Lantheus (LNTH) 10-Q 1 Aug 18 2018 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Jul. 27, 2018
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Trading Symbol	LNTH
Entity Registrant Name	LANTHEUS HOLDINGS, INC.
Entity Central Index Key	1,521,036
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding (in shares)		38,299,884

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets
Cash and cash equivalents	$ 86,464	$ 76,290
Accounts receivable, net	44,192	40,259
Inventory	31,474	26,080
Other current assets	4,925	5,221
Total current assets	167,055	147,850
Property, plant & equipment, net	96,817	92,999
Intangibles, net	10,409	11,798
Goodwill	15,714	15,714
Deferred tax assets, net	82,039	87,010
Other long-term assets	29,769	28,487
Total assets	401,803	383,858
Current liabilities
Current portion of long-term debt	2,750	2,750
Revolving line of credit	0	0
Accounts payable	15,313	17,464
Accrued expenses and other liabilities	25,186	26,536
Total current liabilities	43,249	46,750
Asset retirement obligations	10,992	10,412
Long-term debt, net	264,551	265,393
Other long-term liabilities	38,478	38,012
Total liabilities	357,270	360,567
Commitments and contingencies (See Note 13)
Stockholders’ equity
Preferred stock ($0.01 par value, 25,000 shares authorized; no shares issued and outstanding)	0	0
Common stock ($0.01 par value, 250,000 shares authorized; 38,298 and 37,765 shares issued and outstanding, respectively)	383	378
Additional paid-in capital	235,882	232,960
Accumulated deficit	(190,702)	(209,013)
Accumulated other comprehensive loss	(1,030)	(1,034)
Total stockholders’ equity	44,533	23,291
Total liabilities and stockholders’ equity	$ 401,803	$ 383,858

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Jun. 30, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	25,000	25,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	250,000,000	250,000,000
Common stock, shares issued (in shares)	38,298,000	37,765,000
Common stock, shares outstanding (in shares)	38,298,000	37,765,000

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Statement [Abstract]
Revenues	$ 85,573,000	$ 88,837,000	$ 168,203,000	$ 170,196,000
Cost of goods sold	41,727,000	42,890,000	82,048,000	84,487,000
Gross profit	43,846,000	45,947,000	86,155,000	85,709,000
Operating expenses
Sales and marketing	12,130,000	11,603,000	22,770,000	21,817,000
General and administrative	11,575,000	11,203,000	24,118,000	23,473,000
Research and development	4,215,000	5,244,000	8,204,000	10,595,000
Total operating expenses	27,920,000	28,050,000	55,092,000	55,885,000
Operating income	15,926,000	17,897,000	31,063,000	29,824,000
Interest expense	4,298,000	4,285,000	8,348,000	9,705,000
Loss on extinguishment of debt	0	0	0	2,161,000
Other income	(336,000)	(552,000)	(1,256,000)	(1,129,000)
Income before income taxes	11,964,000	14,164,000	23,971,000	19,087,000
Income tax expense	2,219,000	569,000	6,015,000	1,354,000
Net income	$ 9,745,000	$ 13,595,000	$ 17,956,000	$ 17,733,000
Net income per common share:
Basic (in dollars per share)	$ 0.25	$ 0.37	$ 0.47	$ 0.48
Diluted (in dollars per share)	$ 0.25	$ 0.35	$ 0.45	$ 0.46
Weighted-average common shares outstanding:
Basic (in shares)	38,233	37,235	38,060	37,063
Diluted (in shares)	39,398	38,900	39,468	38,726

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 9,745	$ 13,595	$ 17,956	$ 17,733
Other comprehensive income (loss):
Foreign currency translation	4	(20)	4	(24)
Total other comprehensive income (loss)	4	(20)	4	(24)
Comprehensive income	$ 9,749	$ 13,575	$ 17,960	$ 17,709

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Operating activities
Net income	$ 17,956	$ 17,733
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation, amortization and accretion	7,089	11,271
Amortization of debt related costs	639	696
Provision for bad debt	166	0
Provision for excess and obsolete inventory	1,959	730
Stock-based compensation	4,012	2,107
Loss on extinguishment of debt and debt retirement costs	0	2,161
Deferred taxes	4,539	0
Long-term income tax receivable	(1,528)	(980)
Long-term income tax payable and other long-term liabilities	1,517	1,357
Other	346	404
Increases (decreases) in cash from operating assets and liabilities:
Accounts receivable	(4,223)	(6,368)
Inventory	(6,714)	(4,232)
Other current assets	(581)	(249)
Accounts payable	(2,900)	767
Accrued expenses and other liabilities	(2,667)	694
Net cash provided by operating activities	19,610	26,091
Investing activities
Capital expenditures	(7,761)	(8,301)
Proceeds from sales of assets	1,000	1,234
Net cash used in investing activities	(6,761)	(7,067)
Financing activities
Proceeds from issuance of long-term debt	0	274,313
Payments on long-term debt	(1,431)	(285,265)
Deferred financing costs	0	(1,576)
Payments for public offering costs	0	(74)
Proceeds from stock option exercises	1,140	1,078
Proceeds from issuance of common stock	206	0
Payments for minimum statutory tax withholding related to net share settlement of equity awards	(2,432)	(1,557)
Net cash used in financing activities	(2,517)	(13,081)
Effect of foreign exchange rates on cash and cash equivalents	(158)	33
Net increase in cash and cash equivalents	10,174	5,976
Cash and cash equivalents, beginning of period	76,290	51,178
Cash and cash equivalents, end of period	$ 86,464	$ 57,154

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2018
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements include the accounts of Lantheus Holdings, Inc. and its direct and indirect wholly-owned subsidiaries and have been prepared in accordance with generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, these condensed consolidated financial statements do not include all of the information and notes required by generally accepted accounting principles in the United States of America (“U.S. GAAP”) for complete financial statements. In the opinion of management, all adjustments (consisting of normal and recurring adjustments) considered necessary for a fair statement have been included. The results of operations for the three and six months ended June 30, 2018 are not necessarily indicative of the results that may be expected for the year ended December 31, 2018 or any future period. The condensed consolidated balance sheet at December 31, 2017 has been derived from the audited consolidated financial statements at that date but does not include all of the information and notes required by U.S. GAAP for complete financial statements. These condensed consolidated financial statements and accompanying notes should be read in conjunction with the consolidated financial statements and notes thereto included in Item 8 of the Company’s most recent Annual Report on Form 10-K for the year ended December 31, 2017 filed with the Securities Exchange Commission (“SEC”) on February 26, 2018. Certain immaterial amounts in the prior period condensed consolidated statement of cash flows have been reclassified to conform to the current period financial statement presentation.

Summary of Significant Accounti

Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2018
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Recent Accounting Pronouncements The following table provides a description of recent accounting pronouncements that may have a material effect on the Company’s condensed consolidated financial statements: Standard Description Effective Date for Company Effect on the Condensed Consolidated Financial Statements Recently Issued Accounting Standards Not Yet Adopted ASU 2016-02, Leases (Topic 842) This ASU supersedes existing guidance on accounting for leases in “Leases (Topic 840)” and generally requires all leases to be recognized on the balance sheet. The provisions of ASU 2016-02 are effective for annual reporting periods beginning after December 15, 2018; early adoption is permitted. The provisions of this ASU are to be applied using a modified retrospective approach at the earliest period presented or at the period of adoption. January 1, 2019 The Company is currently in the process of performing an assessment on the impact of the standard, including optional practical expedients and transition methods that the Company may elect upon adoption and is progressing with an implementation plan. The implementation plan includes identifying the Company’s lease population, updating the Company’s lease database and identifying changes to processes and controls. The Company is currently assessing the impact that this standard will have on its consolidated financial statements. Standard Description Effective Date for Company Effect on the Condensed Consolidated Financial Statements Accounting Standards Adopted During the Six Months Ended June 30, 2018 ASU 2017-09, Compensation—Stock Compensation (Topic 718): Scope of Modification Accounting This ASU clarifies when to account for a change to the terms or conditions of a share–based payment award as a modification. Under the new guidance, modification accounting is required only if the fair value, vesting conditions or classification of the award (as equity or liability) changes as a result of the change in terms or conditions. January 1, 2018 The adoption of this standard did not have a material impact on the Company’s condensed consolidated financial statements. ASU 2014-09, Revenue from Contracts with Customers (Topic 606) and related amendments This ASU and related amendments affect any entity that either enters into contracts with customers to transfer goods or services or enters into contracts for the transfer of nonfinancial assets, unless those contracts are within the scope of other standards. The guidance in this ASU supersedes the revenue recognition requirements in Topic 605, Revenue Recognition and most industry-specific guidance. The core principle of the guidance is that an entity should recognize revenue upon the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. January 1, 2018 See Note 3, "Revenue from Contracts with Customers" for the required disclosures related to the impact of adopting this standard. The adoption of this standard did not have a material impact on the Company’s condensed consolidated balance sheets and statements of operations.

