Hi-Crush (HCR) 10-K20 Feb 192018 FY Annual reportFinancial data

Company Profile

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
Document and Entity Information - USD ($)	Dec. 31, 2018	Feb. 14, 2019	Jun. 30, 2018
Document And Entity Information [Abstract]
Entity Registrant Name	Hi-Crush Partners LP
Trading Symbol	HCLP
Entity Central Index Key	1,549,848
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-K
Document Period End Date	Dec. 31, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Common Stock, Shares Outstanding		101,062,399
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$ 932,956,946

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	[1]
Current assets:
Cash	$ 114,256	$ 7,724
Accounts receivable, net (Note 3)	101,029	139,486
Inventories (Note 5)	57,089	44,272
Prepaid expenses and other current assets	13,239	4,969
Total current assets	285,613	196,451
Property, plant and equipment, net (Note 6)	1,031,188	900,010
Goodwill and intangible assets, net (Note 7)	71,575	8,416
Equity method investments (Note 8)	37,354	17,475
Other assets	8,108	5,877
Total assets	1,433,838	1,128,229
Current liabilities:
Accounts payable	71,039	48,289
Accrued and other current liabilities (Note 9)	61,337	33,450
Current portion of deferred revenues (Note 15)	19,940	4,399
Current portion of long-term debt (Note 10)	2,194	4,140
Total current liabilities	154,510	90,278
Deferred revenues (Note 15)	9,845	7,384
Long-term debt (Note 10)	443,283	194,462
Asset retirement obligations (Note 11)	10,677	10,179
Other liabilities (Note 12)	8,276	156
Total liabilities	626,591	302,459
Commitments and contingencies (Note 12)
Equity and partners' capital:
Limited partners interest, 100,874,988 and 89,009,188 units outstanding, respectively	811,477	1,239,282
Accumulated other comprehensive loss	(4,230)	0
Total partners' capital	807,247	1,239,282
Non-controlling interest	0	(413,512)
Total equity and partners' capital	807,247	825,770
Total liabilities, equity and partners' capital	$ 1,433,838	$ 1,128,229

[1]	Financial information has been recast to include the financial position and results attributable to our sponsor and general partner.

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - shares	Dec. 31, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Limited partners interest, units outstanding	100,874,988	89,009,188

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	[1]	Dec. 31, 2016	[1],[2]
Income Statement [Abstract]
Revenues (Note 15)	$ 842,840	$ 602,623		$ 204,430
Cost of goods sold (excluding depreciation, depletion and amortization)	577,974	438,348		188,308
Depreciation, depletion and amortization	38,284	29,449		17,032
Gross profit (loss)	226,582	134,826		(910)
Operating costs and expenses:
General and administrative expenses	59,328	43,667		36,807
Accretion of asset retirement obligations	498	458		430
Impairments and other operating expenses (Note 17)	2,765	865		34,025
Other operating income	0	(3,554)		0
Income (loss) from operations	163,991	93,390		(72,172)
Other income (expense):
Earnings from equity method investments (Note 8)	5,184	75		0
Interest expense	(25,347)	(12,971)		(20,853)
Loss on extinguishment of debt	(6,233)	(4,332)		0
Net income (loss)	$ 137,595	$ 76,162		$ (93,025)
Earnings (loss) per limited partner unit:
Earnings (loss) per limited partner unit - basic (usd per unit)	$ 1.46	$ 0.97		$ (1.64)
Earnings (loss) per limited partner unit - diluted (usd per unit)	$ 1.42	$ 0.96		$ (1.64)
Weighted average limited partner units outstanding, basic (in units)	91,248,042	86,518,249		49,567,268
Weighted average limited partner units outstanding, diluted (in units)	93,638,180	87,900,982		49,567,268
Distribution declared per limited partner unit (usd per unit)	$ 1.20	$ 0.35		$ 0

[1]	Financial information has been recast to include the financial position and results attributable to our sponsor and general partner.
[2]	Financial information has been recast to include the results attributable to Hi-Crush Whitehall LLC and Other Assets.

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	[1]	Dec. 31, 2016	[1],[2]
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 137,595	$ 76,162		$ (93,025)
Foreign currency translation adjustment	(4,230)	0		0
Comprehensive income (loss)	$ 133,365	$ 76,162		$ (93,025)

[1]	Financial information has been recast to include the financial position and results attributable to our sponsor and general partner.
[2]	Financial information has been recast to include the results attributable to Hi-Crush Whitehall LLC and Other Assets.

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017		Dec. 31, 2016	[2]
Operating activities:
Net income (loss)		$ 137,595	$ 76,162	[1]	$ (93,025)	[1]
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and depletion		38,775	29,872	[1]	17,616	[1]
Amortization of intangible assets		3,374	1,681	[1]	1,682	[1]
Loss on impairments of goodwill		0	0	[1]	33,745	[1]
Provision for doubtful accounts		0	0	[1]	8,236	[1]
Unit-based compensation to directors and employees		7,439	5,714	[1]	2,620	[1]
Amortization of loan origination costs into interest expense		1,164	2,022	[1]	3,678	[1]
Accretion of asset retirement obligations		498	458	[1]	430	[1]
Accrued interest converted to debt		0	528	[1]	2,112	[1]
(Gain) loss on disposal of property, plant and equipment		369	92	[1]	(357)	[1]
Earnings from equity method investments		(5,184)	(75)	[1]	0	[1]
Loss on extinguishment of debt		6,233	4,332	[1]	0	[1]
Changes in operating assets and liabilities:
Accounts receivable		41,237	(86,652)	[1]	(19,593)	[1]
Inventories		1,556	(14,529)	[1]	7,081	[1]
Prepaid expenses and other current assets		(6,670)	(542)	[1]	2,139	[1]
Other assets		(1,301)	2,112	[1]	1,337	[1]
Accounts payable		(5,193)	26,282	[1]	1,188	[1]
Accrued and other current liabilities		11,066	24,788	[1]	(773)	[1]
Deferred revenues		6,372	11,783	[1]	0	[1]
Deferred rent		(27)	(53)	[1]	(48)	[1]
Net cash provided by (used in) operating activities		237,303	83,975	[1]	(31,932)	[1]
Investing activities:
Capital expenditures for property, plant and equipment		(141,546)	(122,246)	[1]	(45,714)	[1]
Proceeds from sale of property, plant and equipment		3,064	8	[1]	1,403	[1]
Business acquisition, net of cash acquired		(34,960)	0	[1]	0	[1]
Asset acquisition		0	(200,830)	[1]	0	[1]
Equity method investments		(14,695)	(7,168)	[1]	(10,232)	[1]
Restricted cash, net		0	5,116	[1]	2,390	[1]
Net cash used in investing activities		(188,137)	(325,120)	[1]	(52,153)	[1]
Financing activities:
Proceeds from equity issuances, net		0	412,577	[1]	189,037	[1]
Transaction costs associated with equity issuances		0	0	[1]	3	[1]
Proceeds from issuance of long-term debt		450,000	198,000	[1]	17,000	[1]
Repayment of long-term debt		(203,378)	(259,791)	[1]	(136,401)	[1]
Proceeds from insurance premium notes		4,153	3,156	[1]	2,442	[1]
Repayment of premium financing notes		(3,836)	(2,713)	[1]	(2,886)	[1]
Loan origination costs		(12,067)	(4,731)	[1]	(138)	[1]
Contributions (withdrawals) from unit purchase program participants		(438)	438	[1]	111	[1]
Repurchase of common units		(9,426)	(20,000)	[1]	0	[1]
Redemption of common units		(70)	0	[1]	0	[1]
Payment of accrued distribution equivalent rights		(410)	(39)	[1]	0	[1]
Distributions paid to members of Hi-Crush Proppants LLC		(39,516)	(69,215)	[1]	0	[1]
Distributions paid to limited partner unitholders		(127,645)	(13,656)	[1]	0	[1]
Net cash provided by financing activities		57,367	244,026	[1]	69,168	[1]
Effects of exchange rate on cash		(1)	0	[1]	0	[1]
Net increase (decrease) in cash		106,532	2,881	[1]	(14,917)	[1]
Cash at beginning of period	[1]	7,724	4,843	[2]	19,760
Cash at end of period		114,256	7,724	[1]	4,843	[1]
Non-cash investing and financing activities:
Increase (decrease) in accounts payable and accrued liabilities for additions to property, plant and equipment		26,333	2,253	[1]	(8,125)	[1]
Increase in property, plant and equipment for asset retirement obligations		0	207	[1]	373	[1]
Debt financed capital expenditures		3,676	0	[1]	3,676	[1]
Estimated fair value of contingent consideration liability		8,147	0	[1]	0	[1]
Issuance of units for acquisitions		19,190	62,242	[1]	0	[1]
Issuance of units under unit purchase programs		0	1,576	[1]	0	[1]
Increase (decrease) in accrued distribution equivalent rights		1,860	45	[1]	(88)	[1]
Cash paid for interest		$ 6,224	$ 10,950	[1]	$ 17,175	[1]

[1]	Financial information has been recast to include the financial position and results attributable to our sponsor and general partner.
[2]	Financial information has been recast to include the results attributable to Hi-Crush Whitehall LLC and Other Assets.

Consolidated Statements of Part

Consolidated Statements of Partners' Capital - USD ($)		Total		Limited Partner Capital	Noncontrolling Interest	Accumulated Other Comprehensive Income (Loss)
Partners' Capital, beginning balance at Dec. 31, 2015		$ 271,644,000		$ 340,719,000	$ (69,075,000)
Increase (Decrease) in Partners' Capital
Issuance of common units, net		189,037,000		189,037,000
Transaction costs associated with equity issuances	[1]	3,000			3,000
Issuance of common units to directors and employees		453,000		453,000
Unit-based compensation expense		2,146,000		2,146,000
Cash distribution paid to members of Hi-Crush Proppants LLC		0
Forfeiture of distribution equivalent rights		88,000		88,000
Net income (loss)	[1],[2]	(93,025,000)		(93,025,000)	0
Partners' Capital, ending balance at Dec. 31, 2016		370,346,000		439,418,000	(69,072,000)
Increase (Decrease) in Partners' Capital
Issuance of common units, net		412,577,000		412,577,000
Issuance of common units for asset acquisition		62,242,000		62,242,000
Issuance of common units to directors and employees		2,144,000		2,144,000
Repurchase of common units		(20,000,000)		(20,000,000)
Unit-based compensation expense		5,215,000		5,215,000
Distribution of common units to members of Hi-Crush Proppants LLC	[1]	0		275,225,000	(275,225,000)
Cash distribution paid to members of Hi-Crush Proppants LLC	[1]	(69,215,000)			(69,215,000)
Distributions, including distribution equivalent rights		(13,808,000)		(13,808,000)
Forfeiture of distribution equivalent rights		107,000		107,000
Net income (loss)	[1]	76,162,000		76,162,000	0
Partners' Capital, ending balance at Dec. 31, 2017		825,770,000	[1]	1,239,282,000	(413,512,000)	$ 0
Increase (Decrease) in Partners' Capital
Issuance of common units for business acquisition		19,190,000		19,190,000
Issuance of common units to directors and employees		474,000		474,000
Repurchase of common units		(9,426,000)		(9,426,000)
Redemption of common units		(70,000)		(70,000)
Unit-based compensation expense		6,965,000		6,965,000
Cash distribution paid to members of Hi-Crush Proppants LLC	[1]	(39,516,000)			(39,516,000)
Distributions, including distribution equivalent rights		(129,505,000)		(129,505,000)
Acquisition of Hi-Crush Proppants LLC and Hi-Crush GP LLC		0		(453,028,000)	453,028,000
Other comprehensive loss		(4,230,000)				(4,230,000)
Net income (loss)		137,595,000		137,595,000	0
Partners' Capital, ending balance at Dec. 31, 2018		$ 807,247,000		$ 811,477,000	$ 0	$ (4,230,000)

[1]	Financial information has been recast to include the financial position and results attributable to our sponsor and general partner.
[2]	Financial information has been recast to include the results attributable to Hi-Crush Whitehall LLC and Other Assets.

Consolidated Statements of Pa_2

Consolidated Statements of Partners' Capital (Parenthetical) - shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement of Partners' Capital [Abstract]
Number of common units issued to directors and employees (in units)	36,109	329,238	103,377
Number of common units issued (in units)		23,575,000	19,550,000
Number of common units issued for a business acquisition (in units)	1,279,328
Number of common units issued for an asset acquisition (in units)		3,438,789
Number of common units repurchased (in units)	753,090	2,030,163
Number of common units distributed to members of Hi-Crush Proppants LLC (in units)		20,693,643
Number of common units redeemed (in units)	5,799

Business and Organization

Business and Organization	12 Months Ended
Business and Organization	Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Business and Organization	Business and Organization Hi-Crush Partners LP (together with its subsidiaries, the "Partnership," "we," "us" or "our") 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 31, 2016, the Partnership acquired from its sponsor all of the outstanding membership interests in Hi-Crush Blair LLC ("Blair"), the entity that owned our sponsor's Blair facility (the "Blair Contribution"). On March 15, 2017, the Partnership acquired from its sponsor all of the outstanding membership interests in Hi-Crush Whitehall LLC ("Whitehall"), the entity that owned our sponsor’s Whitehall facility, the remaining 2.0% equity interest in Hi-Crush Augusta LLC ("Augusta"), and all of the outstanding membership interests in PDQ Properties LLC (together, the "Other Assets") (the "Whitehall Contribution"). On March 3, 2017, the Partnership completed an acquisition of Permian Basin Sand Company, LLC ("Permian Basin Sand"). With the acquisition of Permian Basin Sand, we acquired a 1,226 -acre frac sand reserve, located near Kermit, Texas, strategically positioned in the Permian Basin. 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. Refer to Note 4 - Acquisitions

Basis of Presentation

Basis of Presentation	12 Months Ended
Basis of Presentation	Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The Sponsor Contribution, Blair Contribution and Whitehall Contribution were accounted for as transactions between entities under common control whereby the net assets of our sponsor and general partner and Blair, Whitehall and Other Assets were recorded at their historical cost. Therefore, the Partnership's historical financial information has been recast to combine our sponsor and general partner, Blair, Whitehall and Other Assets with the Partnership as if the combination had been in effect since inception of the common control. Refer to Note 4 - Acquisitions for additional disclosure regarding the Sponsor Contribution, Blair Contribution and Whitehall Contribution.

