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SIGNIFICANT ACCOUNTING POLICIES (Policies) | 6 Months Ended
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Jun. 30, 2020
Accounting Policies [Abstract] |
REVENUES | REVENUES - Our revenues generally relate to net patient fees received from various payors and patients themselves under contracts in which our performance obligations are to provide diagnostic services to the patients. Revenues are recorded during the period when our obligations to provide diagnostic services are satisfied. Our performance obligations for diagnostic services are generally satisfied over a period of less than one day. The contractual relationships with patients, in most cases, also involve a third-party payor (Medicare, Medicaid, managed care health plans and commercial insurance companies, including plans offered through the health insurance exchanges) and the transaction prices for the services provided are dependent upon the terms provided by (Medicare and Medicaid) or negotiated with (managed care health plans and commercial insurance companies) the third-party payors. The payment arrangements with third-party payors for the services we provide to the related patients typically specify payments at amounts less than our standard charges and generally provide for payments based upon predetermined rates per diagnostic services or discounted fee-for-service rates. Management continually reviews the contractual estimation process to consider and incorporate updates to laws and regulations and the frequent changes in managed care contractual terms resulting from contract renegotiations and renewals. As it relates to the consolidated medical group, this service fee revenue includes payments for both the professional medical interpretation revenue recognized by them as well as the payment for all other aspects related to our providing the imaging services, for which we earn management fees. As it relates to others centers, this service fee revenue is earned through providing the use of our diagnostic imaging equipment and the provision of technical services as well as providing administration services such as clerical and administrative personnel, bookkeeping and accounting services, billing and collection, provision of medical and office supplies, secretarial, reception and transcription services, maintenance of medical records, and advertising, marketing and promotional activities. Our revenues are based upon the estimated amounts we expect to be entitled to receive from patients and third-party payors. Estimates of contractual allowances under managed care and commercial insurance plans are based upon the payment terms specified in the related contractual agreements. Revenues related to uninsured patients and copayment and deductible amounts for patients who have health care coverage may have discounts applied (uninsured discounts and contractual discounts). We also record estimated implicit price concessions (based primarily on historical collection experience) related to uninsured accounts to record self-pay revenues at the estimated amounts we expect to collect. Under capitation arrangements with various health plans, we earn a per-enrollee amount each month for making available diagnostic imaging services to all plan enrollees under the capitation arrangement. Revenue under capitation arrangements is recognized in the period in which we are obligated to provide services to plan enrollees under contracts with various health plans. We typically experience some seasonality to our revenue stream. During the first quarter of each year we generally experience the lowest volumes of procedures and the lowest level of revenue for any quarter during the year. It is common for inclement weather to result in patient appointment cancellations and, in some cases, imaging center closures. Second, in recent years, we have observed greater participation in high deductible health plans by patients. As these high deductibles reset in January for most of these patients, we have observed that patients utilize medical services less during the first quarter, when securing medical care will result in significant out-of-pocket expenditures. Our total revenues during the three and six months ended June 30, 2020 and 2019 are presented in the table below based on an allocation of the estimated transaction price with the patient between the primary patient classification of insurance coverage (in thousands):
| Three Months Ended June 30, |  | Six Months Ended June 30,
2020 |  | 2019 |  | 2020 |  | 2019
Commercial insurance | $ | 96,349 |  |  | $ | 160,185 |  |  | $ | 251,711 |  |  | $ | 311,899 |
Medicare | 35,082 |  |  | 60,151 |  |  | 92,587 |  |  | 114,280 |
Medicaid | 4,300 |  |  | 7,295 |  |  | 10,980 |  |  | 14,423 |
Workers' compensation/personal injury | 7,359 |  |  | 11,014 |  |  | 17,916 |  |  | 22,062 |
Other patient revenue | 3,549 |  |  | 6,017 |  |  | 9,217 |  |  | 11,858 |
Management fee revenue | 3,332 |  |  | 1,753 |  |  | 5,899 |  |  | 3,870 |
Teleradiology and Software revenue | 2,200 |  |  | 4,063 |  |  | 5,971 |  |  | 8,449 |
Other | 3,527 |  |  | 7,693 |  |  | 9,750 |  |  | 14,003 |
Service fee revenue | 155,698 |  |  | 258,171 |  |  | 404,031 |  |  | 500,844 |
Revenue under capitation arrangements | 34,868 |  |  | 30,926 |  |  | 68,099 |  |  | 59,803 |
Total revenue | $ | 190,566 |  |  | $ | 289,097 |  |  | $ | 472,130 |  |  | $ | 560,647 |
PROVIDER RELIEF FUNDING - In the second quarter of 2020, we received approximately $25.5 million in funding from The Provider Relief Fund that offered government assistance to eligible providers throughout the healthcare system in support of certain expenses or lost revenue attributable to the coronavirus pandemic. Generally, the department of Health and Human Services ("HHS") does not intend to recoup funds as long as a provider's lost revenue and increased expenses exceed the amount of provider relief funding one has received. HHS reserves the right to audit Relief Fund recipients in the future to ensure that this requirement is met and collect any Relief Fund amounts that were made in error or exceed lost revenue or increased expenses due to the pandemic. Failure to comply with the terms and conditions may be grounds for recoupment.
