Change Healthcare (CHNG) 10-Q 4 Feb 21 2021 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Dec. 31, 2020	Jan. 26, 2021
Document Type	10-Q
Document Quarterly Report	true
Current Fiscal Year End Date	--03-31
Document Period End Date	Dec. 31, 2020
Document Fiscal Year Focus	2021
Document Transition Report	false
Entity File Number	001-38961
Entity Registrant Name	Change Healthcare Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	82-2152098
Entity Address, Address Line One	424 Church Street
Entity Address, Address Line Two	Suite 1400
Entity Address, City or Town	Nashville
Entity Address, State or Province	TN
Entity Address, Postal Zip Code	37219
City Area Code	615
Local Phone Number	932-3000
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		304,771,882
Amendment Flag	false
Entity Central Index Key	0001756497
Document Fiscal Period Focus	Q3
Former Address [Member]
Entity Address, Address Line One	3055 Lebanon Pike
Entity Address, Address Line Two	Suite 1000
Entity Address, City or Town	Nashville
Entity Address, State or Province	TN
Entity Address, Postal Zip Code	37214
Common Stock [Member]
Title of 12(b) Security	Common Stock, par value $.001 per share
Trading Symbol	CHNG
Security Exchange Name	NASDAQ
Tangible Equity Units [Member]
Title of 12(b) Security	6.00% Tangible Equity Units
Trading Symbol	CHNGU
Security Exchange Name	NASDAQ

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Total revenue	$ 785,141		$ 2,235,261
Operating expenses
Cost of operations (exclusive of depreciation and amortization below)	332,373		977,568
Research and development	58,323		168,110
Sales, marketing, general and administrative	161,959	$ 1,115	499,039	$ 2,504
Customer postage	49,877		145,672
Depreciation and amortization	151,143		436,552
Accretion and changes in estimate with related parties, net	956	(1,191)	10,414	47,172
Gain on sale of businesses	(32,217)		(60,487)
Total operating expenses	722,414	(76)	2,176,868	49,676
Operating income (loss)	62,727	76	58,393	(49,676)
Non-operating (income) expense
Interest expense, net	61,439	1	185,733	1
Contingent consideration			(3,000)
Loss on extinguishment of debt	6,145		7,634
Loss from Equity Method Investment in the Joint Venture		8,764		104,497
(Gain) loss on forward purchase contract		(74,084)		(71,649)
Other, net	(2,491)	(580)	(1,443)	(1,245)
Total non-operating (income) expense	65,093	(65,899)	188,924	31,604
Income (loss) before income tax provision (benefit)	(2,366)	65,975	(130,531)	(81,280)
Income tax provision (benefit)	(4,562)	15,240	(31,411)	(564)
Net income (loss)	$ 2,196	$ 50,735	$ (99,120)	$ (80,716)
Net income (loss) per share:
Basic	$ 0.01	$ 0.35	$ (0.31)	$ (0.67)
Diluted	$ 0.01	$ 0.35	$ (0.31)	$ (0.67)
Weighted average common shares outstanding:
Basic	321,013,595	143,392,295	320,570,092	120,657,859
Diluted	324,815,524	146,201,860	320,570,092	120,657,859
Solutions [Member]
Total revenue	$ 735,264		$ 2,089,589
Postage [Member]
Total revenue	$ 49,877		$ 145,672

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Consolidated Statements of Comprehensive Income (Loss) [Abstract]
Net income (loss)	$ 2,196	$ 50,735	$ (99,120)	$ (80,716)
Other comprehensive income (loss):
Foreign currency translation adjustment	11,526	1,728	23,100	3,537
Changes in fair value of interest rate caps, net of taxes	(81)	1,313	(6,261)	(5,428)
Unrealized gain (loss) on available for sale debt securities of the Joint Venture, net of taxes		134		1,307
Other comprehensive income (loss)	11,445	3,175	16,839	(584)
Total comprehensive income (loss)	$ 13,641	$ 53,910	$ (82,281)	$ (81,300)

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Mar. 31, 2020
Current assets:
Cash & cash equivalents	$ 137,357	$ 410,405
Accounts receivable, net	697,948	740,105
Contract assets, net	125,509	132,704
Prepaid expenses and other current assets	127,442	117,967
Total current assets	1,088,256	1,401,181
Property and equipment, net	183,843	206,196
Operating lease right-of-use assets, net	99,258
Goodwill	4,105,413	3,795,325
Intangible assets, net	4,302,594	4,365,806
Investment in business purchase option		146,500
Other noncurrent assets, net	368,448	192,372
Total assets	10,147,812	10,107,380
Current liabilities:
Accounts payable	59,664	68,169
Accrued expenses	502,992	390,294
Deferred revenue	393,823	302,313
Due to related parties, net	11,606	20,234
Current portion of long-term debt	37,019	278,779
Current portion of operating lease liabilities	30,813
Total current liabilities	1,035,917	1,059,789
Long-term debt, excluding current portion	4,780,828	4,710,294
Long-term operating lease liabilities	80,789
Deferred income tax liabilities	618,397	615,904
Tax receivable agreement obligations due to related parties	99,614	177,826
