Hi-Crush (HCR) 10-Q 30 Oct 18 2018 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2018	Oct. 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	Sep. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding		100,866,063

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Current assets:
Cash	$ 175,430	$ 5,662
Accounts receivable, net (Note 2)	122,897	139,448
Inventories (Note 4)	73,037	44,272
Prepaid expenses and other current assets	9,060	2,832
Total current assets	380,424	192,214
Property, plant and equipment, net (Note 5)	951,158	899,158
Intangible assets, net	70,008	8,416
Equity method investments (Note 2)	29,504	17,475
Other assets	8,246	5,877
Total assets	1,439,340	1,123,140
Current liabilities:
Accounts payable	60,537	46,794
Accrued and other current liabilities	54,349	29,931
Current portion of deferred revenues (Note 10)	19,840	4,399
Due to sponsor	5,345	12,399
Current portion of long-term debt (Note 6)	790	2,957
Total current liabilities	140,861	96,480
Deferred revenues (Note 10)	3,241	7,384
Long-term debt (Note 6)	443,974	194,462
Asset retirement obligations	10,552	10,179
Other liabilities (Note 7)	8,464	19,000
Total liabilities	607,092	327,505
Commitments and contingencies (Note 7)
Partners’ capital:
General partner interest	0	0
Limited partners interest, 89,866,063 and 89,009,188 units outstanding, respectively	832,248	795,635
Total partners’ capital	832,248	795,635
Total liabilities and partners’ capital	$ 1,439,340	$ 1,123,140

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - shares	Sep. 30, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Limited partners interest, units outstanding	89,866,063	89,009,188

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Income Statement [Abstract]
Revenues (Note 10)	$ 213,972	$ 167,583	$ 680,605	$ 386,167
Cost of goods sold (excluding depreciation, depletion and amortization)	147,583	119,955	444,097	291,920
Depreciation, depletion and amortization	10,241	8,805	28,522	21,229
Gross profit	56,148	38,823	207,986	73,018
Operating costs and expenses:
General and administrative expenses	16,266	9,583	39,822	28,221
Accretion of asset retirement obligations	124	115	373	343
Other operating expenses	631	200	1,836	343
Other operating income	0	3,554	0	3,554
Income from operations	39,127	32,479	165,955	47,665
Other income (expense):
Earnings (loss) from equity method investments (Note 2)	1,624	128	3,934	(142)
Interest expense	(7,973)	(2,800)	(15,154)	(8,167)
Loss on extinguishment of debt	(6,233)	0	(6,233)	0
Net income	$ 26,545	$ 29,807	$ 148,502	$ 39,356
Earnings per limited partner unit:
Earnings per limited partner unit - basic (usd per unit)	$ 0.30	$ 0.33	$ 1.67	$ 0.48
Earnings per limited partner unit - diluted (usd per unit)	$ 0.29	$ 0.32	$ 1.64	$ 0.47
Weighted average limited partner units outstanding, basic (in units)	89,277,833	91,030,558	88,848,290	85,277,011
Weighted average limited partner units outstanding, diluted (in units)	90,814,714	92,027,624	90,385,171	86,274,077
Distributions declared per limited partner unit (usd per unit)	$ 0.225	$ 0.150	$ 1.200	$ 0.150

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Operating activities:
Net income	$ 148,502	$ 39,356
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and depletion	28,522	21,234
Amortization of intangible assets	2,056	1,262
Unit-based compensation to directors and employees	5,508	3,906
Amortization of loan origination costs into interest expense	762	1,118
Accretion of asset retirement obligations	373	343
(Gain) loss on disposal of property, plant and equipment	113	92
(Earnings) loss from equity method investments	(3,934)	142
Loss on extinguishment of debt	6,233	0
Foreign currency translation	(21)	0
Changes in operating assets and liabilities:
Accounts receivable	20,307	(55,045)
Inventories	(13,502)	(18,475)
Prepaid expenses and other current assets	(4,059)	18
Other assets	(1,682)	1,535
Accounts payable	(890)	20,168
Accrued and other current liabilities	8,284	18,032
Deferred revenues	(1,778)	19,459
Due to sponsor	(7,054)	9,928
Net cash provided by operating activities	187,740	63,073
Investing activities:
Capital expenditures for property, plant and equipment	(66,790)	(108,116)
Proceeds from sale of property, plant and equipment	3,154	8
Cash paid for business acquisition, net of cash acquired	(34,932)	(140,000)
Cash paid for asset acquisition	0	(200,830)
Equity method investments	(8,095)	(4,168)
Net cash used in investing activities	(106,663)	(453,106)
Financing activities:
Proceeds from equity issuances, net	0	412,577
Proceeds from issuance of long-term debt	450,000	0
Repayment of long-term debt	(202,588)	(4,014)
Loan origination costs	(11,425)	0
Affiliate financing, net	0	456
Payment of contingent consideration	(25,000)	0
Proceeds from participants in unit purchase programs	212	438
Repurchase of common units	(9,426)	0
Redemption of common units	(70)	0
Payment of accrued distribution equivalent rights	(398)	(39)
Distributions paid	(112,614)	0
Net cash provided by financing activities	88,691	409,418
Net increase in cash	169,768	19,385
Cash at beginning of period	5,662	4,521
Cash at end of period	175,430	23,906
Non-cash investing and financing activities:
Increase in accounts payable and accrued and other current liabilities for additions to property, plant and equipment	12,849	4,648
Estimated fair value of contingent consideration liability	8,446	14,000
Issuance of units for business acquisition	19,190	0
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	1,595	(106)
Due to sponsor balance converted into non-controlling interest	0	116,417
Cash paid for interest, net of capitalized interest	$ 14,392	$ 7,049

Condensed Consolidated Statem_3

Condensed Consolidated Statement of Partners' Capital - 9 months ended Sep. 30, 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 for business acquisition	19,190		19,190
Issuance of common units to directors and employees	474		474
Repurchase of common units	(9,426)		(9,426)
Redemption of common units	70		70
Unit-based compensation expense	5,152		5,152
Distributions, including distribution equivalent rights	(114,209)	0	(114,209)
Payment in excess of contingent consideration liability	(13,000)		(13,000)
Net income	148,502	0	148,502
Partners' Capital, ending balance at Sep. 30, 2018	$ 832,248	$ 0	$ 832,248

Basis of Presentation and Use o

Basis of Presentation and Use of Estimates	9 Months Ended
	Sep. 30, 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 fully integrated, strategic provider of proppant and logistics solutions to the North American petroleum 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 owns the 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 for additional disclosure regarding the Whitehall Contribution. On July 19, 2018, the Partnership entered into a purchase agreement to acquire FB Industries Inc. ("FB Industries"), a manufacturer and marketer of silo-based frac sand management systems. Under the terms of the transaction, the Partnership, through two of its wholly-owned subsidiaries, paid cash consideration of approximately $55,016 and issued 1,279,328

Significant Accounting Policies

Significant Accounting Policies	9 Months Ended
	Sep. 30, 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 September 30, 2018 and December 31, 2017 , the Partnership maintained an allowance for doubtful accounts of $1,065 and $1,060 , respectively. 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 that 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 September 30, 2018 , the Partnership's carrying value in PropX was $29,504 , 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. The following table provides our capital contributions and proportionate share of PropX's operating results for the three and nine months ended September 30, 2018 and 2017 : Three Months Ended Nine Months Ended September 30, September 30, 2018 2017 2018 2017 Capital contributions $ — $ — $ 8,095 $ 4,168 Earnings (loss) from equity method investments $ 1,624 $ 128 $ 3,934 $ (142 ) 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 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 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 accrued and other current liabilities on our Condensed Consolidated Balance Sheet as of September 30, 2018 . The excess amount of contingent consideration paid during the first quarter of 2018 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. In connection with the acquisition of FB Industries Inc., the agreement contained certain contingent consideration arrangements for a three-year period dependent upon the sale of certain FB silo systems and conveyors. The estimated fair value of the contingent consideration was $8,446 and is recorded as a long-term liability on the Condensed Consolidated Balance Sheet as of September 30, 2018 . Revenue Recognition As of January 1, 2018, we adopted the new accounting standard ASU 2014-09 (ASC Topic 606), Revenue from Contracts with Customers and all the related amendments to all contracts using the full retrospective method. The adoption of ASC Topic 606 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 negotiated 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 frac sand 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, as well as 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 or equipment. These prepayments represent consideration that is unconditional for which we have yet to transfer title to the sand or equipment. Amounts received from customers in advance of product deliveries are recorded as contract liabilities referred to as deferred revenues and recognized as revenue upon delivery of the product. 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 9.50% Senior Notes approximated $418,500 as of September 30, 2018 , based on the market price quoted from external sources, compared with a carrying value of $450,000 . If the 9.50% unsecured senior notes due 2026 (the "Senior Notes") were 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 September 30, 2018 and December 31, 2017 , the Partnership did not have any liabilities for uncertain tax positions or gross unrecognized tax benefits. Foreign currency The Company records foreign currency translation adjustments from the process of translating the functional currency of the financial statements of its foreign subsidiary into the U.S. dollar reporting currency. The Canadian dollar is the functional currency of the Company’s foreign subsidiary as it is the primary currency within the economic environment in which the subsidiary operates. Assets and liabilities of the respective subsidiary’s operations are translated into U.S. dollars at period-end exchange rates, and revenues and expenses are translated into U.S. dollars at average exchange rates in effect during each reporting period. Adjustments resulting from the translation of each subsidiary’s financial statements are reported in other comprehensive income. 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 . In July 2018, the FASB issued ASU 2018-10, Codification Improvements to Topic 842, Leases . The amendments in this update affect narrow aspects of the guidance issued in ASU 2016-02 and is intended to alleviate unintended consequences from applying the new standard. The amendments do not make substantive changes to the core provisions or principles of the new standard and will be considered during our implementation process. In July 2018, the FASB also issued ASU 2018-11, Leases (Topic 842): Targeted Improvements . The amendments in this update provide entities with an optional transition method, which permits an entity to initially apply the new leases standard at the adoption date and recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. In addition, the amendments in this update also provide lessors with a practical expedient (provided certain conditions are met), by class of underlying asset, to not separate the nonlease component(s) from the associated lease component for purposes of income statement presentation.