Revenue from Contracts with Cus

Revenue from Contracts with Customers	6 Months Ended
	Jun. 30, 2018
Revenue from Contract with Customer [Abstract]
Revenue from Contracts with Customers	Revenue from Contracts with Customers Adoption of ASC Topic 606, “Revenue from Contracts with Customers” The Company adopted ASC 606 on January 1, 2018 using the modified retrospective method for all contracts not completed as of the date of adoption. The reported results for 2018 reflect the application of ASC 606 guidance while the reported results for 2017 were prepared under the guidance of ASC 605, Revenue Recognition (“ASC 605”). For the Company’s accounting policy for revenue recognition under ASC 605, refer to Item 8 of the Annual Report on Form 10-K for the year ended December 31, 2017. The adoption of ASC 606 did not have a material impact on the Company’s consolidated balance sheet, results of operations, equity or cash flows as of the adoption date or for the periods presented. Revenue Recognition In accordance with ASC 606, revenue is recognized when a customer obtains control of promised goods or services. The amount of revenue recognized reflects the consideration to which the Company expects to be entitled to receive in exchange for these goods or services. To achieve this core principle, the Company applies the following five steps: (1) identify the contracts with a customer; (2) identify the performance obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to the performance obligations in the contract; and (5) recognize revenue when (or as) the Company satisfies a performance obligation. Disaggregation of Revenue The following table summarizes revenue by revenue source and reportable segment as follows: Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 Major Products/Service Lines (in thousands) U.S. International Total U.S. International Total Product revenue, net (1) $ 74,086 $ 10,918 $ 85,004 $ 145,574 $ 21,498 $ 167,072 License and royalty revenues — 569 569 — 1,131 1,131 Total revenues $ 74,086 $ 11,487 $ 85,573 $ 145,574 $ 22,629 $ 168,203 ________________________________ (1) The Company’s principal products include DEFINITY, TechneLite and Xenon and are categorized within product revenue, net. The Company applies the same revenue recognition policies and judgments for all of its principal products. Product Revenue, Net The Company sells its products principally to distributors, radiopharmacies and directly to hospitals and clinics. The Company considers customer purchase orders, which in some cases are governed by master sales or group purchasing organization agreements, to be the contracts with a customer. For each contract, the Company considers the promise to transfer products, each of which is distinct, to be the identified performance obligations. In determining the transaction price, the Company evaluates whether the price is subject to refund or adjustment to determine the net consideration to which the Company expects to be entitled. The Company typically invoices customers upon satisfaction of identified performance obligations. As the Company’s standard payment terms are 30 to 60 days from invoicing, the Company has elected to use the significant financing component practical expedient under ASC 606-10-32-18. The Company allocates the transaction price to each distinct product based on their relative standalone selling price. The product price as specified on the purchase order is considered the standalone selling price as it is an observable input which depicts the price as if sold to a similar customer in similar circumstances. Revenue is recognized when control of the product is transferred to the customer (i.e., when the Company’s performance obligation is satisfied), which typically occurs upon delivery to the customer. Further, in determining whether control has transferred, the Company considers if there is a present right to payment and legal title, along with risks and rewards of ownership having transferred to the customer. Frequently, the Company receives orders for products to be delivered over multiple dates that may extend across several reporting periods. The Company invoices for each delivery upon shipment and recognizes revenues for each distinct product delivered, assuming transfer of control has occurred. The Company generally does not separately charge customers for shipping and handling costs, but any shipping and handling costs charged to customers are included in product revenue, net. Taxes collected from customers relating to product sales and remitted to governmental authorities are excluded from revenues. Variable Consideration Revenues from product sales are recorded at the net sales price (transaction price), which includes estimates of variable consideration for which reserves are established for discounts, returns, rebates and allowances that are offered within contracts between the Company and its customers. These reserves are based on the amounts earned or to be claimed on the related sales and are classified as a current liability. Where appropriate, these estimates take into consideration a range of possible outcomes which are probability-weighted for relevant factors such as the Company’s historical experience, current contractual and statutory requirements, specific known market events and trends, industry data and forecasted customer buying and payment patterns. Overall, these reserves reflect the Company’s best estimates of the amount of consideration to which it is entitled based on the terms of the contract. The amount of variable consideration which is included in the transaction price may be constrained, and is included in the net sales price only to the extent that it is probable that a significant reversal in the amount of the cumulative revenue recognized will not occur in a future period. Actual amounts of consideration ultimately received may differ from the Company’s estimates. If actual results in the future vary from the Company’s estimates, the Company adjusts these estimates, which would affect product revenue and earnings in the period such variances become known. Rebates and Allowances: The Company provides certain customers with rebates and allowances that are explicitly stated in the Company’s contracts and are recorded as a reduction of revenue in the period the related product revenue is recognized. The Company establishes a liability for such amounts, which is included in accrued expenses in the accompanying condensed consolidated balance sheets. These rebates and allowances result from performance-based offers that are primarily based on attaining contractually specified sales volumes and administrative fees the Company is required to pay to group purchasing organizations. The Company estimates the amount of rebates and allowances that are explicitly stated in the Company’s contracts based on a combination of actual purchases and an estimate of the customer’s buying patterns. Product Returns: The Company generally offers customers a limited right of return due to non-conforming product. The Company estimates the amount of its product sales that may be returned by its customers and records this estimate as a reduction of revenue in the period the related product revenue is recognized. The Company currently estimates product return liabilities using its historical product return information and considers other factors that it believes could significantly impact its expected returns, including product recalls. Reserves for product returns are not significant to the Company due to the nature of its products including radiopharmaceutical products with limited half-lives. The following table summarizes activity for reserves relating to rebate and allowances (including group purchasing organization administrative fees and returns) for the six months ended June 30, 2018 : (in thousands) Rebates and Allowances Balance, January 1, 2018 $ 2,860 Provision related to current period revenues 6,550 Adjustments relating to prior period revenues (260 ) Payments or credits made during the period (5,245 ) Balance, June 30, 2018 $ 3,905 License and Royalty Revenues The Company has entered into licensing agreements, which are within the scope of ASC 606, under which it licenses certain rights to third parties. The terms of these arrangements typically include payment to the Company of one or more of the following: non-refundable, up-front license fees; development, regulatory and commercial milestone payments; and royalties on net sales of licensed products. The Company also has distribution licenses which are treated as combined performance obligations with the delivery of its products and are classified as product revenue, net. In determining the appropriate amount of revenue to be recognized as it fulfills its obligations under each of its agreements, the Company performs the five-step approach stated earlier. The Company uses judgment in determining the number of performance obligations in a license agreement by assessing whether the license is distinct or should be combined with another performance obligation, as well as the nature of the license. As part of the accounting for these arrangements, the Company must develop assumptions that require judgment to determine the stand-alone selling price for each performance obligation identified in the contract. The Company uses key assumptions to determine the stand-alone selling price, which may include market conditions, reimbursement rates for personnel costs, development timelines and probabilities of regulatory success. Licenses of intellectual property: If the license to the Company’s intellectual property is determined to be distinct from the other performance obligations identified in the arrangement, the Company recognizes revenues from non-refundable, up-front fees allocated to the license when the license is transferred to the customer and the customer is able to use and benefit from the license. For licenses that are bundled with other promises, the Company utilizes judgment to assess the nature of the combined performance obligation to determine whether the combined performance obligation is satisfied over time or at a point in time and, if over time, the appropriate method of measuring progress for purposes of recognizing revenue from non-refundable, up-front fees. The Company evaluates the measure of progress each reporting period and, if necessary, adjusts the measure of performance and related revenue recognition. Milestone Payments: At the inception of each arrangement that includes development milestone payments, the Company evaluates whether the milestones are considered probable of being reached and estimates the amount to be included in the transaction price using the most likely amount method. If it is probable that a significant revenue reversal would not occur, the associated milestone value is included in the transaction price. Milestone payments that are not within the control of the Company or the licensee, such as regulatory approvals, are not considered probable of being achieved until those approvals are received. The transaction price is then allocated to each performance obligation on a relative stand-alone selling price basis, for which the Company recognizes revenue as or when the performance obligations under the contract are satisfied. At the end of each subsequent reporting period, the Company re-evaluates the probability of achievement of such development milestones and any related constraint, and if necessary, adjusts its estimate of the overall transaction price. Any such adjustments are recorded on a cumulative catch-up basis, which would affect license and royalty revenues and earnings in the period of adjustment. At June 30, 2018 , the Company is constraining variable consideration related to milestone payments requiring regulatory approvals. Royalty Revenues: For arrangements that include sales-based royalties, including milestone payments based on the level of sales, and the license is deemed to be the predominant item to which the royalties relate, the Company recognizes revenue at the later of (i) when the related sales occur, or (ii) when the performance obligation to which some or all of the royalty has been allocated has been satisfied (or partially satisfied). Contract Costs The Company recognizes an asset for incremental costs of obtaining a contract with a customer if it expects to recover those costs. The Company’s sales incentive compensation plans qualify for capitalization since these plans are directly related to sales achieved during a period of time. However, the Company has elected the practical expedient under ASC 340-40-25-4 to expense the costs as they are incurred within selling and marketing expenses since the amortization period is less than one year. The Company recognized certain revenues as follows: (in thousands) Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 Amounts included in the contract liability at the beginning of the period $ 9 $ 17 Performance obligations satisfied (or partially satisfied) in previous periods $ — $ — The Company’s performance obligations are typically part of contracts that have an original expected duration of one year or less. As such, under the optional exemption provided by ASC 606-10-50-14, the Company is not disclosing the aggregate amount of the transaction price allocated to performance obligations that are unsatisfied (or partially satisfied) as of the end of the reporting period.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. In order to increase consistency and comparability of fair value measurements, financial instruments are categorized based on a hierarchy that prioritizes observable and unobservable inputs used to measure fair value into three broad levels, which are described below: • Level 1 — Inputs are unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access at the measurement date. • Level 2 — Inputs include quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (i.e., interest rates, yield curves, etc.) and inputs that are derived principally from or corroborated by observable market data by correlation or other means (market corroborated inputs). • Level 3 — Unobservable inputs that reflect a Company’s estimates about the assumptions that market participants would use in pricing the asset or liability. The Company develops these inputs based on the best information available, including its own data. The Company’s financial assets measured at fair value on a recurring basis consist of money market funds. The Company invests excess cash from its operating cash accounts in overnight investments and reflects these amounts in cash and cash equivalents in the condensed consolidated balance sheets at fair value using quoted prices in active markets for identical assets. The table below presents information about the Company’s assets and liabilities measured at fair value on a recurring basis: June 30, 2018 (in thousands) Total Fair Value Level 1 Level 2 Level 3 Money market $ 11,852 $ 11,852 $ — $ — Total $ 11,852 $ 11,852 $ — $ — December 31, 2017 (in thousands) Total Fair Value Level 1 Level 2 Level 3 Money market $ 8,700 $ 8,700 $ — $ — Total $ 8,700 $ 8,700 $ — $ — Nonrecurring Fair Value Measurements As of December 31, 2017 , the Company wrote down the value of land held for sale in the U.S. segment to its fair value, less estimated costs to sell, using level 3 inputs. See Note 7 , “ Property, Plant & Equipment, Net ” for further discussion regarding land held for sale.

