contribution"), divided by the Election Price, capped at a specified number of common units. If the purchase date price is less than the Election Price, then the participant’s Contribution will be returned to the participant. On the date of election, the Partnership calculates the fair value of the discount, which is recognized as unit compensation expense on a straight-line basis during the period from election date through the date of purchase. The offering period under the Partnership's UPP adopted in 2015 (the "2015 UPP") ended on February 28, 2017 with a 10% discount of the fair value of our common units on the applicable election date. The participants under the 2015 UPP purchased 300,090 common units at an average price of $5.49 on February 28, 2017 . On September 14, 2017, the board of directors of our general partner approved the termination of the Partnership's UPP that was adopted in March of 2017 (the "2017 UPP") and approved the adoption of the Second 2017 Unit Purchase Program (the "Second 2017 UPP"). On September 14, 2017, the offering period under the Second 2017 UPP commenced, with a 15% discount of the fair value of our common units on the applicable election date and a purchase date of November 15, 2018 . With respect to any eligible individuals electing to participate in the Second 2017 UPP who were also participating in the 2017 UPP, any contributions that were made to the 2017 UPP and not withdrawn by a participant before September 14, 2017 were applied to the Second 2017 UPP. Based on the current elected contributions, the participants will have the right to purchase an aggregate of approximately 347,000 common units. As of March 31, 2018 , total accumulated contributions of $438 from directors under the Second 2017 UPP is maintained within accrued and other current liabilities on our Condensed Consolidated Balance Sheet. Compensation Expense The following table presents total unit-based compensation expense: Three Months Ended March 31, 2018 2017 Performance Phantom Units $ 343 $ 374 Time-Based Phantom Units 1,239 638 Director and other unit grants 119 127 Unit Purchase Programs 100 39 Total compensation expense $ 1,801 $ 1,178

Revenues

Revenues	3 Months Ended
	Mar. 31, 2018
Revenue from Contract with Customer [Abstract]
Revenues	Revenues As described in Note 2 , on January 1, 2018, we adopted ASC Topic 606, Revenue from Contracts with Customers , using the full retrospective method. In accordance with ASC Topic 606, the Partnership recognizes revenue at the point in time control of the promised goods or services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services. A performance obligation is a promise in a contract to transfer a distinct good or service to the customer, and is the unit of account in ASC Topic 606. A contract's transaction price is allocated to each distinct performance obligation and recognized as revenue when, or as, the performance obligation is satisfied. The majority of our contracts are frac sand contracts that have a single performance obligation as the promise to transfer individual goods or services is not separately identifiable from other promises in the contracts and, therefore, not distinct. For the portion of our contracts that contain multiple performance obligations, such as work orders containing a combination of product, transportation, equipment rentals, and labor services, we allocate the transaction price to each performance obligation identified in the contract based on relative standalone selling prices, or estimates of such prices, and recognize the related revenue as control of each individual product or service is transferred to the customer, in satisfaction of the corresponding performance obligations. Disaggregation of Revenues The following table presents our revenues disaggregated by contractual relationships: Three Months Ended March 31, 2018 2017 Sales to contract customers $ 164,067 $ 55,897 Spot sales 27,417 27,371 Frac sand sales revenues 191,484 83,268 Other revenues 26,629 96 Total revenues $ 218,113 $ 83,364 Practical Expedients and Exemptions We have elected to use the practical expedients allowed under ASC 606-10-50-14, pursuant to which we have excluded disclosures of transaction prices allocated to remaining performance obligations and when we expect to recognize such revenue. We have various long-term contracts with minimum purchase and supply requirements with terms expiring between 2018 and 2024 . The remaining performance obligations are primarily comprised of unfulfilled product, transportation service, and labor service orders, some of which hold a remaining duration of less than one year. Our transaction price for volumes and services under these contracts is based on timing of customer orders, points of sale, mix of products sold, impact of market conditions and potential contract negotiations, which have not yet been determined and therefore the price is variable in nature. The long term portion of deferred revenue represents customer prepayments for which related current performance obligations do not yet exist, but are expected to arise, before the expiration of the term. Deferred Revenues As of March 31, 2018 , the Partnership has recorded a total liability of $10,707 for prepayments of future deliveries of frac sand. These prepayments are refundable in the event that the Partnership is unable to meet the minimum sand volumes required under the contract. We expect to recognize these revenues over the next 2.4 years . Changes in deferred revenues consisted of the following: Balance at December 31, 2017 $ 11,783 Collection of prepayments — Revenues recognized (1,076 ) Balance at March 31, 2018 $ 10,707

Related Party Transactions

Related Party Transactions	3 Months Ended
	Mar. 31, 2018
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions Effective August 16, 2012, our sponsor entered into a services agreement (the "Services Agreement") with our general partner, Hi-Crush Services LLC ("Hi-Crush Services") and the Partnership, pursuant to which Hi-Crush Services provides certain management and administrative services to the Partnership to assist in operating the Partnership’s business. Under the Services Agreement, the Partnership reimburses Hi-Crush Services and its affiliates, on a monthly basis, for the allocable expenses it incurs in its performance under the Services Agreement. These expenses include, among other things, administrative, rent and other expenses for individuals and entities that perform services for the Partnership. Hi-Crush Services and its affiliates will not be liable to the Partnership for its performance of services under the Services Agreement, except for liabilities resulting from gross negligence. During the three months ended March 31, 2018 and 2017 , the Partnership incurred $1,875 and $1,292 , respectively, of management and administrative service expenses from Hi-Crush Services. In the normal course of business, our sponsor and its affiliates, including Hi-Crush Services, and the Partnership may from time to time make payments on behalf of each other. As of March 31, 2018 , an outstanding balance of $8,821 payable to our sponsor is maintained as a current liability under the caption "Due to sponsor". On September 8, 2016, the Partnership entered into an agreement to become a member of PropX, which is accounted for as an equity method investment. As of March 31, 2018 and December 31, 2017 , the Partnership purchased $7,537 and $6,593 , respectively, of equipment from PropX, which is reflected in property, plant and equipment. As of March 31, 2018 and December 31, 2017 , the Partnership had accounts payable of $325 and $1,273 , respectively, to PropX, which is reflected in accounts payable on our Condensed Consolidated Balance Sheet. In addition to equipment purchases, during the three months ended March 31, 2018 and 2017 , we incurred $360 and $265 , respectively, of lease expense for the use of PropX equipment, which is reflected in cost of goods sold. During the three months ended March 31, 2018 , we made a lease prepayment of $3,211 for the use of PropX equipment. During the three months ended March 31, 2018 and 2017

Segment Reporting

Segment Reporting	3 Months Ended
	Mar. 31, 2018
Segment Reporting [Abstract]
Segment Reporting	Segment Reporting The Partnership manages, operates and owns assets utilized to supply frac sand to its customers. It conducts operations through its one