Acquisitions

Acquisitions	9 Months Ended
	Sep. 30, 2018
Business Combinations [Abstract]
Acquisitions	Acquisitions Acquisition of FB Industries Inc. On August 1, 2018, the Partnership acquired FB Industries Inc., a manufacturer and marketer of silo-based frac sand management systems for $55,016 in cash and issued 1,279,328 of new common units valued at $19,190 , which further diversifies our vertically-integrated provider of frac sand and proppant logistics solution. The terms also include the potential for additional future consideration payments based on the achievement of established performance benchmarks through 2021. The acquisition was accounted for under the acquisition method of accounting whereby management assessed the net assets acquired and recognized amounts for the identified assets acquired and liabilities assumed. The preliminary purchase price of $74,206 was allocated to the net assets acquired as follows: Net assets of FB Industries as of August 1, 2018: Cash $ 20,084 Accounts receivable 3,776 Inventories 13,366 Goodwill and intangible assets 63,589 Prepaid expense and other current assets 2,051 Property, plant and equipment 1,684 Accounts payable (1,784 ) Deferred revenue (9,911 ) Accrued liabilities and other current liabilities (10,203 ) Contingent consideration (8,446 ) Fair value of net assets acquired $ 74,206 The preliminary asset purchase price allocation is based on currently available information. Management is reviewing the valuation of the assets and liabilities acquired, the valuation of the contingent consideration and confirming the results to determine the final asset purchase price allocation, including any working capital adjustment, which is expected to be completed in the fourth quarter of 2018. The recognition of additional long-lived assets acquired, intangible assets or liabilities assumed may be identified as management completes its analysis and additional information is obtained about the facts and circumstances existing as of the asset acquisition date. In connection with this acquisition, the Partnership incurred $616 of transaction costs associated with the acquisition during the nine months ended September 30, 2018. Such costs are included in general and administrative expenses. 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. 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 . During the first quarter of 2018, the Partnership paid $20,000 of contingent consideration with respect to the 2017 measurement period. 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 as of March 15, 2017 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 income (loss), net income (loss) attributable to Hi-Crush Partners LP and net income per limited partner unit giving effect to the Whitehall Contribution, as reconciled to the revenues, net income, net income attributable to Hi-Crush Partners LP and net income per limited partner unit of the Partnership. Nine Months Ended September 30, 2017 Partnership Historical Whitehall and Other Assets through March 15, 2017 Eliminations Partnership Recast (Supplemental) Revenues $ 386,167 $ — $ — $ 386,167 Net income (loss) $ 40,801 $ (1,366 ) $ (79 ) $ 39,356 Net income (loss) attributable to Hi-Crush Partners LP $ 40,827 $ (1,392 ) $ (79 ) $ 39,356 Net income per limited partner unit - basic $ 0.48 $ 0.46

Inventories

Inventories	9 Months Ended
	Sep. 30, 2018
Inventory Disclosure [Abstract]
Inventories	Inventories Inventories consisted of the following: September 30, 2018 December 31, 2017 Raw material $ 667 $ 498 Work-in-process 43,812 18,739 Finished goods 25,761 22,892 Spare parts 2,797 2,143 Inventories $ 73,037 $ 44,272

Property, Plant and Equipment

Property, Plant and Equipment	9 Months Ended
	Sep. 30, 2018
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	Property, Plant and Equipment Property, plant and equipment consisted of the following: September 30, 2018 December 31, 2017 Buildings $ 24,329 $ 21,532 Mining property and mine development 390,163 381,653 Plant and equipment 404,229 389,197 Rail and rail equipment 55,913 55,783 Transload and last-mile facilities and equipment 126,576 121,522 Construction-in-progress 65,281 14,454 Property, plant and equipment 1,066,491 984,141 Less: Accumulated depreciation and depletion (115,333 ) (84,983 ) Property, plant and equipment, net $ 951,158 $ 899,158 The Partnership recognized a loss on the disposal of fixed assets of $110 and $113 during the three and nine months ended September 30, 2018 , respectively, and a loss of $100 and $92 during the three and nine months ended September 30, 2017

Long-Term Debt

Long-Term Debt	9 Months Ended
	Sep. 30, 2018
Debt Disclosure [Abstract]
Long-Term Debt	Long-Term Debt Long-term debt consisted of the following: September 30, 2018 December 31, 2017 Senior Notes due 2026 $ 450,000 $ — ABL Credit Agreement — — Term Loan Credit Facility — 200,000 Other notes payable 4,142 3,054 Less: Unamortized original issue discount — (1,992 ) Less: Unamortized debt issuance costs (9,378 ) (3,643 ) Total debt 444,764 197,419 Less: current portion of long-term debt (790 ) (2,957 ) Long-term debt $ 443,974 $ 194,462 Senior Notes due 2026 On August 1, 2018, the Partnership completed the private placement of $450,000 aggregate principal amount of its 9.50% senior unsecured notes due 2026 (the "Senior Notes"). The Senior Notes were issued under and are governed by an indenture, dated as of August 1, 2018 (the "Indenture"), by and among the Partnership, the guarantors named therein (the "Guarantors"), and U.S. Bank National Association, as trustee. The Senior Notes are fully and unconditionally guaranteed (the "Guarantees"), jointly and severally, on a senior unsecured basis by the Guarantors. The Indenture contains customary terms, events of default and covenants relating to, among other things, the incurrence of debt, the payment of dividends or similar restricted payments, undertaking transactions with the Partnership’s unrestricted affiliates, and limitations on asset sales. The Senior Notes bear interest at an annual rate of 9.50% and are payable semi-annually. At any time prior to August 1, 2021, the Partnership may redeem up to 35% of the aggregate principal amount of the Senior Notes at a redemption price equal to 109.50% of the principal amount, plus accrued and unpaid interest, if any, to the redemption date, with an amount of cash not greater than the net proceeds from certain equity offerings. At any time prior to August 1, 2021, the Partnership may redeem the Senior Notes, in whole or in part, at a redemption price equal to 100% of the principal amount of the Senior Notes plus a "make-whole" premium plus accrued and unpaid interest, if any, to the redemption date. The Partnership may also redeem all or a part of the Senior Notes at any time on or after August 1, 2021, at the redemption prices set forth in the Indenture, plus accrued and unpaid interest, if any, to the redemption date. If the Partnership experiences a change of control, the Partnership may be required to offer to purchase the Senior Notes at a purchase price equal to 101% of the principal amount, plus accrued and unpaid interest, if any, to the purchase date. The Senior Notes and the Guarantees rank equally in right of payment with all of the Partnership’s and the Guarantors’ existing and future senior indebtedness, effectively junior to all of the Partnership’s existing and future secured indebtedness, including borrowings the ABL Credit Agreement, to the extent of the value of the assets securing such indebtedness, structurally junior to any indebtedness of the Partnership’s subsidiaries that do not guarantee the Senior Notes (including trade payables), and senior to all of the Partnership’s and the Guarantors’ future subordinated indebtedness. As of September 30, 2018 , we had $440,622 of indebtedness ( $450,000 , net of $9,378 of debt issuance costs) under our Senior Notes. ABL Credit Agreement On August 1, 2018, the Partnership, entered into a senior secured revolving credit facility (the "ABL Credit Agreement"), which matures on August 1, 2023 , among the Partnership, as borrower, the lenders party thereto from time to time, and JP Morgan Chase Bank, N.A., as administrative agent and an issuing lender, and each other issuing lender party thereto. The ABL Credit Agreement permits aggregate borrowings of up to $200,000 , including a $50,000 sublimit for letters of credit, with the ability to increase the amount of permitted aggregate borrowings up to $300,000 subject to certain conditions. As of September 30, 2018 , we had $97,731 of available borrowing capacity ( $119,151 , net of $21,420 letter of credit commitments) and no indebtedness under our ABL Credit Agreement. The obligations of the Partnership under the ABL Credit Agreement are secured by substantially all assets of the Partnership (other than real estate and other customary exclusions). In addition, the Partnership’s subsidiaries guarantee the Partnership’s obligations under the ABL Credit Agreement and grant to the administrative agent security interests in substantially all of their respective assets (other than real estate and other customary exclusions). Borrowings under the ABL 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 0.75% per annum and 1.50% per annum, based upon the Partnership’s leverage ratio, or (2) a LIBOR rate plus an applicable margin ranging between 1.75% per annum and 2.50% per annum, based upon the Partnership’s leverage ratio. The ABL 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 certain limited circumstances, the ABL Credit Agreement requires compliance with a fixed charge coverage ratio. In addition, it contains customary events of default that entitle the lenders to cause any or all of the Partnership’s indebtedness under the ABL 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 September 30, 2018 , the Partnership was in compliance with all covenants in the ABL Credit Agreement. Revolving Credit Agreement On December 22, 2017, the Partnership entered into a second amended and restated credit agreement (the "Revolving Credit Agreement"). On August 1, 2018, upon execution of the ABL Credit Agreement described above, the Revolving Lenders commitments under the Revolving Credit Agreement were terminated and the outstanding liabilities of the Partnership with respect to its obligations under the Revolving Credit Agreement were released and discharged. The Partnership had no outstanding loans under the Revolving Credit Agreement. In connection with the termination of the Revolving Credit Agreement, the Partnership recognized a $1,062 loss on extinguishment of debt, which represents the write-off of all remaining unamortized debt issuance costs. 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. On August 1, 2018, in connection with the closing of the Senior Notes, the Partnership repaid its outstanding debt, including accrued interest, under the Term Loan Credit Facility. The payment was made prior to the maturity date and no early payment penalties were incurred by the Partnership. In connection with the termination of the Term Loan Credit Facility, the Partnership recognized a $5,171 loss on extinguishment of debt, which represents the write-off of all remaining unamortized debt issuance costs and unamortized original issuance discount. 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 each of 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. To obtain additional mineral rights on the previously acquired land, the Partnership issued a 4th three-year promissory note in August 2018 in the amount of $3,676 , which will be prepaid on a quarterly basis during the three-year term as sand is extracted, delivered, sold, and paid for from the properties. The Partnership made prepayments of $663 and $1,032 during the three months ended September 30, 2018 and 2017 , respectively, and $2,588 and $2,514 during the nine months ended September 30, 2018 and 2017 , respectively, based on the accumulated volume of sand extracted, delivered, sold and paid for. In October 2018, the Partnership made a prepayment of $790 based on the volume of sand extracted, delivered, sold and paid for through the third quarter of 2018 . As of September 30, 2018 , the Partnership had repaid in full the promissory notes due in October 2017 and December 2018 and had $4,142 outstanding on its remaining 3rd and 4th promissory notes, which carried interest rates between 0.74% and 2.42%