RECLASSIFICATION | RECLASSIFICATION –We have reclassified certain amounts previously classified as held for sale related to property and equipment and goodwill to conform to our 2020 presentation.
ACCOUNTS RECEIVABLE | ACCOUNTS RECEIVABLE - Substantially all of our accounts receivable are due under fee-for-service contracts from third party payors, such as insurance companies and government-sponsored healthcare programs, or directly from patients. Services are generally provided pursuant to one-year contracts with healthcare providers. We continuously monitor collections from our payors and maintain an allowance for bad debts based upon specific payor collection issues that we have identified and our historical experience. In regards to the credit loss standard, we have concluded that the historical credit loss experienced across our receivable portfolio is materially similar to any current expected credit losses estimated under the Current Expected Credit Loss ("CECL") model.
DEFERRED REVENUE | DEFERRED REVENUE - Deferred revenue represents liability for payments received for performance obligations which have yet to be satisfied and is offen associated with sales of our eRad subsidiary. In April of 2020, we received approximately $39.4 million in advanced Medicare payments from the Centers for Medicare and Medicaid Services ("CMS") as part of the expanded Accelerated and Advance Payment Program under the Coronavirus Aid, Relief, and Economic Security (CARES) Act. As these payments are required to be repaid to CMS beginning 120 days after their receipt through offsets from new Medicare claims over a three month period, we have recorded amounts received to deferred revenue which will be amortized as Medicare reimbursements are earned. In addition, in May of 2020 we received $5.0 million in advance payments from an insurance carrier with similar repayment terms as the CMS.
DEFERRED FINANCING COSTS | DEFERRED FINANCING COSTS - Costs of financing are deferred and amortized using the effective interest rate method. Deferred financing costs, net of accumulated amortization, were $1.3 million and $1.6 million, as of June 30, 2020 and December 31, 2019, respectively and related to our line of credit. In conjunction with our Sixth and Seventh Amendments to our First Lien Credit Agreement (as defined below), a net addition of approximately $0.7 million was added to deferred financing costs in the second quarter of 2019.
PROPERTY AND EQUIPMENT | PROPERTY AND EQUIPMENT - Property and equipment are stated at cost, less accumulated depreciation and amortization. Depreciation of property and equipment is performed using the straight-line method over the estimated useful lives of the assets acquired, which range from 3 to 15 years. Leasehold improvements are amortized at the lesser of lease term or their estimated useful lives, which range from 3 to 15 years. Maintenance and repairs are charged to expense as incurred.
BUSINESS COMBINATION | BUSINESS COMBINATION - When the qualifications for business combination accounting treatment are met, it requires us to recognize separately from goodwill the assets acquired and the liabilities assumed at their acquisition date fair values. Goodwill as of the acquisition date is measured as the excess of consideration transferred over the net of the acquisition date fair values of the assets acquired and the liabilities assumed. While we use our best estimates and assumptions to accurately value assets acquired and liabilities assumed at the acquisition date, our estimates are inherently uncertain and subject to refinement. As a result, during the measurement period, which may be up to one year from the acquisition date, we record adjustments to the assets acquired and liabilities assumed with the corresponding offset to goodwill. Upon the conclusion of the measurement period or final determination of the values of assets acquired or liabilities assumed, whichever comes first, any subsequent adjustments are recorded to our consolidated statements of operations.