Significant Accounting Policies

Significant Accounting Policies	12 Months Ended
Significant Accounting Policies	Dec. 31, 2018
Accounting Policies [Abstract]
Significant Accounting Policies	Significant Accounting Policies Use of Estimates The preparation of the financial statements in conformity with accounting principles generally accepted in the United States of America ("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. The more significant estimates relate to purchase accounting allocations and valuations, estimates and assumptions for our mineral reserves and its impact on calculating our depreciation and depletion expense under the units-of-production depreciation method, assessing potential impairment of long-lived assets, estimating potential loss contingencies, inventory valuation, valuation of unit-based compensation, estimated fair value of contingent consideration in the future and the estimated cost of future asset retirement obligations. Actual results could differ from those estimates. Cash and Cash Equivalents Cash and cash equivalents consist of all cash balances and highly liquid investments with an original maturity of three months or less. Accounts Receivable Trade receivables relate to sales of frac sand and related services for which credit is extended based on the customer’s credit history and are recorded at the invoiced amount and do not bear interest. The Partnership regularly reviews the collectability of accounts receivable. When it is probable that all or part of an outstanding balance will not be collected, the Partnership establishes or adjusts an allowance as necessary generally using the specific identification method. Account balances are charged against the allowance after all means of collection have been exhausted and potential recovery is considered remote. As of each of December 31, 2018 and 2017 , the Partnership maintained an allowance for doubtful accounts of $1,060 . During the first quarter of 2016, the Partnership incurred bad debt expense of $8,236 which was primarily the result of a spot customer filing for bankruptcy. Revenues recognized in advance of invoice issuance create assets referred to as "unbilled receivables." Any portion of our unbilled receivables for which our right to consideration is conditional on a factor other than the passage of time is considered a contract asset. These assets are presented on a combined basis with accounts receivable and are converted to trade receivables once billed. Deferred 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 and was $1,164 , $2,022 and $3,678 for the years ended December 31, 2018 , 2017 and 2016 , respectively. Debt issuance costs related to a recognized debt liability are presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. Debt issuance costs associated with a revolving credit facility are maintained in other assets. In connection with the private placement of $450,000 aggregate principal amount of its 9.50% senior unsecured notes due 2026 (the "Senior Notes") and a senior secured revolving credit facility (the "ABL Credit Facility"), the Partnership incurred debt issuance costs of $12,067 that were capitalized. As of December 31, 2018 and 2017 , the Partnership maintained unamortized debt issuance costs of $9,375 and $3,643 within long-term debt, respectively and $1,953 and $1,070 within other assets, respectively. Refer to Note 10 - Long-Term Debt for additional disclosure on our debt. The following is a summary of future amortization expense associated with deferred financing charges: For the years ending December 31, 2019 $ 1,662 2020 1,662 2021 1,662 2022 1,662 2023 1,485 Thereafter 3,195 Total $ 11,328 Inventories Sand inventory is stated at the lower of cost or net realizable value using the average cost method. Inventory manufactured at our production facilities includes direct excavation costs, processing costs, overhead allocation, depreciation and depletion. Stockpile tonnages are calculated by measuring the number of tons added and removed from the stockpile. Tonnages are verified periodically by an independent surveyor. Costs are calculated on a per ton basis and are applied to the stockpile based on the number of tons in the stockpile. Inventory transported for sale at our terminal facilities or at the blender includes the cost of purchased or manufactured sand, plus transportation and handling related charges. Spare parts inventory includes critical spares, materials and supplies. We account for spare parts on a first-in, first-out basis, and value the inventory at the lower of cost or net realizable value. Detail reviews are performed related to the net realizable value of the spare parts inventory, giving consideration to quality, excessive levels, obsolescence and other factors. Payments to third parties for silo systems and other equipment manufactured for sale to third parties is included in inventory as work-in-process until completed and ready for delivery to the customer, at which time it is classified as finished goods inventory. Silo systems and equipment for sale to third parties is stated at the lower of cost or net realizable value using the average cost method. Property, Plant and Equipment Additions and improvements occurring through the normal course of business are capitalized at cost. When assets are retired or disposed of, the cost and the accumulated depreciation and depletion are eliminated from the accounts and any gain or loss is reflected in the Consolidated Statements of Operations. Expenditures for normal repairs and maintenance are expensed as incurred. Construction-in-progress is primarily comprised of machinery and equipment which has not been placed in service. Mine development costs include engineering, mineralogical studies, drilling and other related costs to develop the mine, the removal of overburden to initially expose the mineral and building access ways. Exploration costs are expensed as incurred and classified as exploration expense. Capitalization of mine development project costs begins once the deposit is classified as proven and probable reserves. Drilling and related costs are capitalized for deposits where proven and probable reserves exist and the activities are directed at obtaining additional information on the deposit or converting non-reserve minerals to proven and probable reserves and the benefit is to be realized over a period greater than one year. Mining property and development costs are amortized using the units-of-production method on estimated measured tons in in-place reserves. The impact of revisions to reserve estimates is recognized on a prospective basis. Capitalized costs incurred during the year for major improvement and capital projects that are not placed in service are recorded as construction-in-progress. Construction-in-progress is not depreciated until the related assets or improvements are ready to be placed in service. We capitalize interest cost as part of the historical cost of constructing an asset and preparing it for its intended use. These interest costs are included in the property, plant and equipment on the Consolidated Balance Sheet. Fixed assets other than plant facilities and buildings associated with productive, depletable properties are carried at historical cost and are depreciated using the straight-line method over the estimated useful lives of the assets, as follows: Computer equipment 3 years Furniture and fixtures 7 years Vehicles 5 years Equipment 5-15 years Rail spurs and asset retirement obligations 17-33 years Rail and rail equipment 15-20 years Transload facilities and equipment 15-25 years Plant facilities and buildings associated with productive, depletable properties that contain frac sand reserves are carried at historical cost and are depreciated using the units-of-production method. Units-of-production rates are based on the amount of proved developed frac sand reserves that are estimated to be recoverable from existing facilities using current operating methods. Impairment of Long-lived Assets Recoverability of investments in property, plant and equipment, and mineral rights is evaluated annually, or more often if events or circumstances indicate the impairment of an asset may exist. Estimated future undiscounted net cash flows are calculated using estimates of proven and probable sand reserves, estimated future sales prices (considering historical and current prices, price trends and related factors) and operating costs and anticipated capital expenditures. Reductions in the carrying value of our investment are only recorded if the undiscounted cash flows are less than our book basis in the applicable assets. Impairment losses are recognized based on the extent that the remaining investment exceeds the fair value, which is determined based upon the estimated future discounted net cash flows to be generated by the property, plant and equipment and mineral rights. Management’s estimates of prices, recoverable proven and probable reserves and operating and capital costs are subject to certain risks and uncertainties which may affect the recoverability of our investments in property, plant and equipment. Although management has made its best estimate of these factors based on current conditions, it is reasonably possible that changes could occur in the near term, which could adversely affect management’s estimate of the net cash flows expected to be generated from its operating property. No impairment charges were recorded during the years ended December 31, 2018 , 2017 and 2016. Goodwill and Intangible Assets Goodwill represents the excess of purchase price over the fair value of net assets acquired. The Partnership performs an assessment of the recoverability of goodwill during the third quarter of each fiscal year, or more often if events or circumstances indicate the impairment of an asset may exist. Our assessment of goodwill is based on qualitative factors to determine whether the fair value of the reporting unit is more likely than not less than the carrying value. An additional quantitative impairment analysis is completed if the qualitative analysis indicates that the fair value is not substantially in excess of the carrying value. The quantitative analysis determines the fair value of the reporting unit based on the discounted cash flow method and relative market-based approaches. During the year ended December 31, 2016, we recognized a $33,745 impairment loss of goodwill. The Partnership did not recognize any impairments for goodwill during the years ended December 31, 2018 and 2017. Refer to Note 17 - Impairments and Other Operating Expenses for additional disclosure regarding our goodwill impairment assessment. The Partnership amortizes the cost of other intangible assets on a straight line basis over their estimated useful lives, ranging from 1 to 20 years. An impairment assessment is performed if events or circumstances occur and may result in the change of the useful lives of the intangible assets. The Partnership did not recognize any impairments for intangible assets during the years ended December 31, 2018 , 2017 and 2016. 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 as other liabilities on the 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 12 - Commitments and Contingencies for additional disclosure regarding contingent consideration. Contingent consideration arrangements entered into in connection with acquisitions between entities under common control are valued at fair value at the date of acquisition and any differences between the original estimated fair value, and the actual resulting payments in the future are reflected as an equity adjustment to the deemed distributions associated with the acquisitions. Asset Retirement Obligations In accordance with Accounting Standards Codification ("ASC") 410-20, Asset Retirement Obligations , we recognize reclamation obligations when incurred and record them as liabilities at fair value. In addition, a corresponding increase in the carrying amount of the related asset is recorded and depreciated over such asset’s useful life. The reclamation liability is accreted to expense over the estimated productive life of the related asset and is subject to adjustments to reflect changes in value resulting from the passage of time and revisions to the estimates of either the timing or amount of the reclamation costs. Revenue Recognition As of January 1, 2018, we adopted the new Accounting Standards Update ("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 15 - 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 2020 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. During the year ended December 31, 2017, the Partnership recognized $3,554 related to a contract dispute that was subsequently resolved, which is included in other operating income on our Consolidated Statements of Operations. 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 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 Senior Notes approximated $329,625 as of December 31, 2018 , 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 12 - Commitments and Contingencies for additional disclosure regarding contingent consideration. Net Income per Limited Partner Unit We have identified the sponsor’s incentive distribution rights as participating securities and compute income per unit using the two-class method under which any excess of distributions declared over net income shall be allocated to the partners based on their respective sharing of income specified in the partnership agreement. Net income per unit applicable to limited partners is computed by dividing limited partners’ interest in net income, 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 2 - Basis of Presentation , the Partnership's historical financial information has been recast to consolidate our sponsor and general partner, Blair, Whitehall and Other Assets for all periods presented. The amounts of incremental income or losses recast to periods prior to the Sponsor Contribution, Blair Contribution and Whitehall Contribution are excluded from the calculation of net income per limited partner unit. Income Taxes The Partnership is a pass-through entity and is not considered a taxable entity for federal tax purposes. Therefore, there is not a provision for income taxes in the accompanying 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 December 31, 2018 and 2017 , the Partnership did not have any liabilities for uncertain tax positions or gross unrecognized tax benefits. Foreign Currency Translation The 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. Recent Accounting Pronouncement s In February 2016, the Financial Accounting Standards Board ("FASB") issued ASU No. 2016-02, Leases (Topic 842). This update impacts all leases with durations greater than twelve months. In general, such arrangements are recognized as assets and liabilities on the balance sheet of the lessee. Under the new accounting guidance, a right-of-use asset and lease obligation is recorded for all leases, whether operating or financing, while the statement of operations reflects lease expense for operating leases and amortization/interest expense for financing leases. The balance sheet amount recorded for existing leases at the date of adoption are calculated using the applicable incremental borrowing rate at the date of adoption. The new leasing standard was effective on January 1, 2019. The FASB has also issued the following standards which clarify ASU 2016-02 and have the same effective date as the original standard: ASU 2017-13, Revenue Recognition (Topic 605), Revenue from Contracts with Customers (Topic 606), Leases (Topic 840), and Leases (Topic 842), ASU 2018-01, Leases (Topic 842): Land Easement Practical Expedient for Transition to Topic 842 and ASU 2018-10, Codification Improvements to Topic 842, Leases . In July 2018, the FASB also issued ASU 2018-11, Leases (Topic 842): Targeted Improvements . The amendments in this update provided entities with an optional transition method, which permitted an entity to initially apply the new leases standard at the adoption date and recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. In addition, the amendments in this update also provided lessors with a practical expedient (provided certain conditions are met), by class of underlying asset, to not separate the nonlease component(s) from the associated lease component for purposes of income statement presentation. The Partnership adopted the new leasing standard on January 1, 2019, using the modified retrospective transition adoption 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 right-of-use assets and related lease liabilities of approximately $131,000 and $121,000

Acquisitions

Acquisitions	12 Months Ended
Acquisitions	Dec. 31, 2018
Business Combinations [Abstract]
Acquisitions	Acquisitions 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 (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. 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 material transactions between the Partnership, 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 are 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 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 $ — 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 December 31, 2018 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 12 - 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 3,788 Inventories 13,416 Goodwill and intangible assets 69,643 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 (8,147 ) 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 of acquisition related costs during the year ended December 31, 2018, included in general and administrative expenses. Pro forma results of operations for FB Industries have not been presented because the FB Industries acquisition was not material to the consolidated results of operations. Asset Acquisition of Permian Basin Sand Reserves On March 3, 2017, the Partnership completed an acquisition of Permian Basin Sand for total consideration of $200,000 in cash and 3,438,789 newly issued common units to the sellers, valued at $62,242 based on the closing price as of March 3, 2017. Permian Basin Sand owns a 1,226 -acre frac sand reserve strategically positioned in the Permian Basin, located within 75 miles of significant Delaware and Midland Basin activity. The acquisition of Permian Basin Sand was accounted for as an asset acquisition as the acquired assets did not constitute a business. The total purchase consideration of $263,072 is reflected as property, plant and equipment on the Consolidated Balance Sheet. The following table summarizes the total purchase consideration: Cash paid to sellers $ 200,000 Issuance of common units to sellers 62,242 Transactions costs associated with the acquisition 830 Cost of Permian Basin Sand acquisition $ 263,072 Acquisition of Hi-Crush Whitehall LLC and Other Assets On February 23, 2017, the Partnership entered into a contribution agreement with our sponsor to acquire all of the outstanding membership interests in Whitehall and Other Assets, for $140,000 in cash and up to $65,000 of contingent consideration over a two -year period. The Partnership completed this acquisition on March 15, 2017. In connection with this acquisition, the Partnership incurred $588 of acquisition related costs during the year ended December 31, 2017, included in general and administrative expenses. The contingent consideration was based on the Partnership's adjusted earnings before interest, taxes, depreciation and amortization ("Adjusted EBITDA") exceeding certain thresholds for each of the fiscal years ending December 31, 2017 and 2018. As of March 15, 2017, the estimated fair value of the contingent consideration liability based on available information at the time of the acquisition was $14,000 . During the first quarter of 2018, the Partnership paid $20,000 of contingent consideration with respect to the 2017 measurement period. In October 2018, the Partnership completed the acquisition of its sponsor and general partner and the remaining contingent consideration arrangements were terminated. As a result of this transaction, the Partnership's historical financial information has been recast to combine the Consolidated Statements of Operations and the Consolidated Balance Sheets of the Partnership with those of Whitehall and Other Assets as if the combination had been in effect since inception of common control on August 16, 2012. All material transactions between the Partnership, Whitehall and Other Assets have been eliminated. The following table summarizes the carrying value of the Whitehall and Other Assets net assets as of March 15, 2017, and the allocation of the purchase price: Net assets of Hi-Crush Whitehall LLC and Other Assets as of March 15, 2017: Cash $ 198 Inventories 4,941 Prepaid expenses and other current assets 3 Property, plant and equipment 124,811 Accounts payable (938 ) Accrued and other current liabilities (386 ) Due to Hi-Crush Partners LP (2,615 ) Asset retirement obligation (1,716 ) Total carrying value of Whitehall and Other Assets net assets $ 124,298 Allocation of purchase price Carrying value of sponsor's non-controlling interest prior to Whitehall Contribution $ 119,108 Excess purchase price over the acquired interest (a) 34,892 Cost of Whitehall and Other Assets acquisition $ 154,000 (a) The deemed distribution attributable to the purchase price was allocated to the common unitholders and excludes the $14,000 estimated fair value of contingent consideration. Acquisition of Hi-Crush Blair LLC On August 9, 2016, the Partnership entered into a contribution agreement with our sponsor to acquire all of the outstanding membership interests in Blair, the entity that owned our sponsor’s Blair facility, for $75,000 in cash, 7,053,292 of newly issued common units in the Partnership, and payment of up to $10,000 of contingent consideration. The Partnership completed the acquisition of the Blair facility on August 31, 2016. In connection with this acquisition, the Partnership incurred $850 of acquisition related costs during the year ended December 31, 2016, included in general and administrative expenses. The contingent consideration was based on the Partnership's Adjusted EBITDA exceeding certain thresholds for each of the fiscal years ending December 31, 2017 and 2018. As of August 31, 2016, the estimated fair value of the contingent consideration liability based on available information at the time of the acquisition was $5,000 . During the first quarter of 2018, the Partnership paid $5,000 of contingent consideration with respect to the 2017 measurement period. In October 2018, the Partnership completed the acquisition of its sponsor and general partner and the remaining contingent consideration arrangements were terminated. 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 Blair as if the combination had been in effect since inception of common control on July 31, 2014. All material transactions between the Partnership and Blair have been eliminated. The following table summarizes the carrying value of Blair's assets as of August 31, 2016, and the allocation of the cash consideration payable: Net assets of Hi-Crush Blair LLC as of August 31, 2016: Cash $ 75 Inventories 6,310 Prepaid expenses and other current assets 360 Due from Hi-Crush Partners LP 406 Property, plant and equipment 125,565 Other assets 700 Accounts payable (5,653 ) Accrued and other current liabilities (2,269 ) Due to sponsor (311 ) Due to Hi-Crush Partners LP (1,240 ) Asset retirement obligation (380 ) Total carrying value of Blair's net assets $ 123,563 Allocation of purchase price Carrying value of sponsor's non-controlling interest prior to Blair Contribution $ 125,571 Excess carrying value over the purchase price of the acquired interest (a) (45,571 ) Cost of Blair acquisition $ 80,000 (a) The deemed contribution attributable to the purchase price was allocated to the common unitholders and excludes the $5,000 estimated fair value of contingent consideration. Recast Financial Results The following tables present, on a supplemental basis, our recast revenues, net income (loss), net income (loss) attributable to Hi-Crush Partners LP and net income (loss) per limited partner unit giving effect to the Sponsor Contribution, Blair Contribution and Whitehall Contribution, as reconciled to the revenues, net income (loss), net income (loss) attributable to Hi-Crush Partners LP and net income (loss) per limited partner unit of the Partnership. Year Ended December 31, 2018 Partnership Historical Sponsor and General Partner through October 21, 2018 Eliminations Partnership Recast (Supplemental) Revenues $ 842,840 $ — $ — $ 842,840 Net income (loss) $ 140,790 $ (3,195 ) $ — $ 137,595 Net income (loss) attributable to Hi-Crush Partners LP $ 140,790 $ (3,195 ) $ — $ 137,595 Net income per limited partner unit - basic $ 1.46 $ 1.42 Year Ended December 31, 2017 Partnership Historical Sponsor and General Partner Whitehall and Other Assets through Eliminations Partnership Recast (Supplemental) Revenues $ 602,623 $ — $ — $ — $ 602,623 Net income (loss) $ 83,979 $ (6,372 ) $ (1,366 ) $ (79 ) $ 76,162 Net income (loss) attributable to Hi-Crush Partners LP $ 84,005 $ (6,372 ) $ (1,392 ) $ (79 ) $ 76,162 Net income per limited partner unit - basic $ 0.97 $ 0.88 Year Ended December 31, 2016 Partnership Historical Sponsor and General Partner Blair through August 31, 2016 Whitehall and Other Assets Eliminations Partnership Recast (Supplemental) Revenues $ 204,430 $ — $ 13,761 $ 8,275 $ (22,036 ) $ 204,430 Net income (loss) $ (81,412 ) $ (8,506 ) $ 716 $ (3,778 ) $ (45 ) $ (93,025 ) Net income (loss) attributable to Hi-Crush Partners LP $ (81,313 ) $ (8,506 ) $ 716 $ (3,877 ) $ (45 ) $ (93,025 ) Net loss per limited partner unit - basic $ (1.64 ) $ (1.88 )

Inventories

Inventories	12 Months Ended
Inventories	Dec. 31, 2018
Inventory Disclosure [Abstract]
Inventories	Inventories Inventories consisted of the following: December 31, 2018 2017 Raw material $ 512 $ 498 Work-in-process 29,180 18,739 Finished goods 24,872 22,892 Spare parts 2,525 2,143 Inventories $ 57,089 $ 44,272

Property, Plant and Equipment

Property, Plant and Equipment	12 Months Ended
Property, Plant and Equipment	Dec. 31, 2018
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	Property, Plant and Equipment Property, plant and equipment consisted of the following: December 31, 2018 2017 Buildings $ 32,751 $ 22,084 Mining property and mine development 390,296 381,653 Plant and equipment 472,892 383,183 Rail and rail equipment 55,913 55,783 Transload facilities and equipment 118,982 116,688 Last mile equipment 66,083 14,276 Construction-in-progress 21,796 14,507 Property, plant and equipment 1,158,713 988,174 Less: Accumulated depreciation and depletion (127,525 ) (88,164 ) Property, plant and equipment, net $ 1,031,188 $ 900,010 Depreciation and depletion expense was $38,775 , $29,872 and $17,616 for the years ended December 31, 2018 , 2017 and 2016 , respectively. The Partnership recognized a (gain) loss on the disposal of fixed assets of $369 , $92 and $(357) during the years ended December 31, 2018 , 2017 and 2016