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2018
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On April 18, 2018 , our general partner's board of directors declared a cash distribution for the first quarter of 2018 totaling $19,888 , or $0.225 per common unit. This distribution will be paid on May 15, 2018 to unitholders of record on May 1, 2018 . No

Significant Accounting Polici20

Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
Accounts Receivable	Accounts Receivable Trade receivables relate to sales of frac sand and related services for which credit is extended based on the customer’s credit history and are recorded at the invoiced amount and do not bear interest. The Partnership regularly reviews the collectability of accounts receivable. When it is probable that all or part of an outstanding balance will not be collected, the Partnership establishes or adjusts an allowance as necessary generally using the specific identification method. Account balances are charged against the allowance after all means of collection have been exhausted and potential recovery is considered remote. As of March 31, 2018 and December 31, 2017 , the Partnership maintained an allowance for doubtful accounts of $1,060 .
Deferred Charges	Deferred ChargesCertain direct costs incurred in connection with debt financing have been capitalized and are being amortized using the straight-line method, which approximates the effective interest method, over the life of the debt. Amortization expense is included in interest expense.
Equity Method Investments	Equity Method InvestmentsThe Partnership accounts for investments, which it does not control but has the ability to exercise significant influence, using the equity method of accounting. Under this method, the investment is carried originally at cost, increased by any allocated share of the Partnership's net income and contributions made, and decreased by any allocated share of the Partnership's net losses and distributions received. The Partnership's allocated share of income and losses are based on the rights and priorities outlined in the equity investment agreement.
Contingent Consideration	Contingent Consideration Accounting standards require that contingent consideration be recorded at fair value at the date of acquisition and revalued during subsequent reporting dates under the acquisition method of accounting. In connection with its recent acquisitions of Hi-Crush Blair LLC ("Blair") and Whitehall and Other Assets, the Partnership entered into certain contingent consideration arrangements to pay up to $10,000 and $65,000 , respectively, to its sponsor. The original estimated fair value of the contingent consideration liability recorded at the date of acquisitions was $5,000 and $14,000 for Blair and Whitehall, respectively. During the first quarter of 2018, the Partnership's paid $5,000 and $20,000 of contingent consideration related to the Blair acquisition and Whitehall Contribution, respectively, to our sponsor with respect to the 2017 measurement period, which is reflected as financing activity in our Condensed Consolidated Statements of Cash Flows.
Revenue Recognition	Revenue Recognition On January 1, 2018, we adopted the new accounting standard ASU 2014-09 (Topic 606), Revenue from Contracts with Customers and all the related amendments to all contracts using the full retrospective method. The adoption of ASU 2014-09 had no impact on our revenue recognition practices or impact to our Consolidated Financial Statements but required additional disclosures. Refer to Note 10 - Revenues for additional disclosure regarding revenues. We generate frac sand revenues from the sale of raw frac sand that our customers purchase for use in the oil and gas industry. A substantial portion of our frac sand is sold to customers with whom we have long-term supply agreements, the current terms of which expire between 2018 and 2024 . The agreements define, among other commitments, the volume of product that the Partnership must provide and the volume that the customer must purchase by the end of the defined periods. Pricing structures under our agreements are in many cases subject to certain contractual adjustments and consist of a combination of market-based pricing and fixed pricing. These arrangements may undergo negotiations regarding pricing and volume requirements, which may occur in volatile market conditions. We also sell sand through individual purchase orders executed on the spot market, at prices and other terms determined by the existing market conditions as well as the specific requirements of the customer. We typically invoice our customers as the product is delivered and title transfers to the customer, with standard collection terms of net 30 days. Frac sand sales revenues are recognized at the point in time following the transfer of control to the customer when legal title passes, which may occur at the production facility, rail origin, terminal or wellsite. Revenue recognition is driven by the execution and delivery of frac sand by the Partnership to the customer, which is initiated by the customer placing an order for frac sand, the Partnership accepting and processing the order, and the physical delivery of sand at the location specified by the customer. At that point in time, delivery has occurred, evidence of a contractual arrangement exists and collectability is reasonably assured. Revenue from make-whole provisions in our customer contracts is recognized as other revenue at the end of the defined period when collectability is certain. Customer prepayments in excess of customer obligations remaining on account upon the expiration or termination of a contract are recognized as other operating income during the period in which the expiration or termination occurs. We generate other revenues primarily through the performance of our PropStream TM logistics service, which includes transportation, equipment rental, and labor services and through activities performed at our in-basin terminals, including transloading sand for counterparties, and lease of storage space. Transportation services typically consist of transporting proppant from storage facilities to the wellsite and are contracted through work orders executed under established pricing agreements. The amount invoiced reflects the transportation services rendered. Equipment rental services provide customers with use of our PropStream fleet equipment for either contractual periods defined through formal agreements or for work orders under established pricing agreements. The amounts invoiced reflect either the contractual monthly minimum, or the length of time the equipment was utilized in the billing period. Labor services provide customers with supervisory, logistics, or field personnel through formal agreements or work orders executed under established pricing agreements. The amounts invoiced reflect either the contractual monthly minimum, or the amount of time our labor services were utilized in the billing period.
Deferred Revenues	Deferred Revenues We occasionally receive prepayments from customers for future deliveries of frac sand. These prepayments represent consideration that is unconditional for which we have yet to transfer the sand. Amounts received from customers in advance of sand deliveries are recorded as contract liabilities referred to as deferred revenues and recognized as revenue upon delivery of the sand.
Fair Value of Financial Instruments	Fair Value of Financial Instruments The amounts reported in the balance sheet as current assets or liabilities, including cash, accounts receivable, accounts payable, accrued and other current liabilities approximate fair value due to the short-term maturities of these instruments. The fair value of the senior secured term loan approximated $198,515 as of March 31, 2018 , based on the market price quoted from external sources, compared with a carrying value of $199,500
Net Income per Limited Partner Unit	Net Income per Limited Partner Unit We have identified the sponsor’s incentive distribution rights as participating securities and compute income per unit using the two-class method under which any excess of distributions declared over net income or loss shall be allocated to the partners based on their respective sharing of income specified in the partnership agreement. Net income or loss per unit applicable to limited partners is computed by dividing limited partners’ interest in net income or loss, after deducting any sponsor incentive distributions, by the weighted-average number of outstanding limited partner units. As described in Note 1
Income Taxes	Income TaxesThe Partnership is a pass-through entity and is not considered a taxable entity for federal tax purposes. Therefore, there is not a provision for income taxes in the accompanying Condensed Consolidated Financial Statements. The Partnership’s net income or loss is allocated to its partners in accordance with the partnership agreement. The partners are taxed individually on their share of the Partnership’s earnings.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In February 2016, the FASB issued Accounting Standards Update No. 2016-02 ("ASU 2016-02"), Leases (Topic 842). This update will impact all leases with durations greater than twelve months. In general, such arrangements will be recognized as assets and liabilities on the balance sheet of the lessee. Under the new accounting guidance a right-of-use asset and lease obligation will be recorded for all leases, whether operating or financing, while the statement of operations will reflect lease expense for operating leases and amortization/interest expense for financing leases. The balance sheet amount recorded for existing leases at the date of adoption will be calculated using the applicable incremental borrowing rate at the date of adoption. The new accounting guidance is effective for the Partnership beginning in the first quarter of 2019 and should be applied retrospectively. The FASB has also issued the following standards which clarify ASU 2016-02 and have the same effective date as the original standard: ASU 2017-13, Revenue Recognition (Topic 605), Revenue from Contracts with Customers (Topic 606), Leases (Topic 840), and Leases (Topic 842) and ASU 2018-01, Leases (Topic 842): Land Easement Practical Expedient for Transition to Topic 842