GOODWILL AND INDEFINITE LIVED INTANGIBLES | GOODWILL AND INDEFINITE LIVED INTANGIBLES - Goodwill at June 30, 2020 totaled $467.8 million. Indefinite lived intangible assets at June 30, 2020 were $11.3 million. Goodwill and Indefinite Lived Intangibles are recorded as a result of business combinations. When we determine the carrying value of reporting unit exceeds its fair value an impairment charge would be recognized and should not exceed the total amount of goodwill allocated to that reporting unit. We tested goodwill and indefinite lived intangibles for impairment on October 1, 2019, noting no impairment. In addition to the annual impairment test, we regularly assess if an event has occurred which would require interim impairment testing. We considered the current and expected future economic and market conditions surrounding the novel strain of coronavirus ("COVID-19") pandemic and did not identify an indication of goodwill impairment being more likely than not through June 30, 2020. Activity in goodwill for the six months ended June 30, 2020 is provided below (in thousands):
Balance as of December 31, 2019 | $ | 441,973 |
Goodwill acquired through the acquisition of Olney Open MRI, LLC | 601 |
Goodwill acquired through the acquisition of MRI at Woodbridge, LLC | 1,833 |
Goodwill acquired through the acquisition of DeepHealth, Inc. | 23,396 |
Balance as of June 30, 2020 | $ | 467,803 |
INCOME TAXES | INCOME TAXES - Income tax expense is computed using an asset and liability method and using expected annual effective tax rates. Under this method, deferred income tax assets and liabilities result from temporary differences in the financial reporting bases and the income tax reporting bases of assets and liabilities. The measurement of deferred tax assets is reduced, if necessary, by the amount of any tax benefit that, based on available evidence, is not expected to be realized. When it appears more likely than not that deferred taxes will not be realized, a valuation allowance is recorded to reduce the deferred tax asset to its estimated realizable value. For net deferred tax assets we consider estimates of future taxable income in determining whether our net deferred tax assets are more likely than not to be realized. We recorded an income tax benefit of $4.5 million, or an effective tax rate of 33.3%, for the three months ended June 30, 2020 compared to an income tax expense of $3.0 million, or an effective tax rate of 28.1% for the three months ended June 30, 2019. We recorded an income tax benefit of $8.9 million, or an effective tax rate of 27.8%, for the six months ended June 30, 2020 compared to an income tax expense of $1.7 million , or an effective tax rate of 23.5% for the six months ended June 30, 2019.The income tax rates for the three and six months ended June 30, 2020 diverge from the federal statutory rate due to (i) noncontrolling interests due to the controlled partnerships; (ii) effects of state income taxes; and (iii) excess tax benefits attributable to share-based compensation. We believe no significant changes in the unrecognized tax benefits will occur within the next 12 months. On March 27, 2020, the President of the United States signed into law the Coronavirus Aid, Relief, and Economic Security Act ("CARES Act"). The CARES Act, among other things, includes certain income tax provisions for individuals and corporations; however, these benefits do not impact the Company’s current tax provision.
LEASES | LEASES - We determine if an arrangement is a lease at inception. Operating leases are included in operating lease right-of-use (“ROU”) assets, current operating lease liabilities, and long term operating lease liability in our consolidated balance sheets. Finance leases are included in property and equipment, current finance lease liability, and long-term finance lease liability in our consolidated balance sheets. ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. Operating lease ROU assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. As most of our leases do not provide an implicit rate, we use our incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments. We use the implicit rate when readily determinable. We include options to extend a lease when it is reasonably certain that we will exercise that option. Lease expense for lease payments is recognized on a straight-line basis over the lease term. For a contract in which we are a lessee that contains fixed payments for both lease and non-lease components, we have elected to account for the components as a single lease component, as permitted. For finance leases, interest expense on the lease liability is recognized using the effective interest method and amortization of the right-of-use asset is recognized on a straight-line basis over the shorter of the estimated useful life of the asset or the lease term. ROU assets are tested for impairment if circumstances suggest that the carrying amount may not be recoverable. Our ROU assets consist of facility and equipment assets on operating leases. No events have occurred such as fire, flood, or other acts which have impaired the integrity of our ROU assets in 2020. Our facility leases require us to maintain insurance policies which would cover major damage to our facilities. We maintain business interruption insurance to cover loss of business due to a facility becoming non-operational under certain circumstances. Our equipment leases are covered by warranty and service contracts which cover repairs and provide regular maintenance to keep the equipment in functioning order.