Goodwill and Intangible Assets

Goodwill and Intangible Assets	12 Months Ended
Goodwill and Intangible Assets	Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets Changes in goodwill and intangible assets consisted of the following: Goodwill Intangible Assets Balance at December 31, 2016 $ — $ 10,097 Amortization expense — (1,681 ) Balance at December 31, 2017 — 8,416 Additions from FB Industries acquisition 22,876 46,767 Impact of foreign currency translation (995 ) (2,115 ) Amortization expense — (3,374 ) Balance at December 31, 2018 $ 21,881 $ 49,694 Goodwill As of December 31, 2018, the Partnership had goodwill of $21,881 based on the allocation of the purchase price of its acquisition of FB Industries. Intangible Assets Intangible assets arising from the acquisition of FB Industries in 2018 and the acquisition of D&I Silica, LLC ("D&I") in 2013 consisted of the following: December 31, Useful life 2018 2017 Patents 15 Years $ 29,620 $ — Customer contracts and relationships 1-10 Years 28,724 18,132 Supplier agreements 1-20 Years 21,997 21,997 Other intangible assets 1-3 Years 6,161 1,749 Intangible assets 86,502 41,878 Less: Accumulated amortization and impairments (36,808 ) (33,462 ) Intangible assets, net $ 49,694 $ 8,416 Amortization expense was $3,374 and $1,681 for the years ended December 31, 2018 and 2017 , respectively. The weighted average remaining life of intangible assets was 14.25 years as of December 31, 2018 . As of December 31, 2018 , future amortization is as follows: Fiscal Year Amortization 2019 $ 5,781 2020 5,781 2021 5,781 2022 5,781 2023 3,271 Thereafter 23,299 $ 49,694

Equity Method Investments

Equity Method Investments	12 Months Ended
Equity Method Investments	Dec. 31, 2018
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 (loss) from Equity Method Investments December 31, Year Ended December 31, 2018 2017 2018 2017 2016 Proppant Express Investments, LLC $ 30,870 $ 17,475 $ 5,300 $ 75 $ — Proppant Logistics LLC 6,484 — (116 ) — — Total $ 37,354 $ 17,475 $ 5,184 $ 75 $ — 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 years ended December 31, 2018 , 2017 and 2016 , the Partnership made capital contributions of $8,095 , $7,168 and $10,232 to PropX. Investment in Proppant Logistics LLC On October 31, 2018, the Partnership invested $6,600

Accrued and Other Current Liabi

Accrued and Other Current Liabilities	12 Months Ended
Accrued and Other Current Liabilities	Dec. 31, 2018
Payables and Accruals [Abstract]
Accrued and Other Current Liabilities	Accrued and Other Current Liabilities Accrued and other current liabilities consisted of the following: December 31, 2018 2017 Accrued royalty payments $ 6,429 $ 8,763 Accrued logistics costs 10,422 5,878 Accrued compensation and benefits 12,144 9,368 Accrued taxes payable 10,917 5,140 Accrued interest payable 18,464 505 Other current liabilities 2,961 3,796 Accrued and other current liabilities $ 61,337 $ 33,450

Long-Term Debt

Long-Term Debt	12 Months Ended
Long-Term Debt	Dec. 31, 2018
Debt Disclosure [Abstract]
Long-Term Debt	Long-Term Debt Long-term debt consisted of the following: December 31, 2018 2017 Senior Notes due 2026 $ 450,000 $ — ABL Credit Facility — — Term Loan Credit Facility — 200,000 Other notes payable 4,852 4,237 Less: Unamortized original issue discount — (1,992 ) Less: Unamortized debt issuance costs (9,375 ) (3,643 ) Total debt 445,477 198,602 Less: current portion of long-term debt (2,194 ) (4,140 ) Long-term debt $ 443,283 $ 194,462 Senior Notes due 2026 On August 1, 2018, the Partnership completed the private placement of $450,000 aggregate principal amount of its 9.50% senior unsecured notes due 2026 (the "Senior Notes"). The Senior Notes were issued under and are governed by an indenture, dated as of August 1, 2018 (the "Indenture"), by and among the Partnership, the guarantors named therein (the "Guarantors"), and U.S. Bank National Association, as trustee. The Senior Notes are fully and unconditionally guaranteed (the "Guarantees"), jointly and severally, on a senior unsecured basis by the Guarantors. The Indenture contains customary terms, events of default and covenants relating to, among other things, the incurrence of debt, the payment of dividends or similar restricted payments, undertaking transactions with the Partnership's unrestricted affiliates, and limitations on asset sales. The Senior Notes bear interest at an annual rate of 9.50% and are payable semi-annually. At any time prior to August 1, 2021, the Partnership may redeem up to 35% of the aggregate principal amount of the Senior Notes at a redemption price equal to 109.50% of the principal amount, plus accrued and unpaid interest, if any, to the redemption date, with an amount of cash not greater than the net proceeds from certain equity offerings. At any time prior to August 1, 2021, the Partnership may redeem the Senior Notes, in whole or in part, at a redemption price equal to 100% of the principal amount of the Senior Notes plus a "make-whole" premium plus accrued and unpaid interest, if any, to the redemption date. The Partnership may also redeem all or a part of the Senior Notes at any time on or after August 1, 2021, at the redemption prices set forth in the Indenture, plus accrued and unpaid interest, if any, to the redemption date. If the Partnership experiences a change of control, the Partnership may be required to offer to purchase the Senior Notes at a purchase price equal to 101% of the principal amount, plus accrued and unpaid interest, if any, to the purchase date. The Senior Notes and the Guarantees rank equally in right of payment with all of the Partnership’s and the Guarantors’ existing and future senior indebtedness, effectively junior to all of the Partnership’s existing and future secured indebtedness, including borrowings the ABL Credit 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 December 31, 2018 , we had $440,625 of indebtedness ( $450,000 , net of $9,375 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 December 31, 2018 , we had $58,073 of available borrowing capacity ( $79,493 , net of $21,420 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 December 31, 2018 , the Partnership was in compliance with all covenants in the ABL Credit Facility. Revolving Credit Agreement On December 22, 2017, the Partnership entered into a second amended and restated credit agreement (the "Revolving Credit Agreement"). On August 1, 2018, upon execution of the ABL Credit Facility described above, the Revolving Lenders commitments under the Revolving Credit Agreement were terminated and the outstanding liabilities of the Partnership with respect to its obligations under the Revolving Credit Agreement were released and discharged. Term Loan Credit Facility On December 22, 2017, the Partnership entered into an amended and restated credit agreement providing for a senior secured term loan credit facility (the "Term Loan Credit Facility") that permits aggregate borrowings of up to $200,000 , which was fully drawn on December 22, 2017. On August 1, 2018, in connection with the closing of the Senior Notes, the Partnership repaid its outstanding debt, including accrued interest, under the Term Loan Credit Facility. The payment was made prior to the maturity date and no early payment penalties were incurred by the Partnership. Other Notes Payable In 2014, the Partnership entered into a purchase and sales agreement to acquire land and underlying frac sand deposits. During the year ended December 31, 2018 , the Partnership issued a three -year promissory note to obtain additional mineral rights on the previously acquired land in the amount of $3,676 due in August 2021 with an interest rate of 2.42% . During the year ended December 31, 2016, the Partnership paid cash consideration of $2,500 , and issued a three -year promissory note in the amount of $3,676 due in December 2019 with an interest rate of 0.74% . 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 if sand is extracted, delivered, sold and paid for from the properties. During the years ended December 31, 2018 and 2017 , the Partnership made prepayments of $3,378 and $3,651 , respectively, based on the accumulated volume of sand extracted, delivered, sold and paid for. In January 2019, the Partnership made a prepayment of $694 based on the volume of sand extracted, delivered, sold and paid for through the fourth quarter of 2018 . As of December 31, 2018 , the Partnership had repaid in full the promissory note due in December 2019 and had $3,352 outstanding on the remaining promissory note. Other notes payable also consisted of short-term obligations, arising from insurance premium financing programs bearing interest ranging from approximately 4.99% to 6.29% , with outstanding balances of $1,500 as of December 31, 2018 . Maturities As of December 31, 2018 , future minimum debt repayments, excluding debt issuance costs, are as follows: Fiscal Year Amount 2019 $ 2,194 2020 — 2021 2,658 2022 — 2023 — Thereafter 450,000 $ 454,852 Debt Refinancing and Extinguishment On December 22, 2017, the Partnership replaced our amended and restated credit agreement and our senior secured term loan credit facility by entering into the Revolving Credit Agreement and the Term Loan Credit Facility. In connection with the refinancing, the Partnership recognized a $4,332 loss on extinguishment of debt, which represents the write-off of all remaining unamortized debt issuance costs and unamortized original issuance discount. On August 1, 2018, the Partnership completed the private placement of $450,000 aggregate principal amount of its 9.50% Senior Notes and entered into the ABL Credit Facility. Upon closing on the Senior Notes and ABL Credit Facility, the Partnership terminated the Revolving Credit Agreement and Term Loan Credit Facility. In connection with the terminations, the Partnership recognized a $6,233

Asset Retirement Obligations

Asset Retirement Obligations	12 Months Ended
Asset Retirement Obligations	Dec. 31, 2018
Asset Retirement Obligation [Abstract]
Asset Retirement Obligations	Asset Retirement Obligations Although the ultimate amount of reclamation and closure costs to be incurred is uncertain, the Partnership maintained a post-closure reclamation and site restoration obligation as follows: Balance at December 31, 2015 $ 8,711 Additions to liabilities 373 Accretion expense 430 Balance at December 31, 2016 9,514 Additions to liabilities 207 Accretion expense 458 Balance at December 31, 2017 10,179 Accretion expense 498 Balance at December 31, 2018 $ 10,677

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
Commitments and Contingencies	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Customer Contracts The Partnership enters into sales contracts with customers. These contracts establish minimum annual sand volumes that the Partnership is required to make available to such customers under initial terms ranging from one to seven years. Through December 31, 2018 , 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 $15,478 , $19,091 and $6,725 for the years ended December 31, 2018 , 2017 and 2016 , 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 December 31, 2018 , we have not accrued a liability related to the PVGs because it is not possible to estimate how many of the owners will elect to avail themselves of the provisions of the PVGs and it cannot be determined if shortfalls will exist in the event of a sale nor can the value of the subject property be ascertained until appraised. As of December 31, 2018 , the Partnership has paid $3,085 under these guarantees since inception. Lease Obligations The Partnership has long-term leases for railcars, equipment and certain of its terminals. Railcar rental expense was $31,393 , $27,410 and $28,597 for the years ended December 31, 2018 , 2017 and 2016 , respectively. The Partnership entered into long-term operating leases with PropX for use of equipment manufactured and owned by PropX. Lease expense associated with PropX equipment was $5,306 , $1,577 and $124 for the years ended December 31, 2018 , 2017 and 2016 , respectively. 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 December 31, 2018 , future minimum operating lease payments and minimum purchase commitments are as follows: Fiscal Year Operating Minimum Purchase 2019 $ 36,019 $ 7,346 2020 36,282 3,745 2021 29,272 2,424 2022 20,890 2,344 2023 10,280 2,182 Thereafter 31,066 677 $ 163,809 $ 18,718 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 systems or conveyors to be paid quarterly. The acquisition date estimated fair value of the contingent consideration of $8,147 is recorded as other liabilities on the Consolidated Balance Sheet as of December 31, 2018 . Changes in fair value of the contingent consideration prior to finalizing the purchase price allocation are accounted for as a working capital adjustment. 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 only leases are entered into during this period. A 10% increase or decrease in the assumed quantity of lease would result in an increase of $10,324 or a decrease of $6,299 , 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 $3,152 . Litigation

Equity

Equity	12 Months Ended
Equity	Dec. 31, 2018
Equity [Abstract]
Equity	Equity Equity Issuances The Partnership issued 1,279,328 of common units as additional consideration for the FB Industries acquisition on August 1, 2018. During the year ended December 31, 2017 , the Partnership completed a public offering for a total of 23,575,000 common units representing limited partnership interests in the Partnership for aggregate net proceeds of approximately $412,577 . The net proceeds from this offering were used to fund the cash portion of the Whitehall Contribution, the cash portion of the Permian Basin Sand asset acquisition and for general partnership purposes. In addition, the Partnership issued 3,438,789 common units as additional consideration for the Permian Basin Sand asset acquisition on March 3, 2017. During the year ended December 31, 2016 , the Partnership completed three public offerings for a total of 19,550,000 common units representing limited partnership interests in the Partnership for aggregate net proceeds of approximately $189,037 . The net proceeds from these offerings were used to pay off the outstanding balance under the Partnership's Revolving Credit Agreement, to fund the Blair Contribution and for general partnership purposes. Unit Buyback Program On October 17, 2017, the Partnership announced that the board of directors of our general partner approved a unit buyback program of up to $100,000 . The repurchase program does not obligate the Partnership to repurchase any specific dollar amount or number of units and may be suspended, modified or discontinued by the board of directors at any time, in its sole discretion and without notice. The following table presents information with respect to repurchases of common units made by the Partnership during the periods presented, which were retired upon repurchase: Year Ended December 31, 2018 2017 Number of units purchased 753,090 2,030,163 Average price paid per unit including commission $ 12.52 $ 9.85 Total cost $ 9,426 $ 20,000 As of December 31, 2018 , the Partnership has repurchased a total of 2,783,253 common units for a total cost of $29,426 , with $70,574 remaining under its approved unit buyback program. Equity Distribution Agreement On January 4, 2017, the Partnership entered into an equity distribution program with certain financial institutions (each, a "Manager") under which we may sell, from time to time, through or to the Managers, common units representing limited partner interests in the Partnership up to an aggregate gross sales price of $50,000 . The Partnership has not issued any common units under this equity distribution program through the date of this filing. Incentive Distribution Rights Incentive distribution rights represent the right to receive increasing percentages (ranging from 15.0% to 50.0% ) of quarterly distributions from operating surplus after minimum quarterly distribution and target distribution levels exceed $0.54625 per unit, per quarter. 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 year ended December 31, 2018 , $7,664 was allocated to the holder of our incentive distribution rights prior to the Sponsor Contribution. During the years ended December 31, 2017 and 2016 , 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 October 26, 2015, we announced the decision of the board of directors of our general partner to temporarily suspend the distribution payment to common unitholders in an effort to conserve cash. On October 16, 2017, the board of directors reinstated quarterly distributions. Our most recent distributions have been as follows: Declaration Date Amount Declared Per Unit Record Date Payment Date Payment to Limited Partner Units Payment to the Holder of Incentive Distribution Rights October 16, 2017 $ 0.1500 October 31, 2017 November 14, 2017 $ 13,656 $ — January 17, 2018 $ 0.2000 February 1, 2018 February 13, 2018 $ 17,809 $ — April 18, 2018 $ 0.2250 May 1, 2018 May 15, 2018 $ 19,888 $ — July 20, 2018 $ 0.7500 August 3, 2018 August 14, 2018 $ 67,253 $ 7,664 October 21, 2018 $ 0.2250 November 1, 2018 November 14, 2018 $ 22,695 $ — 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. Net Income per Limited Partner Unit The following table outlines our basic and diluted, weighted average limited partner units outstanding during the relevant periods: Year Ended December 31, 2018 2017 2016 Basic common units outstanding 91,248,042 86,518,249 49,567,268 Potentially dilutive common units 2,390,138 1,382,733 — Diluted common units outstanding 93,638,180 87,900,982 49,567,268 For purposes of calculating the Partnership’s earnings per unit under the two-class method, common units are treated as participating preferred units. Prior to the Sponsor Contribution, the incentive distribution rights were treated as participating securities. Diluted earnings per unit excludes any dilutive awards granted (see Note 14 - Unit-Based Compensation ) if their effect is anti-dilutive. Diluted earnings per unit for the years ended December 31, 2018 and 2017, includes the dilutive effect of 2,390,138 and 1,382,733 , respectively, of awards granted and outstanding at the assumed number of units which would have vested if the performance period had ended at the end of the respective periods. During the year ended December 31, 2016, the Partnership incurred a net loss and, and as a result, all 579,781 of potentially dilutive awards granted and outstanding were excluded from the diluted earnings per unit calculation. Distributions made in future periods based on the current period calculation of cash available for distribution are allocated to each class of equity that will receive such distributions. Each period, the Partnership determines the amount of cash available for distributions in accordance with the partnership agreement. The amount to be distributed to limited partner unitholders and incentive distribution rights 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 2 - Basis of Presentation , the Partnership's historical financial information has been recast to combine our sponsor and general partner, Blair, Whitehall and Other Assets for all periods presented. The amounts of incremental income or losses recast to periods prior to the Sponsor Contribution, Blair Contribution and Whitehall Contribution are excluded from the calculation of net income per limited partner unit. The following tables provide a reconciliation of net income (loss) and the assumed allocation of net income (loss) under the two-class method for purposes of computing net income (loss) per limited partner unit for the years ended December 31, 2018 , 2017 and 2016 (in thousands, except per unit amounts): Year Ended December 31, 2018 General Partner and IDRs Limited Partner Units Total Declared distribution $ 7,664 $ 109,836 $ 117,500 Assumed allocation of earnings in excess of distributions — 20,095 20,095 Add back recast losses attributable to our sponsor and general partner through October 21, 2018 — 3,195 3,195 Assumed allocation of net income $ 7,664 $ 133,126 $ 140,790 Earnings per limited partner unit - basic $ 1.46 Earnings per limited partner unit - diluted $ 1.42 Year Ended December 31, 2017 General Partner and IDRs Limited Partner Units Total Declared distribution $ — $ 31,457 $ 31,457 Assumed allocation of earnings in excess of distributions — 44,705 44,705 Add back recast losses attributable to our sponsor and general partner — 6,372 6,372 Add back recast losses attributable to Whitehall and Other Assets through March 15, 2017 — 1,471 1,471 Assumed allocation of net income $ — $ 84,005 $ 84,005 Earnings per limited partner unit - basic $ 0.97 Earnings per limited partner unit - diluted $ 0.96 Year Ended December 31, 2016 General Partner and IDRs Limited Partner Units Total Declared distribution $ — $ — $ — Assumed allocation of distributions in excess of loss — (93,025 ) (93,025 ) Add back recast losses attributable to our sponsor and general partner — 8,506 8,506 Add back recast income attributable to Blair through August 31, 2016 — (279 ) (279 ) Add back recast losses attributable to Whitehall and Other Assets — 3,485 3,485 Assumed allocation of net loss $ — $ (81,313 ) $ (81,313 ) Loss per limited partner unit - basic $ (1.64 ) Loss per limited partner unit - diluted $ (1.64 ) Recast Equity Transactions During the years ended December 31, 2018 and 2017 , our sponsor paid cash distributions of $39,516 and $69,215 , respectively, to its members. During the year ended December 31, 2016, our sponsor did not pay any cash distributions to its members. Such transactions are reflected within the non-controlling interest section of the accompanying Consolidated Statement of Partners' Capital. During the year ended December 31, 2017, our sponsor distributed its 20,693,643 common units in the Partnership to its members. On October 21, 2018, in connection with the closing on the Sponsor Contribution, $453,028