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company provides for income taxes at the end of each interim period based on the estimated effective tax rate for the full year, adjusted for any discrete events which are recorded in the period they occur. The Company’s effective tax rate in fiscal 2018 differs from the U.S. federal statutory rate of 21% principally due to the impact of state taxes and the accrual of interest on uncertain tax positions offset by tax benefits arising from stock compensation deductions. The Company’s effective rate in fiscal 2017 was impacted by the valuation allowance the Company had on all its U.S. deferred tax assets until the fourth quarter of fiscal 2017. Cumulative adjustments to the tax provision are recorded in the interim period in which a change in the estimated annual effective tax rate is determined. The Company’s income tax expense is presented below: Three Months Ended Six Months Ended (in thousands) 2018 2017 2018 2017 Income tax expense $ 2,219 $ 569 $ 6,015 $ 1,354 On December 22, 2017, the United States enacted the Tax Cuts and Jobs Act of 2017 (the “Act”). The Act is significant and has wide-ranging effects. The Company is still studying all of the ramifications of the Act, but expects the primary material impact of the Act to be the remeasurement of the Company’s deferred tax assets, which was recorded in fiscal 2017 as a result of the reduction in U.S. corporate tax rates from 35% to 21%. As of December 31, 2017, the Company determined it had no accumulated unrepatriated foreign earnings, and therefore had recorded no liability for the repatriation transition tax. No changes have been made to these estimates. The Company is continuing to evaluate other changes resulting from the Act, including the impact of Global Intangible Low Tax Income, Base Erosion and Anti-abuse Tax, and revisions to Code Section 162(m). The Company has incorporated estimates of these items in its fiscal 2018 effective tax rate and expects to complete its accounting for these items within the prescribed measurement period. The Company regularly assesses its ability to realize its deferred tax assets. Assessing the realizability of deferred tax assets requires significant management judgment. In determining whether its deferred tax assets are more-likely-than-not realizable, the Company evaluated all available positive and negative evidence, and weighed the objective evidence and expected impact. The Company released its full valuation allowance recorded against its domestic net deferred tax assets during the year ended December 31, 2017 . The Company continues to record a valuation allowance against certain of its foreign net deferred tax assets. In connection with the Company’s acquisition of the medical imaging business from Bristol Myers Squibb (“BMS”) in 2008, the Company entered into a tax indemnification agreement with BMS related to certain tax obligations arising prior to the acquisition of the Company, for which the Company has the primary legal obligation. A long-term receivable is recorded to account for the expected value to the Company of future indemnification payments, net of actual U.S. federal tax benefits. The tax indemnification receivable is recognized within other long-term assets. The changes in the tax indemnification asset are recognized within other income in the condensed consolidated statement of operations. In accordance with the Company’s accounting policy, the change in the tax liability and penalties and interest associated with these obligations (net of any offsetting federal or state benefit) is recognized within income tax expense. Accordingly, as these reserves change, adjustments are included in income tax expense while the offsetting adjustment is included in other income. Assuming that the receivable from BMS continues to be considered recoverable by the Company, there will be minimal net effect on earnings and net cash outflows related to these liabilities.

Inventory

Inventory	6 Months Ended
	Jun. 30, 2018
Inventory Disclosure [Abstract]
Inventory	Inventory Inventory consisted of the following: (in thousands) June 30, December 31, Raw materials $ 10,631 $ 10,447 Work in process 7,984 5,509 Finished goods 12,859 10,124 Total inventory $ 31,474 $ 26,080 As of June 30, 2018 and December 31, 2017 , the Company had $0.5 million and $1.1 million , respectively, of inventory classified within other long-term assets, which represent raw materials not expected to be used by the Company during the next twelve months.