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 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 September 30, 2018 , no payments for non-delivery of minimum annual sand volumes have been made by the Partnership to customers under these contracts. Supplier Contracts A subsidiary of the Partnership has entered into a long-term supply agreement with a supplier, which contemplates the purchase of certain volumes and grades of sands at specified prices. 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 $4,243 and $5,447 for the three months ended September 30, 2018 and 2017 , respectively, and $12,861 and $13,085 for the nine months ended September 30, 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 September 30, 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 September 30, 2018 , the Partnership has paid $3,085 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 September 30, 2018 , future minimum operating lease payments and minimum purchase commitments are as follows: Fiscal Year Operating Leases Minimum Purchase Commitments 2018 (remaining months) $ 9,325 $ 1,780 2019 37,492 4,579 2020 34,681 2,377 2021 27,647 2,344 2022 19,871 2,344 Thereafter 35,580 1,890 $ 164,596 $ 15,314 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 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 September 30, 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 (a) Minimum Maximum Current Estimated Fair Value -10% Adjusted EBITDA +10% Adjusted EBITDA Blair Contribution $ 3,000 $ — $ 5,000 $ — $ 2,398 $ — Whitehall Contribution $ 4,000 $ — $ 45,000 $ — $ — $ — (a) Reflected in accrued and other current liabilities on our Condensed Consolidated Balance Sheet as of September 30, 2018 . In connection with the acquisition of FB Industries Inc., the agreement contained certain contingent consideration arrangements from the date of closing to December 31, 2021, dependent upon leases or sales of certain FB silo systems or conveyors. As of the acquisition date, the estimated fair value of the contingent consideration was $8,446 and is recorded as other liabilities on the Condensed Consolidated Balance sheet as of September 30, 2018. The estimated fair value assumes only leases are entered into during this period. A 10% increase or decrease in the assumed quantity of leases would result in an increase of $2,110 or a decrease of $1,805 , respectively, in the fair value of the contingent consideration. Conversely, a 50% shift in the assumed quantity of leases to sales of silo systems and conveyors would reduce the contingent consideration to $3,289 . Litigation

Equity

Equity	9 Months Ended
	Sep. 30, 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 September 30, 2018 , our management team, together with our general partner's board of directors have a 10% direct ownership interest in our limited partnership units. In addition, our sponsor is the owner of our general partner. On August 1, 2018, the Partnership issued 1,279,328 of common units as additional consideration for the FB Industries acquisition. During the nine months ended September 30, 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 $412,577 . 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 Nine Months Ended September 30, September 30, 2018 2017 2018 2017 Number of units purchased — — 753,090 — Average price paid per unit including commission $ — $ — $ 12.52 $ — Total cost $ — $ — $ 9,426 $ — As of September 30, 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 and nine months ended September 30, 2018 , $7,664 was allocated to the holder of our incentive distribution rights. During the three and nine months ended September 30, 2017 , no income was allocated to the holder of our 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 the holder of our 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 the Holder 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 $ — July 20, 2018 $ 0.7500 August 3, 2018 August 14, 2018 $ 67,253 $ 7,664 October 21, 2018 $ 0.2250 November 1, 2018 November 14, 2018 $ 22,695 $ — (a) The distribution to be paid November 14, 2018 is calculated based on the units outstanding as of October 25, 2018. 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 Nine Months Ended September 30, September 30, 2018 2017 2018 2017 Basic common units outstanding 89,277,833 91,030,558 88,848,290 85,277,011 Potentially dilutive common units 1,536,881 997,066 1,536,881 997,066 Diluted common units outstanding 90,814,714 92,027,624 90,385,171 86,274,077 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 and nine months ended September 30, 2018 includes the dilutive effect of all 1,536,881 phantom units granted and outstanding at the assumed number of units which would have vested if the performance period had ended on September 30, 2018 . Diluted earnings per unit for the three and nine months ended September 30, 2017 includes the dilutive effect of all 997,066 phantom units, granted and outstanding at the assumed number of units which would have vested if the performance period had ended on September 30, 2017 . 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 holder 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 and the assumed allocation of net income under the two-class method for purposes of computing net income per limited partner unit for the three and nine months ended September 30, 2018 and 2017 : Three Months Ended September 30, 2018 General Partner and IDRs Limited Partner Units Total Declared distribution $ — $ 22,695 $ 22,695 Assumed allocation of distribution in excess of earnings — 3,850 3,850 Assumed allocation of net income $ — $ 26,545 $ 26,545 Earnings per limited partner unit - basic $ 0.30 Earnings per limited partner unit - diluted $ 0.29 Three Months Ended September 30, 2017 General Partner and IDRs Limited Partner Units Total Declared distribution $ — $ 13,655 $ 13,655 Assumed allocation of earnings in excess of distribution — 16,152 16,152 Assumed allocation of net income $ — $ 29,807 $ 29,807 Earnings per limited partner unit - basic $ 0.33 Earnings per limited partner unit - diluted $ 0.32 Nine Months Ended September 30, 2018 General Partner and IDRs Limited Partner Units Total Declared distribution $ 7,664 $ 109,836 $ 117,500 Assumed allocation of earnings in excess of distributions (7,228 ) 38,230 31,002 Assumed allocation of net income $ 436 $ 148,066 $ 148,502 Earnings per limited partner unit - basic $ 1.67 Earnings per limited partner unit - diluted $ 1.64 Nine Months Ended September 30, 2017 General Partner and IDRs Limited Partner Units Total Declared distribution $ — $ 13,655 $ 13,655 Assumed allocation of earnings in excess of distributions — 25,701 25,701 Add back recast losses attributable to Whitehall and Other Assets through March 15, 2017 — 1,471 1,471 Assumed allocation of net income $ — $ 40,827 $ 40,827 Earnings per limited partner unit - basic $ 0.48 Earnings per limited partner unit - diluted $ 0.47

