Hi-Crush (HCR) 10-Q 7 May 19 2019 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2019	May 02, 2019
Document And Entity Information [Abstract]
Entity Registrant Name	Hi-Crush Partners LP
Entity Central Index Key	0001549848
Trading Symbol	HCLP
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Mar. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Small Business	false
Entity Emerging Growth	false
Entity Common Stock, Shares Outstanding		101,105,766

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Current assets:
Cash	$ 60,404	$ 114,256
Accounts receivable, net (Note 2)	97,264	101,029
Inventories (Note 4)	44,400	57,089
Prepaid expenses and other current assets	12,482	13,239
Total current assets	214,550	285,613
Property, plant and equipment, net (Note 5)	1,042,350	1,031,188
Operating lease right-of-use assets (Note 6)	128,467
Goodwill and intangible assets, net	72,090	71,575
Equity method investments (Note 7)	39,254	37,354
Other assets	2,760	8,108
Total assets	1,499,471	1,433,838
Current liabilities:
Accounts payable	33,635	71,039
Accrued and other current liabilities	44,796	61,337
Current portion of deferred revenues (Note 12)	26,950	19,940
Current portion of long-term debt (Note 8)	1,147	2,194
Current portion of operating lease liabilities (Note 6)	33,609
Total current liabilities	140,137	154,510
Deferred revenues (Note 12)	7,454	9,845
Long-term debt (Note 8)	442,901	443,283
Operating lease liabilities (Note 6)	85,300
Asset retirement obligations	10,806	10,677
Other liabilities (Note 9)	8,231	8,276
Total liabilities	694,829	626,591
Commitments and contingencies (Note 9)
Partners’ capital:
Limited partners interest, 101,105,766 and 100,874,988 units outstanding, respectively	807,148	811,477
Accumulated other comprehensive loss	(2,506)	(4,230)
Total partners’ capital	804,642	807,247
Total liabilities and partners’ capital	$ 1,499,471	$ 1,433,838

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - shares	Mar. 31, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Limited partners interest, units outstanding	101,105,766	100,874,988

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	[1]
Income Statement [Abstract]
Revenues (Note 12)	$ 159,910	$ 218,113
Cost of goods sold (excluding depreciation, depletion and amortization)	130,522	141,983
Depreciation, depletion and amortization	11,272	7,799
Gross profit	18,116	68,331
Operating costs and expenses:
General and administrative expenses	12,613	10,943
Depreciation and amortization	1,676	525
Accretion of asset retirement obligations	129	126
Other operating expenses, net	431	999
Income from operations	3,267	55,738
Other income (expense):
Earnings from equity method investments (Note 7)	1,116	1,166
Interest expense	(10,590)	(3,473)
Net income (loss)	$ (6,207)	$ 53,431
Earnings (loss) per limited partner unit:
Earnings (loss) per limited partner unit - basic (usd per unit)	$ (0.06)	$ 0.60
Earnings (loss) per limited partner unit - diluted (usd per unit)	$ (0.06)	$ 0.59
Weighted average limited partner units outstanding, basic (in units)	101,017,441	88,870,379
Weighted average limited partner units outstanding, diluted (in units)	101,017,441	90,173,318
[1]	Financial information has been recast to include the results attributable to our sponsor and general partner.

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	[1]
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (6,207)	$ 53,431
Foreign currency translation adjustment	1,724	0
Comprehensive income (loss)	$ (4,483)	$ 53,431
[1]	Financial information has been recast to include the results attributable to our sponsor and general partner.

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Operating activities:
Net income (loss)		$ (6,207)	$ 53,431	[1]
Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities:
Depreciation and depletion		11,500	7,903	[1]
Amortization of intangible assets		1,448	421	[1]
Unit-based compensation to directors and employees		1,578	1,801	[1]
Amortization of loan origination costs into interest expense		409	194	[1]
Accretion of asset retirement obligations		129	126	[1]
(Gain) loss on disposal of property, plant and equipment		123	(24)	[1]
Amortization of right of use assets		2,642	0	[1]
Earnings from equity method investments		(1,116)	(1,166)	[1]
Changes in operating assets and liabilities:
Accounts receivable		3,566	4,504	[1]
Inventories		11,534	7,279	[1]
Prepaid expenses and other current assets		(1,273)	(1,863)	[1]
Other assets		(1,025)	537	[1]
Accounts payable		(15,944)	(1,035)	[1]
Accrued and other current liabilities		(16,869)	(382)	[1]
Deferred revenues		4,637	(1,076)	[1]
Operating lease liabilities		(3,739)	(15)	[1]
Net cash (used in) provided by operating activities		(8,607)	70,635	[1]
Investing activities:
Capital expenditures for property, plant and equipment		(40,289)	(12,258)	[1]
Proceeds from sale of property, plant and equipment		425	2,867	[1]
Business acquisition, net of cash acquired		3,119	0	[1]
Equity method investments		(495)	0	[1]
Net cash used in investing activities		(43,478)	(9,391)	[1]
Financing activities:
Repayment of long-term debt		(694)	(1,457)	[1]
Repayment of premium financing notes		1,044	857	[1]
Refund (payment) of loan origination costs		167
Refund (payment) of loan origination costs	[1]		(109)
Repurchase of common units		0	(9,426)	[1]
Payment of accrued distribution equivalent rights		(209)	(127)	[1]
Distributions paid to members of Hi-Crush Proppants LLC		0	24,838	[1]
Distributions paid to limited partner unitholders		0	(17,809)	[1]
Net cash used in financing activities		(1,780)	(54,623)	[1]
Effects of exchange rate on cash		13	0	[1]
Net increase (decrease) in cash		(53,852)	6,621	[1]
Cash at beginning of period		114,256	7,724	[1]
Cash at end of period		60,404	14,345	[1]
Non-cash investing and financing activities:
Decrease in accounts payable and accrued liabilities for additions to property, plant and equipment		(22,186)	(2,817)	[1]
Change in estimated fair value of contingent consideration liability		276	0	[1]
Increase (decrease) in accrued distribution equivalent rights		(116)	271	[1]
Cash paid for interest, net of capitalized interest		$ 21,292	$ 3,278	[1]
[1]	Financial information has been recast to include the results attributable to our sponsor and general partner.

Condensed Consolidated Statem_4

Condensed Consolidated Statement of Partners' Capital - USD ($) $ in Thousands		Total	General Partner Capital	Limited Partner Capital	Non-Controlling Interest	Accumulated Other Comprehensive Income (Loss)
Partners' Capital, beginning balance at Dec. 31, 2017	[1]	$ 825,770	$ 0	$ 1,239,282	$ (413,512)
Increase (Decrease) in Partners' Capital
Issuance of common units to directors and employees		474		474
Unit-based compensation expense		1,682		1,682
Repurchase of common units		(9,426)		(9,426)
Distributions, including distribution equivalent rights		18,079		18,079
Distributions to members of Hi-Crush Proppants LLC	[1]	24,838			24,838
Net income (loss)	[1]	53,431		53,431
Partners' Capital, ending balance at Mar. 31, 2018	[1]	829,014	$ 0	1,267,364	$ (438,350)
Partners' Capital, beginning balance at Dec. 31, 2018		807,247		811,477		$ (4,230)
Increase (Decrease) in Partners' Capital
Issuance of common units to directors and employees		246		246
Unit-based compensation expense		1,516		1,516
Forfeiture of distribution equivalent rights		116		116
Other comprehensive income		1,724				1,724
Net income (loss)		(6,207)		(6,207)
Partners' Capital, ending balance at Mar. 31, 2019		$ 804,642		$ 807,148		$ (2,506)
[1]	Financial information has been recast to include the results attributable to our sponsor and general partner.

Condensed Consolidated Statem_5

Condensed Consolidated Statement of Partners' Capital (Parenthetical)	3 Months Ended
	Mar. 31, 2018$ / shares
Statement of Partners' Capital [Abstract]
Distribution, including distribution equivalent rights (usd per unit)	$ 0.20

Business and Organization

Business and Organization	3 Months Ended
	Mar. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Business and Organization	Business and Organization Basis of Presentation 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, 2018 , which are included in the Partnership’s Annual Report on Form 10-K filed with the SEC on February 20, 2019 . The year-end balance sheet data was derived from the audited financial statements. Certain amounts in the prior period financial statements have been reclassified to conform to the presentation of the current period financial statements as it relates to the reclassification of depreciation and amortization separately from general and administrative expenses on the Condensed Consolidated Statements of Operations. These reclassifications had no effect on the previously reported results of operations. 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. Description of Business and Organization The Partnership is a Delaware limited partnership formed on May 8, 2012. In connection with its formation, the Partnership issued a non-economic general partner interest to Hi-Crush GP LLC (the "general partner"), and a 100% limited partner interest to Hi-Crush Proppants LLC (the "sponsor"), its organizational limited partner. The Partnership is a fully integrated, strategic provider of proppant and logistics solutions to the North American petroleum industry. We provide mine-to-wellsite logistics services that optimize proppant supply to customers in all major oil and gas basins in the United States, and own and operate multiple frac sand mining facilities and in-basin terminals. Our PropStream ® service, offering both container- and silo-based wellsite delivery and storage systems, provides the highest level of flexibility, safety and efficiency in managing the full scope and value of the proppant supply chain. On August 1, 2018, the Partnership completed the acquisition of FB Industries Inc. ("FB Industries"), a company engaged in the engineering, design and marketing of silo-based frac sand management systems. On October 21, 2018, the Partnership entered into a contribution agreement with our sponsor pursuant to which the Partnership acquired all of the then outstanding membership interests in the sponsor and the non-economic general partner interest in the Partnership, in exchange for 11,000,000 newly issued common units (the "Sponsor Contribution"). In connection with the acquisition, all of the outstanding incentive distribution rights representing limited partnership interests in the Partnership were canceled and extinguished and the sponsor waived any and all rights to receive contingent consideration payments from the Partnership or our subsidiaries pursuant to certain previously entered into contribution agreements to which it was a party. The Sponsor Contribution was accounted for as a transaction between entities under common control whereby the net assets of our sponsor and general partner were recorded at their historical cost. Therefore, the Partnership's historical financial information has been recast to combine our sponsor and general partner with the Partnership as if the combination had been in effect since inception of the common control. Refer to Note 3 - Acquisitions for additional disclosure regarding recent acquisitions. Corporate Conversion