Unit-Based Compensation

Unit-Based Compensation	12 Months Ended
Unit-Based Compensation	Dec. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Unit-Based Compensation	Unit-Based Compensation Long-Term Incentive Plan On August 21, 2012, Hi-Crush GP LLC adopted the Hi-Crush Partners LP Long-Term Incentive Plan, which was superseded on September 21, 2016 by the First Amended and Restated Long-Term Incentive Plan (the "Plan") for employees, consultants and directors of Hi-Crush GP LLC and those of its affiliates, including our sponsor, who perform services for the Partnership. The Plan consists of restricted units, unit options, phantom units, unit payments, unit appreciation rights, other equity-based awards, distribution equivalent rights and performance awards. The Plan limited the number of common units that may be issued pursuant to awards under the Plan to 4,064,035 units. After giving effect to the Plan, to the extent that an award is forfeited, canceled, exercised, settled in cash, or otherwise terminates or expires without the actual delivery of common units pursuant to such awards, the common units subject to the award will again be available for new awards granted under the Plan; provided, however, that any common units withheld to cover a tax withholding obligation will not again be available for new awards under the Plan. The Plan is administered by Hi-Crush GP LLC’s board of directors or a committee thereof. The cost of services received in exchange for an award of equity instruments is measured based on the grant-date fair value of the award and that cost is generally recognized over the vesting period of the award. Performance Phantom Units - Equity Settled The Partnership has awarded Performance Phantom Units ("PPUs") pursuant to the Plan to certain employees. The number of PPUs that will vest will range from 0% to 200% of the number of initially granted PPUs and is dependent on the Partnership's total unitholder return over a three -year performance period compared to the total unitholder return of a designated peer group. Each PPU represents the right to receive, upon vesting, one common unit representing limited partner interests in the Partnership. The PPUs are also entitled to forfeitable distribution equivalent rights ("DERs"), which accumulate during the performance period and are paid in cash on the date of settlement. The fair value of each PPU is estimated using a fair value approach and is amortized into compensation expense, reduced for an estimate of expected forfeitures, over the period of service corresponding with the vesting period. Expected volatility is based on the historical market performance of our peer group. The following table presents information relative to our PPUs. Units Grant Date Weighted-Average Fair Value per Unit Outstanding at December 31, 2017 346,141 $ 14.56 Vested (60,528 ) $ 32.45 Granted 468,500 $ 3.40 Forfeited (6,193 ) $ 33.93 Outstanding at December 31, 2018 747,920 $ 5.93 As of December 31, 2018 , total compensation expense not yet recognized related to unvested PPUs was $2,181 , with a weighted average remaining service period of 2.1 years . The weighted average grant date fair value per unit for PPUs granted during the years ended December 31, 2018 , 2017 and 2016 was $3.40 , $6.85 and $15.94 , respectively. The total fair value of units vested during the year ended December 31, 2018 was $1,964 . During the years ended December 31, 2017 and 2016, no units vested. Time-Based Phantom Units - Equity Settled The Partnership has awarded Time-Based Phantom Units ("TPUs") pursuant to the Plan to certain employees which automatically vest if the employee remains employed at the end of the vesting period. The vesting period is a cliff or graded vesting, generally ranging over a three -year period. Each TPU represents the right to receive, upon vesting, one common unit representing limited partner interests in the Partnership. The TPUs are also entitled to forfeitable DERs, which accumulate during the vesting period and are paid in cash on the date of settlement. The fair value of each TPU is calculated based on the grant-date unit price and is amortized into compensation expense, reduced for an estimate of expected forfeitures, over the period of service corresponding with the vesting period. The following table presents information relative to our TPUs. Units Grant Date Weighted-Average Fair Value per Unit Outstanding at December 31, 2017 1,036,592 $ 10.97 Vested (248,724 ) $ 14.68 Granted 967,357 $ 6.91 Forfeited (113,007 ) $ 10.21 Outstanding at December 31, 2018 1,642,218 $ 8.07 As of December 31, 2018 , total compensation expense not yet recognized related to unvested TPUs was $8,944 , with a weighted average remaining service period of 2.2 years . The weighted average grant date fair value per unit for TPUs granted during the years ended December 31, 2018 , 2017 and 2016 was $6.91 , $8.94 and $12.96 , respectively. The total fair value of units vested during the years ended December 31, 2018 , 2017 and 2016 was $3,651 , $714 and $62 , respectively. Director Unit Grants The Partnership issued 36,109 , 29,148 and 103,377 common units to certain of its directors during the years ended December 31, 2018 , 2017 and 2016 , respectively. In January 2019 , the Partnership issued 62,184 common units to certain of its directors. Unit Purchase Programs The Partnership has unit purchase programs ("UPP") offered under the Plan. The UPPs provide participating employees and members of our general partner's board of directors the opportunity to purchase common units representing limited partner interests of the Partnership at a discount. Non-director employees contribute through payroll deductions of the employee's eligible compensation during the applicable offering period. Directors contribute through cash contributions. If the closing price of the Partnership's common units on the purchase date is greater than or equal to the discount applied to the closing market price of our common units on a participant's applicable election date (the "Election Price"), then the participant will receive a number of common units equal to the amount of accumulated payroll deductions or cash contributions, as applicable, (the "Contribution"), divided by the Election Price, capped at a specified number of common units. If the purchase date price is less than the Election Price, then the participant’s Contribution will be returned to the participant. On the date of election, the Partnership calculates the fair value of the discount, which is recognized as unit compensation expense on a straight-line basis during the period from election date through the date of purchase. The offering period under the Partnership's UPP adopted in 2015 (the "2015 UPP") ended on February 28, 2017 with a 10% discount of the fair value of our common units on the applicable election date. The participants under the 2015 UPP purchased 300,090 common units at an average price of $5.49 on February 28, 2017 . On September 14, 2017, the board of directors of our general partner approved the termination of the Partnership's UPP that was adopted in March of 2017 (the "2017 UPP") and approved the adoption of the Second 2017 Unit Purchase Program (the "Second 2017 UPP"). On September 14, 2017, the offering period under the Second 2017 UPP commenced, with a 15% discount of the fair value of our common units on the applicable election date and a purchase date of November 15, 2018 . 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: Year Ended December 31, 2018 2017 2016 Performance Phantom Units $ 1,371 $ 1,549 $ 634 Time-Based Phantom Units 5,261 3,149 1,359 Director and other unit grants 474 499 474 Unit Purchase Programs 333 517 153 Total compensation expense $ 7,439 $ 5,714 $ 2,620

Revenue

Revenue	12 Months Ended
Revenue	Dec. 31, 2018
Revenue from Contract with Customer [Abstract]
Revenues	Revenues As described in Note 3 , on January 1, 2018, we adopted ASU 2014-09, Revenue from Contracts with Customers (Topic 606) , using the full retrospective method. In accordance with Topic 606, the Partnership recognizes revenue at the point in time control of the promised goods or services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services. A performance obligation is a promise in a contract to transfer a distinct good or service to the customer, and is the unit of account in Topic 606. A contract's transaction price is allocated to each distinct performance obligation and recognized as revenue when, or as, the performance obligation is satisfied. The majority of our contracts are frac sand contracts that have a single performance obligation as the promise to transfer individual goods or services is not separately identifiable from other promises in the contracts and, therefore, not distinct. For the portion of our contracts that contain multiple performance obligations, such as work orders containing a combination of product, transportation, equipment rentals, and labor services, we allocate the transaction price to each performance obligation identified in the contract based on relative stand-alone selling prices, or estimates of such prices, and recognize the related revenue as control of each individual product or service is transferred to the customer, in satisfaction of the corresponding performance obligations. Disaggregation of Revenues The following table presents our revenues disaggregated by contractual relationships: Year Ended December 31, 2018 2017 2016 Sales to contract customers $ 607,898 $ 438,547 $ 169,696 Spot sales 88,705 159,808 33,013 Frac sand sales revenues 696,603 598,355 202,709 Other revenues 146,237 4,268 1,721 Total revenues $ 842,840 $ 602,623 $ 204,430 Practical Expedients and Exemptions We have elected to use the practical expedients allowed under ASC 606-10-50-14, pursuant to which we have excluded disclosures of transaction prices allocated to remaining performance obligations and when we expect to recognize such revenue. We have various long-term contracts with minimum purchase and supply requirements with terms expiring between 2020 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 December 31, 2018 , the Partnership has recorded a total liability of $29,785 for prepayments of future deliveries of frac sand. Some prepayments are refundable in the event that the Partnership is unable to meet the minimum requirements under certain contracts. We expect to recognize these revenues over the next 1.7 years. The following table reflect the changes in our contract liabilities, which we classify as deferred revenues: Balance at December 31, 2017 $ 11,783 Collection of prepayments 33,841 Revenues recognized (25,696 ) Customer payments acquired in purchase of FB Industries 9,911 Impact of foreign currency translation (54 ) Balance at December 31, 2018 $ 29,785

Related Party Transactions

Related Party Transactions	12 Months Ended
Related Party Transactions	Dec. 31, 2018
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions On September 8, 2016, the Partnership entered into an agreement to become a member of PropX, which is accounted for as an equity method investment. During the years ended December 31, 2018 and 2017 , the Partnership purchased $4,646 and $5,033 , respectively, of equipment from PropX, which is reflected in property, plant and equipment. As of December 31, 2018 and 2017 , the Partnership had accounts payable of $1,070 and $1,273 , respectively, to PropX, which is reflected in accounts payable on our Consolidated Balance Sheet. In addition to equipment purchases, during the years ended December 31, 2018 , 2017 and 2016 , we incurred $5,306 , $1,577 and $124 , respectively, of lease expense for the use of PropX equipment, which is reflected in cost of goods sold. During the years ended December 31, 2018 , 2017 and 2016

Impairments and Other Expenses

Impairments and Other Expenses	12 Months Ended
Impairments and Other Expenses	Dec. 31, 2018
Restructuring and Related Activities [Abstract]
Impairments and Other Expenses	Impairments and Other Operating Expenses During the year ended December 31, 2016, the Partnership recognized a $33,745 impairment loss of goodwill, which arose from the acquisition of D&I in 2013 and was therefore allocated to the D&I reporting unit. During the three months ended March 31, 2016, volumes sold through the D&I reporting unit declined below previously forecasted levels and pricing deteriorated further. Our customers faced uncertainty related to activity levels and reduced their active frac crews, resulting in declines in well completion activity and industry demand for frac sand. Therefore, as of March 31, 2016, we determined that the state of market conditions and activity levels indicated that an impairment of goodwill may exist. As a result, we assessed qualitative factors and determined that we could not conclude it was more likely than not that the fair value of goodwill exceeded its carrying value. In turn, we prepared a quantitative analysis of the fair value of the goodwill as of March 31, 2016, based on the weighted average valuation across several income and market based valuation approaches. The underlying results of the valuation were driven by our actual results during the three months ended March 31, 2016 and the pricing, costs structures and market conditions existing as of March 31, 2016, which were below our forecasts at the time of the previous goodwill assessments. Other key estimates, assumptions and inputs used in the valuation included long-term growth rates, discounts rates, terminal values, valuation multiples and relative valuations when comparing the reporting unit to similar businesses or asset bases. Upon completion of the Step 1 and Step 2 valuation exercises, it was determined that an impairment loss of all goodwill was incurred, which was equal to the difference between the carrying value and estimated fair value of goodwill. We recognized impairments and other expenses as outlined in the following table: Year Ended December 31, 2018 2017 2016 Impairment of Goodwill $ — $ — $ 33,745 Severance, retention and relocation 1,549 40 280 Contract settlement 1,000 — — Exploration expenses 1 143 — Abandonment of construction projects — 460 — Expiration of exclusivity agreements — 222 — Other 215 — — Impairments and other expenses $ 2,765 $ 865 $ 34,025

Segment Reporting

Segment Reporting	12 Months Ended
Segment Reporting	Dec. 31, 2018
Segment Reporting [Abstract]
Segment Reporting	Segment Reporting The Partnership manages, operates and owns assets utilized to supply frac sand to its customers. It conducts operations through its one

Concentration of Credit Risk

Concentration of Credit Risk	12 Months Ended
Concentration of Credit Risk	Dec. 31, 2018
Risks and Uncertainties [Abstract]
Concentration of Credit Risk	Concentration of Credit Risk The Partnership is a producer of sand mainly used by the oil and natural gas industry for fracturing wells. The Partnership’s business is, therefore, dependent upon economic activity within this market. The following table provides our significant customers that had sales greater than 10% for the years ended December 31, 2018 , 2017 and 2016 : Year Ended December 31, 2018 2017 2016 Customer A 22 % * * Customer B 16 % 26 % 28 % Customer C * 11 % 17 % Customer D * * 14 % Customer E * * 19 % * Less than 10% Throughout 2018

Quarterly Financial Data (Unaud

Quarterly Financial Data (Unaudited)	12 Months Ended
Quarterly Financial Data (Unaudited)	Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Data (Unaudited)	Quarterly Financial Data (Unaudited) As discussed in Note 2 - Basis of Presentation , the Sponsor Contribution and Whitehall Contribution were accounted for as transactions between entities under common control. Therefore, the Partnership's historical financial information has been recast to include our sponsor and general partner and Whitehall and Other Assets for all periods presented. 2018 First Quarter Second Quarter Third Quarter (a) Fourth Quarter Total Revenues $ 218,113 $ 248,520 $ 213,972 $ 162,235 $ 842,840 Gross profit 68,331 83,507 56,148 18,596 226,582 Income from operations 55,738 69,534 39,759 (1,040 ) 163,991 Net income (loss) 53,431 66,956 27,138 (9,930 ) 137,595 Earnings (loss) per limited partner unit: Basic $ 0.60 $ 0.68 $ 0.30 $ (0.08 ) $ 1.46 2017 Revenues $ 83,364 $ 135,220 $ 167,583 $ 216,456 $ 602,623 Gross profit 6,453 27,742 38,823 61,808 134,826 Income (loss) from operations (5,795 ) 17,978 32,059 49,148 93,390 Net income (loss) (10,962 ) 15,824 29,372 41,928 76,162 Earnings (loss) per limited partner unit: Basic $ (0.07 ) $ 0.18 $ 0.33 $ 0.48 $ 0.97 (a) The third quarter of 2017 includes $3,554

Subsequent Events

Subsequent Events	12 Months Ended
Subsequent Events	Dec. 31, 2018
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Corporate Conversion

Schedule II - Valuation and Qua

Schedule II - Valuation and Qualifying Accounts	12 Months Ended
Schedule II - Valuation and Qualifying Accounts	Dec. 31, 2018
Valuation and Qualifying Accounts [Abstract]
Schedule II - Valuation and Qualifying Accounts	Schedule II - Valuation and Qualifying Accounts (In thousands) Balance at Beginning of Period Charged to Costs and Expenses Deductions Balance at End of Period Allowance for doubtful accounts Year Ended December 31, 2018 $ 1,060 $ — $ — $ 1,060 Year Ended December 31, 2017 $ 1,549 $ — $ (489 ) $ 1,060 Year Ended December 31, 2016 $ 663 $ 8,236 $ (7,350 ) $ 1,549