Unit-Based Compensation

Unit-Based Compensation	9 Months Ended
	Sep. 30, 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, canceled, 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 (60,528 ) $ 32.45 Granted 1,104 $ 15.25 Forfeited (6,193 ) $ 33.93 Outstanding at September 30, 2018 280,524 $ 10.20 As of September 30, 2018 , total compensation expense not yet recognized related to unvested PPUs was $945,972 , with a weighted average remaining service period of 0.9 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 (239,799 ) $ 14.61 Granted 498,147 $ 10.21 Forfeited (38,583 ) $ 9.61 Outstanding at September 30, 2018 1,256,357 $ 10.02 As of September 30, 2018 , total compensation expense not yet recognized related to unvested TPUs was $8,782,321 , 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 nine months ended September 30, 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 298,000 common units. As of September 30, 2018 , total accumulated contributions of $425 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 Nine Months Ended September 30, September 30, 2018 2017 2018 2017 Performance Phantom Units $ 343 $ 373 $ 1,028 $ 1,121 Time-Based Phantom Units 1,335 714 3,824 1,993 Director and other unit grants 119 124 356 375 Unit Purchase Programs 100 298 300 417 Total compensation expense $ 1,897 $ 1,509 $ 5,508 $ 3,906

Revenues

Revenues	9 Months Ended
	Sep. 30, 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 stand-alone 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 Nine Months Ended September 30, September 30, 2018 2017 2018 2017 Sales to contract customers $ 157,819 $ 114,901 $ 508,832 $ 263,059 Spot sales 19,766 52,572 72,940 122,864 Frac sand sales revenues 177,585 167,473 581,772 385,923 Other revenues 36,387 110 98,833 244 Total revenues $ 213,972 $ 167,583 $ 680,605 $ 386,167 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 September 30, 2018 , the Partnership has recorded a total liability of $23,081 for prepayments of future deliveries of frac sand. Some prepayments are refundable in the event that the Partnership is unable to meet the minimum requirements under certain contracts. We expect to recognize these revenues over the next 1.9 years . Changes in deferred revenues consisted of the following: Balance at December 31, 2017 $ 11,783 Collection of prepayments 10,076 Revenues recognized (8,689 ) Customer payments acquired in purchase of FB Industries Inc. 9,911 Balance at September 30, 2018 $ 23,081

Related Party Transactions

Related Party Transactions	9 Months Ended
	Sep. 30, 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 September 30, 2018 and 2017 , the Partnership incurred $2,299 and $1,375 , respectively, of management and administrative service expenses from Hi-Crush Services. During the nine months ended September 30, 2018 and 2017 , the Partnership incurred $6,805 and $3,968 , 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 September 30, 2018 , an outstanding balance of $5,345 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 September 30, 2018 and December 31, 2017 , the Partnership purchased $9,835 and $6,593 , respectively, of equipment from PropX, which is reflected in property, plant and equipment. As of September 30, 2018 and December 31, 2017 , the Partnership had accounts payable and accrued expenses of $709 and $1,273 , respectively, to PropX, which is reflected in accounts payable and accrued and other current liabilities on our Condensed Consolidated Balance Sheet. In addition to equipment purchases, during the three months ended September 30, 2018 and 2017 , we incurred $1,620 and $539 , respectively, of lease expense for the use of PropX equipment, which is reflected in cost of goods sold. During the nine months ended September 30, 2018 and 2017 , we incurred $3,709 and $1,205 , respectively, of lease expense for the use of PropX equipment, which is reflected in cost of goods sold. During the first quarter of 2018, we made a lease prepayment of $3,211 for the use of PropX equipment. During the three and nine months ended September 30, 2018 and 2017

Segment Reporting

Segment Reporting	9 Months Ended
	Sep. 30, 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	9 Months Ended
	Sep. 30, 2018
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Distributions On October 21, 2018 , our general partner's board of directors declared a cash distribution for the third quarter of 2018 totaling $22,695 , or $0.225 per common unit. This distribution will be paid on November 14, 2018 to unitholders of record on November 1, 2018 . Buyout of Sponsor On October 21, 2018, the Partnership entered into a Contribution Agreement (the “Contribution Agreement”) with our sponsor, Hi-Crush Augusta Acquisition Co. LLC and certain persons (the “Contributor Parties”) collectively holding all of the then outstanding membership interests in the sponsor (collectively, the “Subject Units”). Pursuant to the Contribution Agreement, among other things, (i) the Contributor Parties agreed to contribute the Subject Units to the Partnership in exchange for an aggregate of 11.0 million common units issued by the Partnership (such contributions, collectively, the “Sponsor Contribution”) valued at $96.3 million , (ii) all of the outstanding incentive distribution rights representing limited partnership interests in the Partnership (the “IDRs”) were canceled and extinguished and (iii) the sponsor waived any and all rights to receive earnout payments from the Partnership or our subsidiaries pursuant to certain previously entered into contribution agreements to which it was a party. In connection with the Sponsor Contribution, Robert E. Rasmus was appointed Chairman of the Board and six members of the Board of Directors previously appointed by Avista Capital Partners resigned. First Amendment to Credit Agreement On October 18, 2018, the Partnership entered into the First Amendment to Credit Agreement (the “ABL Amendment”) by and among the Partnership, the lenders party thereto and JPMorgan Chase Bank, N.A., as administrative agent for the lenders. Pursuant to the ABL Amendment, (i) the definition of “Change in Control” was revised to reflect that the Partnership’s direct or indirect ownership of our general partner as contemplated by the Contribution Agreement did not cause a Change in Control and (ii) solely in connection with the Sponsor Contribution, the administrative agent and required lenders waived compliance with certain covenants and any defaults or event of defaults arising therefrom. Third Amendment to Registration Rights Agreement On October 21, 2018, the Partnership entered into the Third Amendment to the Registration Rights Agreement (the “RRA Amendment”) by and between the Partnership and the Contributor Parties. Pursuant to the RRA Amendment, the definition of “Registrable Securities” set forth in the Registration Rights Agreement, dated August 20, 2012, by and between the Partnership and the sponsor was revised to incorporate common units representing limited partner interests issued pursuant to the Contribution Agreement. Partnership Agreement Amendment

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 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 September 30, 2018 and December 31, 2017 , the Partnership maintained an allowance for doubtful accounts of $1,065 and $1,060 , respectively.
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 that 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 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 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 and Deferred Revenues	Revenue Recognition As of January 1, 2018, we adopted the new accounting standard ASU 2014-09 (ASC Topic 606), Revenue from Contracts with Customers and all the related amendments to all contracts using the full retrospective method. The adoption of ASC Topic 606 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 negotiated 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 frac sand 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, as well as 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
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 9.50% Senior Notes approximated $418,500 as of September 30, 2018 , based on the market price quoted from external sources, compared with a carrying value of $450,000 . If the 9.50%
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.
Foreign Currency Disclosure	Foreign currencyThe Company records foreign currency translation adjustments from the process of translating the functional currency of the financial statements of its foreign subsidiary into the U.S. dollar reporting currency. The Canadian dollar is the functional currency of the Company’s foreign subsidiary as it is the primary currency within the economic environment in which the subsidiary operates. Assets and liabilities of the respective subsidiary’s operations are translated into U.S. dollars at period-end exchange rates, and revenues and expenses are translated into U.S. dollars at average exchange rates in effect during each reporting period. Adjustments resulting from the translation of each subsidiary’s financial statements are reported in other comprehensive income.
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 . In July 2018, the FASB issued ASU 2018-10, Codification Improvements to Topic 842, Leases . The amendments in this update affect narrow aspects of the guidance issued in ASU 2016-02 and is intended to alleviate unintended consequences from applying the new standard. The amendments do not make substantive changes to the core provisions or principles of the new standard and will be considered during our implementation process. In July 2018, the FASB also issued ASU 2018-11, Leases (Topic 842): Targeted Improvements . The amendments in this update provide entities with an optional transition method, which permits an entity to initially apply the new leases standard at the adoption date and recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. In addition, the amendments in this update also provide lessors with a practical expedient (provided certain conditions are met), by class of underlying asset, to not separate the nonlease component(s) from the associated lease component for purposes of income statement presentation.