Significant Accounting Policies

Significant Accounting Policies	3 Months Ended
	Mar. 31, 2019
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, 2019 . Use of Estimates 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. Accounts Receivable Trade receivables relate to sales of frac sand, related services and the sale of logistics equipment 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 each of March 31, 2019 and December 31, 2018 , the Partnership maintained an allowance for doubtful accounts of $1,060 . Revenues recognized in advance of invoice issuance create assets referred to as "unbilled receivables." Any portion of our unbilled receivables for which our right to consideration is conditional on a factor other than the passage of time is considered a contract asset. These assets are presented on a combined basis with accounts receivable and are converted to trade receivables once billed. Leases On January 1, 2019, we adopted Accounting Standards Update ("ASU") 2016-02, Leases (Topic 842) using the modified retrospective transition method, utilizing the simplified transition option available, which allows entities to continue to apply the legacy guidance in ASC 840, Leases , including its disclosure requirements, in the comparative periods presented in the year of adoption. We have elected to apply certain practical expedients, whereby we will not reassess (i) whether any expired or existing contracts are or contain leases, (ii) the lease classification for any expired or existing leases and (iii) initial direct costs for any existing leases. Upon adoption of the new leasing standard on January 1, 2019, we recognized $135,480 of operating lease right-of-use assets, including any lease prepayments made, initial direct costs incurred and excludes lease incentives received, and $127,018 of related operating lease liabilities on the Consolidated Balance Sheet. The impact of adoption of the new leasing standard had no impact to the opening balance of retained earnings on the Consolidated Balance Sheet or to the Consolidated Statements of Operations. Refer to Note 6 - Leases for additional disclosure regarding leases. At inception of a contract, the Partnership determines if it includes a lease. When a lease is identified, a right-of-use asset and the corresponding lease liability are recorded on the Condensed Consolidated Balance Sheet. Right-of-use assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. Operating lease right-of-use assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. As most of our leases do not provide an implicit rate, we use our incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments. The operating lease right-of-use assets also includes any lease prepayments made, initial direct costs incurred and excludes lease incentives received. The operating lease liabilities also includes any deferred rent accrued. We generally do not include renewal or termination options in our assessment of the leases unless extension or termination for certain assets is deemed to be reasonably certain. For all leases with a term of 12 months or less, we elected the practical expedient to not recognize lease assets and liabilities. Lease expense for lease payments is recognized on a straight-line basis over the lease term. Deferred Financing 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. 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. The estimated fair value of contingent consideration is recorded in accrued and other current liabilities and other liabilities on the Condensed Consolidated Balance Sheet. The estimate of fair value of a contingent consideration obligation requires subjective assumptions to be made regarding future business results, discount rates and probabilities assigned to various potential business result scenarios. Any adjustments to fair value are recognized in earnings in the period identified. Refer to Note 9 - Commitments and Contingencies for additional disclosure regarding contingent consideration. Revenue Recognition On January 1, 2018, we adopted ASU 2014-09, Revenue from Contracts with Customers (Topic 606), and all the related amendments to all contracts using the full retrospective method. The adoption of Topic 606 had no impact on our revenue recognition practices or impact to our Consolidated Financial Statements but required additional disclosures. Refer to Note 12 - 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 natural 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 2019 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 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 generate other revenues from the sale of logistics equipment, recognized at the time of delivery at the location specified by the customer. 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 Measurements 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 Partnership's financial assets and liabilities are measured using inputs from the three levels of the fair value hierarchy, which are as follows: • Level 1 - observable inputs such as quoted prices in active markets; • Level 2 - inputs other than quoted prices in active markets that we can directly or indirectly observe to the extent that the markets are liquid for the relevant settlement periods; and • Level 3 - unobservable inputs in which little or no market data exists, therefore inputs reflect the Partnership's assumptions. The fair value of the 9.50% senior unsecured notes due 2026 (the "Senior Notes") approximated $348,750 as of March 31, 2019 , based on the market price quoted from external sources, compared with a carrying value of $450,000 . If the Senior Notes were measured at fair value in the financial statements, it would be classified as Level 2 in the fair value hierarchy. We measure the contingent consideration liability recognized in connection with the acquisition of FB Industries at fair value on a recurring basis using unobservable inputs and it would be classified as Level 3 in the fair value hierarchy. Refer to Note 9 - Commitments and Contingencies for additional disclosure regarding contingent consideration. Net Income per Limited Partner Unit Net income or loss per limited partner unit is computed by dividing net income or loss by the weighted-average number of outstanding limited partner units during the period. For the periods presented prior to the Sponsor Contribution, we had identified the sponsor’s incentive distribution rights as participating securities and computed income per unit using the two-class method under which any excess of distributions declared over net income or loss were 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 was 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. The incentive distribution rights were canceled and extinguished on October 21, 2018 in connection with the Sponsor Contribution. As described in Note 1 , the Partnership's historical financial information has been recast to consolidate our sponsor and general partner for all periods presented. The amounts of incremental income or losses recast to periods prior to the Sponsor Contribution are excluded from the calculation of net income per limited partner unit. Income Taxes The Partnership is a pass-through entity and is not considered a taxable entity for federal tax purposes. Therefore, there is not a provision for income taxes in the accompanying Condensed Consolidated Financial Statements. The Partnership’s net income or loss is allocated to its partners in accordance with the partnership agreement. The partners are taxed individually on their share of the Partnership’s earnings. At March 31, 2019 and December 31, 2018 , the Partnership did not have any liabilities for uncertain tax positions or gross unrecognized tax benefits. Foreign Currency Translation

Acquisitions

Acquisitions	3 Months Ended
	Mar. 31, 2019
Business Combinations [Abstract]
Acquisitions	Acquisitions Acquisition of BulkTracer Holdings LLC On January 18, 2019, the Partnership completed the acquisition of BulkTracer Holdings LLC ("BulkTracer"), the owner of a logistics software system, PropDispatch, for $3,134 in cash. 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 purchase price of $3,134 was allocated to the net assets acquired as follows: Net assets of BulkTracer as of January 18, 2019: Cash $ 15 Accounts receivable 152 Property, plant and equipment 2,864 Equity method investments 289 Accounts payable (86 ) Deferred revenues (100 ) Fair value of net assets acquired $ 3,134 The operations of BulkTracer have been included in the statements prospectively from January 18, 2019. In connection with this acquisition, the Partnership incurred $100 of acquisition related costs during the three months ended March 31, 2019, included in general and administrative expenses. Pro forma results of operations for BulkTracer have not been presented because the acquisition was not material to the consolidated results of operations. Acquisition of Hi-Crush Proppants LLC and Hi-Crush GP LLC On October 21, 2018, the Partnership entered into a contribution agreement with our sponsor pursuant to which the Partnership acquired all of the then outstanding membership interests in the sponsor and the non-economic general partner interest in the Partnership, in exchange for 11,000,000 newly issued common units. In connection with the acquisition, all of the outstanding incentive distribution rights representing limited partnership interests in the Partnership were canceled and extinguished and the sponsor waived any and all rights to receive contingent consideration payments from the Partnership or our subsidiaries pursuant to certain previously entered into contribution agreements to which it was a party. In connection with this acquisition, the Partnership incurred $3,810 of acquisition related costs during the year ended December 31, 2018, included in general and administrative expenses. 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 our sponsor and general partner as if the combination had been in effect since inception of common control on October 28, 2010. All transactions between the Partnership, our sponsor and general partner have been eliminated. Except for the combination of the Consolidated Statements of Operations and the respective allocation of recast net income (loss), distributions paid by the sponsor to its members prior to October 21, 2018 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 our sponsor's and general partner's net assets as of October 21, 2018, and the allocation of the purchase price: Net assets of our sponsor and general partner as of October 21, 2018: Cash $ 1,314 Accounts receivable 29 Due from Hi-Crush Partners LP 1,446 Prepaid expenses and other current assets 3,132 Property, plant and equipment 2,087 Accounts payable (2,236 ) Accrued and other current liabilities (2,562 ) Current portion of long-term debt (2,259 ) Other liabilities (86 ) Total carrying value of sponsor and general partner net assets $ 865 Allocation of purchase price Carrying value of sponsor's non-controlling interest prior to Sponsor Contribution $ (453,028 ) Excess purchase price over the acquired interest 453,028 Common control cost of sponsor and general partner acquisition $ — The following table presents, on a supplemental basis, our recast revenues, net income, net income attributable to Hi-Crush Partners LP and net income per limited partner unit giving effect to the Sponsor 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. Three Months Ended March 31, 2018 Partnership Historical Sponsor and General Partner Eliminations Partnership Recast (Supplemental) Revenues $ 218,113 $ — $ — $ 218,113 Net income (loss) $ 53,949 $ (518 ) $ — $ 53,431 Net income (loss) attributable to Hi-Crush Partners LP $ 53,949 $ (518 ) $ — $ 53,431 Net income per limited partner unit - basic $ 0.60 $ 0.59 Acquisition of FB Industries Inc. On August 1, 2018, the Partnership acquired FB Industries, a company engaged in the engineering, design and marketing of silo-based frac sand management systems for $45,000 in cash and 1,279,328 of newly issued common units valued at $19,190 . The purchase price as of March 31, 2019 is $74,165 and is comprised of cash consideration of $54,975 which includes preliminary valuation of cash acquired and a working capital adjustment of $9,975 and the value of common units issued. 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. Refer to Note 9 - Commitments and Contingencies for additional disclosure regarding contingent consideration. The purchase price of $74,165 was allocated to the net assets acquired as follows: Net assets of FB Industries as of August 1, 2018: Cash $ 20,015 Accounts receivable 3,469 Inventories 13,416 Goodwill and intangible assets 70,238 Prepaid expenses and other current assets 2,202 Property, plant and equipment 1,868 Accounts payable (1,628 ) Deferred revenues (13,004 ) Accrued and other current liabilities (13,988 ) Contingent consideration (8,423 ) Fair value of net assets acquired $ 74,165 The operations of FB Industries have been included in the statements prospectively from August 1, 2018. In connection with this acquisition, the Partnership incurred $639

Inventories

Inventories	3 Months Ended
	Mar. 31, 2019
Inventory Disclosure [Abstract]
Inventories	Inventories Inventories consisted of the following: March 31, 2019 December 31, 2018 Raw material $ 572 $ 512 Work-in-process 19,890 29,180 Finished goods 21,284 24,872 Spare parts 2,654 2,525 Inventories $ 44,400 $ 57,089