Acquisitions (Tables)

Acquisitions (Tables)	3 Months Ended
	Mar. 31, 2018
Business Combinations [Abstract]
Schedule of Total Purchase Consideration, Asset Acquisition	The following table summarizes the total purchase consideration: Cash paid to sellers $ 200,000 Issuance of common units to sellers 62,242 Transactions costs associated with the acquisition 830 Cost of Permian Basin Sand acquisition $ 263,072
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	The following table summarizes the carrying value of the Whitehall and Other Assets net assets as of March 15, 2017, and the allocation of the purchase price: Net assets of Hi-Crush Whitehall LLC and Other Assets as of March 15, 2017: Cash $ 198 Inventories 4,941 Prepaid expenses and other current assets 3 Property, plant and equipment 124,811 Accounts payable (938 ) Accrued liabilities and other current liabilities (386 ) Due to Hi-Crush Partners LP (2,615 ) Asset retirement obligation (1,716 ) Total carrying value of Whitehall and Other Assets net assets $ 124,298 Allocation of purchase price Carrying value of sponsor's non-controlling interest prior to Whitehall Contribution $ 119,108 Excess purchase price over the acquired interest (a) 34,892 Cost of Whitehall and Other Assets acquisition $ 154,000 (a) The deemed distribution attributable to the purchase price was allocated to the common unitholders and excludes the $14,000 estimated fair value of contingent consideration payable in the future. During the first quarter of 2018, the Partnership paid $20,000
Business Acquisition, Recast Financial Information	The following table presents, on a supplemental basis, our recast revenues, net loss, net loss attributable to Hi-Crush Partners LP and net loss per limited partner unit giving effect to the Whitehall Contribution, as reconciled to the revenues, net loss, net loss attributable to Hi-Crush Partners LP and net loss per limited partner unit of the Partnership. Three Months Ended March 31, 2017 Partnership Historical Whitehall and Other Assets through March 15, 2017 Eliminations Partnership Recast (Supplemental) Revenues $ 83,364 $ — $ — $ 83,364 Net loss $ (5,386 ) $ (1,366 ) $ (79 ) $ (6,831 ) Net loss attributable to Hi-Crush Partners LP $ (5,360 ) $ (1,392 ) $ (79 ) $ (6,831 ) Net loss per limited partner unit - basic $ (0.07 ) $ (0.09 )

Inventories (Tables)

Inventories (Tables)	3 Months Ended
	Mar. 31, 2018
Inventory Disclosure [Abstract]
Components of Inventories	Inventories consisted of the following: March 31, 2018 December 31, 2017 Raw material $ 767 $ 498 Work-in-process 7,224 18,739 Finished goods 24,608 22,892 Spare parts 2,338 2,143 Inventories $ 34,937 $ 44,272

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	3 Months Ended
	Mar. 31, 2018
Property, Plant and Equipment [Abstract]
Components of Property, Plant and Equipment	Property, plant and equipment consisted of the following: March 31, 2018 December 31, 2017 Buildings $ 21,579 $ 21,532 Mining property and mine development 383,644 381,653 Plant and equipment 391,019 389,197 Rail and rail equipment 55,783 55,783 Transload facilities and equipment 122,041 121,522 Construction-in-progress 15,954 14,454 Property, plant and equipment 990,020 984,141 Less: Accumulated depreciation and depletion (90,698 ) (84,983 ) Property, plant and equipment, net $ 899,322 $ 899,158

Long-Term Debt (Tables)

Long-Term Debt (Tables)	3 Months Ended
	Mar. 31, 2018
Debt Disclosure [Abstract]
Components of Long-Term Debt	Long-term debt consisted of the following: March 31, 2018 December 31, 2017 Revolving Credit Agreement $ — $ — Term Loan Credit Facility 199,500 200,000 Less: Unamortized original issue discount (1,922 ) (1,992 ) Less: Unamortized debt issuance costs (3,533 ) (3,643 ) Other notes payable 2,097 3,054 Total debt 196,142 197,419 Less: current portion of long-term debt (2,968 ) (2,957 ) Long-term debt $ 193,174 $ 194,462

Commitments and Contingencies (

Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Schedule of Contractual Obligations	As of March 31, 2018 , future minimum operating lease payments and minimum purchase commitments are as follows: Fiscal Year Operating Leases Minimum Purchase Commitments 2018 (remaining months) $ 23,137 $ 4,185 2019 33,711 2,616 2020 31,574 2,296 2021 24,812 2,296 2022 18,036 2,296 Thereafter 18,011 1,871 $ 149,281 $ 15,560
Schedule of Business Acquisitions, Contingent Consideration	The following table outlines the remaining original fair value reflected as the carrying value in the financial statements, the range of minimum and maximum undiscounted payments, and a sensitivity calculation of the current estimated fair value and sensitivities based on achieving Adjusted EBITDA levels 10% above or below the Partnership’s current forecasted results as of March 31, 2018 . Based on the significant estimates and assumptions included in the analysis, actual results could differ from these estimates. Undiscounted Payments Sensitivity Analysis Transaction Carrying Value of Liability Minimum Maximum Current Estimated Fair Value -10% Adjusted EBITDA +10% Adjusted EBITDA Blair Contribution $ 3,000 $ — $ 5,000 $ 2,282 $ 2,282 $ 2,282 Whitehall Contribution $ 4,000 $ — $ 45,000 $ 11,409 $ — $ 11,409

Equity (Tables)