EQUITY BASED COMPENSATION | EQUITY BASED COMPENSATION – We have one long-term incentive plan that we adopted in 2006 and which we first amended and restated as of April 20, 2015, and again on March 9, 2017 (the “Restated Plan”). The Restated Plan was approved by our stockholders at our annual stockholders meeting on June 8, 2017. We have reserved for issuance under the Restated Plan 14,000,000 shares of common stock. We can issue options, stock awards, stock appreciation rights, stock units and cash awards under the Restated Plan. Certain options granted under the Restated Plan to employees are intended to qualify as incentive stock options under existing tax regulations. Stock options and warrants generally vest over three to five years and expire five to ten years from date of grant. The compensation expense recognized for all equity-based awards is recognized over the awards’ service periods. Equity-based compensation is classified in operating expenses within the same line item as the majority of the cash compensation paid to employees. In connection with our acquisition of DeepHealth Inc. on June 1, 2020, we assumed the DeepHealth, Inc. 2017 Stock Incentive Plan, including outstanding options awards that can be exercised for our common stock. No additional awards will be granted under the DeepHealth, Inc. 2017 Equity Incentive Plan. See Note 4, Facility Acquisitions and Note 6, Stock-Based Compensation, for more information.
COMPREHENSIVE INCOME | COMPREHENSIVE LOSS - ASC 220 establishes rules for reporting and displaying comprehensive loss or income and its components. Our unrealized gains or losses on foreign currency translation adjustments, interest rate cap and swap agreements are included in comprehensive loss and are included in the consolidated statements of comprehensive loss for the three and six months ended June 30, 2020 and 2019
COMMITMENTS AND CONTINGENCIES | COMMITMENTS AND CONTINGENCIES - We are party to various legal proceedings, claims, and regulatory, tax or government inquiries and investigations that arise in the ordinary course of business. With respect to these matters, we evaluate the developments on a regular basis and accrue a liability when we believe a loss is probable and the amount can be reasonably estimated. Based on current information, we do not believe that reasonably possible or probable losses associated with pending legal proceedings would either individually or in the aggregate, have a material adverse effect on our business and consolidated financial statements. However, the outcome of these matters is inherently uncertain. Therefore, if one or more of these matters were resolved against us for amounts in excess of management's expectations, our results of operations and financial condition, including in a particular reporting period in which any such outcome becomes probable and estimable, could be materially adversely affected.