Property, Plant and Equipment

Property, Plant and Equipment	3 Months Ended
	Mar. 31, 2019
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	Property, Plant and Equipment Property, plant and equipment consisted of the following: March 31, 2019 December 31, 2018 Buildings $ 32,766 $ 32,751 Mining property and mine development 390,888 390,296 Plant and equipment 474,737 472,892 Rail and rail equipment 55,913 55,913 Transload facilities and equipment 119,390 118,982 Last mile equipment 67,833 66,083 Construction-in-progress 38,170 21,796 Property, plant and equipment 1,179,697 1,158,713 Less: Accumulated depreciation and depletion (137,347 ) (127,525 ) Property, plant and equipment, net $ 1,042,350 $ 1,031,188 Depreciation and depletion expense was $11,500 and $7,903 for the three months ended March 31, 2019 and 2018 , respectively. The Partnership recognized a loss of $123 and a gain of $24 on the disposal of fixed assets during the three months ended March 31, 2019 and 2018

Leases

Leases	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Leases	Leases As described in Note 2 , on January 1, 2019, we adopted ASU 2016-02, Leases (Topic 842). Prior periods presented have not been adjusted and continue to be reported in accordance with the legacy guidance in Topic 840. Lessee The Partnership has long-term operating leases, comprised primarily of railcars and container lease arrangements, equipment, office space and terminals. Our operating leases have remaining lease terms of 1.1 years to 9.3 years , some of which include automatic renewal options, options to extend the leases and options to terminate the leases. As of March 31, 2019 , the balance sheet information related to leases are as follows: Operating lease right-of-use assets $ 128,467 Current portion of operating lease liabilities $ 33,609 Operating lease liabilities 85,300 Total operating lease liabilities $ 118,909 Operating lease liabilities are based on the net present value of the remaining lease payments over the remaining lease term. In determining the lease liability and the present value of lease payments, we used our incremental borrowing rate based on the information available at the lease commencement date. The weighted average remaining lease term and discount rate as of March 31, 2019 related to operating leases are as follows: Weighted average remaining lease term 5.2 years Weighted average discount rate 9.50 % The components of operating lease expenses on our Condensed Consolidated Statement of Operations for the three months ended March 31, 2019 is as follows: Cost of goods sold Operating lease cost $ 9,937 Short-term lease cost 1,360 $ 11,297 General and administrative expenses Operating lease cost $ 64 Short-term lease cost 154 $ 218 Total lease costs $ 11,515 Supplemental cash flow information related to our operating leases for the three months ended March 31, 2019 is as follows: Cash paid for amounts included in the measurement of lease liabilities $ 12,583 Noncash information on lease liabilities arising from obtaining right-of-use assets $ 135,480 As of March 31, 2019 , the maturities of operating lease liabilities are as follows: Fiscal Year 2019 (remaining months) $ 26,111 2020 37,169 2021 29,892 2022 21,117 2023 10,368 Thereafter 25,814 Total lease payments 150,471 Less: present value adjustment (31,562 ) Total operating lease liabilities $ 118,909 As of December 31, 2018, future minimum operating lease payments are as follows: Fiscal Year 2019 $ 36,019 2020 36,282 2021 29,272 2022 20,890 2023 10,280 Thereafter 31,066 $ 163,809 Lessor

Equity Method Investments

Equity Method Investments	3 Months Ended
	Mar. 31, 2019
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investments	Equity Method Investments The following table provides our net investments and the proportionate share of our equity method investments operating results: Investment Earnings from Equity Method Investments Three Months Ended March 31, 2019 December 31, 2018 March 31, 2019 2018 Proppant Express Investments, LLC $ 32,231 $ 30,870 $ 1,072 $ 1,166 Proppant Logistics LLC 7,023 6,484 44 — Total $ 39,254 $ 37,354 $ 1,116 $ 1,166 Investment in Proppant Express Investments, LLC 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. During the three months ended March 31, 2019 and 2018 , the Partnership made no capital contributions to PropX. During the three months ended March 31, 2019, the Partnership acquired $289 of additional ownership in PropX through the BulkTracer acquisition. Investment in Proppant Logistics LLC On October 31, 2018, the Partnership invested $6,600 for an equity interest in Proppant Logistics LLC, a logistics company which provides frac sand services in North America. During the three months ended March 31, 2019 , the Partnership made capital contributions of $495

Long-Term Debt

Long-Term Debt	3 Months Ended
	Mar. 31, 2019
Debt Disclosure [Abstract]
Long-Term Debt	Long-Term Debt Long-term debt consisted of the following: March 31, 2019 December 31, 2018 Senior Notes due 2026 $ 450,000 $ 450,000 ABL Credit Facility — — Other notes payable 3,113 4,852 Less: Unamortized debt issuance costs (9,065 ) (9,375 ) Total debt 444,048 445,477 Less: Current portion of long-term debt (1,147 ) (2,194 ) Long-term debt $ 442,901 $ 443,283 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 under the ABL Credit Facility, 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 March 31, 2019 , we had $440,935 of indebtedness ( $450,000 , net of $9,065 of debt issuance costs) under our Senior Notes. ABL Credit Facility On August 1, 2018, the Partnership, entered into a senior secured revolving credit facility (the "ABL Credit Facility"), 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 Facility 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 March 31, 2019 , we had $55,164 of available borrowing capacity ( $77,131 , net of $21,967 letter of credit commitments) and no indebtedness under our ABL Credit Facility. The obligations of the Partnership under the ABL Credit Facility 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 Facility 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 Facility 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 Facility 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 Facility 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 Facility to become immediately due and payable. The events of default (some of which are subject to applicable grace or cure periods) include, among other things, non-payment defaults, covenant defaults, cross-defaults to other material indebtedness, bankruptcy and insolvency defaults, and material judgment defaults. As of March 31, 2019 , the Partnership was in compliance with all covenants in the ABL Credit Facility. Other Notes Payable In 2014, the Partnership entered into a purchase and sales agreement to acquire land and underlying frac sand deposits. In connection with this agreement, during the years ended December 31, 2018 and 2016, the Partnership issued three -year promissory notes each in the amount of $3,676 due in August 2021 and December 2019, respectively, with interest rates of 2.42% and 0.74% , respectively. 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. However, the promissory notes are prepaid on a quarterly basis during the three-year terms as sand is extracted, delivered, sold and paid for from the properties. The Partnership made prepayments of $694 and $957 during the three months ended March 31, 2019 and 2018 , respectively, based on the accumulated volume of sand extracted, delivered, sold and paid for. In April 2019, the Partnership made a prepayment of $691 based on the volume of sand extracted, delivered, sold and paid for through the first quarter of 2019 . As of March 31, 2019 , the Partnership had repaid in full the promissory note due in December 2019 and had $2,657 outstanding on its remaining promissory note due in August 2021. Other notes payable also includes short-term obligations, arising from insurance premium financing programs bearing interest ranging from approximately 4.99% to 6.29% , with outstanding balances of $456 as of March 31, 2019

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Customer Contracts The Partnership enters into sales contracts with customers. These contracts establish minimum annual sand volumes that the Partnership is required to make available to such customers under initial terms ranging from one to seven years. Through March 31, 2019 , no payments for non-delivery of minimum annual sand volumes have been made by the Partnership to customers under these contracts. 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 $1,471 and $3,540 for the three months ended March 31, 2019 and 2018 , respectively. Certain acreage is subject to a minimum annual royalty payment. If not paid within 30 days after the annual period, the original landowner has the right to purchase the property for one dollar, subject to certain terms. If we have not made the minimum required royalty payments, we may satisfy our obligation by making a lump-sum cash make-whole payment. Accordingly, we believe there is no material risk that we will be required to sell back the subject property pursuant to this agreement. Property Value Guarantees The Partnership entered into mining agreements and land use agreements with the Wisconsin municipalities of Bridge Creek, Lincoln, Springfield and Preston that contain property value guarantees ("PVG") for certain property owners in proximity to each mine. The respective PVGs establish a process whereby we guaranty fair market value to the owners of residential property specifically identified within the body of the PVG document. According to the terms of the PVGs, the property owner must notify us in the event they wish to sell the subject residence and additional acreage in certain instances. Upon such notice, the PVGs establish a process by which an appraisal is conducted and the subject property is appraised to establish fair market value and is listed with a real estate broker. In the event the property is sold within 180 days of listing, we agree to pay the owner any shortfall between the sales price and the established fair market value. In the event the property is not sold within the 180 days time frame, we are obligated to purchase the property for fair market value. As of March 31, 2019 , we have not accrued a liability related to the PVGs because it is not possible to estimate how many of the owners will elect to avail themselves of the provisions of the PVGs and it cannot be determined if shortfalls will exist in the event of a sale nor can the value of the subject property be ascertained until appraised. As of March 31, 2019 , the Partnership has paid $3,085 under these guarantees since inception. Purchase Commitments We have entered into service agreements with certain transload service providers which requires us to purchase minimum amounts of services over specific periods of time at specific locations. Our failure to purchase the minimum level of services would require us to pay shortfall fees. As of March 31, 2019 , future minimum purchase commitments are as follows: Fiscal Year 2019 (remaining months) $ 4,843 2020 3,383 2021 2,424 2022 2,344 2023 2,182 Thereafter 677 $ 15,853 Contingent Consideration In connection with the acquisition of FB Industries, the agreement contained certain contingent consideration arrangements from the date of closing to December 31, 2021, dependent upon leases or sales of certain silo equipment to be paid quarterly. As of March 31, 2019 , the total estimated fair value of the contingent consideration is $8,423 and is recorded in accrued and other current liabilities and other liabilities on the Condensed Consolidated Balance Sheet. The current portion of the contingent consideration is $192 and relates to the sale of silo equipment. Changes in fair value of the contingent consideration, for facts and circumstances that existed at the time of the acquisition, prior to finalizing the purchase price allocation are accounted for as an adjustment to goodwill. Subsequent changes in fair value of the contingent consideration after the measurement period are recognized in earnings in the period identified. The estimated fair value assumes primarily leases are entered into during this period with minimal sales of silo equipment. A 10% increase or decrease in the assumed quantity of leases would result in an increase to $10,555 or a decrease to $6,456 , 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 $3,040 . The following table provides a summary of changes in the fair value of the contingent consideration: Balance at December 31, 2018 $ 8,147 Change in estimated fair value of contingent consideration liability 276 Balance at March 31, 2019 $ 8,423 Litigation