Property, Plant & Equipment, Ne

Property, Plant & Equipment, Net	6 Months Ended
	Jun. 30, 2018
Property, Plant and Equipment [Abstract]
Property, Plant & Equipment, Net	Property, Plant & Equipment, Net Property, plant & equipment, net, consisted of the following: (in thousands) June 30, December 31, Land $ 13,450 $ 13,450 Buildings 64,858 76,059 Machinery, equipment and fixtures 69,189 71,870 Computer software 19,060 20,271 Construction in progress 11,079 7,622 177,636 189,272 Less: accumulated depreciation and amortization (80,819 ) (96,273 ) Total property, plant & equipment, net $ 96,817 $ 92,999 Depreciation and amortization expense related to property, plant & equipment, net, was $2.5 million and $4.0 million for the three months ended June 30, 2018 and 2017 , respectively, and $5.1 million and $9.1 million for the six months ended June 30, 2018 and 2017 , respectively. Long-Lived Assets Held for Sale During the fourth quarter of 2017, the Company committed to a plan to sell a portion of its land in the U.S. segment. This event qualified for held for sale accounting and the land was written down to its fair value, less estimated costs to sell, which is classified in other current assets at December 31, 2017 . During the first quarter of 2018, the Company completed the sale of the land for proceeds of $1.0 million .

Asset Retirement Obligations

Asset Retirement Obligations	6 Months Ended
	Jun. 30, 2018
Asset Retirement Obligation Disclosure [Abstract]
Asset Retirement Obligations	Asset Retirement Obligations The Company considers its legal obligation to remediate its facilities upon a decommissioning of its radioactive-related operations as an asset retirement obligation. The Company has production facilities which manufacture and process radioactive materials at its North Billerica, Massachusetts and San Juan, Puerto Rico sites. The Company is required to provide the U.S. Nuclear Regulatory Commission and Massachusetts Department of Public Health financial assurance demonstrating the Company’s ability to fund the decommissioning of its North Billerica, Massachusetts production facility upon closure, although the Company does not intend to close the facility. The Company has provided this financial assurance in the form of a $28.2 million surety bond. The fair value of a liability for asset retirement obligations is recognized in the period in which the liability is incurred. As of June 30, 2018 , the liability is measured at the present value of the obligation expected to be incurred, of approximately $26.9 million , and is adjusted in subsequent periods as accretion expense is recorded. The corresponding asset retirement costs are capitalized as part of the carrying values of the related long-lived assets and depreciated over the assets’ useful lives. The following table provides a summary of the changes in the Company’s asset retirement obligations: (in thousands) Amount Balance at December 31, 2017 $ 10,412 Accretion expense 580 Balance at June 30, 2018 $ 10,992

Financing Arrangements

Financing Arrangements	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
Financing Arrangements	Financing Arrangements On March 30, 2017, the Company refinanced its previous $365 million seven -year term loan agreement (the facility thereunder, the “2015 Term Facility”) with a new five -year $275 million term loan facility (the “2017 Term Facility” and the loans thereunder, the “Term Loans”). In addition, the Company replaced its previous $50 million five -year asset based loan facility (the “ABL Facility”) with a new $75 million five -year revolving credit facility (the “2017 Revolving Facility” and, together with the 2017 Term Facility, the “2017 Facility”). The terms of the 2017 Facility are set forth in that certain Amended and Restated Credit Agreement, dated as of March 30, 2017 (the “Credit Agreement”), by and among Holdings, the Company, the lenders from time to time party thereto and JPMorgan Chase Bank, N.A., as administrative agent and collateral agent. The 2017 Term Facility was issued net of a $0.7 million discount. The Company has the right to request an increase to the 2017 Term Facility or request the establishment of one or more new incremental term loan facilities, in an aggregate principal amount of up to $75.0 million , plus additional amounts, in certain circumstances. The net proceeds of the 2017 Term Facility, together with approximately $15.3 million of cash on hand, were used to refinance in full the aggregate remaining principal amount of the loans outstanding under the 2015 Term Facility and pay related interest, transaction fees and expenses. No amounts were outstanding under the ABL Facility at that time. The Company accounted for the refinancing as both a debt extinguishment and debt modification by evaluating the refinancing on a creditor by creditor basis. The Company recorded a loss on extinguishment of debt of $2.2 million related to the write-off of unamortized debt issuance costs and incurred general and administrative expenses of $1.7 million related to third-party costs associated with the modified debt. In addition, the Company incurred and capitalized $1.6 million of new debt issuance costs related to the refinancing. On November 29, 2017, the Company entered into Amendment No. 1 (the “Repricing Amendment”) to the 2017 Facility to, among other things, (i) reduce the applicable interest rate margins with respect to the LIBOR and Base Rate Term Loans (as defined in the Credit Agreement) and (ii) reduce the applicable interest rate margins with respect to the LIBOR and Base Rate Revolving Loans (as defined in the Credit Agreement). The Company accounted for the Repricing Amendment as both a debt extinguishment and debt modification by evaluating the refinancing on a creditor by creditor basis. 2017 Term Facility The Term Loans under the 2017 Term Facility bear interest, with pricing based from time to time at the Company’s election at (i) LIBOR plus a spread of 3.75% or (ii) the Base Rate (as defined in the Credit Agreement) plus a spread of 2.75% . Interest is payable (i) with respect to LIBOR Term Loans, at the end of each Interest Period (as defined in the Credit Agreement) and (ii) with respect to Base Rate Term Loans, at the end of each quarter. At June 30, 2018 , the Company’s interest rate under the 2017 Term Facility was 5.8% . The Company is permitted to voluntarily prepay the Term Loans, in whole or in part. The 2017 Term Facility requires the Company to make mandatory prepayments of the outstanding Term Loans in certain circumstances. The 2017 Term Facility amortizes at 1.00% per year until its June 30, 2022 maturity date. The Company’s maturities of principal obligations under the 2017 Term Facility are as follows as of June 30, 2018 : (in thousands) Amount Remainder of 2018 $ 1,375 2019 2,750 2020 2,750 2021 2,750 2022 261,937 Total principal outstanding 271,562 Unamortized debt discount (1,810 ) Unamortized debt issuance costs (2,451 ) Total 267,301 Less: current portion (2,750 ) Total long-term debt $ 264,551 2017 Revolving Facility Under the terms of the 2017 Revolving Facility, the lenders thereunder agreed to extend credit to the Company from time to time until March 30, 2022 (the “Revolving Termination Date”) consisting of revolving loans (the “Revolving Loans” and, together with the Term Loans, the “Loans”) in an aggregate principal amount not to exceed $75 million (the “Revolving Commitment”) at any time outstanding. The 2017 Revolving Facility includes a $20 million sub-facility for the issuance of letters of credit (the “Letters of Credit”). The Letters of Credit and the borrowings under the 2017 Revolving Facility are expected to be used for working capital and other general corporate purposes. The Revolving Loans under the 2017 Revolving Facility bear interest, with pricing based from time to time at the Company’s election at (i) LIBOR plus a spread of 3.00% or (ii) the Base Rate (as defined in the Credit Agreement) plus a spread of 2.00% . The 2017 Revolving Facility also includes an unused line fee, which is set at 0.38% while the Company’s secured leverage ratio (as defined in the Credit Agreement) is greater than 3.00 to 1.00 and 0.25% when the Company’s secured leverage ratio is less than or equal to 3.00 to 1.00. The Company is permitted to voluntarily prepay the Revolving Loans, in whole or in part, or reduce or terminate the Revolving Commitment, in each case, without premium or penalty. On any business day on which the total amount of outstanding Revolving Loans and Letters of Credit exceeds the total Revolving Commitment, the Company must prepay the Revolving Loans in an amount equal to such excess. As of June 30, 2018 , there were no outstanding borrowings under the 2017 Revolving Facility. 2017 Facility Covenants The 2017 Facility contains a number of affirmative, negative, reporting and financial covenants, in each case subject to certain exceptions and materiality thresholds. The 2017 Facility requires the Company to be in quarterly compliance, measured on a trailing four quarter basis, with a financial covenant. The maximum consolidated leverage ratio permitted by the financial covenant is displayed in the table below: Period Consolidated Leverage Ratio Q3 2018 through Q1 2019 4.75 to 1.00 Thereafter 4.50 to 1.00 The 2017 Facility contains usual and customary restrictions on the ability of the Company and its subsidiaries to: (i) incur additional indebtedness (ii) create liens; (iii) consolidate, merge, sell or otherwise dispose of all or substantially all of its assets; (iv) sell certain assets; (v) pay dividends on, repurchase or make distributions in respect of capital stock or make other restricted payments; (vi) make certain investments; (vii) repay subordinated indebtedness prior to stated maturity; and (viii) enter into certain transactions with its affiliates. Upon an event of default, the administrative agent under the Credit Agreement will have the right to declare the Loans and other obligations outstanding immediately due and payable and all commitments immediately terminated or reduced. The 2017 Facility is guaranteed by Holdings and Lantheus MI Real Estate, LLC (“LMI-RE”), and obligations under the 2017 Facility are generally secured by first priority liens over substantially all of the assets of each of LMI, Holdings and LMI-RE (subject to customary exclusions set forth in the transaction documents) owned as of March 30, 2017 or thereafter acquired.