DERIVATIVE INSTRUMENTS | DERIVATIVE INSTRUMENTS 2016 CAPS In the fourth quarter of 2016, we entered into two forward interest rate cap agreements ("2016 Caps"). The 2016 Caps will mature in September and October 2020. The 2016 Caps had notional amounts of $150,000,000 and $350,000,000, respectively. Under these arrangements, the Company purchased a cap on 3 month LIBOR at 2.0%. We incurred a $5.3 million premium to enter into the 2016 Caps which is being accrued over the life of the agreements. At inception, we designated our 2016 Caps as cash flow hedges of floating-rate borrowings. In accordance with accounting guidance, derivatives that have been designated and qualify as cash flow hedging instruments are reported at fair value. The gain or loss of the hedge (i.e. change in fair value) is reported as a component of comprehensive loss in the consolidated statement of equity since such hedge has been determined to be effective. See Fair Value Measurements section below for the fair value of the 2016 Caps at June 30, 2020. A tabular presentation of the effect of derivative instruments on our consolidated statement of comprehensive loss of the 2016 Caps is as follows (amounts in thousands):
For the three months ended June 30, 2020
Account |  | April 1, 2020 Balance |  | Amount of comprehensive gain recognized on derivative net of taxes |  | June 30, 2020 Balance |  | Location
Accumulated Other Comprehensive Loss, net of taxes |  | (1,597 | ) |  | 188 |  |  | (1,409 | ) |  | Liabilities and Equity
For the six months ended June 30, 2020
Account |  | January 1, 2020 Balance |  | Amount of comprehensive gain recognized on derivative net of taxes |  | June 30, 2020 Balance |  | Location
Accumulated Other Comprehensive Loss, net of taxes |  | (1,877 | ) |  | 468 |  |  | (1,409 | ) |  | Liabilities and Equity
2019 SWAPS In the second quarter of 2019, we entered into four forward interest rate agreements ("2019 Swaps"). The 2019 Swaps have total notional amounts of $500,000,000, consisting of two agreements of $50,000,000 each and two agreements of $200,000,000 each. The 2019 Swaps will secure a constant interest rate associated with portions of our variable rate bank debt and have an effective date of October 13, 2020. They will mature in October 2023 for the smaller notional and October 2025 for the larger notional. Under these arrangements, we arranged the 2019 Swaps with locked in 1 month LIBOR rates at 1.96% for the $100,000,000 notional and at 2.05% for the $400,000,000 notional. As of the effective date, we will be liable for premium payments if interest rates decline below arranged rates, but will receive interest payments if rates remain above the arranged rates. At inception, we designated our 2019 Swaps as cash flow hedges of floating-rate borrowings. In accordance with accounting guidance, derivatives that have been designated and qualify as cash flow hedging instruments are reported at fair value. The gain or loss on the effective portion of the hedge (i.e. change in fair value) is reported as a component of comprehensive loss in the consolidated statement of equity. The remaining gain or loss, if any, is recognized currently in earnings. As a result of the economic impact of the coronavirus pandemic, which precipitated a reduction in interest rates , the cash flows for our $400,000,000 notional interest rate swap contract locked in at 2.05% due October 2025 does not match the cash flows for our First Lien Term Loans and so we have determined that they are not currently effective as cash flow hedges. Accordingly, all changes in their fair value after April 1, 2020 will be recognized in earnings. As of April 1, 2020, the total change in fair value relating to swap due October 2025 included in other comprehensive income was approximately $21.4 million, net of taxes. This amount will be amortized to interest expense through October 2025 at $0.3 million per month. A tabular presentation of the effect of derivative instruments on our consolidated statement of comprehensive loss of the 2019 swaps which remain effective is as follows (amounts in thousands):
For the three months ended June 30, 2020
Account |  | April 1, 2020 Balance |  | Amount of comprehensive loss recognized on derivative net of taxes |  | Amount of loss reclassified out of accumulated OCI into income (prior period effective portion) |  | June 30, 2020 Balance |  | Location
Accumulated Other Comprehensive Loss, net of taxes |  | $ | (24,699 | ) |  | $ | (599 | ) |  | $ | 892 |  |  | $ | (24,406 | ) |  | Liabilities and Equity
For the six months ended June 30, 2020
Account |  | January 1, 2020 Balance |  | Amount of comprehensive loss recognized on derivative net of taxes |  | Amount of loss reclassified out of accumulated OCI into income (prior period effective portion) |  | June 30, 2020 Balance |  | Location
Accumulated Other Comprehensive Loss, net of taxes |  | $ | (5,870 | ) |  | $ | (19,428 | ) |  | $ | 892 |  |  | $ | (24,406 | ) |  | Liabilities and Equity