Equity (Tables)	3 Months Ended
	Mar. 31, 2018
Equity [Abstract]
Schedule Of Common Unit Repurchases	The following table presents information with respect to repurchases of common units made by the Partnership during the periods presented, which were retired upon repurchase: Three Months Ended March 31, 2018 2017 Number of units purchased 753,090 — Average price paid per unit including commission $ 12.52 $ — Total cost $ 9,426 $ —
Schedule of Distributions Made to Limited Partner Unitholders	Our most recent distributions have been as follows: Declaration Date Amount Declared Per Unit Record Date Payment Date Payment to Limited Partner Units Payment to Holders of Incentive Distribution Rights October 16, 2017 $ 0.1500 October 31, 2017 November 14, 2017 $ 13,656 $ — January 17, 2018 $ 0.2000 February 1, 2018 February 13, 2018 $ 17,809 $ — April 18, 2018 $ 0.2250 May 1, 2018 May 15, 2018 $ 19,888 $ —
Schedule of Weighted Average Limited Partner Units Outstanding	The following table outlines our basic and diluted, weighted average limited partner units outstanding during the relevant periods: Three Months Ended March 31, 2018 2017 Basic common units outstanding 88,870,379 73,586,987 Potentially dilutive common units 1,302,939 — Diluted common units outstanding 90,173,318 73,586,987
Schedule of Net Income Attributable to Limited Partners	The following tables provide a reconciliation of net income (loss) and the assumed allocation of net income (loss) under the two-class method for purposes of computing net income (loss) per limited partner unit for the three months ended March 31, 2018 and 2017 : Three Months Ended March 31, 2018 General Partner and IDRs Limited Partner Units Total Declared distribution $ — $ 19,888 $ 19,888 Assumed allocation of earnings in excess of distributions 854 33,207 34,061 Assumed allocation of net income $ 854 $ 53,095 $ 53,949 Earnings per limited partner unit - basic $ 0.60 Earnings per limited partner unit - diluted $ 0.59 Three Months Ended March 31, 2017 General Partner and IDRs Limited Partner Units Total Declared distribution $ — $ — $ — Assumed allocation of distributions in excess of loss — (6,831 ) (6,831 ) Add back recast losses attributable to Whitehall and Other Assets through March 15, 2017 — 1,471 1,471 Assumed allocation of net loss $ — $ (5,360 ) $ (5,360 ) Loss per limited partner unit - basic $ (0.07 ) Loss per limited partner unit - diluted $ (0.07 )

Unit-Based Compensation (Tables

Unit-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Performance Phantom Units Activity	The following table presents information relative to our PPUs. Units Grant Date Weighted-Average Fair Value per Unit Outstanding at December 31, 2017 346,141 $ 14.56 Vested (50,850 ) $ 36.62 Forfeited (5,650 ) $ 36.62 Outstanding at March 31, 2018 289,641 $ 10.18
Schedule of Time-based Phantom Units Activity	The following table presents information relative to our TPUs. Units Grant Date Weighted-Average Fair Value per Unit Outstanding at December 31, 2017 1,036,592 $ 10.97 Vested (49,122 ) $ 26.02 Granted 38,023 $ 11.61 Forfeited (12,195 ) $ 9.70 Outstanding at March 31, 2018 1,013,298 $ 10.28
Schedule of Unit-based Compensation Expense	The following table presents total unit-based compensation expense: Three Months Ended March 31, 2018 2017 Performance Phantom Units $ 343 $ 374 Time-Based Phantom Units 1,239 638 Director and other unit grants 119 127 Unit Purchase Programs 100 39 Total compensation expense $ 1,801 $ 1,178

Revenues (Tables)

Revenues (Tables)	3 Months Ended
	Mar. 31, 2018
Revenue from Contract with Customer [Abstract]
Disaggregated Revenues	The following table presents our revenues disaggregated by contractual relationships: Three Months Ended March 31, 2018 2017 Sales to contract customers $ 164,067 $ 55,897 Spot sales 27,417 27,371 Frac sand sales revenues 191,484 83,268 Other revenues 26,629 96 Total revenues $ 218,113 $ 83,364
Changes in Deferred Revenues	Changes in deferred revenues consisted of the following: Balance at December 31, 2017 $ 11,783 Collection of prepayments — Revenues recognized (1,076 ) Balance at March 31, 2018 $ 10,707

Basis of Presentation and Use29

Basis of Presentation and Use of Estimates - Narrative (Details) - USD ($) $ in Thousands	Mar. 15, 2017	Mar. 31, 2018	Mar. 31, 2017	May 08, 2012
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Percentage of limited partner interest				100.00%
Business Acquisition [Line Items]
Payments to acquire business		$ 0	$ 140,000
Hi Crush Augusta LLC
Business Acquisition [Line Items]
Ownership percentage	2.00%
Hi-Crush Whitehall LLC and Other Assets
Business Acquisition [Line Items]
Payments to acquire business	$ 140,000
Business acquisition, maximum contingent consideration to pay	$ 65,000	$ 45,000
Business acquisition, contingent consideration period	2 years

Significant Accounting Polici30

Significant Accounting Policies - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Mar. 15, 2017	Aug. 31, 2016
Accounting Policies [Abstract]
Allowance for doubtful accounts	$ 1,060		$ 1,060
Schedule of Equity Method Investments [Line Items]
Equity method investment in PropX	18,641		17,475
Payments to fund equity method investment	0	$ 4,168
Earnings (loss) from equity method investments	1,166	(566)
Payment of contingent consideration	25,000	0
Payment in excess of contingent consideration liability	13,000
Proppant Express Investments, LLC
Schedule of Equity Method Investments [Line Items]
Equity method investment in PropX	18,641
Payments to fund equity method investment	0	4,168
Earnings (loss) from equity method investments	1,166	$ (566)
$200M Term Loan Credit Facility | Term Loan Credit Facility
Line of Credit Facility [Line Items]
Fair value of senior secured term loan	198,515
Carrying value of long-term debt	199,500		$ 200,000
Hi-Crush Blair LLC
Schedule of Equity Method Investments [Line Items]
Business acquisition, maximum contingent consideration to pay	5,000				$ 10,000
Original estimated fair value of contingent consideration liability					$ 5,000
Payment of contingent consideration	5,000
Remaining estimated fair value of contingent consideration	3,000
Hi-Crush Whitehall LLC and Other Assets
Schedule of Equity Method Investments [Line Items]
Business acquisition, maximum contingent consideration to pay	45,000			$ 65,000
Original estimated fair value of contingent consideration liability				$ 14,000
Payment of contingent consideration	20,000
Remaining estimated fair value of contingent consideration	$ 4,000
Minimum
Line of Credit Facility [Line Items]
Long-term Supply Agreements, expiration year	2,018
Maximum
Line of Credit Facility [Line Items]
Long-term Supply Agreements, expiration year	2,024
Limited Partner
Schedule of Equity Method Investments [Line Items]
Payment in excess of contingent consideration liability	$ 13,000