Equity

Equity	3 Months Ended
	Mar. 31, 2019
Equity [Abstract]
Equity	Equity 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 unit buyback program does not obligate the Partnership to repurchase any specific dollar amount or number of units and may be suspended, modified or discontinued by the board of directors at any time, in its sole discretion and without notice. The following table presents information with respect to repurchases of common units made by the Partnership during the periods presented, which were retired upon repurchase: Three Months Ended March 31, 2019 2018 Number of units purchased — 753,090 Average price paid per unit including commission $ — $ 12.52 Total cost $ — $ 9,426 As of March 31, 2019 , 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 represented 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. The incentive distribution rights were held by our sponsor and were canceled and extinguished on October 21, 2018 in connection with the Sponsor Contribution. 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 were made after giving effect, if any, to priority income allocations in an amount equal to incentive cash distributions allocated 100% to our sponsor for the periods applicable prior to the Sponsor Contribution. During the three months ended March 31, 2018 , prior to the Sponsor Contribution, 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 will receive and the holder of our incentive distribution rights received prior to the Sponsor Contribution. On January 7, 2019 , we announced the decision of the board of directors of our general partner to suspend the quarterly distribution to common unitholders. Our most recent distributions have been as follows: Declaration Date Amount Declared Per Unit Record Date Payment Date Payment to Limited Partner Units Payment to the Holder of Incentive Distribution Rights 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 $ — Net Income per Limited Partner Unit Following the Sponsor Contribution net income or loss per limited partner unit is computed by dividing net income or loss by the weighted average number of outstanding limited partner units during the period. Prior to the Sponsor Contribution, for purposes of calculating the Partnership’s earnings per unit under the two-class method, common units are treated as participating preferred units and the incentive distribution rights are treated as participating securities. Diluted earnings per unit excludes any dilutive awards granted (see Note 11 - Unit-Based Compensation ) if their effect is anti-dilutive. During the three months ended March 31, 2019 , the Partnership incurred a net loss and, as a result, all 2,326,675 phantom units granted and outstanding were potentially dilutive and were excluded from the diluted earnings per unit calculation. Diluted earnings per unit for the three months ended March 31, 2018 includes the dilutive effect of all 1,302,939 phantom units, granted and outstanding at the assumed number of units which would have vested if the performance period had ended on March 31, 2018 . 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 for the periods applicable prior to the Sponsor Contribution. 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 our sponsor and general partner for all periods presented. The amounts of incremental losses recast to periods prior to the Sponsor Contribution were excluded from the calculation of net income per limited partner unit. The following table provides a reconciliation of net loss and the basic and diluted, weighted average limited partner units outstanding for purposes of computing net loss per limited partner unit for the three months ended March 31, 2019 : Net loss $ (6,207 ) Basic weighted average common units outstanding 101,017,441 Potentially dilutive common units — Diluted weighted average common units outstanding 101,017,441 Loss per limited partner unit - basic $ (0.06 ) Loss per limited partner unit - diluted $ (0.06 ) The following table provides a reconciliation of net income, the assumed allocation of net income and the basic and diluted, weighted average limited partner units outstanding under the two-class method for purposes of computing net income per limited partner unit for the three months ended March 31, 2018 : General Partner and IDRs Limited Partner Units Total Declared distribution $ — $ 19,888 $ 19,888 Assumed allocation of earnings in excess of distributions 854 32,689 33,543 Add back recast losses attributable to our sponsor and general partner — 518 518 Assumed allocation of net income $ 854 $ 53,095 $ 53,949 Basic weighted average common units outstanding 88,870,379 Potentially dilutive common units 1,302,939 Diluted weighted average common units outstanding 90,173,318 Earnings per limited partner unit - basic $ 0.60 Earnings per limited partner unit - diluted $ 0.59 Recast Equity Transactions During the three months ended March 31, 2018 , our sponsor paid cash distributions of $24,838

Unit-Based Compensation

Unit-Based Compensation	3 Months Ended
	Mar. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Unit-Based Compensation	Unit-Based Compensation Long-Term Incentive Plan On August 21, 2012, our general partner 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 our general partner 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 our general partner’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, 2018 747,920 $ 5.93 Vested (97,865 ) $ 16.01 Forfeited (82,801 ) $ 4.60 Outstanding at March 31, 2019 567,254 $ 4.39 As of March 31, 2019 , total compensation expense not yet recognized related to unvested PPUs was $1,863 , with a weighted average remaining service period of 2.2 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, 2018 1,642,218 $ 8.07 Vested (70,729 ) $ 10.49 Granted 329,492 $ 3.15 Forfeited (141,560 ) $ 5.21 Outstanding at March 31, 2019 1,759,421 $ 7.28 As of March 31, 2019 , total compensation expense not yet recognized related to unvested TPUs was $8,096 , with a weighted average remaining service period of 2.1 years . Director Unit Grants The Partnership issued 62,184 and 36,109 common units to certain of its directors during the three months ended March 31, 2019 and 2018 , respectively. Unit Purchase Programs The Partnership has unit purchase programs (each, a "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. 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 . The offering period under the Second 2017 UPP ended on November 15, 2018, at which time the purchase date price was less than the Election Price. As a result, all contributions were returned to the participants and no common units were purchased under the Second 2017 UPP. Compensation Expense The following table presents total unit-based compensation expense: Three Months Ended March 31, 2019 2018 Performance Phantom Units $ 259 $ 343 Time-Based Phantom Units 1,257 1,239 Director unit grants 62 119 Unit Purchase Programs — 100 Total compensation expense $ 1,578 $ 1,801

Revenues

Revenues	3 Months Ended
	Mar. 31, 2019
Revenue from Contract with Customer [Abstract]
Revenues	Revenues 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. 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 March 31, 2019 2018 Sales to contract customers $ 80,064 $ 164,067 Spot sales 35,027 27,417 Frac sand sales revenues 115,091 191,484 Other revenues 44,819 26,629 Total revenues $ 159,910 $ 218,113 Practical Expedients and Exemptions We have elected to use the practical expedients, 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 2019 and 2024 . The remaining performance obligations are primarily comprised of unfulfilled product, transportation service, and labor service orders, some of which hold a remaining duration of less than one year. Our transaction price for volumes and services under these contracts is based on timing of customer orders, points of sale, mix of products sold, impact of market conditions and potential contract negotiations, which have not yet been determined and therefore the price is variable in nature. The long term portion of deferred revenue represents customer prepayments for which related current performance obligations do not yet exist, but are expected to arise, before the expiration of the term. Deferred Revenues As of March 31, 2019 , the Partnership has recorded a total liability of $34,404 for prepayments of future deliveries of frac sand and silo equipment. 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 1.4 years . The following table reflect the changes in our contract liabilities, which we classify as deferred revenues: Balance at December 31, 2018 $ 29,785 Collection of prepayments 8,750 Revenues recognized (4,278 ) Customer prepayments acquired in purchase of BulkTracer 100 Impact of foreign currency translation 47 Balance at March 31, 2019 $ 34,404

Related Party Transactions

Related Party Transactions	3 Months Ended
	Mar. 31, 2019
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions The following table summarizes our related party transactions from our equity method investments (see Note 7 - Equity Method Investments ) for the periods indicated: Three Months Ended March 31, 2019 2018 Revenues - related parties $ 124 $ — Cost of goods sold - related parties (a) $ 2,001 $ 926 Equipment purchases - related parties (b) $ 1,389 $ 650 (a) The Partnership incurs lease expense for the use of PropX equipment. (b) The Partnership purchases equipment from PropX, which is reflected in property, plant and equipment on our Condensed Consolidated Balance Sheet. The following table summarizes our related party balance sheet components from our equity method investments at the dates indicated: March 31, 2019 December 31, 2018 Accounts receivable - related parties $ 101 $ — Accounts payable - related parties $ — $ 1,070 Current portion of operating lease liabilities - related parties (a) $ 5,544 $ — Operating lease liabilities - related parties (a) 11,267 — $ 16,811 $ — (a) During the first quarter of 2019, the Partnership made a lease prepayment of $3,739 for the use of PropX equipment during the first half of 2019. During the three months ended March 31, 2018

Segment Reporting

Segment Reporting	3 Months Ended
	Mar. 31, 2019
Segment Reporting [Abstract]
Segment Reporting	Segment Reporting The Partnership manages, operates and owns assets utilized to supply frac sand and related services to its customers. The Partnership and the chief operating decision maker view the Partnership’s operations and manage its business as one

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2019
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events During the second quarter of 2019, the Partnership acquired the remaining 34% ownership interest in Proppant Logistics LLC, which owns Pronghorn Logistics, LLC ("Pronghorn"), a leading provider of end-to-end proppant logistics services, for $2,951 in cash and 695,606 newly issued common units. The Partnership previously invested $6,600 for a 66%

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2019
Accounting Policies [Abstract]
Use of Estimates	Use of EstimatesThe 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.
Accounts Receivable	Accounts Receivable Trade receivables relate to sales of frac sand, related services and the sale of logistics equipment 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 each of March 31, 2019 and December 31, 2018 , the Partnership maintained an allowance for doubtful accounts of $1,060 .
Leases	Leases On January 1, 2019, we adopted Accounting Standards Update ("ASU") 2016-02, Leases (Topic 842) using the modified retrospective transition method, utilizing the simplified transition option available, which allows entities to continue to apply the legacy guidance in ASC 840, Leases , including its disclosure requirements, in the comparative periods presented in the year of adoption. We have elected to apply certain practical expedients, whereby we will not reassess (i) whether any expired or existing contracts are or contain leases, (ii) the lease classification for any expired or existing leases and (iii) initial direct costs for any existing leases. Upon adoption of the new leasing standard on January 1, 2019, we recognized $135,480 of operating lease right-of-use assets, including any lease prepayments made, initial direct costs incurred and excludes lease incentives received, and $127,018 of related operating lease liabilities on the Consolidated Balance Sheet. The impact of adoption of the new leasing standard had no impact to the opening balance of retained earnings on the Consolidated Balance Sheet or to the Consolidated Statements of Operations. Refer to Note 6 - Leases for additional disclosure regarding leases.
Deferred Financing Charges	Deferred Financing 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. The estimated fair value of contingent consideration is recorded in accrued and other current liabilities and other liabilities on the Condensed Consolidated Balance Sheet. The estimate of fair value of a contingent consideration obligation requires subjective assumptions to be made regarding future business results, discount rates and probabilities assigned to various potential business result scenarios. Any adjustments to fair value are recognized in earnings in the period identified. Refer to Note 9 - Commitments and Contingencies
Revenue Recognition and Deferred Revenues	Revenue Recognition On January 1, 2018, we adopted ASU 2014-09, Revenue from Contracts with Customers (Topic 606), and all the related amendments to all contracts using the full retrospective method. The adoption of Topic 606 had no impact on our revenue recognition practices or impact to our Consolidated Financial Statements but required additional disclosures. Refer to Note 12 - 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 natural 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 2019 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 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 generate other revenues from the sale of logistics equipment, recognized at the time of delivery at the location specified by the customer. 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 Measurements	Fair Value Measurements 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 Partnership's financial assets and liabilities are measured using inputs from the three levels of the fair value hierarchy, which are as follows: • Level 1 - observable inputs such as quoted prices in active markets; • Level 2 - inputs other than quoted prices in active markets that we can directly or indirectly observe to the extent that the markets are liquid for the relevant settlement periods; and • Level 3 - unobservable inputs in which little or no market data exists, therefore inputs reflect the Partnership's assumptions. The fair value of the 9.50% senior unsecured notes due 2026 (the "Senior Notes") approximated $348,750 as of March 31, 2019 , based on the market price quoted from external sources, compared with a carrying value of $450,000 . If the Senior Notes were measured at fair value in the financial statements, it would be classified as Level 2 in the fair value hierarchy. We measure the contingent consideration liability recognized in connection with the acquisition of FB Industries at fair value on a recurring basis using unobservable inputs and it would be classified as Level 3 in the fair value hierarchy. Refer to Note 9 - Commitments and Contingencies
Net Income per Limited Partner Unit	Net Income per Limited Partner Unit Net income or loss per limited partner unit is computed by dividing net income or loss by the weighted-average number of outstanding limited partner units during the period. For the periods presented prior to the Sponsor Contribution, we had identified the sponsor’s incentive distribution rights as participating securities and computed income per unit using the two-class method under which any excess of distributions declared over net income or loss were 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 was 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. The incentive distribution rights were canceled and extinguished on October 21, 2018 in connection with the Sponsor Contribution. 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 Translation	Foreign Currency TranslationThe Partnership 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 Partnership's foreign subsidiary as it is the primary currency within the economic environment in which the subsidiary operates. Assets and liabilities of the subsidiary's operations are translated into U.S. dollars at the rate of exchange in effect on the balance sheet date and income and expenses are translated at the average exchange rate in effect during the reporting period. Adjustments resulting from the translation of the subsidiary's financial statements are reported in other comprehensive income.