Tax receivable agreement obligations	228,294	164,633
Other long-term liabilities	70,235	93,487
Total liabilities	6,914,074	6,821,933
Commitments and contingencies
Stockholders' Equity:
Common Stock (par value, $.001), 9,000,000,000 and 9,000,000,000 shares authorized and 304,656,863 and 303,428,142 shares issued and outstanding at December 31, 2020 and March 31, 2020, respectively	305	303
Preferred stock (par value, $.001), 900,000,000 shares authorized and no shares issued and outstanding at both December 31, 2020 and March 31, 2020
Additional paid-in capital	4,253,567	4,222,580
Accumulated other comprehensive income (loss)	9,467	(7,372)
Accumultaed deficit	(1,029,601)	(930,064)
Total stockholders' equity	3,233,738	3,285,447
Total liabilities and stockholders' equity	10,147,812	10,107,380
Common Stock [Member]
Stockholders' Equity:
Total stockholders' equity	$ 305	$ 303

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2020	Mar. 31, 2020
Common Stock, par value	$ 0.001	$ 0.001
Common Stock, shares authorized	9,000,000,000	9,000,000,000
Common Stock, shares issued	304,656,863	303,428,142
Common Stock, shares outstanding	304,656,863	303,428,142
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	900,000,000	900,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]Cumulative Effect, Period of Adoption, Adjustment [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]Cumulative Effect, Period of Adoption, Adjustment [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]	Total
Balance (ASC 606 [Member]) at Mar. 31, 2019			$ 35,797,000				$ 35,797,000
Balance (ASU 2018-02 [Member]) at Mar. 31, 2019			(422,000)		$ 422,000
Balance at Mar. 31, 2019	$ 75,000	$ 1,153,509,000		$ (17,841,000)		$ (3,256,000)		$ 1,132,487,000
Balance, shares at Mar. 31, 2019	75,474,654
Equity compensation expense		5,862,000						5,862,000
Net income (loss)				(37,517,000)				(37,517,000)
Foreign currency translation adjustment						226,000		226,000
Change in fair value of interest rate caps, net of taxes						(5,431,000)		(5,431,000)
Balance at Jun. 30, 2019	$ 75,000	1,159,371,000		(19,983,000)		(8,039,000)		1,131,424,000
Balance, shares at Jun. 30, 2019	75,474,654
Balance (ASC 606 [Member]) at Mar. 31, 2019			35,797,000				35,797,000
Balance (ASU 2018-02 [Member]) at Mar. 31, 2019			(422,000)		$ 422,000
Balance at Mar. 31, 2019	$ 75,000	1,153,509,000		(17,841,000)		(3,256,000)		1,132,487,000
Balance, shares at Mar. 31, 2019	75,474,654
Net income (loss)								(80,716,000)
Unrealized gain (loss) on available for sale debt securities of the Joint Venture								1,307,000
Foreign currency translation adjustment								3,537,000
Change in fair value of interest rate caps, net of taxes								(5,428,000)
Balance at Dec. 31, 2019	$ 124,000	2,016,608,000		(63,183,000)		(3,418,000)		1,950,131,000
Balance, shares at Dec. 31, 2019	125,027,648
Balance at Jun. 30, 2019	$ 75,000	1,159,371,000		(19,983,000)		(8,039,000)		1,131,424,000
Balance, shares at Jun. 30, 2019	75,474,654
Equity compensation expense		8,585,000						8,585,000
Issuance of Change Healthcare Inc. common stock upon initial public offering	$ 49,000	608,630,000						608,679,000
Issuance of Change Healthcare Inc. common stock upon initial public offering, shares	49,285,713
Effect of initial public offering issuance costs on Joint Venture equity		(4,160,000)						(4,160,000)
Issuance of tangible equity units		232,929,000						232,929,000
Issuance of Change Healthcare Inc. common stock upon exercise of equity awards		1,139,000						1,139,000
Issuance of Change Healthcare Inc. common stock upon exercise of equity awards, shares	175,439
Net income (loss)				(93,935,000)				(93,935,000)
Unrealized gain (loss) on available for sale debt securities of the Joint Venture						1,173,000		1,173,000
Foreign currency translation adjustment						1,583,000		1,583,000
Change in fair value of interest rate caps, net of taxes						(1,310,000)		(1,310,000)
Balance at Sep. 30, 2019	$ 124,000	2,006,494,000		(113,918,000)		(6,593,000)		1,886,107,000
Balance, shares at Sep. 30, 2019	124,935,806
Equity compensation expense		9,148,000						9,148,000
Issuance of Change Healthcare Inc. common stock upon exercise of equity awards		966,000						966,000
Issuance of Change Healthcare Inc. common stock upon exercise of equity awards, shares	91,842
Net income (loss)				50,735,000				50,735,000
Unrealized gain (loss) on available for sale debt securities of the Joint Venture						134,000		134,000
Foreign currency translation adjustment						1,728,000		1,728,000
Change in fair value of interest rate caps, net of taxes						1,313,000		1,313,000
Balance at Dec. 31, 2019	$ 124,000	2,016,608,000		(63,183,000)		(3,418,000)		1,950,131,000