A tabular presentation of the effect of derivative instruments on our statement of operations of the 2019 Swaps for the Swaps that became ineffective during the second quarter is as follows (amounts in thousands):
For the three months ended June 30, 2020
Ineffective interest rate swap |  | Amount of loss recognized in income on derivative (current period ineffective portion) |  | Location of loss recognized in Income on derivative (current period ineffective portion) |  | Amount of loss reclassified from accumulated OCI into income (prior period effective portion) |  | Location of gain (Loss) reclassified from accumulated OCI into income (prior period effective portion)
Interest rate contracts |  | $ | (3,843 | ) |  | Other income (expense) |  | $ | (892 | ) |  | Interest income (expense)
FAIR VALUE MEASUREMENTS | FAIR VALUE MEASUREMENTS – Assets and liabilities subject to fair value measurements are required to be disclosed within a fair value hierarchy. The fair value hierarchy ranks the quality and reliability of inputs used to determine fair value. Accordingly, assets and liabilities carried at, or permitted to be carried at, fair value are classified within the fair value hierarchy in one of the following categories based on the lowest level input that is significant to a fair value measurement: Level 1—Fair value is determined by using unadjusted quoted prices that are available in active markets for identical assets and liabilities. Level 2—Fair value is determined by using inputs other than Level 1 quoted prices that are directly or indirectly observable. Inputs can include quoted prices for similar assets and liabilities in active markets or quoted prices for identical assets and liabilities in inactive markets. Related inputs can also include those used in valuation or other pricing models such as interest rates and yield curves that can be corroborated by observable market data. Level 3—Fair value is determined by using inputs that are unobservable and not corroborated by market data. Use of these inputs involves significant and subjective judgment. Derivatives: The tables below summarize the estimated fair values of certain of our financial assets that are subject to fair value measurements, and the classification of these assets on our condensed consolidated balance sheets, as follows (in thousands):
| As of June 30, 2020
Level 1 |  | Level 2 |  | Level 3 |  | Total
Current and long term liabilities |  |  |  |  |  |  |  |  |  |  |
2016 caps - Interest Rate Contracts | $ | — |  |  | $ | 446 |  |  | $ | — |  |  | $ | 446 |
2019 swaps - Interest Rate Contracts | $ | — |  |  | $ | 39,304 |  |  | $ | — |  |  | $ | 39,304 |
| As of December 31, 2019
Level 1 |  | Level 2 |  | Level 3 |  | Total
Current and long term liabilities |  |  |  |  |  |  |  |  |  |  |
2016 caps - Interest Rate Contracts | $ | — |  |  | $ | 1,081 |  |  | $ | — |  |  | $ | 1,081 |
2019 swaps - Interest Rate Contracts | $ | — |  |  | $ | 9,477 |  |  | $ | — |  |  | $ | 9,477 |
The estimated fair value of these contracts was determined using Level 2 inputs. More specifically, the fair value was determined by calculating the value of the difference between the fixed interest rate of the interest rate swaps and the counterparty’s forward LIBOR curve. The forward LIBOR curve is readily available in the public markets or can be derived from information available in the public markets. Long Term Debt: The table below summarizes the estimated fair value compared to our face value of our long-term debt as follows (in thousands):
| As of June 30, 2020
Level 1 |  | Level 2 |  | Level 3 |  | Total Fair Value |  | Total Face Value
First Lien Term Loans and SunTrust Term Loan | $ | — |  |  | $ | 650,954 |  |  | $ | — |  |  | $ | 650,954 |  |  | $ | 684,051 |
| As of December 31, 2019
Level 1 |  | Level 2 |  | Level 3 |  | Total |  | Total Face Value
First Lien Term Loans and SunTrust Term Loan | $ | — |  |  | $ | 708,948 |  |  | $ | — |  |  | $ | 708,948 |  |  | $ | 705,699 |
As of June 30, 2020 and at December 31, 2019 our Barclays revolving credit facility had no balance outstanding. Our SunTrust revolving credit facility relating to our consolidated subsidiary NJIN, had no principal amount outstanding at June 30, 2020 and at December 31, 2019. The estimated fair value of our long-term debt, which is discussed in Note 5, was determined using Level 2 inputs primarily related to comparable market prices. We consider the carrying amounts of cash and cash equivalents, receivables, other current assets, current liabilities and other notes payables to approximate their fair value because of the relatively short period of time between the origination of these instruments and their expected realization or payment. Additionally, we consider the carrying amount of our finance lease obligations to approximate their fair value because the weighted average interest rate used to formulate the carrying amounts approximates current market rates.