Acquisitions (Tables)

Acquisitions (Tables)	3 Months Ended
	Mar. 31, 2019
Business Combinations [Abstract]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	The purchase price of $74,165 was allocated to the net assets acquired as follows: Net assets of FB Industries as of August 1, 2018: Cash $ 20,015 Accounts receivable 3,469 Inventories 13,416 Goodwill and intangible assets 70,238 Prepaid expenses and other current assets 2,202 Property, plant and equipment 1,868 Accounts payable (1,628 ) Deferred revenues (13,004 ) Accrued and other current liabilities (13,988 ) Contingent consideration (8,423 ) Fair value of net assets acquired $ 74,165 Net assets of our sponsor and general partner as of October 21, 2018: Cash $ 1,314 Accounts receivable 29 Due from Hi-Crush Partners LP 1,446 Prepaid expenses and other current assets 3,132 Property, plant and equipment 2,087 Accounts payable (2,236 ) Accrued and other current liabilities (2,562 ) Current portion of long-term debt (2,259 ) Other liabilities (86 ) Total carrying value of sponsor and general partner net assets $ 865 Allocation of purchase price Carrying value of sponsor's non-controlling interest prior to Sponsor Contribution $ (453,028 ) Excess purchase price over the acquired interest 453,028 Common control cost of sponsor and general partner acquisition $ — $3,134 was allocated to the net assets acquired as follows: Net assets of BulkTracer as of January 18, 2019: Cash $ 15 Accounts receivable 152 Property, plant and equipment 2,864 Equity method investments 289 Accounts payable (86 ) Deferred revenues (100 ) Fair value of net assets acquired $ 3,134
Business Acquisition, Recast Financial Information	The following table presents, on a supplemental basis, our recast revenues, net income, net income attributable to Hi-Crush Partners LP and net income per limited partner unit giving effect to the Sponsor 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. Three Months Ended March 31, 2018 Partnership Historical Sponsor and General Partner Eliminations Partnership Recast (Supplemental) Revenues $ 218,113 $ — $ — $ 218,113 Net income (loss) $ 53,949 $ (518 ) $ — $ 53,431 Net income (loss) attributable to Hi-Crush Partners LP $ 53,949 $ (518 ) $ — $ 53,431 Net income per limited partner unit - basic $ 0.60 $ 0.59

Inventories (Tables)

Inventories (Tables)	3 Months Ended
	Mar. 31, 2019
Inventory Disclosure [Abstract]
Components of Inventories	Inventories consisted of the following: March 31, 2019 December 31, 2018 Raw material $ 572 $ 512 Work-in-process 19,890 29,180 Finished goods 21,284 24,872 Spare parts 2,654 2,525 Inventories $ 44,400 $ 57,089

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	3 Months Ended
	Mar. 31, 2019
Property, Plant and Equipment [Abstract]
Components of Property, Plant and Equipment	Property, plant and equipment consisted of the following: March 31, 2019 December 31, 2018 Buildings $ 32,766 $ 32,751 Mining property and mine development 390,888 390,296 Plant and equipment 474,737 472,892 Rail and rail equipment 55,913 55,913 Transload facilities and equipment 119,390 118,982 Last mile equipment 67,833 66,083 Construction-in-progress 38,170 21,796 Property, plant and equipment 1,179,697 1,158,713 Less: Accumulated depreciation and depletion (137,347 ) (127,525 ) Property, plant and equipment, net $ 1,042,350 $ 1,031,188

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Supplemental Balance Sheet Information Related to Leases	As of March 31, 2019 , the balance sheet information related to leases are as follows: Operating lease right-of-use assets $ 128,467 Current portion of operating lease liabilities $ 33,609 Operating lease liabilities 85,300 Total operating lease liabilities $ 118,909
Schedule of the Weighted Average Remaining Lease Term	The weighted average remaining lease term and discount rate as of March 31, 2019 related to operating leases are as follows: Weighted average remaining lease term 5.2 years Weighted average discount rate 9.50 %
Schedule of Operating Lease Expenses	The components of operating lease expenses on our Condensed Consolidated Statement of Operations for the three months ended March 31, 2019 is as follows: Cost of goods sold Operating lease cost $ 9,937 Short-term lease cost 1,360 $ 11,297 General and administrative expenses Operating lease cost $ 64 Short-term lease cost 154 $ 218 Total lease costs $ 11,515
Schedule Of Supplemental Cash Flow Information Related To Leases	Supplemental cash flow information related to our operating leases for the three months ended March 31, 2019 is as follows: Cash paid for amounts included in the measurement of lease liabilities $ 12,583 Noncash information on lease liabilities arising from obtaining right-of-use assets $ 135,480
Schedule of Maturities of Operating Lease Liabilities	As of March 31, 2019 , the maturities of operating lease liabilities are as follows: Fiscal Year 2019 (remaining months) $ 26,111 2020 37,169 2021 29,892 2022 21,117 2023 10,368 Thereafter 25,814 Total lease payments 150,471 Less: present value adjustment (31,562 ) Total operating lease liabilities $ 118,909
Schedule of Future Minimum Operating Lease Payments	As of December 31, 2018, future minimum operating lease payments are as follows: Fiscal Year 2019 $ 36,019 2020 36,282 2021 29,272 2022 20,890 2023 10,280 Thereafter 31,066 $ 163,809

Equity Method Investments (Tabl

Equity Method Investments (Tables)	3 Months Ended
	Mar. 31, 2019
Equity Method Investments and Joint Ventures [Abstract]
Schedule of Equity Method Investments	The following table provides our net investments and the proportionate share of our equity method investments operating results: Investment Earnings from Equity Method Investments Three Months Ended March 31, 2019 December 31, 2018 March 31, 2019 2018 Proppant Express Investments, LLC $ 32,231 $ 30,870 $ 1,072 $ 1,166 Proppant Logistics LLC 7,023 6,484 44 — Total $ 39,254 $ 37,354 $ 1,116 $ 1,166

Long-Term Debt (Tables)

Long-Term Debt (Tables)	3 Months Ended
	Mar. 31, 2019
Debt Disclosure [Abstract]
Components of Long-Term Debt	Long-term debt consisted of the following: March 31, 2019 December 31, 2018 Senior Notes due 2026 $ 450,000 $ 450,000 ABL Credit Facility — — Other notes payable 3,113 4,852 Less: Unamortized debt issuance costs (9,065 ) (9,375 ) Total debt 444,048 445,477 Less: Current portion of long-term debt (1,147 ) (2,194 ) Long-term debt $ 442,901 $ 443,283

Commitments and Contingencies (

Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Schedule of Contractual Obligations	As of March 31, 2019 , future minimum purchase commitments are as follows: Fiscal Year 2019 (remaining months) $ 4,843 2020 3,383 2021 2,424 2022 2,344 2023 2,182 Thereafter 677 $ 15,853
Schedule of Changes in Fair Value of Contingent Consideration	The following table provides a summary of changes in the fair value of the contingent consideration: Balance at December 31, 2018 $ 8,147 Change in estimated fair value of contingent consideration liability 276 Balance at March 31, 2019 $ 8,423

Equity (Tables)

Equity (Tables)	3 Months Ended
	Mar. 31, 2019
Equity [Abstract]
Schedule of Common Unit Repurchases	The following table presents information with respect to repurchases of common units made by the Partnership during the periods presented, which were retired upon repurchase: Three Months Ended March 31, 2019 2018 Number of units purchased — 753,090 Average price paid per unit including commission $ — $ 12.52 Total cost $ — $ 9,426
Schedule of Distributions	On January 7, 2019 , we announced the decision of the board of directors of our general partner to suspend the quarterly distribution to common unitholders. Our most recent distributions have been as follows: Declaration Date Amount Declared Per Unit Record Date Payment Date Payment to Limited Partner Units Payment to the Holder of Incentive Distribution Rights 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 Net Income (Loss) Per Unit, Basic and Diluted	The following table provides a reconciliation of net loss and the basic and diluted, weighted average limited partner units outstanding for purposes of computing net loss per limited partner unit for the three months ended March 31, 2019 : Net loss $ (6,207 ) Basic weighted average common units outstanding 101,017,441 Potentially dilutive common units — Diluted weighted average common units outstanding 101,017,441 Loss per limited partner unit - basic $ (0.06 ) Loss per limited partner unit - diluted $ (0.06 )
Schedule of Net Income Attributable to Limited Partners	The following table provides a reconciliation of net income, the assumed allocation of net income and the basic and diluted, weighted average limited partner units outstanding under the two-class method for purposes of computing net income per limited partner unit for the three months ended March 31, 2018 : General Partner and IDRs Limited Partner Units Total Declared distribution $ — $ 19,888 $ 19,888 Assumed allocation of earnings in excess of distributions 854 32,689 33,543 Add back recast losses attributable to our sponsor and general partner — 518 518 Assumed allocation of net income $ 854 $ 53,095 $ 53,949 Basic weighted average common units outstanding 88,870,379 Potentially dilutive common units 1,302,939 Diluted weighted average common units outstanding 90,173,318 Earnings per limited partner unit - basic $ 0.60 Earnings per limited partner unit - diluted $ 0.59