Stock-Based Compensation

Stock-Based Compensation	6 Months Ended
	Jun. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	Stock-Based Compensation The following table presents stock-based compensation expense recognized in the Company’s accompanying condensed consolidated statements of operations: Three Months Ended Six Months Ended (in thousands) 2018 2017 2018 2017 Cost of goods sold $ 261 $ 177 $ 490 $ 316 Sales and marketing 397 167 699 291 General and administrative 1,221 675 2,201 1,226 Research and development 337 143 622 274 Total stock-based compensation expense $ 2,216 $ 1,162 $ 4,012 $ 2,107 During the first quarter of 2018, the Company granted approximately 207,000 total stockholder return restricted stock awards (“TSR Awards”) that include a three -year market condition where the performance measurement period is three years. Vesting of the TSR Awards is based on the Company’s level of attainment of specified TSR targets relative to a specified index of companies for the respective three -year period and is also subject to the continued employment of the grantees. The number of shares that can be earned over the performance period ranges from 0% to 200% of the initial award. The fair value of these awards are based on a Monte Carlo simulation valuation model.

Net Income Per Common Share

Net Income Per Common Share	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Net Income Per Common Share	Net Income Per Common Share A summary of net income per common share is presented below: Three Months Ended Six Months Ended (in thousands, except per share amounts) 2018 2017 2018 2017 Net income $ 9,745 $ 13,595 $ 17,956 $ 17,733 Basic weighted-average common shares outstanding 38,233 37,235 38,060 37,063 Effect of dilutive stock options 37 324 90 347 Effect of dilutive restricted stock 1,128 1,341 1,318 1,316 Diluted weighted-average common shares outstanding 39,398 38,900 39,468 38,726 Basic income per common share $ 0.25 $ 0.37 $ 0.47 $ 0.48 Diluted income per common share $ 0.25 $ 0.35 $ 0.45 $ 0.46 Antidilutive securities excluded from diluted net income per common share 327 339 300 379

Other Income

Other Income	6 Months Ended
	Jun. 30, 2018
Other Income and Expenses [Abstract]
Other Income	Other Income Other income consisted of the following: Three Months Ended Six Months Ended (in thousands) 2018 2017 2018 2017 Foreign currency (losses) gains $ (359 ) $ 55 $ (287 ) $ 140 Tax indemnification income 687 490 1,528 980 Other 8 7 15 9 Total other income $ 336 $ 552 $ 1,256 $ 1,129

Legal Proceedings and Contingen

Legal Proceedings and Contingencies	6 Months Ended
	Jun. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Legal Proceedings and Contingencies	Legal Proceedings and Contingencies From time to time, the Company is a party to various legal proceedings arising in the ordinary course of business. In addition, the Company has in the past been, and may in the future be, subject to investigations by governmental and regulatory authorities, which expose it to greater risks associated with litigation, regulatory or other proceedings, as a result of which the Company could be required to pay significant fines or penalties. The costs and outcome of litigation, regulatory or other proceedings cannot be predicted with certainty, and some lawsuits, claims, actions or proceedings may be disposed of unfavorably to the Company. In addition, intellectual property disputes often have a risk of injunctive relief which, if imposed against the Company, could materially and adversely affect its financial condition or results of operations. As of June 30, 2018 , the Company has no material ongoing litigation in which the Company was a party or any material ongoing regulatory or other proceedings and had no knowledge of any investigations by government or regulatory authorities in which the Company is a target that could have a material adverse effect on its current business. The Company is currently in arbitration with Pharmalucence in connection with a Manufacturing and Supply Agreement, dated November 12, 2013, under which Pharmalucence agreed to manufacture and supply DEFINITY for the Company. The commercial arrangement contemplated by that agreement was repeatedly delayed and ultimately never successfully realized. After extended settlement discussions between Sun Pharma, the ultimate parent of Pharmalucence, and the Company, which did not lead to a mutually acceptable outcome, on November 10, 2017, the Company filed an arbitration demand (and later an amended arbitration demand) with the American Arbitration Association against Pharmalucence, alleging breach of contract, breach of the covenant of good faith and fair dealing, tortious misrepresentation and violation of the Massachusetts Consumer Protection Law, also known as Chapter 93A. The Company is seeking monetary damages but cannot predict the outcome of this dispute resolution proceeding and whether the Company will be able to obtain any financial recovery as a result of this proceeding.

Segment Information

Segment Information	6 Months Ended
	Jun. 30, 2018
Segment Reporting [Abstract]
Segment Information	Segment Information The Company reports two operating segments, U.S. and International, based on geographic customer base. The results of these operating segments are regularly reviewed by the Company’s chief operating decision maker, the President and Chief Executive Officer. The Company’s segments derive revenues through the manufacture, marketing, selling and distribution of medical imaging products, focused primarily on cardiovascular diagnostic imaging. All goodwill has been allocated to the U.S. operating segment. The Company does not identify or allocate assets to its segments. Selected information regarding the Company’s segments is provided as follows: Three Months Ended Six Months Ended (in thousands) 2018 2017 2018 2017 Revenues from external customers U.S. $ 74,086 $ 78,100 $ 145,574 $ 149,127 International 11,487 10,737 22,629 21,069 Total revenues from external customers $ 85,573 $ 88,837 $ 168,203 $ 170,196 Operating income U.S. $ 14,292 $ 16,895 $ 28,448 $ 28,063 International 1,634 1,002 2,615 1,761 Total operating income 15,926 17,897 31,063 29,824 Interest expense 4,298 4,285 8,348 9,705 Loss on extinguishment of debt — — — 2,161 Other income (336 ) (552 ) (1,256 ) (1,129 ) Income before income taxes $ 11,964 $ 14,164 $ 23,971 $ 19,087