Acquisitions - Narrative (Detai

Acquisitions - Narrative (Details) $ in Thousands	Mar. 15, 2017USD ($)	Mar. 03, 2017USD ($)ashares	Mar. 31, 2018USD ($)	Mar. 31, 2017USD ($)	Dec. 31, 2017USD ($)
Business Acquisition [Line Items]
Cash paid to sellers		$ 200,000
Issuance of common units for asset acquisition		62,242
Cost of Permian Basin Sand acquisition		$ 263,072
Payments to acquire business			$ 0	$ 140,000
Payment of contingent consideration			25,000	$ 0
Hi-Crush Whitehall LLC and Other Assets
Business Acquisition [Line Items]
Payments to acquire business	$ 140,000
Business acquisition, maximum contingent consideration to pay	$ 65,000		45,000
Business acquisition, contingent consideration period	2 years
Acquisition related costs					$ 588
Business acquisition, contingent consideration, value per each threshold	$ 20,000
Payment of contingent consideration			$ 20,000
Business acquisition, contingent consideration, value per cumulative period threshold	25,000
Original estimated fair value of contingent consideration liability	$ 14,000
Common Units
Business Acquisition [Line Items]
Issuance of units for an asset acquisition (in units) | shares		3,438,789
Permian Basin Sand Company, LLC
Business Acquisition [Line Items]
Acres of frac sand reserve acquired | a		1,226

Acquisitions - Summary of total

Acquisitions - Summary of total purchase consideration for Permian Basin Sand Acquisition (Details) $ in Thousands	Mar. 03, 2017USD ($)
Business Combinations [Abstract]
Cash paid to sellers	$ 200,000
Issuance of common units for asset acquisition	62,242
Transactions costs associated with the acquisition	830
Cost of Permian Basin Sand acquisition	$ 263,072

Acquisitions - Carrying value o

Acquisitions - Carrying value of Whitehall and Other Assets's assets and allocation of purchase price (Details) - USD ($) $ in Thousands		Mar. 15, 2017	Mar. 31, 2018	Mar. 31, 2017
Business Acquisition [Line Items]
Payment of contingent consideration			$ 25,000	$ 0
Hi-Crush Whitehall LLC and Other Assets
Business Acquisition [Line Items]
Cash		$ 198
Inventories		4,941
Prepaid expenses and other current assets		3
Property, plant and equipment		124,811
Accounts payable		(938)
Accrued liabilities and other current liabilities		(386)
Due to Hi-Crush Partners LP		(2,615)
Asset retirement obligation		(1,716)
Total carrying value of net assets		124,298
Carrying value of sponsor's non-controlling interest prior to Whitehall Contribution		119,108
Excess purchase price over the acquired interest (a)	[1]	34,892
Cost of acquisition		$ 154,000
Payment of contingent consideration			$ 20,000
[1]	The deemed distribution attributable to the purchase price was allocated to the common unitholders and excludes the $14,000 estimated fair value of contingent consideration payable in the future. During the first quarter of 2018, the Partnership paid $20,000

Acquisitions - Recast Financial

Acquisitions - Recast Financial Results (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Business Acquisition [Line Items]
Revenues	$ 218,113	$ 83,364
Net loss		(6,831)
Net loss attributable to Hi-Crush Partners LP	$ 53,949	$ (6,831)
Net loss per limited partner unit - basic (usd per unit)	$ 0.60	$ (0.07)
Net loss per limited partner unit - basic, pro forma (usd per unit)		$ (0.09)
Historical
Business Acquisition [Line Items]
Revenues		$ 83,364
Net loss		(5,386)
Net loss attributable to Hi-Crush Partners LP		(5,360)
Adjustment | Eliminations
Business Acquisition [Line Items]
Revenues		0
Net loss		(79)
Net loss attributable to Hi-Crush Partners LP		(79)
Hi-Crush Whitehall LLC and Other Assets | Adjustment
Business Acquisition [Line Items]
Revenues		0
Net loss		(1,366)
Net loss attributable to Hi-Crush Partners LP		$ (1,392)

Inventories - Components of Inv

Inventories - Components of Inventories (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Inventory Disclosure [Abstract]
Raw material	$ 767	$ 498
Work-in-process	7,224	18,739
Finished goods	24,608	22,892
Spare parts	2,338	2,143
Inventories	$ 34,937	$ 44,272

Property, Plant and Equipment -

Property, Plant and Equipment - Components of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 990,020	$ 984,141
Less: Accumulated depreciation and depletion	(90,698)	(84,983)
Property, plant and equipment, net	899,322	899,158
Buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment	21,579	21,532
Mining property and mine development
Property, Plant and Equipment [Line Items]
Property, plant and equipment	383,644	381,653
Plant and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment	391,019	389,197
Rail and rail equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment	55,783	55,783
Transload facilities and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment	122,041	121,522
Construction-in-progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 15,954	$ 14,454

Property, Plant and Equipment37

Property, Plant and Equipment - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Property, Plant and Equipment [Abstract]
Depreciation and depletion	$ 7,799	$ 4,829
Gain (loss) on disposal of fixed assets	$ 24	$ 0

Long-Term Debt - Components of

Long-Term Debt - Components of Long-Term Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Total debt	$ 196,142	$ 197,419
Less: current portion of long-term debt	(2,968)	(2,957)
Long-term debt	193,174	194,462
Other notes payable
Debt Instrument [Line Items]
Partnership debt	2,097	3,054
Revolving Credit Facility | $125M Revolving Credit Agreement
Debt Instrument [Line Items]
Partnership debt	0	0
Term Loan Credit Facility | $200M Term Loan Credit Facility
Debt Instrument [Line Items]
Partnership debt	199,500	200,000
Less: Unamortized original issue discount	(1,922)	(1,992)
Less: Unamortized debt issuance costs	(3,533)	$ (3,643)
Total debt	$ 194,045