Unit-Based Compensation (Tables

Unit-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2019
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, 2018 747,920 $ 5.93 Vested (97,865 ) $ 16.01 Forfeited (82,801 ) $ 4.60 Outstanding at March 31, 2019 567,254 $ 4.39
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, 2018 1,642,218 $ 8.07 Vested (70,729 ) $ 10.49 Granted 329,492 $ 3.15 Forfeited (141,560 ) $ 5.21 Outstanding at March 31, 2019 1,759,421 $ 7.28
Schedule of Unit-Based Compensation Expense	The following table presents total unit-based compensation expense: Three Months Ended March 31, 2019 2018 Performance Phantom Units $ 259 $ 343 Time-Based Phantom Units 1,257 1,239 Director unit grants 62 119 Unit Purchase Programs — 100 Total compensation expense $ 1,578 $ 1,801

Revenues (Tables)

Revenues (Tables)	3 Months Ended
	Mar. 31, 2019
Revenue from Contract with Customer [Abstract]
Disaggregated Revenues	The following table presents our revenues disaggregated by contractual relationships: Three Months Ended March 31, 2019 2018 Sales to contract customers $ 80,064 $ 164,067 Spot sales 35,027 27,417 Frac sand sales revenues 115,091 191,484 Other revenues 44,819 26,629 Total revenues $ 159,910 $ 218,113
Changes in Deferred Revenues	The following table reflect the changes in our contract liabilities, which we classify as deferred revenues: Balance at December 31, 2018 $ 29,785 Collection of prepayments 8,750 Revenues recognized (4,278 ) Customer prepayments acquired in purchase of BulkTracer 100 Impact of foreign currency translation 47 Balance at March 31, 2019 $ 34,404

Related Party Transactions (Tab

Related Party Transactions (Tables)	3 Months Ended
	Mar. 31, 2019
Related Party Transactions [Abstract]
Schedules of Related Party Transactions	The following table summarizes our related party transactions from our equity method investments (see Note 7 - Equity Method Investments ) for the periods indicated: Three Months Ended March 31, 2019 2018 Revenues - related parties $ 124 $ — Cost of goods sold - related parties (a) $ 2,001 $ 926 Equipment purchases - related parties (b) $ 1,389 $ 650 (a) The Partnership incurs lease expense for the use of PropX equipment. (b) March 31, 2019 December 31, 2018 Accounts receivable - related parties $ 101 $ — Accounts payable - related parties $ — $ 1,070 Current portion of operating lease liabilities - related parties (a) $ 5,544 $ — Operating lease liabilities - related parties (a) 11,267 — $ 16,811 $ — (a) During the first quarter of 2019, the Partnership made a lease prepayment of $3,739

Business and Organization - Nar

Business and Organization - Narrative (Details) - shares	Oct. 21, 2018	May 08, 2012
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Percentage of limited partner interest		100.00%
Hi-Crush Proppants LLC | Common Units
Business Acquisition [Line Items]
Issuance of common units for a business acquisition (in units)	11,000,000

Significant Accounting Polici_3

Significant Accounting Policies - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2019	Jan. 01, 2019	Dec. 31, 2018	Aug. 01, 2018
Accounting Policies [Abstract]
Allowance for doubtful accounts	$ 1,060,000		$ 1,060,000
Operating lease right-of-use assets	128,467,000	$ 135,480,000
Operating lease liabilities	$ 118,909,000	$ 127,018,000
Line of Credit Facility [Line Items]
Standard collection terms	30 days
Minimum
Line of Credit Facility [Line Items]
Long-term Supply Agreements, expiration year	2019
Maximum
Line of Credit Facility [Line Items]
Long-term Supply Agreements, expiration year	2024
Unsecured Debt | Senior Unsecured Notes Due 2026
Line of Credit Facility [Line Items]
Interest rate under Senior Unsecured Notes				9.50%
Fair value of the Senior Notes	$ 348,750,000
Carrying value of long term debt	$ 450,000,000		$ 450,000,000

Acquisitions - Narrative (Detai

Acquisitions - Narrative (Details) - USD ($) $ in Thousands	Jan. 18, 2019	Oct. 21, 2018	Aug. 01, 2018	Mar. 31, 2019	Mar. 31, 2018	[1]	Dec. 31, 2018
Business Acquisition [Line Items]
Business acquisition, net of cash acquired				$ 3,119	$ 0
FB Industries
Business Acquisition [Line Items]
Payments to acquire business			$ 45,000
Acquisition related costs				639
Issuance of common units for business acquisition			19,190
Business acquisition, net of cash acquired				54,975
Cash and working capital adjustment for acquisition				9,975
Total consideration to acquire business				74,165
Fair value of net assets acquired			$ 74,165
FB Industries | Common Units
Business Acquisition [Line Items]
Issuance of common units for a business acquisition (in units)			1,279,328
BulkTracer Holdings LLC
Business Acquisition [Line Items]
Payments to acquire business	$ 3,134
Acquisition related costs				$ 100
Fair value of net assets acquired	$ 3,134
Hi-Crush Proppants LLC
Business Acquisition [Line Items]
Acquisition related costs							$ 3,810
Total consideration to acquire business		$ 0
Fair value of net assets acquired		$ 865
Hi-Crush Proppants LLC | Common Units
Business Acquisition [Line Items]
Issuance of common units for a business acquisition (in units)		11,000,000
[1]	Financial information has been recast to include the results attributable to our sponsor and general partner.

Acquisitions - Fair value of Bu

Acquisitions - Fair value of BulkTracer net assets acquired (Details) - BulkTracer Holdings LLC $ in Thousands	Jan. 18, 2019USD ($)
Business Acquisition [Line Items]
Cash	$ 15
Accounts receivable	152
Property, plant and equipment	2,864
Equity method investments	289
Accounts payable	(86)
Deferred revenues	(100)
Total carrying value of net assets	$ 3,134

Acquisitions - Carrying value o

Acquisitions - Carrying value of sponsor and general partner's assets and allocation of purchase price (Details) - Hi-Crush Proppants LLC $ in Thousands	Oct. 21, 2018USD ($)
Business Acquisition [Line Items]
Cash	$ 1,314
Accounts receivable	29
Due from Hi-Crush Partners LP	1,446
Prepaid expenses and other current assets	3,132
Property, plant and equipment	2,087
Accounts payable	(2,236)
Accrued and other current liabilities	(2,562)
Current portion of long-term debt	(2,259)
Other liabilities	(86)
Total carrying value of net assets	865
Carrying value of sponsor's non-controlling interest prior to the acquiree contribution	(453,028)
Excess purchase price over the acquired interest	453,028
Cost of acquisition	$ 0

Acquisitions - Recast Financial

Acquisitions - Recast Financial Results (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Business Acquisition [Line Items]
Revenues	$ 159,910	$ 218,113	[1]
Net income (loss)		53,431
Net income (loss) attributable to Hi-Crush Partners LP	$ (6,207)	$ 53,431	[1]
Net income per limited partner unit - basic (usd per unit)	$ (0.06)	$ 0.60	[1]
Net income per limited partner unit - basic, pro forma (usd per unit)		$ 0.59
Historical
Business Acquisition [Line Items]
Revenues		$ 218,113
Net income (loss)		53,949
Net income (loss) attributable to Hi-Crush Partners LP		53,949
Adjustment | Eliminations
Business Acquisition [Line Items]
Revenues		0
Net income (loss)		0
Net income (loss) attributable to Hi-Crush Partners LP		0
Hi-Crush Proppants LLC | Adjustment
Business Acquisition [Line Items]
Revenues		0
Net income (loss)		(518)
Net income (loss) attributable to Hi-Crush Partners LP		$ (518)
[1]	Financial information has been recast to include the results attributable to our sponsor and general partner.

Acquisitions - Fair value of FB

Acquisitions - Fair value of FB Industries net assets acquired (Details) - FB Industries - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Aug. 01, 2018
Business Acquisition [Line Items]
Cash			$ 20,015
Accounts receivable			3,469
Inventories			13,416
Goodwill and intangible assets			70,238
Prepaid expenses and other current assets			2,202
Property, plant and equipment			1,868
Accounts payable			(1,628)
Deferred revenues			(13,004)
Accrued and other current liabilities			(13,988)
Contingent consideration	$ (8,423)	$ (8,147)	(8,423)
Total carrying value of net assets			$ 74,165

Inventories - Components of Inv

Inventories - Components of Inventories (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Inventory Disclosure [Abstract]
Raw material	$ 572	$ 512
Work-in-process	19,890	29,180
Finished goods	21,284	24,872
Spare parts	2,654	2,525
Inventories	$ 44,400	$ 57,089

Property, Plant and Equipment -

Property, Plant and Equipment - Components of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 1,179,697	$ 1,158,713
Less: Accumulated depreciation and depletion	(137,347)	(127,525)
Property, plant and equipment, net	1,042,350	1,031,188
Buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment	32,766	32,751
Mining property and mine development
Property, Plant and Equipment [Line Items]
Property, plant and equipment	390,888	390,296
Plant and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment	474,737	472,892
Rail and rail equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment	55,913	55,913
Transload facilities and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment	119,390	118,982
Last mile equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment	67,833	66,083
Construction-in-progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 38,170	$ 21,796

Property, Plant and Equipment_2

Property, Plant and Equipment - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Property, Plant and Equipment [Abstract]
Depreciation and depletion	$ 11,500	$ 7,903	[1]
Gain (loss) on disposal of fixed assets	$ (123)	$ 24
[1]	Financial information has been recast to include the results attributable to our sponsor and general partner.