EARNINGS PER SHARE | EARNINGS PER SHARE - Earnings per share is based upon the weighted average number of shares of common stock and common stock equivalents outstanding, net of common stock held in treasury, as follows (in thousands except share and per share data):
| Three Months Ended June 30, |  | Six Months Ended June 30,
2020 |  | 2019 |  | 2020 |  | 2019
Net loss (income) attributable to RadNet, Inc.'s common stockholders | $ | (10,594 | ) |  | $ | 4,899 |  |  | $ | (26,952 | ) |  | $ | 1,165 |
BASIC AND DILUTED NET (LOSS) INCOME PER SHARE ATTRIBUTABLE TO RADNET, INC.'S COMMON STOCKHOLDERS |  |  |  |  |  |  |
Weighted average number of common shares outstanding during the period | 50,672,219 |  |  | 49,702,869 |  |  | 50,483,274 |  |  | 49,490,234 |
Basic and diluted net (loss) income per share attributable to RadNet, Inc.'s common stockholders | $ | (0.21 | ) |  | $ | 0.10 |  |  | $ | (0.53 | ) |  | $ | 0.02 |
DILUTED NET INCOME PER SHARE ATTRIBUTABLE TO RADNET, INC.'S COMMON STOCKHOLDERS |  |  |  |  |  |  |
Weighted average number of common shares outstanding during the period | 50,672,219 |  |  | 49,702,869 |  |  | 50,483,274 |  |  | 49,490,234 |
Add nonvested restricted stock subject only to service vesting | — |  |  | 134,260 |  |  | — |  |  | 186,779 |
Add additional shares issuable upon exercise of stock options and warrants | — |  |  | 307,411 |  |  | — |  |  | 311,023 |
Weighted average number of common shares used in calculating diluted net income per share | 50,672,219 |  |  | 50,144,540 |  |  | 50,483,274 |  |  | 49,988,036 |
Diluted net income per share attributable to RadNet, Inc.'s common stockholders | $ | (0.21 | ) |  | $ | 0.10 |  |  | $ | (0.53 | ) |  | $ | 0.02 |
EQUITY INVESTMENTS AT FAIR VALUE | EQUITY INVESTMENTS AT FAIR VALUE–Accounting guidance requires entities to measure equity investments at fair value, with any changes in fair value recognized in net income. If there is no readily determinable fair value, the guidance allows entities the ability to measure investments at cost less impairment.
INVESTMENTS IN JOINT VENTURES | INVESTMENT IN JOINT VENTURES – We have 12 unconsolidated joint ventures with ownership interests ranging from 35% to 55%. These joint ventures represent partnerships with hospitals, health systems or radiology practices and were formed for the purpose of owning and operating diagnostic imaging centers. Professional services at the joint venture diagnostic imaging centers are performed by contracted radiology practices or a radiology practice that participates in the joint venture. Our investment in these joint ventures is accounted for under the equity method, since RadNet does not have a controlling financial interest in such ventures. We evaluate our investment in joint ventures, including cost in excess of book value (equity method goodwill) for impairment whenever indicators of impairment exist. No indicators of impairment existed as of June 30, 2020. Joint venture investment and financial information The following table is a summary of our investment in joint ventures during the six months ended June 30, 2020 (in thousands):
Balance as of December 31, 2019 | $ | 34,470 |
Equity in earnings in these joint ventures | 2,900 |
Balance as of June 30, 2020 | $ | 37,370 |
We charged management service fees from the centers underlying these joint ventures of approximately $3.3 million and $1.8 million for the three months ended June 30, 2020 and 2019, respectively. and $5.9 million and $3.9 million for the six months ended June 30, 2020 and 2019, respectively. We eliminate any unrealized portion of our management service fees with our equity in earnings of joint ventures. The following table is a summary of key balance sheet data for these joint ventures as of June 30, 2020 and December 31, 2019 and income statement data for the six months ended June 30, 2020 and 2019 (in thousands):
Balance Sheet Data: | June 30, 2020 |  | December 31, 2019
Current assets | $ | 32,318 |  |  | $ | 27,427 |
Noncurrent assets | 67,307 |  |  | 61,037 |
Current liabilities | (10,677 | ) |  | (9,217 | )
Noncurrent liabilities | (22,572 | ) |  | (18,872 | )
Total net assets | $ | 66,376 |  |  | $ | 60,375 |
Book value of RadNet joint venture interests | $ | 30,894 |  |  | $ | 28,001 |
Cost in excess of book value of acquired joint venture interests and other | 6,476 |  |  | 6,469 |
Total value of Radnet joint venture interests | $ | 37,370 |  |  | $ | 34,470 |