Long-Term Debt - Narrative (Det

Long-Term Debt - Narrative (Details)	Dec. 22, 2017USD ($)	Apr. 30, 2018USD ($)	Mar. 31, 2018USD ($)	Mar. 31, 2017USD ($)	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)	Dec. 31, 2017USD ($)
Line of Credit Facility [Line Items]
Letter of credit commitments			$ 21,153,000
Partnership debt			196,142,000					$ 197,419,000
Cash consideration paid to acquire land					$ 2,500,000	$ 2,500,000	$ 2,500,000
Other notes payable
Line of Credit Facility [Line Items]
Carrying value of long-term debt			2,097,000					3,054,000
Prepayments made by Partnership on promissory notes			$ 957,000	$ 962,000
Effective interest rate			0.74%
Other notes payable | Subsequent Event
Line of Credit Facility [Line Items]
Prepayments made by Partnership on promissory notes		$ 968,000
Promissory Note Due In October 2017 | Other notes payable
Line of Credit Facility [Line Items]
Partnership debt							$ 3,676,000
Terms of promissory note issued							3 years
Promissory Note Due In December 2018 | Other notes payable
Line of Credit Facility [Line Items]
Partnership debt						$ 3,676,000
Terms of promissory note issued						3 years
Promissory Note Due in December 2019 | Other notes payable
Line of Credit Facility [Line Items]
Partnership debt					$ 3,676,000
Terms of promissory note issued					3 years
Revolving Credit Facility | $125M Revolving Credit Agreement
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity			$ 125,000,000
Undrawn borrowing capacity			103,847,000
Carrying value of long-term debt			$ 0					0
Maximum leverage ratio			3.25
Minimum interest coverage ratio			2.5
Asset coverage ratio			1.5
Revolving Credit Facility | $125M Revolving Credit Agreement | Base rate | Minimum
Line of Credit Facility [Line Items]
Interest rate basis points of credit facility			1.50%
Revolving Credit Facility | $125M Revolving Credit Agreement | Base rate | Maximum
Line of Credit Facility [Line Items]
Interest rate basis points of credit facility			2.25%
Revolving Credit Facility | $125M Revolving Credit Agreement | Eurodollar | Minimum
Line of Credit Facility [Line Items]
Interest rate basis points of credit facility			2.50%
Revolving Credit Facility | $125M Revolving Credit Agreement | Eurodollar | Maximum
Line of Credit Facility [Line Items]
Interest rate basis points of credit facility			3.25%
Letter of Credit | $125M Revolving Credit Agreement
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity			$ 30,000,000
Swing line loan | $125M Revolving Credit Agreement
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity			10,000,000
Term Loan Credit Facility | $200M Term Loan Credit Facility
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 200,000,000
Carrying value of long-term debt			199,500,000					200,000,000
Line of credit facility, increase in commitment amount	$ 100,000,000
Partnership debt			194,045,000
Debt instrument, discount			1,922,000					1,992,000
Unamortized debt issuance costs in long-term debt			$ 3,533,000					$ 3,643,000
Interest rate under Term Loan Credit Facility			6.31%
Term Loan Credit Facility | $200M Term Loan Credit Facility | Base rate
Line of Credit Facility [Line Items]
Interest rate basis points of credit facility	2.75%
Possible increase in basis points of credit facility	0.25%
Term Loan Credit Facility | $200M Term Loan Credit Facility | Eurodollar
Line of Credit Facility [Line Items]
Interest rate basis points of credit facility	3.75%
Possible increase in basis points of credit facility	0.25%
Term Loan Credit Facility | $200M Term Loan Credit Facility | LIBOR Rate | Minimum
Line of Credit Facility [Line Items]
Interest rate basis points of credit facility	1.00%

Commitments and Contingencies -

Commitments and Contingencies - Narrative (Details)	Mar. 15, 2017USD ($)	Aug. 31, 2016USD ($)	Mar. 31, 2018USD ($)railcar	Mar. 31, 2017USD ($)
Long-term Purchase Commitment [Line Items]
Payments for non-delivery of minimum annual sand volumes			$ 0
Royalty expense			$ 3,540,000	$ 2,636,000
Property value guarantees, sale period threshold			180 days
Property value guaranty purchases			$ 2,188,000
Expected number of additional leased railcars | railcar			700
Payment of contingent consideration			$ 25,000,000	$ 0
Hi-Crush Blair LLC
Long-term Purchase Commitment [Line Items]
Business acquisition, maximum contingent consideration to pay		$ 10,000,000	5,000,000
Payment of contingent consideration			5,000,000
Business acquisition, contingent consideration period		2 years
Hi-Crush Whitehall LLC and Other Assets
Long-term Purchase Commitment [Line Items]
Business acquisition, maximum contingent consideration to pay	$ 65,000,000		45,000,000
Payment of contingent consideration			$ 20,000,000
Business acquisition, contingent consideration period	2 years
Minimum
Long-term Purchase Commitment [Line Items]
Initial terms of contracted minimum sand volumes			1 year
Maximum
Long-term Purchase Commitment [Line Items]
Initial terms of contracted minimum sand volumes			7 years

Commitments and Contingencies41

Commitments and Contingencies - Schedule of Contractual Obligations (Details) $ in Thousands	Mar. 31, 2018USD ($)
Operating Leases
Operating leases, future minimum payments, remainder of fiscal year	$ 23,137
Operating leases, future minimum payments, due in two years	33,711
Operating leases, future minimum payments, due in three years	31,574
Operating leases, future minimum payments, due in four years	24,812
Operating leases, future minimum payments, due in five years	18,036
Operating leases, future minimum payments, due thereafter	18,011
Operating Leases	149,281
Minimum Purchase Commitments
Minimum purchase commitments, remainder of fiscal year	4,185
Minimum purchase commitments, due in second year	2,616
Minimum purchase commitments, due in third year	2,296
Minimum purchase commitments, due in fourth year	2,296
Minimum purchase commitments, due in fifth year	2,296
Minimum purchase commitments, due thereafter	1,871
Minimum Purchase Commitments	$ 15,560

Commitments and Contingencies42

Commitments and Contingencies - Schedule of Contingent Consideration (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Mar. 15, 2017	Aug. 31, 2016
Hi-Crush Blair LLC
Business Acquisition, Contingent Consideration [Line Items]
Remaining estimated fair value of contingent consideration	$ 3,000
Business acquisition, minimum contingent consideration to pay	0
Business acquisition, maximum contingent consideration to pay	5,000		$ 10,000
Business acquisition, current estimated fair value of contingent consideration	2,282
Hi-Crush Blair LLC | Minimum
Business Acquisition, Contingent Consideration [Line Items]
Sensitivity analysis of fair value of contingent consideration, impact of 10 percent change in assumptions	2,282
Hi-Crush Blair LLC | Maximum
Business Acquisition, Contingent Consideration [Line Items]
Sensitivity analysis of fair value of contingent consideration, impact of 10 percent change in assumptions	2,282
Hi-Crush Whitehall LLC and Other Assets
Business Acquisition, Contingent Consideration [Line Items]
Remaining estimated fair value of contingent consideration	4,000
Business acquisition, minimum contingent consideration to pay	0
Business acquisition, maximum contingent consideration to pay	45,000	$ 65,000
Business acquisition, current estimated fair value of contingent consideration	11,409
Hi-Crush Whitehall LLC and Other Assets | Minimum
Business Acquisition, Contingent Consideration [Line Items]
Sensitivity analysis of fair value of contingent consideration, impact of 10 percent change in assumptions	0
Hi-Crush Whitehall LLC and Other Assets | Maximum
Business Acquisition, Contingent Consideration [Line Items]
Sensitivity analysis of fair value of contingent consideration, impact of 10 percent change in assumptions	$ 11,409