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	12 Months Ended
Significant Accounting Policies (Policies)	Dec. 31, 2018
Accounting Policies [Abstract]
Use of Estimates	Use of EstimatesThe preparation of the financial statements in conformity with accounting principles generally accepted in the United States of America ("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. The more significant estimates relate to purchase accounting allocations and valuations, estimates and assumptions for our mineral reserves and its impact on calculating our depreciation and depletion expense under the units-of-production depreciation method, assessing potential impairment of long-lived assets, estimating potential loss contingencies, inventory valuation, valuation of unit-based compensation, estimated fair value of contingent consideration in the future and the estimated cost of future asset retirement obligations. Actual results could differ from those estimates.
Cash and Cash Equivalents	Cash and Cash EquivalentsCash and cash equivalents consist of all cash balances and highly liquid investments with an original maturity of three months or less.
Accounts Receivable	Accounts Receivable Trade receivables relate to sales of frac sand and related services for which credit is extended based on the customer’s credit history and are recorded at the invoiced amount and do not bear interest. The Partnership regularly reviews the collectability of accounts receivable. When it is probable that all or part of an outstanding balance will not be collected, the Partnership establishes or adjusts an allowance as necessary generally using the specific identification method. Account balances are charged against the allowance after all means of collection have been exhausted and potential recovery is considered remote. As of each of December 31, 2018 and 2017 , the Partnership maintained an allowance for doubtful accounts of $1,060 . During the first quarter of 2016, the Partnership incurred bad debt expense of $8,236 which was primarily the result of a spot customer filing for bankruptcy.
Deferred Financing Charges	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 and was $1,164 , $2,022 and $3,678 for the years ended December 31, 2018 , 2017 and 2016 , respectively. Debt issuance costs related to a recognized debt liability are presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. Debt issuance costs associated with a revolving credit facility are maintained in other assets. In connection with the private placement of $450,000 aggregate principal amount of its 9.50% senior unsecured notes due 2026 (the "Senior Notes") and a senior secured revolving credit facility (the "ABL Credit Facility"), the Partnership incurred debt issuance costs of $12,067 that were capitalized. As of December 31, 2018 and 2017 , the Partnership maintained unamortized debt issuance costs of $9,375 and $3,643 within long-term debt, respectively and $1,953 and $1,070
Inventories	Inventories Sand inventory is stated at the lower of cost or net realizable value using the average cost method. Inventory manufactured at our production facilities includes direct excavation costs, processing costs, overhead allocation, depreciation and depletion. Stockpile tonnages are calculated by measuring the number of tons added and removed from the stockpile. Tonnages are verified periodically by an independent surveyor. Costs are calculated on a per ton basis and are applied to the stockpile based on the number of tons in the stockpile. Inventory transported for sale at our terminal facilities or at the blender includes the cost of purchased or manufactured sand, plus transportation and handling related charges. Spare parts inventory includes critical spares, materials and supplies. We account for spare parts on a first-in, first-out basis, and value the inventory at the lower of cost or net realizable value. Detail reviews are performed related to the net realizable value of the spare parts inventory, giving consideration to quality, excessive levels, obsolescence and other factors.
Property, Plant and Equipment	Property, Plant and Equipment Additions and improvements occurring through the normal course of business are capitalized at cost. When assets are retired or disposed of, the cost and the accumulated depreciation and depletion are eliminated from the accounts and any gain or loss is reflected in the Consolidated Statements of Operations. Expenditures for normal repairs and maintenance are expensed as incurred. Construction-in-progress is primarily comprised of machinery and equipment which has not been placed in service. Mine development costs include engineering, mineralogical studies, drilling and other related costs to develop the mine, the removal of overburden to initially expose the mineral and building access ways. Exploration costs are expensed as incurred and classified as exploration expense. Capitalization of mine development project costs begins once the deposit is classified as proven and probable reserves. Drilling and related costs are capitalized for deposits where proven and probable reserves exist and the activities are directed at obtaining additional information on the deposit or converting non-reserve minerals to proven and probable reserves and the benefit is to be realized over a period greater than one year. Mining property and development costs are amortized using the units-of-production method on estimated measured tons in in-place reserves. The impact of revisions to reserve estimates is recognized on a prospective basis. Capitalized costs incurred during the year for major improvement and capital projects that are not placed in service are recorded as construction-in-progress. Construction-in-progress is not depreciated until the related assets or improvements are ready to be placed in service. We capitalize interest cost as part of the historical cost of constructing an asset and preparing it for its intended use. These interest costs are included in the property, plant and equipment on the Consolidated Balance Sheet. Fixed assets other than plant facilities and buildings associated with productive, depletable properties are carried at historical cost and are depreciated using the straight-line method over the estimated useful lives of the assets, as follows: Computer equipment 3 years Furniture and fixtures 7 years Vehicles 5 years Equipment 5-15 years Rail spurs and asset retirement obligations 17-33 years Rail and rail equipment 15-20 years Transload facilities and equipment 15-25 years
Impairment of Long-lived Assets	Impairment of Long-lived Assets Recoverability of investments in property, plant and equipment, and mineral rights is evaluated annually, or more often if events or circumstances indicate the impairment of an asset may exist. Estimated future undiscounted net cash flows are calculated using estimates of proven and probable sand reserves, estimated future sales prices (considering historical and current prices, price trends and related factors) and operating costs and anticipated capital expenditures. Reductions in the carrying value of our investment are only recorded if the undiscounted cash flows are less than our book basis in the applicable assets. Impairment losses are recognized based on the extent that the remaining investment exceeds the fair value, which is determined based upon the estimated future discounted net cash flows to be generated by the property, plant and equipment and mineral rights.
Goodwill and Intangible Assets	Goodwill and Intangible Assets Goodwill represents the excess of purchase price over the fair value of net assets acquired. The Partnership performs an assessment of the recoverability of goodwill during the third quarter of each fiscal year, or more often if events or circumstances indicate the impairment of an asset may exist. Our assessment of goodwill is based on qualitative factors to determine whether the fair value of the reporting unit is more likely than not less than the carrying value. An additional quantitative impairment analysis is completed if the qualitative analysis indicates that the fair value is not substantially in excess of the carrying value. The quantitative analysis determines the fair value of the reporting unit based on the discounted cash flow method and relative market-based approaches. During the year ended December 31, 2016, we recognized a $33,745 impairment loss of goodwill. The Partnership did not recognize any impairments for goodwill during the years ended December 31, 2018 and 2017. Refer to Note 17 - Impairments and Other Operating Expenses for additional disclosure regarding our goodwill impairment assessment. The Partnership amortizes the cost of other intangible assets on a straight line basis over their estimated useful lives, ranging from 1 to 20
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 as other liabilities on the 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 12 - Commitments and Contingencies for additional disclosure regarding contingent consideration.
Asset Retirement Obligations	Asset Retirement Obligations In accordance with Accounting Standards Codification ("ASC") 410-20, Asset Retirement Obligations
Revenue Recognition	Revenue Recognition As of January 1, 2018, we adopted the new Accounting Standards Update ("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 15 - 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 2020 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. During the year ended December 31, 2017, the Partnership recognized $3,554 related to a contract dispute that was subsequently resolved, which is included in other operating income on our Consolidated Statements of Operations. 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 typically invoice our customers as product is delivered and services are rendered, with standard collection terms of net 30 days
Deferred Revenues	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	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 Senior Notes approximated $329,625 as of December 31, 2018 , 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 12 - Commitments and Contingencies
Net Income per Limited Partner Unit	Net Income per Limited Partner Unit We have identified the sponsor’s incentive distribution rights as participating securities and compute income per unit using the two-class method under which any excess of distributions declared over net income shall be allocated to the partners based on their respective sharing of income specified in the partnership agreement. Net income per unit applicable to limited partners is computed by dividing limited partners’ interest in net income, 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 2 - Basis of Presentation
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 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.
Recent Accounting Pronouncements	Recent Accounting Pronouncement s In February 2016, the Financial Accounting Standards Board ("FASB") issued ASU No. 2016-02, Leases (Topic 842). This update impacts all leases with durations greater than twelve months. In general, such arrangements are recognized as assets and liabilities on the balance sheet of the lessee. Under the new accounting guidance, a right-of-use asset and lease obligation is recorded for all leases, whether operating or financing, while the statement of operations reflects lease expense for operating leases and amortization/interest expense for financing leases. The balance sheet amount recorded for existing leases at the date of adoption are calculated using the applicable incremental borrowing rate at the date of adoption. The new leasing standard was effective on January 1, 2019. The FASB has also issued the following standards which clarify ASU 2016-02 and have the same effective date as the original standard: ASU 2017-13, Revenue Recognition (Topic 605), Revenue from Contracts with Customers (Topic 606), Leases (Topic 840), and Leases (Topic 842), ASU 2018-01, Leases (Topic 842): Land Easement Practical Expedient for Transition to Topic 842 and ASU 2018-10, Codification Improvements to Topic 842, Leases . In July 2018, the FASB also issued ASU 2018-11, Leases (Topic 842): Targeted Improvements . The amendments in this update provided entities with an optional transition method, which permitted an entity to initially apply the new leases standard at the adoption date and recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. In addition, the amendments in this update also provided lessors with a practical expedient (provided certain conditions are met), by class of underlying asset, to not separate the nonlease component(s) from the associated lease component for purposes of income statement presentation. The Partnership adopted the new leasing standard on January 1, 2019, using the modified retrospective transition adoption 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 right-of-use assets and related lease liabilities of approximately $131,000 and $121,000

Significant Accounting Polici_3

Significant Accounting Policies (Tables)	12 Months Ended
Significant Accounting Policies (Tables)	Dec. 31, 2018
Accounting Policies [Abstract]
Future Amortization Expense of Deferred Financing Charges	The following is a summary of future amortization expense associated with deferred financing charges: For the years ending December 31, 2019 $ 1,662 2020 1,662 2021 1,662 2022 1,662 2023 1,485 Thereafter 3,195 Total $ 11,328
Estimated Useful Lives of Property, Plant and Equipment	Fixed assets other than plant facilities and buildings associated with productive, depletable properties are carried at historical cost and are depreciated using the straight-line method over the estimated useful lives of the assets, as follows: Computer equipment 3 years Furniture and fixtures 7 years Vehicles 5 years Equipment 5-15 years Rail spurs and asset retirement obligations 17-33 years Rail and rail equipment 15-20 years Transload facilities and equipment 15-25 years

Acquisitions (Tables)

Acquisitions (Tables)	12 Months Ended
Acquisitions (Tables)	Dec. 31, 2018
Business Combinations [Abstract]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	The following table summarizes the carrying value of the Whitehall and Other Assets net assets as of March 15, 2017, and the allocation of the purchase price: Net assets of Hi-Crush Whitehall LLC and Other Assets as of March 15, 2017: Cash $ 198 Inventories 4,941 Prepaid expenses and other current assets 3 Property, plant and equipment 124,811 Accounts payable (938 ) Accrued and other current liabilities (386 ) Due to Hi-Crush Partners LP (2,615 ) Asset retirement obligation (1,716 ) Total carrying value of Whitehall and Other Assets net assets $ 124,298 Allocation of purchase price Carrying value of sponsor's non-controlling interest prior to Whitehall Contribution $ 119,108 Excess purchase price over the acquired interest (a) 34,892 Cost of Whitehall and Other Assets acquisition $ 154,000 (a) The deemed distribution attributable to the purchase price was allocated to the common unitholders and excludes the $14,000 Net assets of Hi-Crush Blair LLC as of August 31, 2016: Cash $ 75 Inventories 6,310 Prepaid expenses and other current assets 360 Due from Hi-Crush Partners LP 406 Property, plant and equipment 125,565 Other assets 700 Accounts payable (5,653 ) Accrued and other current liabilities (2,269 ) Due to sponsor (311 ) Due to Hi-Crush Partners LP (1,240 ) Asset retirement obligation (380 ) Total carrying value of Blair's net assets $ 123,563 Allocation of purchase price Carrying value of sponsor's non-controlling interest prior to Blair Contribution $ 125,571 Excess carrying value over the purchase price of the acquired interest (a) (45,571 ) Cost of Blair acquisition $ 80,000 (a) The deemed contribution attributable to the purchase price was allocated to the common unitholders and excludes the $5,000 $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 3,788 Inventories 13,416 Goodwill and intangible assets 69,643 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 (8,147 ) 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 $ —
Schedule Of Total Purchase Consideration, Asset Acquisition	The following table summarizes the total purchase consideration: Cash paid to sellers $ 200,000 Issuance of common units to sellers 62,242 Transactions costs associated with the acquisition 830 Cost of Permian Basin Sand acquisition $ 263,072
Business Acquisition, Recast Financial Information	The following tables present, on a supplemental basis, our recast revenues, net income (loss), net income (loss) attributable to Hi-Crush Partners LP and net income (loss) per limited partner unit giving effect to the Sponsor Contribution, Blair Contribution and Whitehall Contribution, as reconciled to the revenues, net income (loss), net income (loss) attributable to Hi-Crush Partners LP and net income (loss) per limited partner unit of the Partnership. Year Ended December 31, 2018 Partnership Historical Sponsor and General Partner through October 21, 2018 Eliminations Partnership Recast (Supplemental) Revenues $ 842,840 $ — $ — $ 842,840 Net income (loss) $ 140,790 $ (3,195 ) $ — $ 137,595 Net income (loss) attributable to Hi-Crush Partners LP $ 140,790 $ (3,195 ) $ — $ 137,595 Net income per limited partner unit - basic $ 1.46 $ 1.42 Year Ended December 31, 2017 Partnership Historical Sponsor and General Partner Whitehall and Other Assets through Eliminations Partnership Recast (Supplemental) Revenues $ 602,623 $ — $ — $ — $ 602,623 Net income (loss) $ 83,979 $ (6,372 ) $ (1,366 ) $ (79 ) $ 76,162 Net income (loss) attributable to Hi-Crush Partners LP $ 84,005 $ (6,372 ) $ (1,392 ) $ (79 ) $ 76,162 Net income per limited partner unit - basic $ 0.97 $ 0.88 Year Ended December 31, 2016 Partnership Historical Sponsor and General Partner Blair through August 31, 2016 Whitehall and Other Assets Eliminations Partnership Recast (Supplemental) Revenues $ 204,430 $ — $ 13,761 $ 8,275 $ (22,036 ) $ 204,430 Net income (loss) $ (81,412 ) $ (8,506 ) $ 716 $ (3,778 ) $ (45 ) $ (93,025 ) Net income (loss) attributable to Hi-Crush Partners LP $ (81,313 ) $ (8,506 ) $ 716 $ (3,877 ) $ (45 ) $ (93,025 ) Net loss per limited partner unit - basic $ (1.64 ) $ (1.88 )

Inventories (Tables)

Inventories (Tables)	12 Months Ended
Inventories (Tables)	Dec. 31, 2018
Inventory Disclosure [Abstract]
Components of Inventories	Inventories consisted of the following: December 31, 2018 2017 Raw material $ 512 $ 498 Work-in-process 29,180 18,739 Finished goods 24,872 22,892 Spare parts 2,525 2,143 Inventories $ 57,089 $ 44,272

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	12 Months Ended
Property, Plant and Equipment (Tables)	Dec. 31, 2018
Property, Plant and Equipment [Abstract]
Components of Property, Plant and Equipment	Property, plant and equipment consisted of the following: December 31, 2018 2017 Buildings $ 32,751 $ 22,084 Mining property and mine development 390,296 381,653 Plant and equipment 472,892 383,183 Rail and rail equipment 55,913 55,783 Transload facilities and equipment 118,982 116,688 Last mile equipment 66,083 14,276 Construction-in-progress 21,796 14,507 Property, plant and equipment 1,158,713 988,174 Less: Accumulated depreciation and depletion (127,525 ) (88,164 ) Property, plant and equipment, net $ 1,031,188 $ 900,010

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	12 Months Ended
Goodwill and Intangible Assets (Tables)	Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Changes in Goodwill and Intangible Assets	Changes in goodwill and intangible assets consisted of the following: Goodwill Intangible Assets Balance at December 31, 2016 $ — $ 10,097 Amortization expense — (1,681 ) Balance at December 31, 2017 — 8,416 Additions from FB Industries acquisition 22,876 46,767 Impact of foreign currency translation (995 ) (2,115 ) Amortization expense — (3,374 ) Balance at December 31, 2018 $ 21,881 $ 49,694
Intangible Assets, Arising from Acquisitions	Intangible assets arising from the acquisition of FB Industries in 2018 and the acquisition of D&I Silica, LLC ("D&I") in 2013 consisted of the following: December 31, Useful life 2018 2017 Patents 15 Years $ 29,620 $ — Customer contracts and relationships 1-10 Years 28,724 18,132 Supplier agreements 1-20 Years 21,997 21,997 Other intangible assets 1-3 Years 6,161 1,749 Intangible assets 86,502 41,878 Less: Accumulated amortization and impairments (36,808 ) (33,462 ) Intangible assets, net $ 49,694 $ 8,416
Future Amortization Expense of Intangible Assets	As of December 31, 2018 , future amortization is as follows: Fiscal Year Amortization 2019 $ 5,781 2020 5,781 2021 5,781 2022 5,781 2023 3,271 Thereafter 23,299 $ 49,694

Equity Method Investments (Tabl

Equity Method Investments (Tables)	12 Months Ended
Equity Method Investments (Tables)	Dec. 31, 2018
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 (loss) from Equity Method Investments December 31, Year Ended December 31, 2018 2017 2018 2017 2016 Proppant Express Investments, LLC $ 30,870 $ 17,475 $ 5,300 $ 75 $ — Proppant Logistics LLC 6,484 — (116 ) — — Total $ 37,354 $ 17,475 $ 5,184 $ 75 $ —

Accrued and Other Current Lia_2

Accrued and Other Current Liabilities (Tables)	12 Months Ended
Accrued and Other Current Liabilities (Tables)	Dec. 31, 2018
Payables and Accruals [Abstract]
Components of Accrued and Other Current Liabilities	Accrued and other current liabilities consisted of the following: December 31, 2018 2017 Accrued royalty payments $ 6,429 $ 8,763 Accrued logistics costs 10,422 5,878 Accrued compensation and benefits 12,144 9,368 Accrued taxes payable 10,917 5,140 Accrued interest payable 18,464 505 Other current liabilities 2,961 3,796 Accrued and other current liabilities $ 61,337 $ 33,450

Long-Term Debt (Tables)

Long-Term Debt (Tables)	12 Months Ended
Long-Term Debt (Tables)	Dec. 31, 2018
Debt Disclosure [Abstract]
Components of Long-Term Debt	Long-term debt consisted of the following: December 31, 2018 2017 Senior Notes due 2026 $ 450,000 $ — ABL Credit Facility — — Term Loan Credit Facility — 200,000 Other notes payable 4,852 4,237 Less: Unamortized original issue discount — (1,992 ) Less: Unamortized debt issuance costs (9,375 ) (3,643 ) Total debt 445,477 198,602 Less: current portion of long-term debt (2,194 ) (4,140 ) Long-term debt $ 443,283 $ 194,462
Schedule of Maturities of Long-term Debt	As of December 31, 2018 , future minimum debt repayments, excluding debt issuance costs, are as follows: Fiscal Year Amount 2019 $ 2,194 2020 — 2021 2,658 2022 — 2023 — Thereafter 450,000 $ 454,852

Asset Retirement Obligations (T

Asset Retirement Obligations (Tables)	12 Months Ended
Asset Retirement Obligations (Tables)	Dec. 31, 2018
Asset Retirement Obligation [Abstract]
Reconciliation of Total Reclamation Liability for Asset Retirement Obligations	Although the ultimate amount of reclamation and closure costs to be incurred is uncertain, the Partnership maintained a post-closure reclamation and site restoration obligation as follows: Balance at December 31, 2015 $ 8,711 Additions to liabilities 373 Accretion expense 430 Balance at December 31, 2016 9,514 Additions to liabilities 207 Accretion expense 458 Balance at December 31, 2017 10,179 Accretion expense 498 Balance at December 31, 2018 $ 10,677

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
Commitments and Contingencies (Tables)	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Schedule of Contractual Obligations	As of December 31, 2018 , future minimum operating lease payments and minimum purchase commitments are as follows: Fiscal Year Operating Minimum Purchase 2019 $ 36,019 $ 7,346 2020 36,282 3,745 2021 29,272 2,424 2022 20,890 2,344 2023 10,280 2,182 Thereafter 31,066 677 $ 163,809 $ 18,718

Equity (Tables)