Basis of Presentation (Policies

Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2018
Accounting Policies [Abstract]
Basis of Presentation	The accompanying unaudited condensed consolidated financial statements include the accounts of Lantheus Holdings, Inc. and its direct and indirect wholly-owned subsidiaries and have been prepared in accordance with generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, these condensed consolidated financial statements do not include all of the information and notes required by generally accepted accounting principles in the United States of America (“U.S. GAAP”) for complete financial statements. In the opinion of management, all adjustments (consisting of normal and recurring adjustments) considered necessary for a fair statement have been included. The results of operations for the three and six months ended June 30, 2018 are not necessarily indicative of the results that may be expected for the year ended December 31, 2018 or any future period. The condensed consolidated balance sheet at December 31, 2017 has been derived from the audited consolidated financial statements at that date but does not include all of the information and notes required by U.S. GAAP for complete financial statements. These condensed consolidated financial statements and accompanying notes should be read in conjunction with the consolidated financial statements and notes thereto included in Item 8 of the Company’s most recent Annual Report on Form 10-K for the year ended December 31, 2017 filed with the Securities Exchange Commission (“SEC”) on February 26, 2018. Certain immaterial amounts in the prior period condensed consolidated statement of cash flows have been reclassified to conform to the current period financial statement presentation.
Recent Accounting Pronouncements	Recent Accounting Pronouncements The following table provides a description of recent accounting pronouncements that may have a material effect on the Company’s condensed consolidated financial statements: Standard Description Effective Date for Company Effect on the Condensed Consolidated Financial Statements Recently Issued Accounting Standards Not Yet Adopted ASU 2016-02, Leases (Topic 842) This ASU supersedes existing guidance on accounting for leases in “Leases (Topic 840)” and generally requires all leases to be recognized on the balance sheet. The provisions of ASU 2016-02 are effective for annual reporting periods beginning after December 15, 2018; early adoption is permitted. The provisions of this ASU are to be applied using a modified retrospective approach at the earliest period presented or at the period of adoption. January 1, 2019 The Company is currently in the process of performing an assessment on the impact of the standard, including optional practical expedients and transition methods that the Company may elect upon adoption and is progressing with an implementation plan. The implementation plan includes identifying the Company’s lease population, updating the Company’s lease database and identifying changes to processes and controls. The Company is currently assessing the impact that this standard will have on its consolidated financial statements. Standard Description Effective Date for Company Effect on the Condensed Consolidated Financial Statements Accounting Standards Adopted During the Six Months Ended June 30, 2018 ASU 2017-09, Compensation—Stock Compensation (Topic 718): Scope of Modification Accounting This ASU clarifies when to account for a change to the terms or conditions of a share–based payment award as a modification. Under the new guidance, modification accounting is required only if the fair value, vesting conditions or classification of the award (as equity or liability) changes as a result of the change in terms or conditions. January 1, 2018 The adoption of this standard did not have a material impact on the Company’s condensed consolidated financial statements. ASU 2014-09, Revenue from Contracts with Customers (Topic 606) and related amendments This ASU and related amendments affect any entity that either enters into contracts with customers to transfer goods or services or enters into contracts for the transfer of nonfinancial assets, unless those contracts are within the scope of other standards. The guidance in this ASU supersedes the revenue recognition requirements in Topic 605, Revenue Recognition and most industry-specific guidance. The core principle of the guidance is that an entity should recognize revenue upon the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. January 1, 2018 See Note 3, "Revenue from Contracts with Customers" for the required disclosures related to the impact of adopting this standard. The adoption of this standard did not have a material impact on the Company’s condensed consolidated balance sheets and statements of operations.

Summary of Significant Accoun22

Summary of Significant Accounting Policies (Tables)	6 Months Ended
	Jun. 30, 2018
Accounting Policies [Abstract]
Recent Accounting Pronouncements	The following table provides a description of recent accounting pronouncements that may have a material effect on the Company’s condensed consolidated financial statements: Standard Description Effective Date for Company Effect on the Condensed Consolidated Financial Statements Recently Issued Accounting Standards Not Yet Adopted ASU 2016-02, Leases (Topic 842) This ASU supersedes existing guidance on accounting for leases in “Leases (Topic 840)” and generally requires all leases to be recognized on the balance sheet. The provisions of ASU 2016-02 are effective for annual reporting periods beginning after December 15, 2018; early adoption is permitted. The provisions of this ASU are to be applied using a modified retrospective approach at the earliest period presented or at the period of adoption. January 1, 2019 The Company is currently in the process of performing an assessment on the impact of the standard, including optional practical expedients and transition methods that the Company may elect upon adoption and is progressing with an implementation plan. The implementation plan includes identifying the Company’s lease population, updating the Company’s lease database and identifying changes to processes and controls. The Company is currently assessing the impact that this standard will have on its consolidated financial statements. Standard Description Effective Date for Company Effect on the Condensed Consolidated Financial Statements Accounting Standards Adopted During the Six Months Ended June 30, 2018 ASU 2017-09, Compensation—Stock Compensation (Topic 718): Scope of Modification Accounting This ASU clarifies when to account for a change to the terms or conditions of a share–based payment award as a modification. Under the new guidance, modification accounting is required only if the fair value, vesting conditions or classification of the award (as equity or liability) changes as a result of the change in terms or conditions. January 1, 2018 The adoption of this standard did not have a material impact on the Company’s condensed consolidated financial statements. ASU 2014-09, Revenue from Contracts with Customers (Topic 606) and related amendments This ASU and related amendments affect any entity that either enters into contracts with customers to transfer goods or services or enters into contracts for the transfer of nonfinancial assets, unless those contracts are within the scope of other standards. The guidance in this ASU supersedes the revenue recognition requirements in Topic 605, Revenue Recognition and most industry-specific guidance. The core principle of the guidance is that an entity should recognize revenue upon the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. January 1, 2018 See Note 3, "Revenue from Contracts with Customers" for the required disclosures related to the impact of adopting this standard. The adoption of this standard did not have a material impact on the Company’s condensed consolidated balance sheets and statements of operations.

Revenue from Contracts with C23

Revenue from Contracts with Customers (Tables)	6 Months Ended
	Jun. 30, 2018
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following table summarizes revenue by revenue source and reportable segment as follows: Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 Major Products/Service Lines (in thousands) U.S. International Total U.S. International Total Product revenue, net (1) $ 74,086 $ 10,918 $ 85,004 $ 145,574 $ 21,498 $ 167,072 License and royalty revenues — 569 569 — 1,131 1,131 Total revenues $ 74,086 $ 11,487 $ 85,573 $ 145,574 $ 22,629 $ 168,203 ________________________________ (1) The Company’s principal products include DEFINITY, TechneLite and Xenon and are categorized within product revenue, net. The Company applies the same revenue recognition policies and judgments for all of its principal products.
Contract Liabilities	The following table summarizes activity for reserves relating to rebate and allowances (including group purchasing organization administrative fees and returns) for the six months ended June 30, 2018 : (in thousands) Rebates and Allowances Balance, January 1, 2018 $ 2,860 Provision related to current period revenues 6,550 Adjustments relating to prior period revenues (260 ) Payments or credits made during the period (5,245 ) Balance, June 30, 2018 $ 3,905 The Company recognized certain revenues as follows: (in thousands) Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 Amounts included in the contract liability at the beginning of the period $ 9 $ 17 Performance obligations satisfied (or partially satisfied) in previous periods $ — $ —

Fair Value of Financial Instr24

Fair Value of Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis	The table below presents information about the Company’s assets and liabilities measured at fair value on a recurring basis: June 30, 2018 (in thousands) Total Fair Value Level 1 Level 2 Level 3 Money market $ 11,852 $ 11,852 $ — $ — Total $ 11,852 $ 11,852 $ — $ — December 31, 2017 (in thousands) Total Fair Value Level 1 Level 2 Level 3 Money market $ 8,700 $ 8,700 $ — $ — Total $ 8,700 $ 8,700 $ — $ —

Income Taxes Income Taxes (Tabl

Income Taxes Income Taxes (Tables)	6 Months Ended
	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Schedule of Income Tax Expense	The Company’s income tax expense is presented below: Three Months Ended Six Months Ended (in thousands) 2018 2017 2018 2017 Income tax expense $ 2,219 $ 569 $ 6,015 $ 1,354

Inventory (Tables)

Inventory (Tables)	6 Months Ended
	Jun. 30, 2018
Inventory Disclosure [Abstract]
Schedule of Inventory	Inventory consisted of the following: (in thousands) June 30, December 31, Raw materials $ 10,631 $ 10,447 Work in process 7,984 5,509 Finished goods 12,859 10,124 Total inventory $ 31,474 $ 26,080