Equity - Narrative (Details)

Equity - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	Mar. 03, 2017	Jan. 04, 2017	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Dec. 31, 2017	Oct. 17, 2017	Jun. 30, 2017
Class of Stock [Line Items]
Limited partners interest, units outstanding (in units)			88,392,179		88,392,179	89,009,188
Number of common units issued (in units)				23,575,000
Proceeds from equity issuances, net			$ 0	$ 412,667
Repurchase of common units, cumulative value			$ 9,426
Common unit aggregate offering price, maximum amount		$ 50,000
Target incentive distribution levels per unit, per quarter (usd per unit)			$ 0.54625
Incentive cash distributions to General Partner			100.00%
Weighted average potentially dilutive common units outstanding (in units)			1,302,939	0
General Partner and IDRs
Class of Stock [Line Items]
Net income loss allocated to holders of incentive distribution rights			$ 0	$ 0
Minimum
Class of Stock [Line Items]
Incentive distribution rights, distribution levels in percentage			15.00%
Maximum
Class of Stock [Line Items]
Incentive distribution rights, distribution levels in percentage			50.00%
Sponsor Owned Common Units
Class of Stock [Line Items]
Limited partners interest, units outstanding (in units)								20,693,643
Common Units
Class of Stock [Line Items]
Management and board of directors ownership interest in limited partner units			11.00%
Issuance of units for an asset acquisition (in units)	3,438,789
Hi-Crush Partners LP Long Term Incentive Plan
Class of Stock [Line Items]
Weighted average potentially dilutive common units outstanding (in units)			1,302,939
Potentially dilutive awards granted and outstanding excluded from diluted earnings per unit calculation (in units)				566,539
October 2017 Unit Repurchase Plan
Class of Stock [Line Items]
Repurchase of common units, authorized amount							$ 100,000
Repurchase of common units, cumulative value			$ 9,426	$ 0	$ 29,426
Repurchase of common units, remaining authorized amount			$ 70,574		$ 70,574
October 2017 Unit Repurchase Plan | Common Units
Class of Stock [Line Items]
Number of common units repurchased, cumulative (in units)			753,090	0	2,783,253

Equity - Unit Buyback Program (

Equity - Unit Buyback Program (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		5 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018
Capital Unit [Line Items]
Repurchase of common units	$ 9,426
October 2017 Unit Repurchase Plan
Capital Unit [Line Items]
Repurchase of common units, average price including commissions	$ 12.52	$ 0
Repurchase of common units	$ 9,426	$ 0	$ 29,426
October 2017 Unit Repurchase Plan | Common Units
Capital Unit [Line Items]
Number of common units repurchased (in units)	753,090	0	2,783,253

Equity - Distributions (Details

Equity - Distributions (Details) - USD ($) $ / shares in Units, $ in Thousands	May 15, 2018	Apr. 18, 2018	Feb. 13, 2018	Jan. 17, 2018	Nov. 14, 2017	Oct. 16, 2017	Mar. 31, 2018	Mar. 31, 2017
Distribution Made to Limited Partner [Line Items]
Amount Declared Per Unit (usd per unit)							$ 0.225	$ 0
Limited Partner
Distribution Made to Limited Partner [Line Items]
Amount Declared Per Unit (usd per unit)				$ 0.2000		$ 0.1500
Payment to Limited Partner Units			$ 17,809		$ 13,656
General Partner and IDRs
Distribution Made to Limited Partner [Line Items]
Payment to Holders of Incentive Distribution Rights			$ 0		$ 0		$ 0	$ 0
Subsequent Event | Limited Partner
Distribution Made to Limited Partner [Line Items]
Amount Declared Per Unit (usd per unit)		$ 0.2250
Payment to Limited Partner Units	$ 19,888
Subsequent Event | General Partner and IDRs
Distribution Made to Limited Partner [Line Items]
Payment to Holders of Incentive Distribution Rights	$ 0

Equity - Weighted Average Limit

Equity - Weighted Average Limited Partner Units Outstanding (Details) - shares	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Equity [Abstract]
Weighted average limited partner units outstanding, basic (in units)	88,870,379	73,586,987
Weighted average potentially dilutive common units outstanding (in units)	1,302,939	0
Weighted average limited partner units outstanding, diluted (in units)	90,173,318	73,586,987

Equity - Schedule of Net Income

Equity - Schedule of Net Income Attributable to Limited Partners (Details) - USD ($) $ / shares in Units, $ in Thousands	Feb. 13, 2018	Nov. 14, 2017	Mar. 31, 2018	Mar. 31, 2017
Distribution Made to Limited Partner [Line Items]
Declared distribution to Limited Partner Units			$ 19,888	$ 0
Assumed allocation of earning (loss) in excess of distributions			34,061	(6,831)
Assumed allocation of net income (loss) to Limited Partners			$ 53,949	$ (5,360)
Earnings (loss) per limited partner unit - basic (usd per unit)			$ 0.60	$ (0.07)
Earnings (loss) per limited partner unit - diluted (usd per unit)			$ 0.59	$ (0.07)
Hi-Crush Whitehall LLC and Other Assets
Distribution Made to Limited Partner [Line Items]
Add back recast losses attributable to assets contributed by the sponsor				$ 1,471
Common Units
Distribution Made to Limited Partner [Line Items]
Declared distribution to Limited Partner Units			$ 19,888	0
Assumed allocation of earning (loss) in excess of distributions			33,207	(6,831)
Assumed allocation of net income (loss) to Limited Partners			53,095	(5,360)
Common Units | Hi-Crush Whitehall LLC and Other Assets
Distribution Made to Limited Partner [Line Items]
Add back recast losses attributable to assets contributed by the sponsor				1,471
General Partner and IDRs
Distribution Made to Limited Partner [Line Items]
Payment to Holders of Incentive Distribution Rights	$ 0	$ 0	0	0
Assumed allocation of earning (loss) in excess of distributions			854	0
Assumed allocation of net income (loss) to General Partner and IDRs			$ 854	$ 0