Equity (Tables)	12 Months Ended
Equity (Tables)	Dec. 31, 2018
Equity [Abstract]
Schedule of Common Unit Repurchases	The following table presents information with respect to repurchases of common units made by the Partnership during the periods presented, which were retired upon repurchase: Year Ended December 31, 2018 2017 Number of units purchased 753,090 2,030,163 Average price paid per unit including commission $ 12.52 $ 9.85 Total cost $ 9,426 $ 20,000
Schedule of Distributions	On October 26, 2015, we announced the decision of the board of directors of our general partner to temporarily suspend the distribution payment to common unitholders in an effort to conserve cash. On October 16, 2017, the board of directors reinstated quarterly distributions. Our most recent distributions have been as follows: Declaration Date Amount Declared Per Unit Record Date Payment Date Payment to Limited Partner Units Payment to the Holder of Incentive Distribution Rights October 16, 2017 $ 0.1500 October 31, 2017 November 14, 2017 $ 13,656 $ — January 17, 2018 $ 0.2000 February 1, 2018 February 13, 2018 $ 17,809 $ — April 18, 2018 $ 0.2250 May 1, 2018 May 15, 2018 $ 19,888 $ — July 20, 2018 $ 0.7500 August 3, 2018 August 14, 2018 $ 67,253 $ 7,664 October 21, 2018 $ 0.2250 November 1, 2018 November 14, 2018 $ 22,695 $ — On January 7, 2019
Schedule of Weighted Average Limited Partner Units Outstanding	The following table outlines our basic and diluted, weighted average limited partner units outstanding during the relevant periods: Year Ended December 31, 2018 2017 2016 Basic common units outstanding 91,248,042 86,518,249 49,567,268 Potentially dilutive common units 2,390,138 1,382,733 — Diluted common units outstanding 93,638,180 87,900,982 49,567,268
Schedule of Net Income Attributable to Limited Partners	The following tables provide a reconciliation of net income (loss) and the assumed allocation of net income (loss) under the two-class method for purposes of computing net income (loss) per limited partner unit for the years ended December 31, 2018 , 2017 and 2016 (in thousands, except per unit amounts): Year Ended December 31, 2018 General Partner and IDRs Limited Partner Units Total Declared distribution $ 7,664 $ 109,836 $ 117,500 Assumed allocation of earnings in excess of distributions — 20,095 20,095 Add back recast losses attributable to our sponsor and general partner through October 21, 2018 — 3,195 3,195 Assumed allocation of net income $ 7,664 $ 133,126 $ 140,790 Earnings per limited partner unit - basic $ 1.46 Earnings per limited partner unit - diluted $ 1.42 Year Ended December 31, 2017 General Partner and IDRs Limited Partner Units Total Declared distribution $ — $ 31,457 $ 31,457 Assumed allocation of earnings in excess of distributions — 44,705 44,705 Add back recast losses attributable to our sponsor and general partner — 6,372 6,372 Add back recast losses attributable to Whitehall and Other Assets through March 15, 2017 — 1,471 1,471 Assumed allocation of net income $ — $ 84,005 $ 84,005 Earnings per limited partner unit - basic $ 0.97 Earnings per limited partner unit - diluted $ 0.96 Year Ended December 31, 2016 General Partner and IDRs Limited Partner Units Total Declared distribution $ — $ — $ — Assumed allocation of distributions in excess of loss — (93,025 ) (93,025 ) Add back recast losses attributable to our sponsor and general partner — 8,506 8,506 Add back recast income attributable to Blair through August 31, 2016 — (279 ) (279 ) Add back recast losses attributable to Whitehall and Other Assets — 3,485 3,485 Assumed allocation of net loss $ — $ (81,313 ) $ (81,313 ) Loss per limited partner unit - basic $ (1.64 ) Loss per limited partner unit - diluted $ (1.64 )

Unit-Based Compensation (Tables

Unit-Based Compensation (Tables)	12 Months Ended
Unit-Based Compensation (Tables)	Dec. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Performance Phantom Units Activity	The following table presents information relative to our PPUs. Units Grant Date Weighted-Average Fair Value per Unit Outstanding at December 31, 2017 346,141 $ 14.56 Vested (60,528 ) $ 32.45 Granted 468,500 $ 3.40 Forfeited (6,193 ) $ 33.93 Outstanding at December 31, 2018 747,920 $ 5.93
Schedule of Time-Based Phantom Units Activity	The following table presents information relative to our TPUs. Units Grant Date Weighted-Average Fair Value per Unit Outstanding at December 31, 2017 1,036,592 $ 10.97 Vested (248,724 ) $ 14.68 Granted 967,357 $ 6.91 Forfeited (113,007 ) $ 10.21 Outstanding at December 31, 2018 1,642,218 $ 8.07
Schedule of Unit-Based Compensation Expense	The following table presents total unit-based compensation expense: Year Ended December 31, 2018 2017 2016 Performance Phantom Units $ 1,371 $ 1,549 $ 634 Time-Based Phantom Units 5,261 3,149 1,359 Director and other unit grants 474 499 474 Unit Purchase Programs 333 517 153 Total compensation expense $ 7,439 $ 5,714 $ 2,620

Revenue (Tables)

Revenue (Tables)	12 Months Ended
Revenue (Tables)	Dec. 31, 2018
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenues	The following table presents our revenues disaggregated by contractual relationships: Year Ended December 31, 2018 2017 2016 Sales to contract customers $ 607,898 $ 438,547 $ 169,696 Spot sales 88,705 159,808 33,013 Frac sand sales revenues 696,603 598,355 202,709 Other revenues 146,237 4,268 1,721 Total revenues $ 842,840 $ 602,623 $ 204,430
Changes in Deferred Revenues	The following table reflect the changes in our contract liabilities, which we classify as deferred revenues: Balance at December 31, 2017 $ 11,783 Collection of prepayments 33,841 Revenues recognized (25,696 ) Customer payments acquired in purchase of FB Industries 9,911 Impact of foreign currency translation (54 ) Balance at December 31, 2018 $ 29,785

Impairments and Other Expenses

Impairments and Other Expenses (Tables)	12 Months Ended
Impairments and Other Expenses (Tables)	Dec. 31, 2018
Restructuring and Related Activities [Abstract]
Impairments and Other Expenses	We recognized impairments and other expenses as outlined in the following table: Year Ended December 31, 2018 2017 2016 Impairment of Goodwill $ — $ — $ 33,745 Severance, retention and relocation 1,549 40 280 Contract settlement 1,000 — — Exploration expenses 1 143 — Abandonment of construction projects — 460 — Expiration of exclusivity agreements — 222 — Other 215 — — Impairments and other expenses $ 2,765 $ 865 $ 34,025

Concentration of Credit Risk (T

Concentration of Credit Risk (Tables)	12 Months Ended
Concentration of Credit Risk (Tables)	Dec. 31, 2018
Risks and Uncertainties [Abstract]
Schedule of Concentration of Credit Risk	The following table provides our significant customers that had sales greater than 10% for the years ended December 31, 2018 , 2017 and 2016 : Year Ended December 31, 2018 2017 2016 Customer A 22 % * * Customer B 16 % 26 % 28 % Customer C * 11 % 17 % Customer D * * 14 % Customer E * * 19 % *

Quarterly Financial Data (Una_2

Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
Quarterly Financial Data (Unaudited) (Tables)	Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]
Summary of Quarterly Financial Data	As discussed in Note 2 - Basis of Presentation , the Sponsor Contribution and Whitehall Contribution were accounted for as transactions between entities under common control. Therefore, the Partnership's historical financial information has been recast to include our sponsor and general partner and Whitehall and Other Assets for all periods presented. 2018 First Quarter Second Quarter Third Quarter (a) Fourth Quarter Total Revenues $ 218,113 $ 248,520 $ 213,972 $ 162,235 $ 842,840 Gross profit 68,331 83,507 56,148 18,596 226,582 Income from operations 55,738 69,534 39,759 (1,040 ) 163,991 Net income (loss) 53,431 66,956 27,138 (9,930 ) 137,595 Earnings (loss) per limited partner unit: Basic $ 0.60 $ 0.68 $ 0.30 $ (0.08 ) $ 1.46 2017 Revenues $ 83,364 $ 135,220 $ 167,583 $ 216,456 $ 602,623 Gross profit 6,453 27,742 38,823 61,808 134,826 Income (loss) from operations (5,795 ) 17,978 32,059 49,148 93,390 Net income (loss) (10,962 ) 15,824 29,372 41,928 76,162 Earnings (loss) per limited partner unit: Basic $ (0.07 ) $ 0.18 $ 0.33 $ 0.48 $ 0.97 (a) The third quarter of 2017 includes $3,554

Business and Organization - Nar

Business and Organization - Narrative (Details)	Oct. 21, 2018shares	Dec. 31, 2018shares	Mar. 15, 2017	Mar. 03, 2017a	May 08, 2012
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Percentage of limited partner interest					100.00%
Business Acquisition [Line Items]
Issuance of common units for a business acquisition (in units)		1,279,328
Hi-Crush Augusta LLC
Business Acquisition [Line Items]
Ownership percentage			2.00%
Hi-Crush Proppants LLC \| Common Units
Business Acquisition [Line Items]
Issuance of common units for a business acquisition (in units)	11,000,000
Permian Basin Sand Company, LLC
Business Acquisition [Line Items]
Acres of frac sand reserves acquired \| a				1,226

Significant Accounting Polici_4

Significant Accounting Policies - Narrative (Details) - USD ($)	3 Months Ended		12 Months Ended
	Sep. 30, 2017	Mar. 31, 2016	Dec. 31, 2018	Dec. 31, 2017		Dec. 31, 2016		Jan. 01, 2019	Aug. 01, 2018
Accounting Policies [Abstract]
Allowance for doubtful accounts			$ 1,060,000	$ 1,060,000
Allowance for doubtful accounts, write-off		$ 8,236,000
Line of Credit Facility [Line Items]
Amortization of debt financing costs			1,164,000	2,022,000		$ 3,678,000
Carrying value of long-term debt			454,852,000
Capitalized loan origination costs			12,067,000	4,731,000	[1]	138,000	[1],[2]
Property, Plant and Equipment [Line Items]
Impairment of long-lived assets			0	0		0
Impairment of goodwill			0	0		33,745,000
Impairment of intangible assets			0	0		0
Other operating income	$ 3,554,000		$ 0	3,554,000	[1]	$ 0	[1],[2]
Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life of intangible assets			1 year
Long-term Supply Agreements, expiration year			2,020
Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life of intangible assets			20 years
Long-term Supply Agreements, expiration year			2,024
Term Loan Credit Facility \| $200M Term Loan Credit Facility
Line of Credit Facility [Line Items]
Carrying value of long-term debt			$ 0	200,000,000
Unamortized debt issuance costs in long-term debt				3,643,000
Revolving Credit Facility
Line of Credit Facility [Line Items]
Unamortized debt issuance costs in other assets			1,953,000	1,070,000
Subsequent Event
Property, Plant and Equipment [Line Items]
Right-of-use assets								$ 131,000,000
Lease liabilities								$ 121,000,000
Unsecured Debt \| Senior Unsecured Notes Due 2026
Line of Credit Facility [Line Items]
Senior unsecured notes due 2026									$ 450,000,000
Carrying value of long-term debt			450,000,000	$ 0
Interest rate under Senior Unsecured Notes									9.50%
Unamortized debt issuance costs in long-term debt			9,375,000
Fair value of the Senior Notes			$ 329,625,000

[1]	Financial information has been recast to include the financial position and results attributable to our sponsor and general partner.
[2]	Financial information has been recast to include the results attributable to Hi-Crush Whitehall LLC and Other Assets.

Significant Accounting Polici_5

Significant Accounting Policies - Future Amortization Expense of Deferred Financing Charges (Details) $ in Thousands	Dec. 31, 2018USD ($)
Accounting Policies [Abstract]
Debt issuance costs, amortization expense, next twelve months	$ 1,662
Debt issuance costs, amortization expense, year two	1,662
Debt issuance costs, amortization expense, year three	1,662
Debt issuance costs, amortization expense, year four	1,662
Debt issuance costs, amortization expense, year five	1,485
Debt issuance costs, amortization expense, after year five	3,195
Total unamortized debt issuance costs	$ 11,328

Significant Accounting Polici_6

Significant Accounting Policies - Estimated Useful Lives of Property, Plant and Equipment (Details)	12 Months Ended
	Dec. 31, 2018
Computer equipment
Property, Plant and Equipment [Line Items]
Estimated useful life of property, plant and equipment	3 years
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Estimated useful life of property, plant and equipment	7 years
Vehicles
Property, Plant and Equipment [Line Items]
Estimated useful life of property, plant and equipment	5 years
Equipment \| Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life of property, plant and equipment	5 years
Equipment \| Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life of property, plant and equipment	15 years
Rail spurs and asset retirement obligations \| Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life of property, plant and equipment	17 years
Rail spurs and asset retirement obligations \| Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life of property, plant and equipment	33 years
Rail and rail equipment \| Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life of property, plant and equipment	15 years
Rail and rail equipment \| Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life of property, plant and equipment	20 years
Transload facilities and equipment \| Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life of property, plant and equipment	15 years
Transload facilities and equipment \| Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life of property, plant and equipment	25 years

Acquisitions - Narrative (Detai

Acquisitions - Narrative (Details) $ in Thousands	Oct. 21, 2018USD ($)shares	Aug. 01, 2018USD ($)shares	Mar. 15, 2017USD ($)	Mar. 03, 2017USD ($)ashares	Aug. 31, 2016USD ($)shares	Mar. 31, 2018USD ($)	Dec. 31, 2018USD ($)shares	Dec. 31, 2017USD ($)shares		Dec. 31, 2016USD ($)	[1],[2]
Business Acquisition [Line Items]
Issuance of common units for a business acquisition (in units) \| shares							1,279,328
Issuance of common units for business acquisition							$ 19,190
Cash consideration net of cash and working capital adjustment for acquisition							34,960	$ 0	[1]	$ 0
Issuance of common units for an asset acquisition (in units) \| shares								3,438,789
Issuance of common units for asset acquisition								$ 62,242
Hi-Crush Proppants LLC
Business Acquisition [Line Items]
Fair value of net assets acquired	$ 865
Acquisition related costs							3,810
Hi-Crush Proppants LLC \| Common Units
Business Acquisition [Line Items]
Issuance of common units for a business acquisition (in units) \| shares	11,000,000
FB Industries
Business Acquisition [Line Items]
Payments to acquire business		$ 45,000
Issuance of common units for business acquisition		19,190
Fair value of net assets acquired		74,165
Cash consideration net of cash and working capital adjustment for acquisition		54,975
Cash and working capital adjustment for acquisition		$ 9,975
Acquisition related costs							$ 639
FB Industries \| Common Units
Business Acquisition [Line Items]
Issuance of common units for a business acquisition (in units) \| shares		1,279,328
Hi-Crush Whitehall LLC and Other Assets
Business Acquisition [Line Items]
Payments to acquire business			$ 140,000
Fair value of net assets acquired			124,298
Acquisition related costs								588
Business acquisition, maximum contingent consideration to pay			$ 65,000
Business acquisition, contingent consideration period			2 years
Estimated fair value of contingent consideration liability			$ 14,000
Contingent consideration liability paid						$ 20,000
Hi-Crush Blair LLC
Business Acquisition [Line Items]
Payments to acquire business					$ 75,000
Fair value of net assets acquired					123,563
Acquisition related costs								$ 850
Business acquisition, maximum contingent consideration to pay					10,000
Estimated fair value of contingent consideration liability					$ 5,000
Contingent consideration liability paid						$ 5,000
Hi-Crush Blair LLC \| Common Units
Business Acquisition [Line Items]
Issuance of common units for a business acquisition (in units) \| shares					7,053,292
Permian Basin Sand Company, LLC
Business Acquisition [Line Items]
Cash paid to sellers				$ 200,000
Issuance of common units for asset acquisition				$ 62,242
Acres of frac sand reserves acquired \| a				1,226
Cost of Permian Basin Sand acquisition				$ 263,072
Permian Basin Sand Company, LLC \| Common Units
Business Acquisition [Line Items]
Issuance of common units for an asset acquisition (in units) \| shares				3,438,789

[1]	Financial information has been recast to include the financial position and results attributable to our sponsor and general partner.
[2]	Financial information has been recast to include the results attributable to Hi-Crush Whitehall LLC and Other Assets.