Significant Accounting Polici_3

Significant Accounting Policies (Tables)	9 Months Ended
	Sep. 30, 2018
Accounting Policies [Abstract]
Equity Method Investments	The following table provides our capital contributions and proportionate share of PropX's operating results for the three and nine months ended September 30, 2018 and 2017 : Three Months Ended Nine Months Ended September 30, September 30, 2018 2017 2018 2017 Capital contributions $ — $ — $ 8,095 $ 4,168 Earnings (loss) from equity method investments $ 1,624 $ 128 $ 3,934 $ (142 )

Acquisitions (Tables)

Acquisitions (Tables)	9 Months Ended
	Sep. 30, 2018
Business Combinations [Abstract]
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 as of March 15, 2017 of contingent consideration payable in the future. During the first quarter of 2018, the Partnership paid $20,000 $74,206 was allocated to the net assets acquired as follows: Net assets of FB Industries as of August 1, 2018: Cash $ 20,084 Accounts receivable 3,776 Inventories 13,366 Goodwill and intangible assets 63,589 Prepaid expense and other current assets 2,051 Property, plant and equipment 1,684 Accounts payable (1,784 ) Deferred revenue (9,911 ) Accrued liabilities and other current liabilities (10,203 ) Contingent consideration (8,446 ) Fair value of net assets acquired $ 74,206
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
Business Acquisition, Recast Financial Information	The following table presents, on a supplemental basis, our recast revenues, net income (loss), net income (loss) attributable to Hi-Crush Partners LP and net income per limited partner unit giving effect to the Whitehall Contribution, as reconciled to the revenues, net income, net income attributable to Hi-Crush Partners LP and net income per limited partner unit of the Partnership. Nine Months Ended September 30, 2017 Partnership Historical Whitehall and Other Assets through March 15, 2017 Eliminations Partnership Recast (Supplemental) Revenues $ 386,167 $ — $ — $ 386,167 Net income (loss) $ 40,801 $ (1,366 ) $ (79 ) $ 39,356 Net income (loss) attributable to Hi-Crush Partners LP $ 40,827 $ (1,392 ) $ (79 ) $ 39,356 Net income per limited partner unit - basic $ 0.48 $ 0.46

Inventories (Tables)

Inventories (Tables)	9 Months Ended
	Sep. 30, 2018
Inventory Disclosure [Abstract]
Components of Inventories	Inventories consisted of the following: September 30, 2018 December 31, 2017 Raw material $ 667 $ 498 Work-in-process 43,812 18,739 Finished goods 25,761 22,892 Spare parts 2,797 2,143 Inventories $ 73,037 $ 44,272

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	9 Months Ended
	Sep. 30, 2018
Property, Plant and Equipment [Abstract]
Components of Property, Plant and Equipment	Property, plant and equipment consisted of the following: September 30, 2018 December 31, 2017 Buildings $ 24,329 $ 21,532 Mining property and mine development 390,163 381,653 Plant and equipment 404,229 389,197 Rail and rail equipment 55,913 55,783 Transload and last-mile facilities and equipment 126,576 121,522 Construction-in-progress 65,281 14,454 Property, plant and equipment 1,066,491 984,141 Less: Accumulated depreciation and depletion (115,333 ) (84,983 ) Property, plant and equipment, net $ 951,158 $ 899,158

Long-Term Debt (Tables)

Long-Term Debt (Tables)	9 Months Ended
	Sep. 30, 2018
Debt Disclosure [Abstract]
Components of Long-Term Debt	Long-term debt consisted of the following: September 30, 2018 December 31, 2017 Senior Notes due 2026 $ 450,000 $ — ABL Credit Agreement — — Term Loan Credit Facility — 200,000 Other notes payable 4,142 3,054 Less: Unamortized original issue discount — (1,992 ) Less: Unamortized debt issuance costs (9,378 ) (3,643 ) Total debt 444,764 197,419 Less: current portion of long-term debt (790 ) (2,957 ) Long-term debt $ 443,974 $ 194,462

Commitments and Contingencies (

Commitments and Contingencies (Tables)	9 Months Ended
	Sep. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Schedule of Contractual Obligations	As of September 30, 2018 , future minimum operating lease payments and minimum purchase commitments are as follows: Fiscal Year Operating Leases Minimum Purchase Commitments 2018 (remaining months) $ 9,325 $ 1,780 2019 37,492 4,579 2020 34,681 2,377 2021 27,647 2,344 2022 19,871 2,344 Thereafter 35,580 1,890 $ 164,596 $ 15,314
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 September 30, 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 (a) Minimum Maximum Current Estimated Fair Value -10% Adjusted EBITDA +10% Adjusted EBITDA Blair Contribution $ 3,000 $ — $ 5,000 $ — $ 2,398 $ — Whitehall Contribution $ 4,000 $ — $ 45,000 $ — $ — $ — (a) Reflected in accrued and other current liabilities on our Condensed Consolidated Balance Sheet as of September 30, 2018

Equity (Tables)

Equity (Tables)	9 Months Ended
	Sep. 30, 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 Nine Months Ended September 30, September 30, 2018 2017 2018 2017 Number of units purchased — — 753,090 — Average price paid per unit including commission $ — $ — $ 12.52 $ — Total cost $ — $ — $ 9,426 $ —
Schedule of Distributions	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 the Holder 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 $ — July 20, 2018 $ 0.7500 August 3, 2018 August 14, 2018 $ 67,253 $ 7,664 October 21, 2018 $ 0.2250 November 1, 2018 November 14, 2018 $ 22,695 $ —
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 Nine Months Ended September 30, September 30, 2018 2017 2018 2017 Basic common units outstanding 89,277,833 91,030,558 88,848,290 85,277,011 Potentially dilutive common units 1,536,881 997,066 1,536,881 997,066 Diluted common units outstanding 90,814,714 92,027,624 90,385,171 86,274,077
Schedule of Net Income Attributable to Limited Partners	The following tables provide a reconciliation of net income and the assumed allocation of net income under the two-class method for purposes of computing net income per limited partner unit for the three and nine months ended September 30, 2018 and 2017 : Three Months Ended September 30, 2018 General Partner and IDRs Limited Partner Units Total Declared distribution $ — $ 22,695 $ 22,695 Assumed allocation of distribution in excess of earnings — 3,850 3,850 Assumed allocation of net income $ — $ 26,545 $ 26,545 Earnings per limited partner unit - basic $ 0.30 Earnings per limited partner unit - diluted $ 0.29 Three Months Ended September 30, 2017 General Partner and IDRs Limited Partner Units Total Declared distribution $ — $ 13,655 $ 13,655 Assumed allocation of earnings in excess of distribution — 16,152 16,152 Assumed allocation of net income $ — $ 29,807 $ 29,807 Earnings per limited partner unit - basic $ 0.33 Earnings per limited partner unit - diluted $ 0.32 Nine Months Ended September 30, 2018 General Partner and IDRs Limited Partner Units Total Declared distribution $ 7,664 $ 109,836 $ 117,500 Assumed allocation of earnings in excess of distributions (7,228 ) 38,230 31,002 Assumed allocation of net income $ 436 $ 148,066 $ 148,502 Earnings per limited partner unit - basic $ 1.67 Earnings per limited partner unit - diluted $ 1.64 Nine Months Ended September 30, 2017 General Partner and IDRs Limited Partner Units Total Declared distribution $ — $ 13,655 $ 13,655 Assumed allocation of earnings in excess of distributions — 25,701 25,701 Add back recast losses attributable to Whitehall and Other Assets through March 15, 2017 — 1,471 1,471 Assumed allocation of net income $ — $ 40,827 $ 40,827 Earnings per limited partner unit - basic $ 0.48 Earnings per limited partner unit - diluted $ 0.47

Unit-Based Compensation (Tables

Unit-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 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 (60,528 ) $ 32.45 Granted 1,104 $ 15.25 Forfeited (6,193 ) $ 33.93 Outstanding at September 30, 2018 280,524 $ 10.20
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 (239,799 ) $ 14.61 Granted 498,147 $ 10.21 Forfeited (38,583 ) $ 9.61 Outstanding at September 30, 2018 1,256,357 $ 10.02
Schedule of Unit-based Compensation Expense	The following table presents total unit-based compensation expense: Three Months Ended Nine Months Ended September 30, September 30, 2018 2017 2018 2017 Performance Phantom Units $ 343 $ 373 $ 1,028 $ 1,121 Time-Based Phantom Units 1,335 714 3,824 1,993 Director and other unit grants 119 124 356 375 Unit Purchase Programs 100 298 300 417 Total compensation expense $ 1,897 $ 1,509 $ 5,508 $ 3,906

Revenues (Tables)

Revenues (Tables)	9 Months Ended
	Sep. 30, 2018
Revenue from Contract with Customer [Abstract]
Disaggregated Revenues	The following table presents our revenues disaggregated by contractual relationships: Three Months Ended Nine Months Ended September 30, September 30, 2018 2017 2018 2017 Sales to contract customers $ 157,819 $ 114,901 $ 508,832 $ 263,059 Spot sales 19,766 52,572 72,940 122,864 Frac sand sales revenues 177,585 167,473 581,772 385,923 Other revenues 36,387 110 98,833 244 Total revenues $ 213,972 $ 167,583 $ 680,605 $ 386,167
Changes in Deferred Revenues	Changes in deferred revenues consisted of the following: Balance at December 31, 2017 $ 11,783 Collection of prepayments 10,076 Revenues recognized (8,689 ) Customer payments acquired in purchase of FB Industries Inc. 9,911 Balance at September 30, 2018 $ 23,081

Basis of Presentation and Use_2

Basis of Presentation and Use of Estimates - Narrative (Details) - USD ($) $ in Thousands	Aug. 01, 2018	Mar. 15, 2017	Sep. 30, 2018	Sep. 30, 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			$ 34,932	$ 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
FB Industries
Business Acquisition [Line Items]
Payments to acquire business	$ 55,016
Business acquisition, contingent consideration period	3 years
FB Industries | Common Units
Business Acquisition [Line Items]
Issuance of units for a business acquisition (in units)	1,279,328

Significant Accounting Polici_4

Significant Accounting Policies - Equity Method Investments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Schedule of Equity Method Investments [Line Items]
Capital contributions			$ 8,095	$ 4,168
Earnings (loss) from equity method investments	$ 1,624	$ 128	3,934	(142)
Proppant Express Investments, LLC
Schedule of Equity Method Investments [Line Items]
Capital contributions	0	0	8,095	4,168
Earnings (loss) from equity method investments	$ 1,624	$ 128	$ 3,934	$ (142)