Leases - Narrative (Details)

Leases - Narrative (Details)	Mar. 31, 2019
Minimum
Operating Leased Assets [Line Items]
Operating leases remaining term of contract	1 year 1 month 6 days
Maximum
Operating Leased Assets [Line Items]
Operating leases remaining term of contract	9 years 3 months 18 days

Leases - Supplemental Balance S

Leases - Supplemental Balance Sheet Information Related to Leases (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Jan. 01, 2019
Leases [Abstract]
Operating lease right-of-use assets	$ 128,467	$ 135,480
Current portion of operating lease liabilities	33,609
Operating lease liabilities	85,300
Total operating lease liabilities	$ 118,909	$ 127,018

Leases - Schedule of the Weight

Leases - Schedule of the Weighted Average Remaining Lease Term (Details)	Mar. 31, 2019
Leases [Abstract]
Weighted average remaining lease term	5 years 2 months 12 days
Weighted average discount rate	9.50%

Leases - Schedule of Operating

Leases - Schedule of Operating Lease Expense (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Operating Leased Assets [Line Items]
Total lease cost	$ 11,515
Cost of Goods Sold
Operating Leased Assets [Line Items]
Operating lease cost	9,937
Short-term lease cost	1,360
Total lease cost	11,297
General and Administrative Expense
Operating Leased Assets [Line Items]
Operating lease cost	64
Short-term lease cost	154
Total lease cost	$ 218

Leases - Schedule of Supplement

Leases - Schedule of Supplemental Cash Flow Information Related to Leases (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Leases [Abstract]
Cash paid for amounts included in the measurement of lease liabilities	$ 12,583
Noncash information on lease liabilities arising from obtaining right-of-use assets	$ 135,480

Leases - Schedule of Maturities

Leases - Schedule of Maturities of Operating Lease Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Jan. 01, 2019
Leases [Abstract]
Operating lease liability, future maturities, remainder of fiscal year	$ 26,111
Operating lease liability, future maturities, due in second year	37,169
Operating lease liability, future maturities, due in third year	29,892
Operating lease liability, future maturities, due in fourth year	21,117
Operating lease liability, future maturities, due in fifth year	10,368
Operating lease liability, future maturities, due thereafter	25,814
Operating lease liability, future maturities	150,471
Less: present value adjustment	(31,562)
Total operating lease liabilities	$ 118,909	$ 127,018

Leases - Schedule of Contractua

Leases - Schedule of Contractual Obligations (Details) $ in Thousands	Dec. 31, 2018USD ($)
Leases [Abstract]
Operating leases, future minimum payments, next twelve months	$ 36,019
Operating leases, future minimum payments, due in two years	36,282
Operating leases, future minimum payments, due in three years	29,272
Operating leases, future minimum payments, due in four years	20,890
Operating leases, future minimum payments, due in five years	10,280
Operating leases, future minimum payments, due thereafter	31,066
Operating leases	$ 163,809

Equity Method Investments - Sch

Equity Method Investments - Schedule of Equity Method Investments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018		Dec. 31, 2018
Schedule of Equity Method Investments [Line Items]
Investment in equity method investments	$ 39,254			$ 37,354
Earnings from equity method investments	1,116	$ 1,166	[1]
Proppant Express Investments, LLC
Schedule of Equity Method Investments [Line Items]
Investment in equity method investments	32,231			30,870
Earnings from equity method investments	1,072	1,166
Proppant Logistics, LLC
Schedule of Equity Method Investments [Line Items]
Investment in equity method investments	7,023			$ 6,484
Earnings from equity method investments	$ 44	$ 0
[1]	Financial information has been recast to include the results attributable to our sponsor and general partner.

Equity Method Investments - Nar

Equity Method Investments - Narrative (Details) - USD ($) $ in Thousands	Oct. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Schedule of Equity Method Investments [Line Items]
Payments to Acquire Equity Method Investments		$ 495	$ 0	[1]
Proppant Express Investments, LLC
Schedule of Equity Method Investments [Line Items]
Payments to Acquire Equity Method Investments		0	$ 0
Equity method investment ownership interest acquired in business acquisition		289
Proppant Logistics, LLC
Schedule of Equity Method Investments [Line Items]
Payments to Acquire Equity Method Investments	$ 6,600	$ 495
[1]	Financial information has been recast to include the results attributable to our sponsor and general partner.

Long-Term Debt - Components of

Long-Term Debt - Components of Long-Term Debt (Details) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Total debt	$ 444,048,000	$ 445,477,000
Less: Current portion of long-term debt	(1,147,000)	(2,194,000)
Long-term debt	442,901,000	443,283,000
$200M ABL Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Partnership debt	0	0
Unsecured Debt | Senior Unsecured Notes Due 2026
Debt Instrument [Line Items]
Partnership debt	450,000,000	450,000,000
Less: Unamortized debt issuance costs	(9,065,000)	(9,375,000)
Total debt	440,935,000
Other notes payable
Debt Instrument [Line Items]
Partnership debt	$ 3,113,000	$ 4,852,000

Long-Term Debt - Narrative (Det

Long-Term Debt - Narrative (Details) - USD ($)	Aug. 01, 2018	Apr. 30, 2019	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018	Dec. 31, 2016
Line of Credit Facility [Line Items]
Partnership debt			$ 444,048,000		$ 445,477,000
Letter of credit commitments			21,967,000
Other notes payable
Line of Credit Facility [Line Items]
Carrying value of long term debt			3,113,000		4,852,000
Prepayments made by Partnership on promissory notes			694,000	$ 957,000
Other notes payable | Subsequent Event
Line of Credit Facility [Line Items]
Prepayments made by Partnership on promissory notes		$ 691,000
Promissory Note Due In August 2021 | Other notes payable
Line of Credit Facility [Line Items]
Partnership debt					$ 3,676,000
Carrying value of long term debt			2,657,000
Terms of promissory note issued					3 years
Effective interest rate					2.42%
Senior Unsecured Notes Due 2026 | Unsecured Debt
Line of Credit Facility [Line Items]
Senior unsecured notes due 2026	$ 450,000,000
Interest rate under Senior Unsecured Notes	9.50%
Debt instrument redemption percentage upon change of control	101.00%
Partnership debt			440,935,000
Unamortized debt issuance costs in long-term debt			9,065,000		$ 9,375,000
Carrying value of long term debt			450,000,000		450,000,000
$200M ABL Facility | Revolving Credit Facility
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 200,000,000		77,131,000
Line of credit facility, increase in commitment amount	300,000,000
Undrawn borrowing capacity			55,164,000
Carrying value of long term debt			$ 0		$ 0
$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
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
Effective interest rate						0.74%
Insurance premium financing | Other notes payable
Line of Credit Facility [Line Items]
Carrying value of long term debt			$ 456,000
Insurance premium financing | Other notes payable | Minimum
Line of Credit Facility [Line Items]
Effective interest rate			4.99%
Insurance premium financing | Other notes payable | Maximum
Line of Credit Facility [Line Items]
Effective interest rate			6.29%
On or after August 1, 2021 | Senior Unsecured Notes Due 2026 | Unsecured Debt
Line of Credit Facility [Line Items]
Debt instrument redemption percentage with payment of premium and interest	100.00%
Prior to August 1, 2021 | Senior Unsecured Notes Due 2026 | Unsecured Debt
Line of Credit Facility [Line Items]
Debt instrument redemption percentage	109.50%
Debt instrument redemption percentage with payment of premium and interest	100.00%
Prior to August 1, 2021 | Senior Unsecured Notes Due 2026 | Unsecured Debt | Maximum
Line of Credit Facility [Line Items]
Percentage of aggregate principal amount that can be redeemed	35.00%

Commitments and Contingencies -

Commitments and Contingencies - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018	Aug. 01, 2018
Long-term Purchase Commitment [Line Items]
Payments for non-delivery of minimum annual sand volumes	$ 0
Royalty expense	$ 1,471,000	$ 3,540,000
Property value guarantees, sale period threshold	180 days
Property value guaranty purchases	$ 3,085,000
FB Industries
Long-term Purchase Commitment [Line Items]
Business acquisition, estimated fair value contingent consideration to pay	8,423,000		$ 8,147,000	$ 8,423,000
Estimated fair value of contingent consideration, current portion	192,000
Sensitivity Analysis of Fair Value of Contingent Consideration, Impact of 50 Percent Change in Assumptions	$ 3,040,000
Minimum
Long-term Purchase Commitment [Line Items]
Initial terms of contracted minimum sand volumes	1 year
Minimum | FB Industries
Long-term Purchase Commitment [Line Items]
Sensitivity analysis of fair value of contingent consideration, impact of 10 percent change in assumptions	$ 6,456,000
Maximum
Long-term Purchase Commitment [Line Items]
Initial terms of contracted minimum sand volumes	7 years
Maximum | FB Industries
Long-term Purchase Commitment [Line Items]
Sensitivity analysis of fair value of contingent consideration, impact of 10 percent change in assumptions	$ 10,555,000

Commitments and Contingencies_2

Commitments and Contingencies - Schedule of Contractual Obligations (Details) $ in Thousands	Mar. 31, 2019USD ($)
Minimum Purchase Commitments
Minimum purchase commitments, remainder of fiscal year	$ 4,843
Minimum purchase commitments, due in second year	3,383
Minimum purchase commitments, due in third year	2,424
Minimum purchase commitments, due in fourth year	2,344
Minimum purchase commitments, due in fifth year	2,182
Minimum purchase commitments, due thereafter	677
Minimum Purchase Commitments	$ 15,853

Commitments and Contingencies_3

Commitments and Contingencies - Schedule of Contingent Consideration (Details) - FB Industries $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Business Acquisition, Contingent Consideration [Line Items]
Estimated fair value contingent consideration to pay, beginning of period	$ 8,147
Change in estimated fair value of contingent consideration liability	276
Estimated fair value contingent consideration to pay, end of period	$ 8,423

Equity - Narrative (Details)

Equity - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands		Jan. 04, 2017	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Oct. 17, 2017
Class of Stock [Line Items]
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)			0	1,302,939
Distributions to members of Hi-Crush Proppants LLC	[1]			$ 24,838
General Partner and IDRs
Class of Stock [Line Items]
Net income allocated to holder of incentive distribution rights				$ 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%
Hi-Crush Partners LP Long Term Incentive Plan
Class of Stock [Line Items]
Potentially dilutive awards granted and outstanding excluded from diluted earnings per unit calculation (in units)			2,326,675
Weighted average potentially dilutive common units outstanding (in units)			2,326,675	1,302,939
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	$ 9,426	$ 29,426
Repurchase of common units, remaining authorized amount			$ 70,574		$ 70,574
October 2017 Unit Repurchase Plan | Common Units
Class of Stock [Line Items]
Number of common units repurchased, cumulative (in units)			0	753,090	2,783,253
[1]	Financial information has been recast to include the results attributable to our sponsor and general partner.