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	[1]
Cost of acquisition	$ 0

[1]	The deemed distribution attributable to the purchase price was allocated to the common unitholders and excludes the $14,000

Acquisitions - Fair value of FB

Acquisitions - Fair value of FB Industries Net Assets Acquired (Details) - FB Industries - USD ($) $ in Thousands	Dec. 31, 2018	Aug. 01, 2018
Business Acquisition [Line Items]
Cash		$ 20,015
Accounts receivable		3,788
Inventories		13,416
Goodwill and intangible assets		69,643
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	$ (8,147)	(8,147)
Fair value of net assets acquired		$ (74,165)

Acquisitions - Summary of total

Acquisitions - Summary of total purchase consideration for Permian Basin Sand Acquisition (Details) - USD ($) $ in Thousands	Mar. 03, 2017	Dec. 31, 2017
Business Acquisition [Line Items]
Issuance of common units for asset acquisition		$ 62,242
Permian Basin Sand Company, LLC
Business Acquisition [Line Items]
Cash paid to sellers	$ 200,000
Issuance of common units for asset acquisition	62,242
Transaction costs associated with the acquisition	830
Cost of Permian Basin Sand acquisition	$ 263,072

Acquisitions - Carrying value_2

Acquisitions - Carrying value of Whitehall and Other Asset's assets and allocation of purchase price (Details) - Hi-Crush Whitehall LLC and Other Assets $ in Thousands	Mar. 15, 2017USD ($)
Business Acquisition [Line Items]
Cash	$ 198
Inventories	4,941
Prepaid expenses and other current assets	3
Property, plant and equipment	124,811
Accounts payable	(938)
Accrued and other current liabilities	(386)
Due to Hi-Crush Partners LP	(2,615)
Asset retirement obligation	(1,716)
Total carrying value of net assets	124,298
Carrying value of sponsor's non-controlling interest prior to the acquiree contribution	119,108
Excess purchase price over the acquired interest	34,892	[1]
Cost of acquisition	$ 154,000

[1]	The deemed distribution attributable to the purchase price was allocated to the common unitholders and excludes the $14,000

Acquisitions - Carrying value_3

Acquisitions - Carrying value of Blair's assets and allocation of cash consideration paid (Details) - Hi-Crush Blair LLC $ in Thousands	Aug. 31, 2016USD ($)
Business Acquisition [Line Items]
Cash	$ 75
Inventories	6,310
Prepaid expenses and other current assets	360
Due from Hi-Crush Partners LP	406
Property, plant and equipment	125,565
Other assets	700
Accounts payable	(5,653)
Accrued and other current liabilities	(2,269)
Due to sponsor	(311)
Due to Hi-Crush Partners LP	(1,240)
Asset retirement obligation	(380)
Total carrying value of net assets	123,563
Carrying value of sponsor's non-controlling interest prior to the acquiree contribution	125,571
Excess carrying value over the purchase price of the acquired interest	(45,571)	[1]
Cost of acquisition	$ 80,000

[1]	The deemed contribution attributable to the purchase price was allocated to the common unitholders and excludes the $5,000

Acquisitions - Recast Financial

Acquisitions - Recast Financial Results (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended									12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	[1]	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017		Dec. 31, 2016
Business Acquisition [Line Items]
Revenues	$ 162,235	$ 213,972	$ 248,520	$ 218,113	$ 216,456	$ 167,583		$ 135,220	$ 83,364	$ 842,840	$ 602,623	[2]	$ 204,430	[2],[3]
Net income (loss)										137,595	76,162		(93,025)
Net income (loss) attributable to Hi-Crush Partners LP	$ (9,930)	$ 27,138	$ 66,956	$ 53,431	$ 41,928	$ 29,372		$ 15,824	$ (10,962)	$ 137,595	$ 76,162	[2]	$ (93,025)	[2],[3]
Net income (loss) per limited partner unit - basic (usd per unit)	$ (0.08)	$ 0.30	$ 0.68	$ 0.60	$ 0.48	$ 0.33		$ 0.18	$ (0.07)	$ 1.46	$ 0.97	[2]	$ (1.64)	[2],[3]
Net income (loss) per limited partner unit - basic, pro forma (usd per unit)										$ 1.42	$ 0.88		$ (1.88)
Historical
Business Acquisition [Line Items]
Revenues										$ 842,840	$ 602,623		$ 204,430
Net income (loss)										140,790	83,979		(81,412)
Net income (loss) attributable to Hi-Crush Partners LP										140,790	84,005		(81,313)
Adjustment \| Hi-Crush Proppants LLC
Business Acquisition [Line Items]
Revenues										0	0		0
Net income (loss)										(3,195)	(6,372)		(8,506)
Net income (loss) attributable to Hi-Crush Partners LP										(3,195)	(6,372)		(8,506)
Adjustment \| Hi-Crush Blair LLC
Business Acquisition [Line Items]
Revenues													13,761
Net income (loss)													716
Net income (loss) attributable to Hi-Crush Partners LP													716
Adjustment \| Hi-Crush Whitehall LLC and Other Assets
Business Acquisition [Line Items]
Revenues											0		8,275
Net income (loss)											(1,366)		(3,778)
Net income (loss) attributable to Hi-Crush Partners LP											(1,392)		(3,877)
Adjustment \| Eliminations
Business Acquisition [Line Items]
Revenues										0	0		(22,036)
Net income (loss)										0	(79)		(45)
Net income (loss) attributable to Hi-Crush Partners LP										$ 0	$ (79)		$ (45)

[1]	The third quarter of 2017 includes $3,554 of other operating income related to a contract dispute that was subsequently resolved.
[2]	Financial information has been recast to include the financial position and results attributable to our sponsor and general partner.
[3]	Financial information has been recast to include the results attributable to Hi-Crush Whitehall LLC and Other Assets.

Inventories - Components of Inv

Inventories - Components of Inventories (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Inventory Disclosure [Abstract]
Raw material	$ 512	$ 498
Work-in-process	29,180	18,739
Finished goods	24,872	22,892
Spare parts	2,525	2,143
Inventories	$ 57,089	$ 44,272	[1]

[1]	Financial information has been recast to include the financial position and results attributable to our sponsor and general partner.

Property, Plant and Equipment -

Property, Plant and Equipment - Components of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 1,158,713	$ 988,174
Less: Accumulated depreciation and depletion	(127,525)	(88,164)
Property, plant and equipment, net	1,031,188	900,010	[1]
Buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment	32,751	22,084
Mining property and mine development
Property, Plant and Equipment [Line Items]
Property, plant and equipment	390,296	381,653
Plant and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment	472,892	383,183
Rail and rail equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment	55,913	55,783
Transload facilities and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment	118,982	116,688
Last mile equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment	66,083	14,276
Construction-in-progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 21,796	$ 14,507

[1]	Financial information has been recast to include the financial position and results attributable to our sponsor and general partner.

Property, Plant and Equipment_2

Property, Plant and Equipment - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017		Dec. 31, 2016
Property, Plant and Equipment [Abstract]
Depreciation and depletion	$ 38,775	$ 29,872	[1]	$ 17,616	[1],[2]
Gain (loss) on disposal of fixed assets	$ (369)	$ (92)		$ 357

[1]	Financial information has been recast to include the financial position and results attributable to our sponsor and general partner.
[2]	Financial information has been recast to include the results attributable to Hi-Crush Whitehall LLC and Other Assets.

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017		Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 21,881	$ 0		$ 0
Amortization of intangible assets	$ 3,374	$ 1,681	[1]	$ 1,682	[1],[2]
Weighted average remaining life of intangible assets	14 years 3 months

[1]	Financial information has been recast to include the financial position and results attributable to our sponsor and general partner.
[2]	Financial information has been recast to include the results attributable to Hi-Crush Whitehall LLC and Other Assets.

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets - Changes in Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017		Dec. 31, 2016
Goodwill
Goodwill, beginning balance	$ 0	$ 0
Goodwill, additions from acquisition	22,876
Goodwill, impact of foreign currency translation	(995)
Goodwill, ending balance	21,881	0		$ 0
Intangible Assets
Intangible assets, beginning balance	8,416	10,097
Amortization of intangible assets	(3,374)	(1,681)	[1]	(1,682)	[1],[2]
Intangible assets, additions from acquisition	46,767
Intangible assets, impact of foreign currency translation	(2,115)
Intangible assets, ending balance	$ 49,694	$ 8,416		$ 10,097

[1]	Financial information has been recast to include the financial position and results attributable to our sponsor and general partner.
[2]	Financial information has been recast to include the results attributable to Hi-Crush Whitehall LLC and Other Assets.

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets - Intangible Assets Arising from Acquisition (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets And Liabilities [Line Items]
Intangible assets	$ 86,502	$ 41,878
Less: Accumulated amortization and impairments	(36,808)	(33,462)
Intangible assets, net	$ 49,694	8,416	$ 10,097
Minimum
Finite-Lived Intangible Assets And Liabilities [Line Items]
Estimated useful life of intangible assets	1 year
Maximum
Finite-Lived Intangible Assets And Liabilities [Line Items]
Estimated useful life of intangible assets	20 years
Patents
Finite-Lived Intangible Assets And Liabilities [Line Items]
Intangible assets	$ 29,620	0
Estimated useful life of intangible assets	15 years
Customer contracts and relationships
Finite-Lived Intangible Assets And Liabilities [Line Items]
Intangible assets	$ 28,724	18,132
Customer contracts and relationships \| Minimum
Finite-Lived Intangible Assets And Liabilities [Line Items]
Estimated useful life of intangible assets	1 year
Customer contracts and relationships \| Maximum
Finite-Lived Intangible Assets And Liabilities [Line Items]
Estimated useful life of intangible assets	10 years
Supplier agreements
Finite-Lived Intangible Assets And Liabilities [Line Items]
Intangible assets	$ 21,997	21,997
Supplier agreements \| Minimum
Finite-Lived Intangible Assets And Liabilities [Line Items]
Estimated useful life of intangible assets	1 year
Supplier agreements \| Maximum
Finite-Lived Intangible Assets And Liabilities [Line Items]
Estimated useful life of intangible assets	20 years
Other intangible assets
Finite-Lived Intangible Assets And Liabilities [Line Items]
Intangible assets	$ 6,161	$ 1,749
Other intangible assets \| Minimum
Finite-Lived Intangible Assets And Liabilities [Line Items]
Estimated useful life of intangible assets	1 year
Other intangible assets \| Maximum
Finite-Lived Intangible Assets And Liabilities [Line Items]
Estimated useful life of intangible assets	3 years

Goodwill and Intangible Asset_5

Goodwill and Intangible Assets - Future Amortization Expense of Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible assets, future amortization expense, next twelve months	$ 5,781
Intangible assets, future amortization expense, year two	5,781
Intangible assets, future amortization expense, year three	5,781
Intangible assets, future amortization expense, year four	5,781
Intangible assets, future amortization expense, year five	3,271
Intangible assets, future amortization expense, after year five	23,299
Intangible assets, net	$ 49,694	$ 8,416	$ 10,097

Equity Method Investments - Sch

Equity Method Investments - Schedule of Equity Method Investments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017		Dec. 31, 2016
Schedule of Equity Method Investments [Line Items]
Investment	$ 37,354	$ 17,475	[1]
Earnings (loss) from equity method investments	5,184	75	[1]	$ 0	[1],[2]
Proppant Express Investments, LLC
Schedule of Equity Method Investments [Line Items]
Investment	30,870	17,475
Earnings (loss) from equity method investments	5,300	75		0
Proppant Logistics, LLC
Schedule of Equity Method Investments [Line Items]
Investment	6,484	0
Earnings (loss) from equity method investments	$ (116)	$ 0		$ 0

[1]	Financial information has been recast to include the financial position and results attributable to our sponsor and general partner.
[2]	Financial information has been recast to include the results attributable to Hi-Crush Whitehall LLC and Other Assets.

Equity Method Investments - Nar

Equity Method Investments - Narrative (Details) - USD ($) $ in Thousands	Oct. 31, 2018	Dec. 31, 2018	Dec. 31, 2017		Dec. 31, 2016
Schedule of Equity Method Investments [Line Items]
Capital contributions made		$ 14,695	$ 7,168	[1]	$ 10,232	[1],[2]
Proppant Express Investments, LLC
Schedule of Equity Method Investments [Line Items]
Capital contributions made		$ 8,095	$ 7,168		$ 10,232
Proppant Logistics, LLC
Schedule of Equity Method Investments [Line Items]
Capital contributions made	$ 6,600

[1]	Financial information has been recast to include the financial position and results attributable to our sponsor and general partner.
[2]	Financial information has been recast to include the results attributable to Hi-Crush Whitehall LLC and Other Assets.

Accrued and Other Current Lia_3

Accrued and Other Current Liabilities - Components of Accrued and Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Payables and Accruals [Abstract]
Accrued royalty payments	$ 6,429	$ 8,763
Accrued logistics costs	10,422	5,878
Accrued compensation and benefits	12,144	9,368
Accrued taxes payable	10,917	5,140
Accrued interest payable	18,464	505
Other current liabilities	2,961	3,796
Accrued and other current liabilities	$ 61,337	$ 33,450	[1]

[1]	Financial information has been recast to include the financial position and results attributable to our sponsor and general partner.

Long-Term Debt - Narrative (Det

Long-Term Debt - Narrative (Details) - USD ($)	Aug. 01, 2018	Jan. 31, 2019	Dec. 31, 2018	Dec. 31, 2017		Dec. 31, 2016		Dec. 22, 2017
Line of Credit Facility [Line Items]
Partnership debt			$ 445,477,000	$ 198,602,000
Carrying value of long-term debt			454,852,000
Letter of credit commitments			21,420,000
Cash consideration paid to acquire land						$ 2,500,000
Loss on extinguishment of debt			(6,233,000)	(4,332,000)	[1]	0	[1],[2]
Other notes payable
Line of Credit Facility [Line Items]
Carrying value of long-term debt			4,852,000	4,237,000
Prepayments made by Partnership on promissory notes			3,378,000	3,651,000
Other notes payable \| Subsequent Event
Line of Credit Facility [Line Items]
Prepayments made by Partnership on promissory notes		$ 694,000
Promissory Note Due in December 2019 \| Other notes payable
Line of Credit Facility [Line Items]
Partnership debt						$ 3,676,000
Effective interest rate						0.74%
Terms of promissory note issued						3 years
Promissory Note Due In August 2021 \| Other notes payable
Line of Credit Facility [Line Items]
Partnership debt			3,676,000
Carrying value of long-term debt			$ 3,352,000
Effective interest rate			2.42%
Terms of promissory note issued			3 years
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			$ 440,625,000
Carrying value of long-term debt			450,000,000	0
Unamortized debt issuance costs in long-term debt			9,375,000
Insurance premium financing \| Other notes payable
Line of Credit Facility [Line Items]
Carrying value of long-term debt			$ 1,500,000
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%
Revolving Credit Facility \| $200M ABL Facility
Line of Credit Facility [Line Items]
Carrying value of long-term debt			$ 0	0
Line of credit facility, maximum borrowing capacity	$ 200,000,000		79,493,000
Line of credit facility, increase in commitment amount	300,000,000
Undrawn borrowing capacity			$ 58,073,000
Revolving Credit Facility \| $200M ABL Facility \| Base Rate \| Minimum
Line of Credit Facility [Line Items]
Interest rate basis points of credit facility			0.75%
Revolving Credit Facility \| $200M ABL Facility \| Base Rate \| Maximum
Line of Credit Facility [Line Items]
Interest rate basis points of credit facility			1.50%
Revolving Credit Facility \| $200M ABL Facility \| Eurodollar \| Minimum
Line of Credit Facility [Line Items]
Interest rate basis points of credit facility			1.75%
Revolving Credit Facility \| $200M ABL Facility \| Eurodollar \| Maximum
Line of Credit Facility [Line Items]
Interest rate basis points of credit facility			2.50%
Term Loan Credit Facility \| $200M Term Loan Credit Facility
Line of Credit Facility [Line Items]
Carrying value of long-term debt			$ 0	200,000,000
Unamortized debt issuance costs in long-term debt				$ 3,643,000
Line of credit facility, maximum borrowing capacity								$ 200,000,000
Letter of Credit \| $200M ABL Facility
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 50,000,000
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%
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%

[1]	Financial information has been recast to include the financial position and results attributable to our sponsor and general partner.
[2]	Financial information has been recast to include the results attributable to Hi-Crush Whitehall LLC and Other Assets.

Long-Term Debt - Components of

Long-Term Debt - Components of Long-Term Debt (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Line of Credit Facility [Line Items]
Partnership debt	$ 454,852,000
Total debt	445,477,000	$ 198,602,000
Less: current portion of long-term debt	(2,194,000)	(4,140,000)	[1]
Long-term debt	443,283,000	194,462,000	[1]
$200M ABL Facility \| Revolving Credit Facility
Line of Credit Facility [Line Items]
Partnership debt	0	0
$200M Term Loan Credit Facility \| Term Loan Credit Facility
Line of Credit Facility [Line Items]
Partnership debt	0	200,000,000
Less: Unamortized original issue discount		(1,992,000)
Less: Unamortized debt issuance costs		(3,643,000)
Unsecured Debt \| Senior Unsecured Notes Due 2026
Line of Credit Facility [Line Items]
Partnership debt	450,000,000	0
Less: Unamortized original issue discount	0
Less: Unamortized debt issuance costs	(9,375,000)
Total debt	440,625,000
Other notes payable
Line of Credit Facility [Line Items]
Partnership debt	$ 4,852,000	$ 4,237,000

[1]	Financial information has been recast to include the financial position and results attributable to our sponsor and general partner.

Long-Term Debt - Schedule of Ma

Long-Term Debt - Schedule of Maturities of Long-term Debt (Details) $ in Thousands	Dec. 31, 2018USD ($)
Debt Disclosure [Abstract]
Debt maturities, repayment of principal in next twelve months	$ 2,194
Debt maturities, repayment of principal in year two	0
Debt maturities, repayment of principal in year three	2,658
Debt maturities, repayment of principal in year four	0
Debt maturities, repayment of principal in year five	0
Debt maturities, repayment of principal after year five	450,000
Partnership debt	$ 454,852

Asset Retirement Obligations -

Asset Retirement Obligations - Reconciliation of Total Reclamation Liability (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017		Dec. 31, 2016
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Asset retirement obligations at beginning of period	$ 10,179	$ 9,514		$ 8,711
Additions to liabilities		207		373
Accretion expense	498	458	[1]	430	[1],[2]
Asset retirement obligations at end of period	$ 10,677	$ 10,179		$ 9,514

[1]	Financial information has been recast to include the financial position and results attributable to our sponsor and general partner.
[2]	Financial information has been recast to include the results attributable to Hi-Crush Whitehall LLC and Other Assets.