Balance, shares at Dec. 31, 2019	125,027,648
Balance (ASU 2016-13 [Member]) at Mar. 31, 2020			(417,000)				(417,000)
Balance at Mar. 31, 2020	$ 303,000	4,222,580,000		(930,064,000)		(7,372,000)		3,285,447,000
Balance, shares at Mar. 31, 2020	303,428,142
Equity compensation expense		8,780,000						8,780,000
Issuance of common stock under equity compensation plans	$ 1,000	2,143,000						2,144,000
Issuance of common stock under equity compensation plans, shares	341,230
Net income (loss)				(58,694,000)				(58,694,000)
Foreign currency translation adjustment						6,353,000		6,353,000
Change in fair value of interest rate caps, net of taxes						(4,184,000)		(4,184,000)
Other		(75,000)						(75,000)
Balance at Jun. 30, 2020	$ 304,000	4,233,428,000		(989,175,000)		(5,203,000)		3,239,354,000
Balance, shares at Jun. 30, 2020	303,769,372
Balance (ASU 2016-13 [Member]) at Mar. 31, 2020			$ (417,000)				$ (417,000)
Balance at Mar. 31, 2020	$ 303,000	4,222,580,000		(930,064,000)		(7,372,000)		3,285,447,000
Balance, shares at Mar. 31, 2020	303,428,142
Net income (loss)								(99,120,000)
Foreign currency translation adjustment								23,100,000
Change in fair value of interest rate caps, net of taxes								(6,261,000)
Balance at Dec. 31, 2020	$ 305,000	4,253,567,000		(1,029,601,000)		9,467,000		3,233,738,000
Balance, shares at Dec. 31, 2020	304,656,863
Balance at Jun. 30, 2020	$ 304,000	4,233,428,000		(989,175,000)		(5,203,000)		3,239,354,000
Balance, shares at Jun. 30, 2020	303,769,372
Equity compensation expense		12,372,000						12,372,000
Issuance of common stock under equity compensation plans		408,000						408,000
Issuance of common stock under equity compensation plans, shares	911,961
Employee tax withholding on vesting of equity compensation awards	$ (254,764)	(3,131,000)						(3,131,000)
Net income (loss)				(42,622,000)				(42,622,000)
Foreign currency translation adjustment						5,221,000		5,221,000
Change in fair value of interest rate caps, net of taxes						(1,996,000)		(1,996,000)
Other		(356,000)						(356,000)
Balance at Sep. 30, 2020	$ 304,000	4,242,721,000		(1,031,797,000)		(1,978,000)		3,209,250,000
Balance, shares at Sep. 30, 2020	304,426,569
Equity compensation expense		9,673,000						9,673,000
Issuance of common stock under equity compensation plans	$ 1,000	1,606,000						1,607,000
Issuance of common stock under equity compensation plans, shares	249,288
Employee tax withholding on vesting of equity compensation awards	$ (18,994)	(294,000)						(294,000)
Net income (loss)				2,196,000				2,196,000
Foreign currency translation adjustment						11,526,000		11,526,000
Change in fair value of interest rate caps, net of taxes						(81,000)		(81,000)
Other		(139,000)						(139,000)
Balance at Dec. 31, 2020	$ 305,000	$ 4,253,567,000		$ (1,029,601,000)		$ 9,467,000		$ 3,233,738,000
Balance, shares at Dec. 31, 2020	304,656,863

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Dec. 31, 2020	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities:
Net income (loss)	$ 2,196	$ (99,120)	$ (80,716)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Loss from Equity Method Investment in the Joint Venture			104,497
Depreciation and amortization	151,143	436,552
Amortization of capitalized software developed for sale	460	550
Accretion and changes in estimate, net	(2,759)	8,429
Equity compensation		34,858
Deferred income tax expense (benefit)		(33,905)	(564)
Amortization of debt discount and issuance costs		24,587	403
Contingent consideration		(3,000)
Gain on sale of businesses	(32,217)	(60,487)
Loss on extinguishment of debt	6,145	7,634
(Gain) loss on forward purchase contract			(71,649)
Non-cash lease expense		21,930
Other, net		7,681	1,526
Changes in operating assets and liabilities:
Accounts receivable, net		28,331
Contract assets, net		5,201
Prepaid expenses and other		(69,609)	(1,335)
Accounts payable		(15,785)
Accrued expenses and other liabilities		68,708	47,255
Deferred revenue		124,679
Due to the Joint Venture, net			583
Net cash provided by (used in) operating activities		487,234
Cash flows from investing activities:
Capitalized expenditures		(182,929)
Acquisitions, net of cash acquired		(439,483)
Proceeds from sale of businesses		117,124
Investment in the Joint Venture			(610,784)
Investment in debt and equity securities of the Joint Venture			(278,875)
Other, net		1,100	7,332
Net cash provided by (used in) investing activities		(504,188)	(882,327)
Cash flows from financing activities:
Payments on Revolving Facility		(250,000)
Payments on Term Loan Facility		(265,000)
Proceeds from issuance of Senior Notes		325,000
Payments under tax receivable agreements		(20,691)
Receipts (payments) on derivative instruments		(22,255)