Total book value of other joint venture partner interests | $ | 35,482 |  |  | $ | 32,374 |
Income statement data for the six months ended June 30, | 2020 |  | 2019
Net revenue | $ | 43,849 |  |  | $ | 55,624 |
Net income | $ | 6,001 |  |  | $ | 8,723 |
RECENT ACCOUNTING AND REPORTING STANDARDS | RECENT ACCOUNTING AND REPORTING STANDARDS Accounting standards adopted In June 2016, the FASB issued ASU No. 2016-13 ("ASU 2016-13), Financial Instruments - Credit Losses. ASU 2016-13 replaces the incurred loss methodology previously utilized for valuing financial instruments with an expected loss methodology that is referred to as the current expected credit loss (CECL) methodology. We prospectively adopted the standard on January 1, 2020 and the adoption did not have a material impact to the condensed consolidated financial statements, resulting in no adjustments to our prior year earnings. See the Accounts Receivable section to Note 2 for further information on our allowances for credit losses. In August 2018, the FASB issued ASU No. 2018-15 (“ASU 2018-15”), Intangibles-Goodwill and Other-Internal-Use Software. ASU 2018-15 aligns the requirements for deferring implementation costs incurred in a cloud computing arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. This ASU is effective in the first quarter of 2020 with early adoption permitted and can be applied either retrospectively or prospectively to all implementation costs incurred after the date of adoption. The adoption of this standard did not have a material impact on our condensed consolidated balance sheet. In March 2020, the FASB issued ASU 2020-03 ("ASU 2020-03"), Codification Improvements to Financial Instruments. The amendments in this update represent changes to clarify or improve the codification and correct unintended application. ASU 2020-03 was effective immediately upon issuance and its adoption did not have a material impact on our financial statements. In August 2018, the FASB issued ASU No. 2018-13 ("ASU 2018-13"), Disclosure Framework – Changes to the Disclosure Requirements for Fair Value Measurements. This standard removes, modifies and adds certain disclosures related to recurring and nonrecurring fair value measurements. We adopted ASC 2018-13 effective January 1, 2020 and it had no effect on our disclosures. Accounting standards not yet adopted In December 2019, the FASB issued ASU 2019-12 ("ASU 2019-12"), Income Taxes (Topic 740). ASU 2019-12 removes certain exceptions related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period, and the recognition of deferred tax liabilities for outside basis differences. It also clarifies and simplifies other areas of the standard. ASU 2019-12 will be effective beginning in the first quarter of 2021. Early adoption is permitted. Certain amendments in this update must be applied on a prospective basis, certain amendments must be applied on a retrospective basis, and certain amendments must be applied on a modified retrospective basis through a cumulative-effect adjustment to retained earnings/(deficit) in the period of adoption. We are currently evaluating the impact this ASU will have on our financial statements and related disclosures as well as the timing of adoption. In January 2020, the FASB issued ASU 2020-01 ("ASU 2020-01"), Investments—Equity Securities (Topic 321), Investments—Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815), clarifying the interaction between accounting standards related to equity securities, equity method investments, and certain derivatives. ASU 2020-01 is effective for fiscal years beginning after December 15, 2020. We do not expect the adoption of this guidance will have a material impact on our financial statements. In March 2020, the FASB issued ASU 2020-04 ("ASU 2020-04"), Reference Rate Reform (Topic 848), Facilitation of the Effects of Reference Rate Reform on Financial Reporting. ASU 2020-04 provides optional expedients and exceptions for applying generally accepted accounting principles to certain contract modifications and hedging relationships that reference London Inter-bank Offered Rate (LIBOR) or another reference rate expected to be discontinued. The guidance is effective upon issuance and generally can be applied through December 31, 2022. We are currently evaluating the potential impact of ASU 2020-04 on our financial statements.

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