Property, Plant & Equipment, 27

Property, Plant & Equipment, Net (Tables)	6 Months Ended
	Jun. 30, 2018
Property, Plant and Equipment [Abstract]
Schedule of Property, Plant & Equipment, Net	Property, plant & equipment, net, consisted of the following: (in thousands) June 30, December 31, Land $ 13,450 $ 13,450 Buildings 64,858 76,059 Machinery, equipment and fixtures 69,189 71,870 Computer software 19,060 20,271 Construction in progress 11,079 7,622 177,636 189,272 Less: accumulated depreciation and amortization (80,819 ) (96,273 ) Total property, plant & equipment, net $ 96,817 $ 92,999

Asset Retirement Obligations (T

Asset Retirement Obligations (Tables)	6 Months Ended
	Jun. 30, 2018
Asset Retirement Obligation Disclosure [Abstract]
Summary of Changes in Asset Retirement Obligations	The following table provides a summary of the changes in the Company’s asset retirement obligations: (in thousands) Amount Balance at December 31, 2017 $ 10,412 Accretion expense 580 Balance at June 30, 2018 $ 10,992

Financing Arrangements (Tables)

Financing Arrangements (Tables)	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
Schedule of Maturities of Principal Obligations Under New Term Facility	The Company’s maturities of principal obligations under the 2017 Term Facility are as follows as of June 30, 2018 : (in thousands) Amount Remainder of 2018 $ 1,375 2019 2,750 2020 2,750 2021 2,750 2022 261,937 Total principal outstanding 271,562 Unamortized debt discount (1,810 ) Unamortized debt issuance costs (2,451 ) Total 267,301 Less: current portion (2,750 ) Total long-term debt $ 264,551
Schedule of Term Facility Financial Covenant	The maximum consolidated leverage ratio permitted by the financial covenant is displayed in the table below: Period Consolidated Leverage Ratio Q3 2018 through Q1 2019 4.75 to 1.00 Thereafter 4.50 to 1.00

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	6 Months Ended
	Jun. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Stock-Based Compensation Expense Recognized	The following table presents stock-based compensation expense recognized in the Company’s accompanying condensed consolidated statements of operations: Three Months Ended Six Months Ended (in thousands) 2018 2017 2018 2017 Cost of goods sold $ 261 $ 177 $ 490 $ 316 Sales and marketing 397 167 699 291 General and administrative 1,221 675 2,201 1,226 Research and development 337 143 622 274 Total stock-based compensation expense $ 2,216 $ 1,162 $ 4,012 $ 2,107

Net Income Per Common Share (Ta

Net Income Per Common Share (Tables)	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Summary of Net Income Per Common Share	A summary of net income per common share is presented below: Three Months Ended Six Months Ended (in thousands, except per share amounts) 2018 2017 2018 2017 Net income $ 9,745 $ 13,595 $ 17,956 $ 17,733 Basic weighted-average common shares outstanding 38,233 37,235 38,060 37,063 Effect of dilutive stock options 37 324 90 347 Effect of dilutive restricted stock 1,128 1,341 1,318 1,316 Diluted weighted-average common shares outstanding 39,398 38,900 39,468 38,726 Basic income per common share $ 0.25 $ 0.37 $ 0.47 $ 0.48 Diluted income per common share $ 0.25 $ 0.35 $ 0.45 $ 0.46 Antidilutive securities excluded from diluted net income per common share 327 339 300 379

Other Income (Tables)

Other Income (Tables)	6 Months Ended
	Jun. 30, 2018
Other Income and Expenses [Abstract]
Schedule of Other Income	Other income consisted of the following: Three Months Ended Six Months Ended (in thousands) 2018 2017 2018 2017 Foreign currency (losses) gains $ (359 ) $ 55 $ (287 ) $ 140 Tax indemnification income 687 490 1,528 980 Other 8 7 15 9 Total other income $ 336 $ 552 $ 1,256 $ 1,129

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2018
Segment Reporting [Abstract]
Schedule of Selected Information for Each Operating Segment	Selected information regarding the Company’s segments is provided as follows: Three Months Ended Six Months Ended (in thousands) 2018 2017 2018 2017 Revenues from external customers U.S. $ 74,086 $ 78,100 $ 145,574 $ 149,127 International 11,487 10,737 22,629 21,069 Total revenues from external customers $ 85,573 $ 88,837 $ 168,203 $ 170,196 Operating income U.S. $ 14,292 $ 16,895 $ 28,448 $ 28,063 International 1,634 1,002 2,615 1,761 Total operating income 15,926 17,897 31,063 29,824 Interest expense 4,298 4,285 8,348 9,705 Loss on extinguishment of debt — — — 2,161 Other income (336 ) (552 ) (1,256 ) (1,129 ) Income before income taxes $ 11,964 $ 14,164 $ 23,971 $ 19,087

Revenue from Contracts with C34

Revenue from Contracts with Customers - Disaggregation of Revenue (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Disaggregation of Revenue [Line Items]
Revenues	$ 85,573,000	$ 88,837,000	$ 168,203,000	$ 170,196,000
Product revenue, net
Disaggregation of Revenue [Line Items]
Revenues	85,004,000		167,072,000
License and royalty revenues
Disaggregation of Revenue [Line Items]
Revenues	569,000		1,131,000
U.S.
Disaggregation of Revenue [Line Items]
Revenues	74,086,000	78,100,000	145,574,000	149,127,000
U.S. | Product revenue, net
Disaggregation of Revenue [Line Items]
Revenues	74,086,000		145,574,000
U.S. | License and royalty revenues
Disaggregation of Revenue [Line Items]
Revenues	0		0
International
Disaggregation of Revenue [Line Items]
Revenues	11,487,000	$ 10,737,000	22,629,000	$ 21,069,000
International | Product revenue, net
Disaggregation of Revenue [Line Items]
Revenues	10,918,000		21,498,000
International | License and royalty revenues
Disaggregation of Revenue [Line Items]
Revenues	$ 569,000		$ 1,131,000

Revenue from Contracts with C35

Revenue from Contracts with Customers - Reserves Related to Rebate and Allowances (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2018USD ($)
Allowance for Doubtful Accounts Receivable [Roll Forward]
Beginning balance	$ 2,860
Provision related to current period revenues	6,550
Adjustments relating to prior period revenues	(260)
Payments or credits made during the period	(5,245)
Ending balance	$ 3,905

Revenue from Contracts with C36

Revenue from Contracts with Customers - Contract Costs (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2018
Revenue from Contract with Customer [Abstract]
Amounts included in the contract liability at the beginning of the period	$ 9	$ 17
Performance obligations satisfied (or partially satisfied) in previous periods	$ 0	$ 0

Fair Value of Financial Instr37

Fair Value of Financial Instruments - Schedule of the Information about the Company's Assets and Liabilities Measured at Fair Value on a Recurring Basis (Detail) - Recurring basis - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total	$ 11,852	$ 8,700
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total	11,852	8,700
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total	0	0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total	0	0
Money market
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market	11,852	8,700
Money market | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market	11,852	8,700
Money market | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market	0	0
Money market | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market	$ 0	$ 0

Income Taxes (Detail)

Income Taxes (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Tax Disclosure [Abstract]
Income tax expense	$ 2,219	$ 569	$ 6,015	$ 1,354

Inventory - Schedule of Invento

Inventory - Schedule of Inventory (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Inventory Disclosure [Abstract]
Raw materials	$ 10,631	$ 10,447
Work in process	7,984	5,509
Finished goods	12,859	10,124
Total inventory	$ 31,474	$ 26,080

Inventory - Additional Informat

Inventory - Additional Information (Detail) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Other long-term assets
Inventory [Line Items]
Raw materials	$ 0.5	$ 1.1