Significant Accounting Polici_5

Significant Accounting Policies - Narrative (Details) - USD ($) $ in Thousands		Aug. 01, 2018	Mar. 15, 2017	Aug. 31, 2016	Mar. 31, 2018	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Accounting Policies [Abstract]
Allowance for doubtful accounts						$ 1,065		$ 1,060
Schedule of Equity Method Investments [Line Items]
Equity method investment in PropX						29,504		17,475
Payment of contingent consideration						25,000	$ 0
Payment in excess of contingent consideration liability					$ 13,000	$ 13,000
Line of Credit Facility [Line Items]
Standard collection terms						30 days
Unsecured Debt | Senior Unsecured Notes Due 2026
Line of Credit Facility [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		9.50%
Fair value of Senior Notes						$ 418,500
Carrying value of long term debt						450,000		$ 0
Proppant Express Investments, LLC
Schedule of Equity Method Investments [Line Items]
Equity method investment in PropX						$ 29,504
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
Hi-Crush Blair LLC
Schedule of Equity Method Investments [Line Items]
Business acquisition, maximum contingent consideration to pay				$ 10,000		$ 5,000
Original estimated fair value of contingent consideration liability				$ 5,000
Payment of contingent consideration					5,000
Remaining estimated fair value of contingent consideration	[1]					3,000
Business acquisition, contingent consideration period				2 years
Hi-Crush Whitehall LLC and Other Assets
Schedule of Equity Method Investments [Line Items]
Business acquisition, maximum contingent consideration to pay			$ 65,000			45,000
Original estimated fair value of contingent consideration liability			$ 14,000
Payment of contingent consideration					$ 20,000
Remaining estimated fair value of contingent consideration	[1]					$ 4,000
Business acquisition, contingent consideration period			2 years
FB Industries
Schedule of Equity Method Investments [Line Items]
Business acquisition, contingent consideration period		3 years
Contingent consideration		$ (8,446)
[1]	Reflected in accrued and other current liabilities on our Condensed Consolidated Balance Sheet as of September 30, 2018

Acquisitions - Narrative (Detai

Acquisitions - Narrative (Details) $ in Thousands	Aug. 01, 2018USD ($)shares	Mar. 15, 2017USD ($)	Mar. 03, 2017USD ($)ashares	Mar. 31, 2018USD ($)	Sep. 30, 2018USD ($)	Sep. 30, 2017USD ($)	Dec. 31, 2017USD ($)
Business Acquisition [Line Items]
Payments to acquire business					$ 34,932	$ 140,000
Issuance of common units for business acquisition					19,190	0
Payment of contingent consideration					25,000	$ 0
Permian Basin Sand Company, LLC
Business Acquisition [Line Items]
Cash paid to sellers			$ 200,000
Issuance of common units for asset acquisition			$ 62,242
Acres of frac sand reserve acquired | a			1,226
Cost of Permian Basin Sand acquisition			$ 263,072
Common Units | Permian Basin Sand Company, LLC
Business Acquisition [Line Items]
Issuance of units for an asset acquisition (in units) | shares			3,438,789
FB Industries
Business Acquisition [Line Items]
Payments to acquire business	$ 55,016
Issuance of common units for business acquisition	19,190
Total payments to acquire business	$ 74,206
Acquisition related costs					616
Business acquisition, contingent consideration period	3 years
FB Industries | Common Units
Business Acquisition [Line Items]
Issuance of units for a business acquisition (in units) | shares	1,279,328
Hi-Crush Whitehall LLC and Other Assets
Business Acquisition [Line Items]
Payments to acquire business		$ 140,000
Total payments to acquire business		154,000
Acquisition related costs							$ 588
Business acquisition, maximum contingent consideration to pay		$ 65,000			$ 45,000
Business acquisition, contingent consideration period		2 years
Business acquisition, contingent consideration, value per each threshold		$ 20,000
Business acquisition, contingent consideration, value per cumulative period threshold		25,000
Original estimated fair value of contingent consideration liability		$ 14,000
Payment of contingent consideration				$ 20,000

Acquisitions - Carrying value o

Acquisitions - Carrying value of FB Industries assets and allocation of purchase price (Details) - FB Industries $ in Thousands	Aug. 01, 2018USD ($)
Business Acquisition [Line Items]
Cash	$ 20,084
Accounts receivable	3,776
Inventories	13,366
Goodwill and intangible assets	63,589
Prepaid expenses and other current assets	2,051
Property, plant and equipment	1,684
Accounts payable	(1,784)
Deferred revenue	(9,911)
Accrued liabilities and other current liabilities	(10,203)
Contingent consideration	(8,446)
Total carrying value of net assets	$ 74,206

Acquisitions - Summary of total

Acquisitions - Summary of total purchase consideration for Permian Basin Sand Acquisition (Details) - Permian Basin Sand Company, LLC $ in Thousands	Mar. 03, 2017USD ($)
Business Acquisition [Line Items]
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_2

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	Sep. 30, 2018	Sep. 30, 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
Original estimated fair value of contingent consideration liability		$ 14,000
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 as of March 15, 2017 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		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Business Acquisition [Line Items]
Revenues	$ 213,972	$ 167,583	$ 680,605	$ 386,167
Net income (loss)				39,356
Net income (loss) attributable to Hi-Crush Partners LP	$ 26,545	$ 29,807	$ 148,502	$ 39,356
Net income per limited partner unit - basic (usd per unit)	$ 0.30	$ 0.33	$ 1.67	$ 0.48
Net income per limited partner unit - basic, pro forma (usd per unit)				$ 0.46
Historical
Business Acquisition [Line Items]
Revenues				$ 386,167
Net income (loss)				40,801
Net income (loss) attributable to Hi-Crush Partners LP				40,827
Adjustment | Eliminations
Business Acquisition [Line Items]
Revenues				0
Net income (loss)				(79)
Net income (loss) attributable to Hi-Crush Partners LP				(79)
Hi-Crush Whitehall LLC and Other Assets | Adjustment
Business Acquisition [Line Items]
Revenues				0
Net income (loss)				(1,366)
Net income (loss) attributable to Hi-Crush Partners LP				$ (1,392)

Inventories - Components of Inv

Inventories - Components of Inventories (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Inventory Disclosure [Abstract]
Raw material	$ 667	$ 498
Work-in-process	43,812	18,739
Finished goods	25,761	22,892
Spare parts	2,797	2,143
Inventories	$ 73,037	$ 44,272

Property, Plant and Equipment -

Property, Plant and Equipment - Components of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 1,066,491	$ 984,141
Less: Accumulated depreciation and depletion	(115,333)	(84,983)
Property, plant and equipment, net	951,158	899,158
Buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment	24,329	21,532
Mining property and mine development
Property, Plant and Equipment [Line Items]
Property, plant and equipment	390,163	381,653
Plant and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment	404,229	389,197
Rail and rail equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment	55,913	55,783
Transload and last-mile facilities and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment	126,576	121,522
Construction-in-progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 65,281	$ 14,454

Property, Plant and Equipment_2

Property, Plant and Equipment - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Property, Plant and Equipment [Abstract]
Gain (loss) on disposal of fixed assets	$ (110)	$ (100)	$ (113)	$ (92)

Long-Term Debt - Components of

Long-Term Debt - Components of Long-Term Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Total debt	$ 444,764	$ 197,419
Less: current portion of long-term debt	(790)	(2,957)
Long-term debt	443,974	194,462
$200M Term Loan Credit Facility | Term Loan Credit Facility
Debt Instrument [Line Items]
Partnership debt	0	200,000
Less: Unamortized original issue discount		(1,992)
Less: Unamortized debt issuance costs		(3,643)
Unsecured Debt | Senior Unsecured Notes Due 2026
Debt Instrument [Line Items]
Partnership debt	450,000	0
Less: Unamortized original issue discount	0
Less: Unamortized debt issuance costs	(9,378)
Total debt	440,622
Revolving Credit Facility | $200M ABL Facility
Debt Instrument [Line Items]
Partnership debt	0	0
Other notes payable
Debt Instrument [Line Items]
Partnership debt	$ 4,142	$ 3,054

Long-Term Debt - Narrative (Det

Long-Term Debt - Narrative (Details) - USD ($)

Aug. 01, 2018

Aug. 31, 2016

Oct. 31, 2018

Sep. 30, 2018

Sep. 30, 2017

Sep. 30, 2018

Sep. 30, 2017

Dec. 31, 2016

Dec. 31, 2015

Dec. 31, 2014

Aug. 31, 2018

Dec. 31, 2017

Dec. 22, 2017

Line of Credit Facility [Line Items]

Partnership debt

$ 444,764,000

$ 444,764,000

$ 197,419,000

Letter of credit commitments

21,420,000

21,420,000

Loss on extinguishment of debt

(6,233,000)

$ 0

(6,233,000)