Employee tax withholding on vesting of equity compensation awards		(3,425)
Payments on deferred financing obligations		(9,081)
Payment of senior amortizing notes		(11,599)	(7,332)
Proceeds from exercise of equity awards		4,158	2,105
Proceeds from initial public offering, net of issuance costs			608,679
Proceeds from issuance of equity component of tangible equity units, net of issuance costs			232,929
Proceeds from issuance of debt component of tangible equity units			47,367
Other, net		(6,650)	(1,421)
Net cash provided by (used in) financing activities		(259,543)	882,327
Effect of exchange rate changes on cash and cash equivalents		3,449
Net increase (decrease) in cash and cash equivalents		(273,048)
Cash and cash equivalents at beginning of period		410,405	3,409
Cash and cash equivalents at end of period	$ 137,357	$ 137,357	$ 3,409

Nature of Business and Organiza

Nature of Business and Organization	9 Months Ended
	Dec. 31, 2020
Nature of Business and Organization [Abstract]
Nature of Business and Organization	1. Nature of Business and Organization Change Healthcare Inc. (the “Company”, “our” or “we”) is an independent healthcare technology company, focused on accelerating the transformation of the healthcare system through the power of our healthcare platform. We provide data and analytics-driven solutions to improve clinical, financial and patient engagement outcomes in the U.S. healthcare system. Our platform and comprehensive suite of software, analytics, technology-enabled services and network solutions drive improved results in the complex workflows of healthcare system payers and providers by enhancing clinical decision making, simplifying billing, collection and payment processes, and enabling a better patient experience. We are a Delaware corporation originally formed on June 22, 2016, to initially hold an equity investment in Change Healthcare LLC (the “Joint Venture”), a joint venture between the Company and McKesson Corporation (“McKesson”). Amendment of Certificate of Incorporation Effective June 26, 2019 and in contemplation of our initial public offering of common stock, we amended the certificate of incorporation to effect a 126.4 for 1 stock split for all previously issued shares of common stock, to increase the authorized number of common stock, and to authorize shares of preferred stock. Following this amendment, the authorized shares include 9,000,000,000 shares of common stock (par value $.001 per share), one share of Class X stock (par value $.001 per share), and 900,000,000 shares of preferred stock (par value $.001 per share). As a result of the Merger (defined below), the Class X Stock is no longer available for issuance. Initial Public Offering Effective July 1, 2019, we completed our initial public offering of 49,285,713 shares of common stock and a concurrent offering of 5,750,000 tangible equity units (“TEUs”) for net proceeds of $608,679 and $278,875 , respectively. McKesson Exit On March 10, 2020, McKesson completed a split-off of its interest in the Joint Venture through an exchange offer of its common stock for shares of PF2 SpinCo, Inc, a Delaware corporation and wholly owned subsidiary of McKesson (“SpinCo”). Immediately following consummation of the exchange offer, SpinCo was merged with and into Change Healthcare Inc. (the “Merger”). As a result, McKesson no longer owns any voting or economic interest in the Joint Venture. Prior to the Merger, we accounted for our investment in the Joint Venture under the equity method of accounting. Subsequent to the Merger, we own 100% of Change Healthcare LLC, and as a result, consolidate the financial statements of Change Healthcare LLC.  COVID-19 Considerations On March 11, 2020, the World Health Organization declared the current coronavirus (“COVID-19”) outbreak to be a global pandemic. In response to this declaration and the rapid spread of COVID-19 within the U.S., federal, state and local governments throughout the country imposed varying degrees of restrictions on social and commercial activity to promote social distancing in an effort to slow the spread of the illness. These measures led to weakened conditions in many sectors of the economy, including a decline in healthcare transaction volumes that are integral to our business. We experienced, and expect to continue to experience, an adverse impact on our financial results as a result of COVID-19 . However, we are not presently aware of events or circumstances arising from COVID-19 that would require us to revise the carrying value of our assets or liabilities, nor do we expect the impact of COVID-19 to cause us to be unable to comply with our debt covenants or meet our contractual obligations. 