Property, Plant & Equipment, 41

Property, Plant & Equipment, Net - Schedule of Property, Plant & Equipment, Net (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Property, Plant & Equipment [Line Items]
Property, plant & equipment, gross	$ 177,636	$ 189,272
Less: accumulated depreciation and amortization	(80,819)	(96,273)
Total property, plant & equipment, net	96,817	92,999
Land
Property, Plant & Equipment [Line Items]
Property, plant & equipment, gross	13,450	13,450
Buildings
Property, Plant & Equipment [Line Items]
Property, plant & equipment, gross	64,858	76,059
Machinery, equipment and fixtures
Property, Plant & Equipment [Line Items]
Property, plant & equipment, gross	69,189	71,870
Construction in progress
Property, Plant & Equipment [Line Items]
Property, plant & equipment, gross	11,079	7,622
Computer software
Property, Plant & Equipment [Line Items]
Property, plant & equipment, gross	$ 19,060	$ 20,271

Property, Plant & Equipment, 42

Property, Plant & Equipment, Net - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Property, Plant & Equipment [Line Items]
Proceeds from sales of assets		$ 1,000		$ 1,000	$ 1,234
Property, plant and equipment
Property, Plant & Equipment [Line Items]
Depreciation and amortization	$ 2,500		$ 4,000	$ 5,100	$ 9,100

Asset Retirement Obligations -

Asset Retirement Obligations - Additional Information (Detail) $ in Millions	6 Months Ended
	Jun. 30, 2018USD ($)
Asset Retirement Obligation Disclosure [Abstract]
Financial assurance in form of surety bond	$ 28.2
Asset retirement obligation liabilities expected, present value	$ 26.9

Asset Retirement Obligations 44

Asset Retirement Obligations - Summary of Changes in Company's Asset Retirement Obligations (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2018USD ($)
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Asset retirement obligations, beginning balance	$ 10,412
Accretion expense	580
Asset retirement obligations, ending balance	$ 10,992

Financing Arrangements - Additi

Financing Arrangements - Additional Information (Detail) - USD ($)	Mar. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Debt Instrument [Line Items]
Loss on extinguishment of debt	$ 2,200,000	$ 0	$ 2,161,000
Third-party costs associated with modified debt	1,700,000
Capitalized debt issuance costs	1,600,000
Revolving line of credit		0		$ 0
2015 Term Facility
Debt Instrument [Line Items]
Debt instrument, face amount	$ 365,000,000
Debt instrument, term (in years)	7 years
Cash paid during the execution of refinancing	$ 15,300,000
2017 Term Facility
Debt Instrument [Line Items]
Debt instrument, face amount	$ 275,000,000
Debt instrument, term (in years)	5 years
Debt instrument, discount amount	$ 700,000
Increase in aggregate principle amount	75,000,000
Amount outstanding		$ 271,562,000
Interest rate at end of period		5.80%
2017 Term Facility | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate (in percentage)		3.75%
2017 Term Facility | Reference Rate
Debt Instrument [Line Items]
Basis spread on variable rate (in percentage)		2.75%
Asset Based Loan Facility
Debt Instrument [Line Items]
Debt instrument, face amount	$ 50,000,000
Debt instrument, term (in years)	5 years
2017 Revolving Facility
Debt Instrument [Line Items]
Debt instrument, face amount	$ 75,000,000	$ 75,000,000
Debt instrument, term (in years)	5 years
2017 Revolving Facility | Leverage Ratio Range One
Debt Instrument [Line Items]
Unused line of credit fee (in percentage)		0.38%
Debt instrument covenant leverage ratio		300.00%
2017 Revolving Facility | Leverage Ratio Range Two
Debt Instrument [Line Items]
Unused line of credit fee (in percentage)		0.25%
2017 Revolving Facility | Letter of Credit
Debt Instrument [Line Items]
Debt instrument, face amount		$ 20,000,000
2017 Revolving Facility | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate (in percentage)		3.00%
2017 Revolving Facility | Reference Rate
Debt Instrument [Line Items]
Basis spread on variable rate (in percentage)		2.00%

Financing Arrangements - Schedu

Financing Arrangements - Schedule of Maturities of Principal Obligations Under New Term Facility (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Less: current portion	$ (2,750)	$ (2,750)
Total long-term debt	264,551	$ 265,393
2017 Term Facility
Debt Instrument [Line Items]
Remainder of 2018	1,375
2,019	2,750
2,020	2,750
2,021	2,750
2,022	261,937
Total principal outstanding	271,562
Unamortized debt discount	(1,810)
Unamortized debt issuance costs	(2,451)
Total	267,301
Less: current portion	(2,750)
Total long-term debt	$ 264,551

Financing Arrangements - Sche47

Financing Arrangements - Schedule of Term Facility Financial Covenant (Detail) - 2017 Facility	6 Months Ended
	Jun. 30, 2018
Q3 2018 through Q1 2019
Debt Instrument [Line Items]
Consolidated Leverage Ratio	475.00%
Thereafter
Debt Instrument [Line Items]
Consolidated Leverage Ratio	450.00%

Stock-Based Compensation - Sche

Stock-Based Compensation - Schedule of Stock-Based Compensation Expense Recognized (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 2,216	$ 1,162	$ 4,012	$ 2,107
Cost of goods sold
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	261	177	490	316
Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	397	167	699	291
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	1,221	675	2,201	1,226
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 337	$ 143	$ 622	$ 274

Stock-based Compensation - Addi

Stock-based Compensation - Additional Information (Details) shares in Thousands	6 Months Ended
	Jun. 30, 2018shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Market condition period	3 years
Performance measurement period	3 years
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance period range (in percent)	0.00%
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance period range (in percent)	200.00%
Restricted Stock Awards, Including Three Year Market Condition
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards granted (in shares)	207

Net Income Per Common Share - S

Net Income Per Common Share - Summary of Net Income Per Common Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Earnings Per Share [Line Items]
Net income	$ 9,745	$ 13,595	$ 17,956	$ 17,733
Basic weighted-average common shares outstanding (in shares)	38,233	37,235	38,060	37,063
Effect of dilutive stock options (in shares)	37	324	90	347
Effect of dilutive restricted stock (in shares)	1,128	1,341	1,318	1,316
Diluted weighted-average common shares outstanding (in shares)	39,398	38,900	39,468	38,726
Basic income per common share (in dollars per share)	$ 0.25	$ 0.37	$ 0.47	$ 0.48
Diluted income per common share (in dollars per share)	$ 0.25	$ 0.35	$ 0.45	$ 0.46
Stock options | Nonvested restricted stock
Earnings Per Share [Line Items]
Antidilutive securities excluded from diluted income per common share (in shares)	327	339	300	379

Other Income - Schedule of Othe

Other Income - Schedule of Other Income (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Other Income and Expenses [Abstract]
Foreign currency (losses) gains	$ (359)	$ 55	$ (287)	$ 140
Tax indemnification income	687	490	1,528	980
Other	8	7	15	9
Other income	$ 336	$ 552	$ 1,256	$ 1,129

Segment Information - Additiona

Segment Information - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2018segment
Segment Reporting [Abstract]
Number of operating segments	2

Segment Information - Schedule

Segment Information - Schedule of Selected Information for Each Business Segment (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segment Reporting Information [Line Items]
Revenues from external customers	$ 85,573,000	$ 88,837,000	$ 168,203,000	$ 170,196,000
Operating income
Operating income	15,926,000	17,897,000	31,063,000	29,824,000
Interest expense	4,298,000	4,285,000	8,348,000	9,705,000
Loss on extinguishment of debt	0	0	0	2,161,000
Other income	(336,000)	(552,000)	(1,256,000)	(1,129,000)
Income before income taxes	11,964,000	14,164,000	23,971,000	19,087,000
U.S.
Segment Reporting Information [Line Items]
Revenues from external customers	74,086,000	78,100,000	145,574,000	149,127,000
Operating income
Operating income	14,292,000	16,895,000	28,448,000	28,063,000
International
Segment Reporting Information [Line Items]
Revenues from external customers	11,487,000	10,737,000	22,629,000	21,069,000
Operating income
Operating income	$ 1,634,000	$ 1,002,000	$ 2,615,000	$ 1,761,000