Unit-Based Compensation - Narra

Unit-Based Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	Nov. 15, 2018	Feb. 28, 2017	Mar. 31, 2018	Mar. 31, 2017	Sep. 21, 2016
Common Units | Directors
Class of Stock [Line Items]
Number of common units issued to directors			36,109	29,148
Unit Purchase Programs
Class of Stock [Line Items]
Discount of fair value on common units from the applicable election date		10.00%	15.00%
Issuance of units under Unit Purchase Programs		300,090
Weighted average purchase price of common units purchased under Unit Purchase Program		$ 5.49
Unit Purchase Programs | Forecast
Class of Stock [Line Items]
Number of common units allocated to be purchased in the future (in units)	347,000
Unit Purchase Programs | Directors
Class of Stock [Line Items]
Accumulated contributions to Unit Purchase Program from directors			$ 438
Hi-Crush Partners LP Long Term Incentive Plan | Performance Phantom Units
Class of Stock [Line Items]
Award vesting period			3 years
Number of common unit of each award			1
Total compensation expense not yet recognized			$ 1,631
Weighted average remaining service period			1 year 4 months 24 days
Hi-Crush Partners LP Long Term Incentive Plan | Performance Phantom Units | Minimum
Class of Stock [Line Items]
Vesting percentage			0.00%
Hi-Crush Partners LP Long Term Incentive Plan | Performance Phantom Units | Maximum
Class of Stock [Line Items]
Vesting percentage			200.00%
Hi-Crush Partners LP Long Term Incentive Plan | Time-Based Phantom Units
Class of Stock [Line Items]
Award vesting period			3 years
Number of common unit of each award			1
Total compensation expense not yet recognized			$ 6,723
Weighted average remaining service period			2 years 1 month 6 days
Hi-Crush Partners LP Long Term Incentive Plan | Common Units
Class of Stock [Line Items]
Number of common units authorized under the Plan					4,064,035

Unit-Based Compensation - Perfo

Unit-Based Compensation - Performance Phantom Units (Details) - Hi-Crush Partners LP Long Term Incentive Plan - Performance Phantom Units	3 Months Ended
	Mar. 31, 2018$ / sharesshares
Performance Phantom Units
Outstanding units at beginning of period | shares	346,141
Vested units | shares	(50,850)
Forfeited units | shares	(5,650)
Outstanding units at end of period | shares	289,641
Grant Date Weighted-Average Fair Value per Unit
Outstanding units at beginning of period (usd per unit) | $ / shares	$ 14.56
Vested (usd per unit) | $ / shares	36.62
Forfeited (usd per unit) | $ / shares	36.62
Outstanding units at end of period (usd per unit) | $ / shares	$ 10.18

Unit-Based Compensation - Time-

Unit-Based Compensation - Time-Based Phantom Units (Details) - Hi-Crush Partners LP Long Term Incentive Plan - Time-Based Phantom Units	3 Months Ended
	Mar. 31, 2018$ / sharesshares
Time-Based Phantom Units
Outstanding units at beginning of period | shares	1,036,592
Vested units | shares	(49,122)
Granted units | shares	38,023
Forfeited units | shares	(12,195)
Outstanding units at end of period | shares	1,013,298
Grant Date Weighted-Average Fair Value per Unit
Outstanding units at beginning of period (usd per unit) | $ / shares	$ 10.97
Vested (usd per unit) | $ / shares	26.02
Granted (usd per unit) | $ / shares	11.61
Forfeited (usd per unit) | $ / shares	9.70
Outstanding units at end of period (usd per unit) | $ / shares	$ 10.28

Unit-Based Compensation - Total

Unit-Based Compensation - Total Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Compensation Expense [Line Items]
Total compensation expense	$ 1,801	$ 1,178
Performance Phantom Units
Compensation Expense [Line Items]
Total compensation expense	343	374
Time-Based Phantom Units
Compensation Expense [Line Items]
Total compensation expense	1,239	638
Director and other unit grants
Compensation Expense [Line Items]
Total compensation expense	119	127
Unit Purchase Programs
Compensation Expense [Line Items]
Total compensation expense	$ 100	$ 39

Revenues - Narrative (Details)

Revenues - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Deferred revenues	$ 10,707	$ 11,783
Expected period to recognize deferred revenues over	2 years 4 months 24 days
Minimum
Disaggregation of Revenue [Line Items]
Long-term Supply Agreements, expiration year	2,018
Maximum
Disaggregation of Revenue [Line Items]
Long-term Supply Agreements, expiration year	2,024

Revenues - Revenues Disaggregat

Revenues - Revenues Disaggregated by Contractual Obligations (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Disaggregation of Revenue [Line Items]
Total revenues	$ 218,113	$ 83,364
Frac sand sales revenues
Disaggregation of Revenue [Line Items]
Total revenues	191,484	83,268
Sales to contract customers
Disaggregation of Revenue [Line Items]
Total revenues	164,067	55,897
Spot sales
Disaggregation of Revenue [Line Items]
Total revenues	27,417	27,371
Other revenues
Disaggregation of Revenue [Line Items]
Total revenues	$ 26,629	$ 96

Revenues - Deferred Revenues (D

Revenues - Deferred Revenues (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2018USD ($)
Movement in Deferred Revenue [Roll Forward]
Deferred revenues, at beginning of period	$ 11,783
Collection of prepayments	0
Revenues recognized	(1,076)
Deferred revenues, at end of period	$ 10,707

Related Party Transactions - Na

Related Party Transactions - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Related Party Transaction [Line Items]
Due to sponsor	$ 8,821		$ 12,399
Lease expense prepayment, related party	3,211
Hi-Crush Services LLC
Related Party Transaction [Line Items]
Management and administrative services	1,875	$ 1,292
Proppant Express Investments, LLC
Related Party Transaction [Line Items]
Purchases from related parties	7,537		6,593
Accounts payable, related party	325		$ 1,273
Lease expense, related party	$ 360	$ 265

Segment Reporting - Narrative (

Segment Reporting - Narrative (Details)	3 Months Ended
	Mar. 31, 2018segment
Segment Reporting [Abstract]
Number of operating segments	1

Subsequent Events - Narrative (

Subsequent Events - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	May 15, 2018	Apr. 18, 2018	Feb. 13, 2018	Jan. 17, 2018	Nov. 14, 2017	Oct. 16, 2017	Mar. 31, 2018	Mar. 31, 2017
Subsequent Event [Line Items]
Distributions declared per limited partner unit (usd per unit)							$ 0.225	$ 0
General Partner and IDRs
Subsequent Event [Line Items]
Payment to Holders of Incentive Distribution Rights			$ 0		$ 0		$ 0	$ 0
Limited Partner
Subsequent Event [Line Items]
Payment to Limited Partner Units			$ 17,809		$ 13,656
Distributions declared per limited partner unit (usd per unit)				$ 0.2000		$ 0.1500
Subsequent Event | General Partner and IDRs
Subsequent Event [Line Items]
Payment to Holders of Incentive Distribution Rights	$ 0
Subsequent Event | Limited Partner
Subsequent Event [Line Items]
Payment to Limited Partner Units	$ 19,888
Distributions declared per limited partner unit (usd per unit)		$ 0.2250