Significant Accounting Policies

Significant Accounting Policies	9 Months Ended
	Dec. 31, 2020
Significant Accounting Policies [Abstract]
Significant Accounting Policies	2. Significant Accounting Policies Basis of Presentation The unaudited consolidated financial statements have been prepared in accordance with United States generally accepted accounting principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X of the Securities and Exchange Commission (“SEC”) Guidelines, Rules and Regulations and, in the opinion of management, reflect all normal recurring adjustments necessary for a fair presentation of results for the unaudited interim periods presented. Certain information and footnote disclosures normally included in annual financial statements prepared in accordance with GAAP have been omitted. The results of operations for the interim period are not necessarily indicative of the results to be obtained for the full fiscal year. All intercompany accounts and transactions have been eliminated in the unaudited consolidated financial statements. Business Combinations We recognize the consideration transferred (i.e., purchase price) in a business combination, as well as the acquired business’ identifiable assets, liabilities and noncontrolling interests at their acquisition date fair value. The excess of the consideration transferred over the fair value of the identifiable assets, liabilities and noncontrolling interest, if any, is recorded as goodwill. Any excess of the fair value of the identifiable assets acquired and liabilities assumed over the consideration transferred, if any, is generally recognized within earnings as of the acquisition date. The fair value s of the consideration transferred, assets, liabilities and noncontrolling interests are estimated based on one or a combination of income, cost or market approaches as determined based on the nature of the asset or liability and the level of inputs available (i.e., quoted prices in an active market, other observable inputs or unobservable inputs). To the extent our initial accounting for a business combination is incomplete at the end of a reporting period, provisional amounts are reported for those items which are incomplete. In conjunction with business combinations, we generally recognize goodwill attributable to the assembled workforce and expected synergies among the operations of the acquired entities and our existing operations. Goodwill is generally deductible for federal income tax purposes when a business combination is treated as an asset purchase and is generally not deductible for federal income tax purposes when a business combination is treated as a stock purchase. See Note 4, Business Combinations . Allowance for Credit Losses The allowance for credit losses of $24,003 a nd $22,360 at December 3 1 , 2020 and March 31, 2020, respectively, were primarily based on historical credit loss experience, current conditions and adjustments for certain asset-specific risk characteristics. The following table summarizes activity related to the allowance for credit losses:    Nine Months Ended December 31,  2020 2019  Balance at beginning of period $ 22,360 $ —  Cumulative effect of accounting change-ASU 2016-13 417 —  Acquisitions and Dispositions (1) (3,534) —  Provisions 11,623 —  Write-offs (6,863) —  Balance at end of period $ 24,003 $ — (1) Amount relates primarily to the acquisitions of eRx and PDX and sale s of Connected Analytics and Capacity Management. See Note 4, Business Combinations and Note 5, Dispositions . Leases We determine whether an arrangement contains a lease based on the conveyed rights and obligations at the inception date. If an agreement contains an operating or finance lease, at the commencement date, we record a right-of-use asset and a corresponding lease liability based on the present value of the minimum lease payments. As most of our leases do not provide an implicit borrowing rate, to determine the present value of lease payments, we use the portfolio approach and determine our hypothetical secured borrowing rate based on information available at lease commencement. Further, we make certain estimates and judgements regarding the lease term and lease payments, noted below. Leases with an initial term of 12 months or less are not recorded on the balance sheet and we recognize lease expense for these leases on a straight-line basis over the lease term. Most leases include one or more options to renew, with renewal terms that can extend the lease term from one month to one year or more. Additionally, some of our leases include an option for early termination. We include renewal periods and exclude termination periods from our lease term if, at commencement, we are reasonably certain to exercise the option. Certain of our lease agreements include rental payments that are adjusted periodically for inflation or passage of time. These step payments are included within our present value calculation as they are known adjustments at commencement. Some of our lease agreements include variable payments that are excluded from our present value calculation. For example, some of our equipment leases include a component which varies based on the asset’s use. Additionally, we have lease agreements that include lease and non-lease components, such as equipment leases, which are generally accounted for as a single lease component. For these leases, lease payments include all fixed payments stated within the contract. For other leases, such as office space, lease and non-lease components are accounted for separately. Our lease agreements do not contain any material residual value guarantees that would impact our lease payments. Recently Adopted Accounting Pronouncements Financial Instruments: Credit Losses In April 2020, we adopted Financial Accounting Standards Board (“FASB”) Accounting Standards Update (“ASU”) No. 2016-13, as amended by ASU No. 2018-19, which requires that a financial asset (or group of financial assets) measured at amortized cost be presented at the net amount expected to be collected based on relevant information about past events, including historical experience, current conditions and reasonable and supportable forecasts that affect the collectability of the reported amount. The guidance also requires us to pool assets with similar risk characteristics and consider current economic conditions when estimating losses. We adopted this standard using the modified retrospective approach and recorded a cumulative effect to retained earnings of $417 as of April 1, 2020. Fair Value Measurements In April 2020, we adopted FASB ASU No. 2018-13, which modifies the disclosure requirements for fair value measurements . Entities are no longer required to disclose the amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy, but public companies are required to disclose the range and weighted-average of significant unobservable inputs used to develop Level 3 fair value measurements. See Note 10, Fair Value Measurements . Hosting Arrangement Implementation Costs In April 2020, we adopted FASB ASU No. 2018-15, which aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. This update also requires that the effects of such capitalized costs be classified in the same respective caption in the statement of operations, balance sheet and cash flows as the underlying hosting arrangement. We adopted this standard prospectively beginning April 1, 2 020. This adoption did not have a material impact on our financial statements for the three and nine months ended December 31, 2020. Leases In April 2020, we adopted FASB ASU No. 2016-02, which created Topic 842 – Leases (“ASC 842”). The standard generally requires that all lease obligations