Equity - Unit Buyback Program (

Equity - Unit Buyback Program (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		17 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019
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	$ 12.52
Repurchase of common units	$ 0	$ 9,426	$ 29,426
October 2017 Unit Repurchase Plan | Common Units
Capital Unit [Line Items]
Number of common units repurchased (in units)	0	753,090	2,783,253

Equity - Distributions (Details

Equity - Distributions (Details) - USD ($) $ / shares in Units, $ in Thousands	Nov. 14, 2018	Oct. 21, 2018	Aug. 14, 2018	Jul. 20, 2018	May 15, 2018	Apr. 18, 2018	Feb. 13, 2018	Jan. 17, 2018	Mar. 31, 2018
Distribution Made to Limited Partner [Line Items]
Amount Declared Per Unit (usd per unit)									$ 0.20
Limited Partner
Distribution Made to Limited Partner [Line Items]
Amount Declared Per Unit (usd per unit)		$ 0.2250		$ 0.7500		$ 0.2250		$ 0.2000
Payment to Limited Partner Units	$ 22,695		$ 67,253		$ 19,888		$ 17,809
General Partner and IDRs
Distribution Made to Limited Partner [Line Items]
Payment to the Holder of Incentive Distribution Rights	$ 0		$ 7,664		$ 0		$ 0		$ 0

Equity - Schedule of Earnings P

Equity - Schedule of Earnings Per Unit, Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Equity [Abstract]
Net income (loss)	$ (6,207)	$ 53,431	[1]
Weighted average limited partner units outstanding, basic (in units)	101,017,441	88,870,379	[1]
Weighted average potentially dilutive common units outstanding (in units)	0	1,302,939
Weighted average limited partner units outstanding, diluted (in units)	101,017,441	90,173,318	[1]
Earnings (loss) per limited partner unit - basic (usd per unit)	$ (0.06)	$ 0.60	[1]
Earnings (loss) per limited partner unit - diluted (usd per unit)	$ (0.06)	$ 0.59	[1]
[1]	Financial information has been recast to include the results attributable to our sponsor and general partner.

Equity - Schedule of Net Income

Equity - Schedule of Net Income Attributable to Limited Partners (Details) - USD ($) $ / shares in Units, $ in Thousands	Nov. 14, 2018	Aug. 14, 2018	May 15, 2018	Feb. 13, 2018	Mar. 31, 2019	Mar. 31, 2018
Distribution Made to Limited Partner [Line Items]
Declared distribution to Limited Partner Units						$ 19,888
Assumed allocation of earning in excess of distributions						33,543
Assumed allocation of net income to Limited Partners						$ 53,949
Weighted average limited partner units outstanding, basic (in units)					101,017,441	88,870,379	[1]
Weighted average potentially dilutive common units outstanding (in units)					0	1,302,939
Weighted average limited partner units outstanding, diluted (in units)					101,017,441	90,173,318	[1]
Earnings (loss) per limited partner unit - basic (usd per unit)					$ (0.06)	$ 0.60	[1]
Earnings (loss) per limited partner unit - diluted (usd per unit)					$ (0.06)	$ 0.59	[1]
Hi-Crush Proppants LLC
Distribution Made to Limited Partner [Line Items]
Add back recast losses attributable to assets contributed by the sponsor						$ 518
Common Units
Distribution Made to Limited Partner [Line Items]
Declared distribution to Limited Partner Units						19,888
Assumed allocation of earning in excess of distributions						32,689
Assumed allocation of net income to Limited Partners						53,095
Common Units | Hi-Crush Proppants LLC
Distribution Made to Limited Partner [Line Items]
Add back recast losses attributable to assets contributed by the sponsor						518
General Partner and IDRs
Distribution Made to Limited Partner [Line Items]
Payment to the Holder of Incentive Distribution Rights	$ 0	$ 7,664	$ 0	$ 0		0
Assumed allocation of earning in excess of distributions						854
Assumed allocation of net income to General Partner and IDRs						$ 854
[1]	Financial information has been recast to include the results attributable to our sponsor and general partner.

Unit-Based Compensation - Narra

Unit-Based Compensation - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Sep. 21, 2016
Common Units | Directors
Class of Stock [Line Items]
Number of common units issued to directors	62,184	36,109
Unit Purchase Programs
Class of Stock [Line Items]
Discount of fair value on common units from the applicable election date	15.00%
Hi-Crush Partners LP Long Term Incentive Plan | Performance Phantom Units
Class of Stock [Line Items]
Award vesting period	3 years
Number of common unit of each award	1
Total compensation expense not yet recognized	$ 1,863
Weighted average remaining service period	2 years 2 months 12 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	$ 8,096
Weighted average remaining service period	2 years 1 month 6 days
Hi-Crush Partners LP Long Term Incentive Plan | Common Units
Class of Stock [Line Items]
Number of common units authorized under the Plan			4,064,035

Unit-Based Compensation - Perfo

Unit-Based Compensation - Performance Phantom Units (Details) - Hi-Crush Partners LP Long Term Incentive Plan - Performance Phantom Units	3 Months Ended
	Mar. 31, 2019$ / sharesshares
Performance Phantom Units
Outstanding units at beginning of period | shares	747,920
Vested units | shares	(97,865)
Forfeited units | shares	(82,801)
Outstanding units at end of period | shares	567,254
Grant Date Weighted-Average Fair Value per Unit
Outstanding units at beginning of period (usd per unit) | $ / shares	$ 5.93
Vested (usd per unit) | $ / shares	16.01
Forfeited (usd per unit) | $ / shares	4.60
Outstanding units at end of period (usd per unit) | $ / shares	$ 4.39

Unit-Based Compensation - Time-

Unit-Based Compensation - Time-Based Phantom Units (Details) - Hi-Crush Partners LP Long Term Incentive Plan - Time-Based Phantom Units	3 Months Ended
	Mar. 31, 2019$ / sharesshares
Time-Based Phantom Units
Outstanding units at beginning of period | shares	1,642,218
Vested units | shares	(70,729)
Granted units | shares	329,492
Forfeited units | shares	(141,560)
Outstanding units at end of period | shares	1,759,421
Grant Date Weighted-Average Fair Value per Unit
Outstanding units at beginning of period (usd per unit) | $ / shares	$ 8.07
Vested (usd per unit) | $ / shares	10.49
Granted (usd per unit) | $ / shares	3.15
Forfeited (usd per unit) | $ / shares	5.21
Outstanding units at end of period (usd per unit) | $ / shares	$ 7.28

Unit-Based Compensation - Total

Unit-Based Compensation - Total Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Compensation Expense [Line Items]
Total compensation expense	$ 1,578	$ 1,801
Performance Phantom Units
Compensation Expense [Line Items]
Total compensation expense	259	343
Time-Based Phantom Units
Compensation Expense [Line Items]
Total compensation expense	1,257	1,239
Director unit grants
Compensation Expense [Line Items]
Total compensation expense	62	119
Unit Purchase Programs
Compensation Expense [Line Items]
Total compensation expense	$ 0	$ 100

Revenues - Narrative (Details)

Revenues - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Disaggregation of Revenue [Line Items]
Deferred revenues	$ 34,404	$ 29,785
Expected period to recognize deferred revenues over	1 year 4 months 24 days
Minimum
Disaggregation of Revenue [Line Items]
Long-term Supply Agreements, expiration year	2019
Maximum
Disaggregation of Revenue [Line Items]
Long-term Supply Agreements, expiration year	2024

Revenues - Revenues Disaggregat

Revenues - Revenues Disaggregated by Contractual Obligations (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Disaggregation of Revenue [Line Items]
Total revenues	$ 159,910	$ 218,113
Frac sand sales revenues
Disaggregation of Revenue [Line Items]
Total revenues	115,091	191,484
Sales to contract customers
Disaggregation of Revenue [Line Items]
Total revenues	80,064	164,067
Spot sales
Disaggregation of Revenue [Line Items]
Total revenues	35,027	27,417
Other revenues
Disaggregation of Revenue [Line Items]
Total revenues	$ 44,819	$ 26,629

Revenues - Deferred Revenues (D

Revenues - Deferred Revenues (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Business Acquisition [Line Items]
Deferred revenues, at beginning of period	$ 29,785
Collection of prepayments	8,750
Revenues recognized	(4,278)
Impact of foreign currency translation	47
Deferred revenues, at end of period	34,404
BulkTracer Holdings LLC
Business Acquisition [Line Items]
Customer prepayments acquired in purchase of BulkTracer	$ 100

Related Party Transactions - Na

Related Party Transactions - Narrative (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Related Party Transactions [Abstract]
Lease expense prepayment, related party	$ 3,739

Related Party Transactions - Sc

Related Party Transactions - Schedule of Related Party Transactions (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Equity Method Investees
Related Party Transaction [Line Items]
Revenues - related parties		$ 124	$ 0
Proppant Express Investments, LLC
Related Party Transaction [Line Items]
Cost of goods sold - related parties	[1]	2,001	926
Equipment purchases - related parties	[2]	$ 1,389	$ 650
[1]	The Partnership incurs lease expense for the use of PropX equipment.
[2]	The Partnership purchases equipment from PropX, which is reflected in property, plant and equipment on our Condensed Consolidated Balance Sheet.

Related Party Transactions - _2

Related Party Transactions - Schedule of Related Party Balance Sheet Components (Details) - USD ($) $ in Thousands		Mar. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Related Party Transaction [Line Items]
Current portion of operating lease liabilities (Note 6)		$ 33,609
Operating lease liabilities (Note 6)		85,300
Operating lease liabilities		118,909	$ 127,018
Equity Method Investees
Related Party Transaction [Line Items]
Accounts receivable - related parties		101		$ 0
Accounts payable - related parties		0		1,070
Proppant Express Investments, LLC
Related Party Transaction [Line Items]
Current portion of operating lease liabilities (Note 6)	[1]	5,544		0
Operating lease liabilities (Note 6)	[1]	11,267		0
Operating lease liabilities		$ 16,811		$ 0
[1]	During the first quarter of 2019, the Partnership made a lease prepayment of $3,739

Segment Reporting - Narrative (

Segment Reporting - Narrative (Details)	3 Months Ended
	Mar. 31, 2019segment
Segment Reporting [Abstract]
Number of operating segments	1

Subsequent Events - Narrative (

Subsequent Events - Narrative (Details) - USD ($) $ in Thousands	Oct. 31, 2018	Jun. 30, 2019	Mar. 31, 2019	Mar. 31, 2018	[1]	Dec. 31, 2018
Subsequent Event [Line Items]
Previous investment made			$ 495	$ 0
Proppant Logistics, LLC
Subsequent Event [Line Items]
Ownership interest acquired (percent)						66.00%
Proppant Logistics, LLC | Subsequent Event
Subsequent Event [Line Items]
Ownership interest acquired (percent)		34.00%
Payments to acquire ownership interest		$ 2,951
Issuance of common units for a business acquisition (in units)		695,606
Proppant Logistics, LLC
Subsequent Event [Line Items]
Previous investment made	$ 6,600		$ 495
[1]	Financial information has been recast to include the results attributable to our sponsor and general partner.