$ 0

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

4,142,000

4,142,000

3,054,000

Prepayments made by Partnership on promissory notes

$ 663,000

$ 1,032,000

$ 2,588,000

$ 2,514,000

Other notes payable | Subsequent Event

Line of Credit Facility [Line Items]

Prepayments made by Partnership on promissory notes

$ 790,000

Other notes payable | Minimum

Line of Credit Facility [Line Items]

Effective interest rate

0.74%

0.74%

Other notes payable | Maximum

Line of Credit Facility [Line Items]

Effective interest rate

2.42%

2.42%

Senior Unsecured Notes Due 2026 | Unsecured Debt

Line of Credit Facility [Line Items]

Debt Instrument, Face Amount

$ 450,000

$ 450,000

Debt Instrument, Interest Rate, Stated Percentage

9.50%

Partnership debt

440,622,000

440,622,000

Carrying value of long term debt

450,000,000

450,000,000

0

Unamortized debt issuance costs in long-term debt

9,378,000

9,378,000

$200M ABL Facility | Revolving Credit Facility

Line of Credit Facility [Line Items]

Carrying value of long term debt

0

0

0

Line of credit facility, current borrowing capacity

$ 200,000,000

Line of credit facility, maximum borrowing capacity

300,000,000

119,151,000

119,151,000

Undrawn borrowing capacity

97,731,000

$ 97,731,000

$200M ABL Facility | Revolving Credit Facility | Base rate | Minimum

Line of Credit Facility [Line Items]

Interest rate basis points of credit facility

0.75%

$200M ABL Facility | Revolving Credit Facility | Base rate | Maximum

Line of Credit Facility [Line Items]

Interest rate basis points of credit facility

1.50%

$200M ABL Facility | Revolving Credit Facility | Eurodollar | Minimum

Line of Credit Facility [Line Items]

Interest rate basis points of credit facility

1.75%

$200M ABL Facility | Revolving Credit Facility | Eurodollar | Maximum

Line of Credit Facility [Line Items]

Interest rate basis points of credit facility

2.50%

$200M ABL Facility | Letter of Credit

Line of Credit Facility [Line Items]

Line of credit facility, maximum borrowing capacity

$ 50,000,000

$125M Revolving Credit Agreement | Revolving Credit Facility

Line of Credit Facility [Line Items]

Loss on extinguishment of debt

(1,062,000)

$200M Term Loan Credit Facility | Term Loan Credit Facility

Line of Credit Facility [Line Items]

Carrying value of long term debt

0

$ 0

200,000,000

Unamortized debt issuance costs in long-term debt

$ 3,643,000

Line of credit facility, maximum borrowing capacity

$ 200,000,000

Loss on extinguishment of debt

$ (5,171,000)

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

Promissory Note Due In August 2021 | Other notes payable

Line of Credit Facility [Line Items]

Partnership debt

$ 3,676,000

Terms of promissory note issued

3 years

Redemption prior to August 1, 2021 | Senior Unsecured Notes Due 2026 | Unsecured Debt

Line of Credit Facility [Line Items]

Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed

35.00%

Debt Instrument, Redemption Price, Percentage

109.50%

Redemption in whole or in part | Senior Unsecured Notes Due 2026 | Unsecured Debt

Line of Credit Facility [Line Items]

Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed

100.00%

Redemption due to Partnership change of control | Senior Unsecured Notes Due 2026 | Unsecured Debt

Line of Credit Facility [Line Items]

Debt Instrument, Redemption Price, Percentage

101.00%

Commitments and Contingencies -

Commitments and Contingencies - Narrative (Details) - USD ($)	Aug. 01, 2018	Mar. 15, 2017	Aug. 31, 2016	Sep. 30, 2018	Mar. 31, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Long-term Purchase Commitment [Line Items]
Payments for non-delivery of minimum annual sand volumes							$ 0
Royalty expense				$ 4,243,000		$ 5,447,000	$ 12,861,000	$ 13,085,000
Property value guarantees, sale period threshold							180 days
Property value guaranty purchases							$ 3,085,000
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			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			45,000,000
Payment of contingent consideration					$ 20,000,000
Business acquisition, contingent consideration period		2 years
FB Industries
Long-term Purchase Commitment [Line Items]
Business acquisition, estimated fair value contingent consideration to pay	$ 8,446,000
Business acquisition, contingent consideration period	3 years
Sensitivity Analysis of Fair Value of Contingent Consideration, Impact of 50 Percent Change in Assumptions				3,289,000			$ 3,289,000
Minimum
Long-term Purchase Commitment [Line Items]
Initial terms of contracted minimum sand volumes							1 year
Minimum | Hi-Crush Blair LLC
Long-term Purchase Commitment [Line Items]
Sensitivity analysis of fair value of contingent consideration, impact of 10 percent change in assumptions				2,398,000			$ 2,398,000
Minimum | Hi-Crush Whitehall LLC and Other Assets
Long-term Purchase Commitment [Line Items]
Sensitivity analysis of fair value of contingent consideration, impact of 10 percent change in assumptions				0			0
Minimum | FB Industries
Long-term Purchase Commitment [Line Items]
Sensitivity analysis of fair value of contingent consideration, impact of 10 percent change in assumptions				1,805,000			$ 1,805,000
Maximum
Long-term Purchase Commitment [Line Items]
Initial terms of contracted minimum sand volumes							7 years
Maximum | Hi-Crush Blair LLC
Long-term Purchase Commitment [Line Items]
Sensitivity analysis of fair value of contingent consideration, impact of 10 percent change in assumptions				0			$ 0
Maximum | Hi-Crush Whitehall LLC and Other Assets
Long-term Purchase Commitment [Line Items]
Sensitivity analysis of fair value of contingent consideration, impact of 10 percent change in assumptions				0			0
Maximum | FB Industries
Long-term Purchase Commitment [Line Items]
Sensitivity analysis of fair value of contingent consideration, impact of 10 percent change in assumptions				$ 2,110,000			$ 2,110,000

Commitments and Contingencies_2

Commitments and Contingencies - Schedule of Contractual Obligations (Details) $ in Thousands	Sep. 30, 2018USD ($)
Operating Leases
Operating leases, future minimum payments, remainder of fiscal year	$ 9,325
Operating leases, future minimum payments, due in two years	37,492
Operating leases, future minimum payments, due in three years	34,681
Operating leases, future minimum payments, due in four years	27,647
Operating leases, future minimum payments, due in five years	19,871
Operating leases, future minimum payments, due thereafter	35,580
Operating Leases	164,596
Minimum Purchase Commitments
Minimum purchase commitments, remainder of fiscal year	1,780
Minimum purchase commitments, due in second year	4,579
Minimum purchase commitments, due in third year	2,377
Minimum purchase commitments, due in fourth year	2,344
Minimum purchase commitments, due in fifth year	2,344
Minimum purchase commitments, due thereafter	1,890
Minimum Purchase Commitments	$ 15,314

Commitments and Contingencies_3

Commitments and Contingencies - Schedule of Contingent Consideration (Details) - USD ($) $ in Thousands		Sep. 30, 2018	Mar. 15, 2017	Aug. 31, 2016
Hi-Crush Blair LLC
Business Acquisition, Contingent Consideration [Line Items]
Remaining estimated fair value of contingent consideration	[1]	$ 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		0
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		2,398
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		0
Hi-Crush Whitehall LLC and Other Assets
Business Acquisition, Contingent Consideration [Line Items]
Remaining estimated fair value of contingent consideration	[1]	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		0
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		$ 0
[1]	Reflected in accrued and other current liabilities on our Condensed Consolidated Balance Sheet as of September 30, 2018

Equity - Narrative (Details)

Equity - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	Aug. 01, 2018	Jan. 04, 2017	Sep. 30, 2018	Sep. 30, 2017	Jun. 30, 2018	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017	Oct. 17, 2017	Jun. 30, 2017
Class of Stock [Line Items]
Limited partners interest, units outstanding (in units)			89,866,063			89,866,063		89,009,188
Number of common units issued (in units)							23,575,000
Proceeds from equity issuances, net						$ 0	$ 412,577
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)			1,536,881	997,066		1,536,881	997,066
General Partner and IDRs
Class of Stock [Line Items]
Net income allocated to holder 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						10.00%
Hi-Crush Partners LP Long Term Incentive Plan
Class of Stock [Line Items]
Weighted average potentially dilutive common units outstanding (in units)			1,536,881	997,066		1,536,881	997,066
October 2017 Unit Repurchase Plan
Class of Stock [Line Items]
Repurchase of common units, authorized amount									$ 100,000
Repurchase of common units, cumulative value			$ 0	$ 0	$ 29,426	$ 9,426	$ 0
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)			0	0	2,783,253	753,090	0
FB Industries | Common Units
Class of Stock [Line Items]
Issuance of units for a business acquisition (in units)	1,279,328