be recognized on the balance sheet at the present value of the remaining lease payments with a corresponding right-of-use asset. In July 2018, the FASB issued ASU No. 2018-11 which provides companies with the option to apply this cumulative effect adjustment to the opening balance of retained earnings in the period of adoption. Upon adoption, we elected the transition “practical expedients” permitting us not to reassess our prior conclusions about lease identification, lease classification and initial direct costs. Additionally, we elected the practical expedient to not separate lease and non-lease components for equipment lease agreements. We adopted ASC 842 using the modified retrospective approach and recorded right-of-use assets of $111,815 and lease liabilities of $125,331 , primarily related to operating leases. The recognition of the right-of-use assets in combination with our previously recorded prepaid rent balances resulted in no requirement to adjust the opening balance of retained earnings. Our accounting for finance leases remains substantially unchanged. Adoption of ASC 842 did not materially impact our consolidated statement of operations and had no impact on our consolidated statement of cash flows. See Note 8, Leases , for additional information. London Interbank Offered Rate (LIBOR) Reform In March 2020, the FASB issued ASU No. 2020-04, which created Topic 848 – Reference Rate Reform. ASU No. 2020-04 contains optional practical expedients for reference rate reform related activities that impact debt, leases, derivatives and other contracts which may be elected over time as activities occur. Among other things, the ASU intends to ease the transition from LIBOR to an alternative reference rate. During the first quarter of fiscal year 2021, we elected to apply the hedge accounting expedients related to probability and the assessments of effectiveness for future LIBOR-indexed cash flows to assume that the index upon which future hedged transactions will be based matches the index on the corresponding derivatives. Application of these expedients preserves the presentation of derivatives consistent with past presentation. We continue to evaluate the impacts of ASU No. 2020-04 and may apply other elections as reference rate reform activities progress. Accounting Pronouncements Not Yet Adopted None that are expected to have a material impact on our financial statements.

Revenue Recognition

Revenue Recognition	9 Months Ended
	Dec. 31, 2020
Revenue Recognition [Abstract]
Revenue Recognition	3. Revenue Recognition We generate most of our solutions revenue by using technology solutions (generally Software as a Service (“SaaS”)) to provide services to our customers that automate and simplify business and administrative functions for payers, providers, pharmacies, and channel partners and through the licensing of software, software systems (consisting of software, hardware and maintenance support) and content. We recognize revenue when the customer obtains control of the good or service through satisfying a performance obligation by transferring the promised good or service to the customer. Principal Revenue Generating Products and Services Hosted solutions and SaaS - We enter into arrangements whereby we provide the customer access to a Company-owned software solution, which are generally marketed under annual and multi-year arrangements. The customer is only provided “access” (not a license) to the software application. In these arrangements, the customer does not purchase equipment nor does the customer take physical possession of the software. The related revenue is recognized ratably over the contracted term. For fixed fee arrangements, revenue recognition begins after set-up and implementation are complete. For per-transaction fee arrangements, revenue is recognized as transactions are processed beginning on the service start date. Revenue for hosted solutions and SaaS, which is included in solutions revenue, is generated by the Software and Analytics, Network Solutions, and Technology-Enabled Services segments. Transaction processing services - We provide transaction processing (such as claims processing) services to hospitals, pharmacies and health systems via a cloud-based (SaaS) platform. The promised service is to stand ready to process transactions for our customers over the contractual period on an as needed basis. Revenue related to these services is recognized over time as transactions are processed and the revenue is recognized over the individual days in which the services are performed. Revenue is recognized as solutions revenue in the Software and Analytics, Network Solutions, and Technology-Enabled Services segments, with the exception of revenue related to postage that is generated through the delivery of certain of these services. Postage revenue is discussed below and is separately presented on the consolidated statement of operations. Any fixed annual fees and implementation fees are recognized ratably over the contract period. Contingent fee services - We provide services to customers in which the transaction price is contingent on future occurrences, such as savings generated or amounts collected on behalf of our customers through the delivery of services. In some cases, we perform services in advance of invoicing the customer, thereby creating a contract asset. Revenue in these arrangements is estimated and constrained until we determine that it is probable a significant revenue reversal will not occur, and variable consideration is allocated to the performance obligation for which we earn a contingent fee. We use the expected value method when estimating variable consideration, as we have a large number of contracts with similar characteristics and consider a portfolio of data from other similar contracts to form our estimate of expected value. Revenue for contingent fee services, which is included in solutions revenue, is generated by the Software and Analytics and Technology-Enabled Services segments. Content license subscriptions and time-based software - Our content license subscriptions and time-based software arrangements provide a license to use a software for a specified period of time. At the end of the contractual period, the customer either renews the license for an additional term or ceases to use the software. Software licenses are typically delivered to the customer with functionality that allows the customer to benefit from the software on its own or together with readily available resources. As contracts for these solutions generally do not price individual components separately, we allocate the transaction price to the license and ongoing support performance obligations based on standalone selling price, primarily determined by historical value relationships between licenses and ongoing support and updates. Revenue allocated to content license subscriptions and time-based software license agreements is generally recognized at the point-in-time of delivery of the license or the content update upon transfer of control of the underlying license to the customer. Generally, software implementation fees are recognized over the implementation period through an input measure of progress method. Revenue allocated to maintenance and support is recognized ratably over the period covered by the agreements, as passage of time represents a faithful depiction of the transfer of these services. In some cases, software arrangements provide licenses to several software applications that are highly integrated with the implementation services and software updates and cannot function separately. The bundle is a single performance obligation since the individually promised goods and