Commitments and Contingencies -

Commitments and Contingencies - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Aug. 01, 2018
Long-term Purchase Commitment [Line Items]
Payments for non-delivery of minimum annual sand volumes	$ 0
Royalty expense	$ 15,478	$ 19,091	$ 6,725
Property value guarantees, sale period threshold	180 days
Property value guaranty purchases	$ 3,085
Rail car rental expense	31,393	27,410	28,597
Proppant Express Investments, LLC
Long-term Purchase Commitment [Line Items]
Lease expense, related party	$ 5,306	$ 1,577	$ 124
Minimum
Long-term Purchase Commitment [Line Items]
Initial term of contracted minimum sand volumes	1 year
Maximum
Long-term Purchase Commitment [Line Items]
Initial term of contracted minimum sand volumes	7 years
FB Industries
Long-term Purchase Commitment [Line Items]
Business acquisition, estimated fair value contingent consideration to pay	$ 8,147			$ 8,147
Sensitivity analysis of fair value of contingent consideration, impact of 50 percent change in assumptions	3,152
FB Industries \| Minimum
Long-term Purchase Commitment [Line Items]
Sensitivity analysis of fair value of contingent consideration, impact of 10 percent change in assumptions	6,299
FB Industries \| Maximum
Long-term Purchase Commitment [Line Items]
Sensitivity analysis of fair value of contingent consideration, impact of 10 percent change in assumptions	$ 10,324

Commitments and Contingencies_2

Commitments and Contingencies - Schedule of Contractual Obligations (Details) $ in Thousands	Dec. 31, 2018USD ($)
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [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
Contractual Obligation, Fiscal Year Maturity Schedule [Abstract]
Minimum purchase commitments, due in twelve months	7,346
Minimum purchase commitments, due in second year	3,745
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	$ 18,718

Equity - Narrative (Details)

Equity - Narrative (Details) - USD ($)	Oct. 21, 2018	Aug. 01, 2018	Mar. 03, 2017	Jan. 04, 2017	Dec. 31, 2018		Dec. 31, 2017		Dec. 31, 2016		Dec. 31, 2018	Oct. 17, 2017
Class of Stock [Line Items]
Issuance of common units for a business acquisition (in units)					1,279,328
Number of common units issued (in units)							23,575,000		19,550,000
Proceeds from equity issuances, net					$ 0		$ 412,577,000	[1]	$ 189,037,000	[1],[2]
Issuance of common units for an asset acquisition (in units)							3,438,789
Number of common units repurchased, cumulative (in units)					753,090		2,030,163
Repurchase of common units, cumulative vale					$ 9,426,000		$ 20,000,000
Common unit aggregate offering price, maximum amount				$ 50,000,000
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)					2,390,138		1,382,733		0
Cash distribution paid to members of Hi-Crush Proppants LLC					$ 39,516,000	[1]	$ 69,215,000	[1]	$ 0
Distribution of common units to members of Hi-Crush Proppants LLC (in units)							20,693,643
Acquisition of sponsor and general partner	$ 453,028,000				0
General Partner and IDRs
Class of Stock [Line Items]
Net income (loss) allocated to holders of incentive distribution rights					$ 7,664,000		$ 0		$ 0
Minimum
Class of Stock [Line Items]
Incentive distribution rights, distribution levels in percentage					15.00%
Maximum
Class of Stock [Line Items]
Incentive distribution rights, distribution levels in percentage					50.00%
Sponsor Owned Common Units
Class of Stock [Line Items]
Distribution of common units to members of Hi-Crush Proppants LLC (in units)							20,693,643
Common Units \| FB Industries
Class of Stock [Line Items]
Issuance of common units for a business acquisition (in units)		1,279,328
October 2017 Unit Repurchase Plan
Class of Stock [Line Items]
Repurchase of common units, authorized amount												$ 100,000,000
Repurchase of common units, cumulative vale					$ 9,426,000		$ 20,000,000				$ 29,426,000
Repurchase of common units, remaining authorized amount					$ 70,574,000						$ 70,574,000
October 2017 Unit Repurchase Plan \| Common Units
Class of Stock [Line Items]
Number of common units repurchased, cumulative (in units)					753,090		2,030,163				2,783,253
Hi-Crush Partners LP Long-Term Incentive Plan
Class of Stock [Line Items]
Weighted average potentially dilutive common units outstanding (in units)					2,390,138		1,382,733
Potentially dilutive awards granted and outstanding excluded from diluted earnings per unit calculation (in units)									579,781
Permian Basin Sand Company, LLC \| Common Units
Class of Stock [Line Items]
Issuance of common units for an asset acquisition (in units)			3,438,789

[1]	Financial information has been recast to include the financial position and results attributable to our sponsor and general partner.
[2]	Financial information has been recast to include the results attributable to Hi-Crush Whitehall LLC and Other Assets.

Equity - Schedule of Common Uni

Equity - Schedule of Common Unit Repurchases (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended		14 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018
Capital Unit [Line Items]
Number of common units repurchased (in units)	753,090	2,030,163
Repurchase of common units	$ 9,426	$ 20,000
October 2017 Unit Repurchase Plan
Capital Unit [Line Items]
Repurchase of common units, average price including commissions (usd per unit)	$ 12.52	$ 9.85
Repurchase of common units	$ 9,426	$ 20,000	$ 29,426
October 2017 Unit Repurchase Plan \| Common Units
Capital Unit [Line Items]
Number of common units repurchased (in units)	753,090	2,030,163	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	Nov. 14, 2017	Oct. 16, 2017	Dec. 31, 2018	Dec. 31, 2017		Dec. 31, 2016
Distribution Made to Limited Partner [Line Items]
Amount Declared Per Unit (usd per unit)											$ 1.20	$ 0.35	[1]	$ 0	[1],[2]
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		$ 7,664	$ 0		$ 0
Limited Partner
Distribution Made to Limited Partner [Line Items]
Amount Declared Per Unit (usd per unit)		$ 0.2250		$ 0.7500		$ 0.2250		$ 0.2000		$ 0.1500
Payment to Limited Partner Units	$ 22,695		$ 67,253		$ 19,888		$ 17,809		$ 13,656

[1]	Financial information has been recast to include the financial position and results attributable to our sponsor and general partner.
[2]	Financial information has been recast to include the results attributable to Hi-Crush Whitehall LLC and Other Assets.

Equity - Weighted Average Limit

Equity - Weighted Average Limited Partner Units Outstanding (Details) - shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017		Dec. 31, 2016
Equity [Abstract]
Weighted average limited partner units outstanding, basic (in units)	91,248,042	86,518,249	[1]	49,567,268	[1],[2]
Weighted average potentially dilutive common units outstanding (in units)	2,390,138	1,382,733		0
Weighted average limited partner units outstanding, diluted (in units)	93,638,180	87,900,982	[1]	49,567,268	[1],[2]

[1]	Financial information has been recast to include the financial position and results attributable to our sponsor and general partner.
[2]	Financial information has been recast to include the results attributable to Hi-Crush Whitehall LLC and Other Assets.

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	Nov. 14, 2017	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	[1]	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017		Dec. 31, 2016
Distribution Made to Limited Partner [Line Items]
Declared distributions to Limited Partner Units															$ 117,500	$ 31,457		$ 0
Assumed allocation of earnings (loss) in excess of distributions															20,095	44,705		(93,025)
Assumed allocation of net income (loss) to Limited Partners															$ 140,790	$ 84,005		$ (81,313)
Earnings (loss) per limited partner unit - basic (usd per unit)						$ (0.08)	$ 0.30	$ 0.68	$ 0.60	$ 0.48	$ 0.33		$ 0.18	$ (0.07)	$ 1.46	$ 0.97	[2]	$ (1.64)	[2],[3]
Earnings (loss) per limited partner unit - diluted (usd per unit)															$ 1.42	$ 0.96	[2]	$ (1.64)	[2],[3]
Hi-Crush Proppants LLC
Distribution Made to Limited Partner [Line Items]
Add back recast income (losses) attributable to assets contributed by the sponsor															$ 3,195	$ 6,372		$ 8,506
Hi-Crush Whitehall LLC and Other Assets
Distribution Made to Limited Partner [Line Items]
Add back recast income (losses) attributable to assets contributed by the sponsor																1,471		3,485
Hi-Crush Blair LLC
Distribution Made to Limited Partner [Line Items]
Add back recast income (losses) attributable to assets contributed by the sponsor																		(279)
Common Units
Distribution Made to Limited Partner [Line Items]
Declared distributions to Limited Partner Units															109,836	31,457		0
Assumed allocation of earnings (loss) in excess of distributions															20,095	44,705		(93,025)
Assumed allocation of net income (loss) to Limited Partners															133,126	84,005		(81,313)
Common Units \| Hi-Crush Proppants LLC
Distribution Made to Limited Partner [Line Items]
Add back recast income (losses) attributable to assets contributed by the sponsor															3,195	6,372		8,506
Common Units \| Hi-Crush Whitehall LLC and Other Assets
Distribution Made to Limited Partner [Line Items]
Add back recast income (losses) attributable to assets contributed by the sponsor																1,471		3,485
Common Units \| Hi-Crush Blair LLC
Distribution Made to Limited Partner [Line Items]
Add back recast income (losses) attributable to assets contributed by the sponsor																		(279)
General Partner and IDRs
Distribution Made to Limited Partner [Line Items]
Distributions made to holders of incentive distribution rights	$ 0	$ 7,664	$ 0	$ 0	$ 0										7,664	0		0
Assumed allocation of earnings (loss) in excess of distributions															0	0		0
Assumed allocation of net income (loss) to General Partner and IDRs															$ 7,664	$ 0		$ 0

[1]	The third quarter of 2017 includes $3,554 of other operating income related to a contract dispute that was subsequently resolved.
[2]	Financial information has been recast to include the financial position and results attributable to our sponsor and general partner.
[3]	Financial information has been recast to include the results attributable to Hi-Crush Whitehall LLC and Other Assets.

Unit-Based Compensation - Narra

Unit-Based Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	Feb. 28, 2017	Jan. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Sep. 21, 2016
Common Units \| Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common units issued to directors (in units)			36,109	29,148	103,377
Common Units \| Subsequent Event \| Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common units issued to directors (in units)		62,184
Unit Purchase Programs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Discount of fair value on common units from the applicable election date	10.00%		15.00%
Issuance of units under Unit Purchase Programs (in units)	300,090
Weighted average purchase price of common units purchased under Unit Purchase Programs (usd per unit)	$ 5.49
Hi-Crush Partners LP Long Term Incentive Plan \| Performance Phantom Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			3 years
Number of common unit of each award			1
Total compensation expense not yet recognized			$ 2,181
Weighted average remaining service period			2 years 1 month 6 days
Weighted average grant date fair value (in usd per unit)			$ 3.40	$ 6.85	$ 15.94
Fair value of units vested			$ 1,964	$ 0	$ 0
Hi-Crush Partners LP Long Term Incentive Plan \| Performance Phantom Units \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage			0.00%
Hi-Crush Partners LP Long Term Incentive Plan \| Performance Phantom Units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage			200.00%
Hi-Crush Partners LP Long Term Incentive Plan \| Time-Based Phantom Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			3 years
Number of common unit of each award			1
Total compensation expense not yet recognized			$ 8,944
Weighted average remaining service period			2 years 2 months 12 days
Weighted average grant date fair value (in usd per unit)			$ 6.91	$ 8.94	$ 12.96
Fair value of units vested			$ 3,651	$ 714	$ 62
Hi-Crush Partners LP Long Term Incentive Plan \| Common Units
Share-based Compensation Arrangement by Share-based Payment Award [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 - $ / shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Performance Phantom Units
Outstanding units at beginning of period	346,141
Vested units	(60,528)
Granted units	468,500
Forfeited units	(6,193)
Outstanding units at end of period	747,920	346,141
Grant Date Weighted-Average Fair Value per Unit
Outstanding units at beginning of period (usd per unit)	$ 14.56
Vested (usd per unit)	32.45
Granted (usd per unit)	3.40	$ 6.85	$ 15.94
Forfeited (usd per unit)	33.93
Outstanding units at end of period (usd per unit)	$ 5.93	$ 14.56

Unit-Based Compensation - Time-

Unit-Based Compensation - Time-Based Phantom Units (Details) - Hi-Crush Partners LP Long Term Incentive Plan - Time-Based Phantom Units - $ / shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Time-Based Phantom Units
Outstanding units at beginning of period	1,036,592
Vested units	(248,724)
Granted units	967,357
Forfeited units	(113,007)
Outstanding units at end of period	1,642,218	1,036,592
Grant Date Weighted-Average Fair Value per Unit
Outstanding units at beginning of period (usd per unit)	$ 10.97
Vested (usd per unit)	14.68
Granted (usd per unit)	6.91	$ 8.94	$ 12.96
Forfeited (usd per unit)	10.21
Outstanding units at end of period (usd per unit)	$ 8.07	$ 10.97

Unit-Based Compensation - Total

Unit-Based Compensation - Total Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Compensation Expense [Line Items]
Total compensation expense	$ 7,439	$ 5,714	$ 2,620
Performance Phantom Units
Compensation Expense [Line Items]
Total compensation expense	1,371	1,549	634
Time-Based Phantom Units
Compensation Expense [Line Items]
Total compensation expense	5,261	3,149	1,359
Director and other unit grants
Compensation Expense [Line Items]
Total compensation expense	474	499	474
Unit Purchase Programs
Compensation Expense [Line Items]
Total compensation expense	$ 333	$ 517	$ 153

Revenue - Narrative (Details)

Revenue - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
Revenue - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Deferred revenues	$ 29,785	$ 11,783
Expected period to recognize deferred revenues over	1 year 8 months 12 days
Minimum
Disaggregation of Revenue [Line Items]
Long-term Supply Agreements, expiration year	2,020
Maximum
Disaggregation of Revenue [Line Items]
Long-term Supply Agreements, expiration year	2,024

Revenue - Revenues Disaggregate

Revenue - Revenues Disaggregated by Contractual Obligations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disaggregation of Revenue [Line Items]
Total revenues	$ 842,840	$ 602,623	$ 204,430
Frac sand sales revenues
Disaggregation of Revenue [Line Items]
Total revenues	696,603	598,355	202,709
Sales to contract customers
Disaggregation of Revenue [Line Items]
Total revenues	607,898	438,547	169,696
Spot sales
Disaggregation of Revenue [Line Items]
Total revenues	88,705	159,808	33,013
Other revenues
Disaggregation of Revenue [Line Items]
Total revenues	$ 146,237	$ 4,268	$ 1,721

Revenue - Deferred Revenues (De

Revenue - Deferred Revenues (Details) $ in Thousands	12 Months Ended
Revenue - Deferred Revenues (Details) $ in Thousands	Dec. 31, 2018USD ($)
Business Acquisition [Line Items]
Deferred revenues, at beginning of period	$ 11,783
Collection of prepayments	33,841
Revenues recognized	(25,696)
Impact of foreign currency translation	(54)
Deferred revenues, at end of period	29,785
FB Industries
Business Acquisition [Line Items]
Customer payments acquired in purchase of FB Industries	$ 9,911

Related Party Transactions - Na

Related Party Transactions - Narrative (Details) - Proppant Express Investments, LLC - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Related Party Transaction [Line Items]
Purchases from related parties	$ 4,646	$ 5,033
Accounts payable, related party	1,070	1,273
Lease expense, related party	$ 5,306	$ 1,577	$ 124

Impairments and Other Expense_2

Impairments and Other Expenses - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Restructuring and Related Activities [Abstract]
Impairment of goodwill	$ 0	$ 0	$ 33,745

Impairments and Other Expense_3

Impairments and Other Expenses - Components of Impairments and Other Expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017		Dec. 31, 2016
Restructuring and Related Activities [Abstract]
Impairment of Goodwill	$ 0	$ 0		$ 33,745
Severance, retention and relocation	1,549	40		280
Contract settlement	1,000	0		0
Exploration expenses	1	143		0
Abandonment of construction projects	0	460		0
Expiration of exclusivity agreements	0	222		0
Other	215	0		0
Impairments and other expenses	$ 2,765	$ 865	[1]	$ 34,025	[1],[2]

[1]	Financial information has been recast to include the financial position and results attributable to our sponsor and general partner.
[2]	Financial information has been recast to include the results attributable to Hi-Crush Whitehall LLC and Other Assets.

Segment Reporting - Narrative (

Segment Reporting - Narrative (Details)	12 Months Ended
Segment Reporting - Narrative (Details)	Dec. 31, 2018segment
Segment Reporting [Abstract]
Number of operating segments	1

Concentration of Credit Risk -

Concentration of Credit Risk - Significant Customers Concentration Risk (Details) - Customer Concentration Risk - Sales Revenue, Net	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Customer A
Concentration Risk [Line Items]
Percentage of revenue accounted by customers	22.00%
Customer B
Concentration Risk [Line Items]
Percentage of revenue accounted by customers	16.00%	26.00%	28.00%
Customer C
Concentration Risk [Line Items]
Percentage of revenue accounted by customers		11.00%	17.00%
Customer D
Concentration Risk [Line Items]
Percentage of revenue accounted by customers			14.00%
Customer E
Concentration Risk [Line Items]
Percentage of revenue accounted by customers			19.00%

Quarterly Financial Data (Una_3

Quarterly Financial Data (Unaudited) - Summary of Quarterly Financial Data (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended									12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017		Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	[2]	Dec. 31, 2016	[2],[3]
Quarterly Financial Information Disclosure [Abstract]
Revenues	$ 162,235	$ 213,972	$ 248,520	$ 218,113	$ 216,456	$ 167,583	[1]	$ 135,220	$ 83,364	$ 842,840	$ 602,623		$ 204,430
Gross profit	18,596	56,148	83,507	68,331	61,808	38,823	[1]	27,742	6,453	226,582	134,826		(910)
Income (loss) from operations	(1,040)	39,759	69,534	55,738	49,148	32,059	[1]	17,978	(5,795)	163,991	93,390		(72,172)
Net income (loss)	$ (9,930)	$ 27,138	$ 66,956	$ 53,431	$ 41,928	$ 29,372	[1]	$ 15,824	$ (10,962)	$ 137,595	$ 76,162		$ (93,025)
Earnings (loss) per limited partner unit - basic (usd per unit)	$ (0.08)	$ 0.30	$ 0.68	$ 0.60	$ 0.48	$ 0.33	[1]	$ 0.18	$ (0.07)	$ 1.46	$ 0.97		$ (1.64)
Other operating income						$ 3,554				$ 0	$ 3,554		$ 0

[1]	The third quarter of 2017 includes $3,554 of other operating income related to a contract dispute that was subsequently resolved.
[2]	Financial information has been recast to include the financial position and results attributable to our sponsor and general partner.
[3]	Financial information has been recast to include the results attributable to Hi-Crush Whitehall LLC and Other Assets.

Schedule II - Valuation and Q_2

Schedule II - Valuation and Qualifying Accounts - (Details) - Allowance for doubtful accounts - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Movement in Valuation Allowances and Reserves [Roll Forward]
Allowance for doubtful accounts, beginning balance	$ 1,060	$ 1,549	$ 663
Charged to costs and expenses	0	0	8,236
Deductions	0	(489)	(7,350)
Allowance for doubtful accounts, ending balance	$ 1,060	$ 1,060	$ 1,549