Equity - Unit Buyback Program (

Equity - Unit Buyback Program (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		8 Months Ended	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Jun. 30, 2018	Sep. 30, 2018	Sep. 30, 2017
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	$ 0	$ 0		$ 12.52	$ 0
Repurchase of common units	$ 0	$ 0	$ 29,426	$ 9,426	$ 0
October 2017 Unit Repurchase Plan | Common Units
Capital Unit [Line Items]
Number of common units repurchased (in units)	0	0	2,783,253	753,090	0

Equity - Distributions (Details

Equity - Distributions (Details) - USD ($) $ / shares in Units, $ in Thousands	Oct. 21, 2018	Jul. 20, 2018	May 15, 2018	Apr. 18, 2018	Feb. 13, 2018	Jan. 17, 2018	Nov. 14, 2017	Oct. 16, 2017	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Distribution Made to Limited Partner [Line Items]
Amount Declared Per Unit (usd per unit)									$ 0.225	$ 0.150	$ 1.200	$ 0.150
Declared distribution to Limited Partner Units									$ 22,695	$ 13,655	$ 117,500	$ 13,655
Limited Partner
Distribution Made to Limited Partner [Line Items]
Amount Declared Per Unit (usd per unit)		$ 0.7500		$ 0.2250		$ 0.2000		$ 0.1500
Payment to Limited Partner Units		$ 67,253	$ 19,888		$ 17,809		$ 13,656
General Partner and IDRs
Distribution Made to Limited Partner [Line Items]
Payment to the Holder of Incentive Distribution Rights		$ 7,664	$ 0		$ 0		$ 0		$ 0	$ 0	$ 7,664	$ 0
Subsequent Event | Limited Partner
Distribution Made to Limited Partner [Line Items]
Amount Declared Per Unit (usd per unit)	$ 0.225
Declared distribution to Limited Partner Units	$ 22,695
Subsequent Event | General Partner and IDRs
Distribution Made to Limited Partner [Line Items]
Payment to the Holder of Incentive Distribution Rights	$ 0

Equity - Weighted Average Limit

Equity - Weighted Average Limited Partner Units Outstanding (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Equity [Abstract]
Weighted average limited partner units outstanding, basic (in units)	89,277,833	91,030,558	88,848,290	85,277,011
Weighted average potentially dilutive common units outstanding (in units)	1,536,881	997,066	1,536,881	997,066
Weighted average limited partner units outstanding, diluted (in units)	90,814,714	92,027,624	90,385,171	86,274,077

Equity - Schedule of Net Income

Equity - Schedule of Net Income Attributable to Limited Partners (Details) - USD ($) $ / shares in Units, $ in Thousands	Jul. 20, 2018	May 15, 2018	Feb. 13, 2018	Nov. 14, 2017	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Distribution Made to Limited Partner [Line Items]
Declared distribution to Limited Partner Units					$ 22,695	$ 13,655	$ 117,500	$ 13,655
Assumed allocation of earning (loss) in excess of distributions					3,850	16,152	31,002	25,701
Assumed allocation of net income to Limited Partners					$ 26,545	$ 29,807	$ 148,502	$ 40,827
Earnings per limited partner unit - basic (usd per unit)					$ 0.30	$ 0.33	$ 1.67	$ 0.48
Earnings per limited partner unit - diluted (usd per unit)					$ 0.29	$ 0.32	$ 1.64	$ 0.47
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					$ 22,695	$ 13,655	$ 109,836	13,655
Assumed allocation of earning (loss) in excess of distributions					3,850	16,152	38,230	25,701
Assumed allocation of net income to Limited Partners					26,545	29,807	148,066	40,827
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 the Holder of Incentive Distribution Rights	$ 7,664	$ 0	$ 0	$ 0	0	0	7,664	0
Assumed allocation of earning (loss) in excess of distributions					0	0	(7,228)	0
Assumed allocation of net income to General Partner and IDRs					$ 0	$ 0	$ 436	$ 0

Unit-Based Compensation - Narra

Unit-Based Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	Nov. 15, 2018	Feb. 28, 2017	Sep. 30, 2018	Sep. 30, 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)	298,000
Unit Purchase Programs | Directors
Class of Stock [Line Items]
Accumulated contributions to Unit Purchase Program from directors			$ 425
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			$ 945,972
Weighted average remaining service period			10 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			$ 8,782,321
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	9 Months Ended
	Sep. 30, 2018$ / sharesshares
Performance Phantom Units
Outstanding units at beginning of period | shares	346,141
Vested units | shares	(60,528)
Granted units | shares	1,104
Forfeited units | shares	(6,193)
Outstanding units at end of period | shares	280,524
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	32.45
Granted (usd per unit) | $ / shares	15.25
Forfeited (usd per unit) | $ / shares	33.93
Outstanding units at end of period (usd per unit) | $ / shares	$ 10.20

Unit-Based Compensation - Time-

Unit-Based Compensation - Time-Based Phantom Units (Details) - Hi-Crush Partners LP Long Term Incentive Plan - Time-Based Phantom Units	9 Months Ended
	Sep. 30, 2018$ / sharesshares
Time-Based Phantom Units
Outstanding units at beginning of period | shares	1,036,592
Vested units | shares	(239,799)
Granted units | shares	498,147
Forfeited units | shares	(38,583)
Outstanding units at end of period | shares	1,256,357
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	14.61
Granted (usd per unit) | $ / shares	10.21
Forfeited (usd per unit) | $ / shares	9.61
Outstanding units at end of period (usd per unit) | $ / shares	$ 10.02

Unit-Based Compensation - Total

Unit-Based Compensation - Total Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Compensation Expense [Line Items]
Total compensation expense	$ 1,897	$ 1,509	$ 5,508	$ 3,906
Performance Phantom Units
Compensation Expense [Line Items]
Total compensation expense	343	373	1,028	1,121
Time-Based Phantom Units
Compensation Expense [Line Items]
Total compensation expense	1,335	714	3,824	1,993
Director and other unit grants
Compensation Expense [Line Items]
Total compensation expense	119	124	356	375
Unit Purchase Programs
Compensation Expense [Line Items]
Total compensation expense	$ 100	$ 298	$ 300	$ 417

Revenues - Narrative (Details)

Revenues - Narrative (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Deferred revenues	$ 23,081	$ 11,783
Expected period to recognize deferred revenues over	1 year 10 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		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Disaggregation of Revenue [Line Items]
Total revenues	$ 213,972	$ 167,583	$ 680,605	$ 386,167
Frac sand sales revenues
Disaggregation of Revenue [Line Items]
Total revenues	177,585	167,473	581,772	385,923
Sales to contract customers
Disaggregation of Revenue [Line Items]
Total revenues	157,819	114,901	508,832	263,059
Spot sales
Disaggregation of Revenue [Line Items]
Total revenues	19,766	52,572	72,940	122,864
Other revenues
Disaggregation of Revenue [Line Items]
Total revenues	$ 36,387	$ 110	$ 98,833	$ 244

Revenues - Deferred Revenues (D

Revenues - Deferred Revenues (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2018USD ($)
Movement in Deferred Revenue [Roll Forward]
Deferred revenues, at beginning of period	$ 11,783
Collection of prepayments	10,076
Revenues recognized	(8,689)
Deferred revenues, at end of period	23,081
FB Industries
Movement in Deferred Revenue [Roll Forward]
Collection of prepayments	$ 9,911

Related Party Transactions - Na

Related Party Transactions - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended		12 Months Ended
	Sep. 30, 2018	Mar. 31, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Related Party Transaction [Line Items]
Due to sponsor	$ 5,345			$ 5,345		$ 12,399
Lease expense prepayment, related party		$ 3,211
Hi-Crush Services LLC
Related Party Transaction [Line Items]
Management and administrative services	2,299		$ 1,375	6,805	$ 3,968
Proppant Express Investments, LLC
Related Party Transaction [Line Items]
Purchases from related parties				9,835		6,593
Accounts payable, related party	709			709		$ 1,273
Lease expense, related party	$ 1,620		$ 539	$ 3,709	$ 1,205

Segment Reporting - Narrative (

Segment Reporting - Narrative (Details)	9 Months Ended
	Sep. 30, 2018segment
Segment Reporting [Abstract]
Number of operating segments	1

Subsequent Events - Narrative (

Subsequent Events - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions	Oct. 21, 2018	Jul. 20, 2018	Apr. 18, 2018	Jan. 17, 2018	Oct. 16, 2017	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Subsequent Event [Line Items]
Declared distribution to Limited Partner Units						$ 22,695	$ 13,655	$ 117,500	$ 13,655
Distributions declared per limited partner unit (usd per unit)						$ 0.225	$ 0.150	$ 1.200	$ 0.150
Issuance of common units for business acquisition								$ 19,190
Limited Partner
Subsequent Event [Line Items]
Distributions declared per limited partner unit (usd per unit)		$ 0.7500	$ 0.2250	$ 0.2000	$ 0.1500
Issuance of common units for business acquisition								$ 19,190
Subsequent Event | Limited Partner
Subsequent Event [Line Items]
Declared distribution to Limited Partner Units	$ 22,695
Distributions declared per limited partner unit (usd per unit)	$ 0.225
Partners' Capital Account, Units, Acquisitions	11
Issuance of common units for business acquisition	$ 96,300