services are not distinct in the context of the contract because the related implementation services significantly modify and customize the software and the updates provided to the integrated software solution are critical to the software’s utility. The related revenue is recognized on a straight-line basis, ratably over the contractual term due to the frequency and criticality of the updates throughout the license period. Revenue for content license subscriptions and time-based software, which is included in solutions revenue, is generated by the Software and Analytics segment. Perpetual software licenses - Our perpetual software arrangements provide a license for a customer to use software in perpetuity. Software licenses are typically delivered to the customer with functionality from which the customer can benefit from the license on its own or together with readily available resources. Perpetual software arrangements are recognized at the time of delivery or through an input measure of progress method over the installation period if the arrangements require significant production or modification or customization of the software. Contracts accounted for through an input measure of progress method are generally measured based on the ratio of labor hours incurred to date to total estimated labor hours to be incurred. Software implementation fees are recognized as the work is performed or under the input method for perpetual software. Hardware revenue is generally recognized upon delivery. Maintenance is recognized ratably over the term of the agreement as passage of time represents a faithful depiction of the transfer of these services. License, implementation, hardware and maintenance revenue for these arrangements, which is included in solutions revenue, is generated by the Software and Analytics and Network Solutions segments. Professional services - We provide training and consulting services to our customers, and the services may be fixed fee or time and materials based. Consulting services that fall outside of the standard implementation services vary depending on the scope and complexity of the service requested by the customer. Consulting services are deemed to be capable of being distinct from other products and services, and the services are satisfied either at a point of time or over time based on delivery and are recognized as solutions revenue in the Software and Analytics and Technology-Enabled Services segments. Training services are usually provided as an optional service to enhance the customer’s experience with a software product or provides additional education surrounding the general topic of the solution. Training services are capable of being distinct from other products and services. We treat training services as a distinct performance obligation, and those services are satisfied at a point of time and recognized as solutions revenue in the Software and Analytics and Technology-Enabled Services segments. Postage Revenue Postage revenue is the result of providing delivery services to customers in our payment and communication solutions. Postage revenue is generally billed as a pass-through cost to our customers. The service is part of a combined performance obligation with the printing and handling services provided to the customer because the postage services are not distinct within the context of the contract. We present Postage Revenue separately from Solutions Revenue on the consolidated statements of operations as doing so makes the financial statements more informative for the users. The revenue related to the combined performance obligation of the postage, printing, and handling service is recognized as the transactions are processed, and the revenue is recognized over the individual days in which the services are performed. Contract Balances We generally recognize a contract asset when revenue is recognized in advance of invoicing on a customer contract, unless the right to payment for that revenue is unconditional (i.e. requiring no further performance and only the passage of time). If a right to payment is determined to meet the criteria to be considered 'unconditional', then we will recognize a receivable. We did no t recognize any impairment loss on accounts receivable or contract assets during the three and nine months ended December 31, 2020. Change Healthcare Inc. did not have accounts receivable prior to the Merger. We record deferred revenue when billings or payments are received from customers in advance of our performance. Deferred revenue is generally recognized when transfer of control to customers occurs. The deferred revenue balance is driven by multiple factors, including the frequency of renewals, invoice timing, invoice duration and fair value adjustments as a result of the Merg er. As of December 3 1 , 2020, we expect 94% of the deferred revenue balance to be recognized in one year or less, and approximately $245,760 of the beginning period balance was recognized during the nine months ended December 31, 2020. Costs to Obtain or Fulfill a Contract At December 3 1 , 2020, we had capitalized costs to obtain a contract of $4,339 in prepaid and other current assets and $27,502 in other noncurrent assets. At December 31, 2020, we had capitalized costs to fulfill a contract of $3,287 in prepaid and other current assets and $18,072 in other noncurrent assets . Amortization of such capitalized costs to obtain or fulfill a contract were immaterial for the three and nine months ended December 31, 2020. Change Healthcare Inc. did not have costs to obtain or fulfill a contract prior to the Merger, and therefore did not record amortization of such capitalized costs during the three and nine months ended December 3 1 , 2019. Remaining Performance Obligations The aggregate amount of transaction price allocated to performance obligations that are unsatisfied (or partially unsatisfied) for executed contracts includes deferred revenue and other revenue yet to be recognized from non-cancellable contracts. As of December 31, 2020, the total remaining performance obligations approximated $1,507,154 , of which approximately 49% is expected to be recognized over the next twelve months, and the remaining 51% thereafter. In this balance, we do not include the value of unsatisfied performance obligations related to those contracts for which we recognize revenue at the amount for which we have the right to invoice for services performed. Additionally, this balance does not include revenue related to performance obligations that are part of a contract with an original expected duration of one year or less. Lastly, this balance does not include variable consideration allocated to the individual goods or services in a series of distinct goods or services that are substantially the same and that have the same pattern of transfer to the customer. Examples includes variable fees associated with transaction processing and contingent fee services. Disaggregated Revenue We disaggregate the revenue from contracts with customers by operating segment as we believe doing so best depicts how the nature, amount, timing and uncertainty of revenues are affected by economic factors. See Note 19 , Segment Reporting, for the total revenue disaggregated by operating segment for the three and nine months ended December 31, 2020. In addition to disaggregating revenue by operating segment, we disaggregate revenue between revenue that is recognized over time and revenue that is recognized at a point in time. Approximately 98% and 96% of revenue was recognized over time and approximatel y 2% and 4% of revenue was recognized at a point in time for the three and nine months ended December 3 1 , 2020, respectively. 

Business Combinations

Business Combinations	9 Months Ended
	Dec. 31, 2020
Business Combinations [Abstract]
Business Combinations	4. Business Combinations Fiscal Year 2021 Transactions eRx Network Holdings, Inc. On May 1, 2020, we exercised our option to purchase and completed the acquisition of 100% of the ownership interest in eRx Network Holdings, Inc. (“eRx”), a leading provider in comprehensive, innovative and secure data-driven solutions for pharmacies. At the time of the acquisition, all outstanding eRx equity awards were canceled and holders of eRx stock options and vested eRx stock appreciation rights were able to elect to receive consideration in the form of a cash payment or vested stock appreciation rights of the Company. See Note 17, Incentive Compensation Plans , for additional information. Prior to the acquisition, we held an option to purchase eRx which we accounted for as an equity investment. Therefore, our acquisition of eRx was accounted for as a business combination achieved in stages under the acquisition method in accordance with Accounting Standards Codification 805, Business Combinations (“ASC 805”). Accordingly, we remeasured our business purchase option to fair value and recognized a loss of $6,000 which is recorded in Other, net on our consolidated statement of operations. The following table summarizes information related to this acquisition as of the acquisition date. The fair values of the assets acquired and the liabilities assumed were determined based on information available to the Company using primarily an income-based approach. During the second and third quarter s of fiscal year 2021, we continued to make purchase price allocation adjustments to refine the fair value of assets acquired and liabilities assumed , including goodwill. These refinements primarily included an increase to the determined fair value of customer relationships and deferred tax liabilities and a decrease to the determined fair value of technology-based intangible assets. There were no material impacts to the consolidated statement of operations as a result of the adjustments. We consider our accounting for the assets acquired and liabilities assumed in the eRx acquisition to be complete.   eRx  Cash paid at closing $ 249,359  Fair value of eRx purchase option 140,500  Fair value of vested stock appreciation rights 5,097  Cash paid for canceled eRx equity awards 5,891  Total Consideration Fair Value at Acquisition Date $ 400,847   Allocation of the Consideration Transferred:  Cash $ 54,108  Accounts receivable, net of allowance of $326 12,747  Prepaid expenses and other current assets 609  Goodwill 225,156  Identifiable intangible assets:  Customer relationships (life 17 years) 131,200  Internally developed technology (life 9 - 12 years) 29,700  Other noncurrent assets 20  Accounts payable (2,543)  Accrued expenses and other current liabilities (10,933)  Deferred income tax liabilities (39,217)  Total consideration transferred $ 400,847 The goodwill recognized, all of which is assigned to the Network Solutions segment, is primarily attributable to expected synergies of the combined businesses and the acquisition of an assembled workforce knowledgeable of the healthcare and information technology industries. The goodwill is not expected to be deductible for tax purposes. See Note 6, Goodwill . Acquisition costs related to the purchase of eRx were not material. PDX, Inc. On June 1, 2020, we completed the cash purchase of 100% of the ownership interest in PDX, Inc. (“PDX”), a company focused on delivering patient centric and innovative technologies for pharmacies and health systems. We accounted for this transaction as a business combination using the acquisition method. The fair values of the assets acquired and the liabilities assumed were determined based on information available to the Company using primarily an income-based approach . During the second quarter of fiscal year 2021, we continued to make purchase price allocation adjustments to refine the fair value of assets acquired, including goodwill. These refinements primarily included an increase to the determined fair value of customer relationships and decreases to the determined fair values of technology-based intangible assets and deferred revenue. There were no material impacts to the consolidated statement of operations as a result of the adjustments . Additional information is being gathered to finalize the amounts with respect to deferred taxes. Accordingly, the measurement of the deferred tax assets acquired and deferred tax liabilities assumed may change upon finalization of the Company’s valuations and completion of the purchase price allocation, both of which are expected to occur no later than one year from the acquisition date. We consider our accounting for the other assets acquired and liabilities assumed in the PDX acquisition to be complete. After customary working capital adjustments, transaction fees and other adjustments, the total consideration fair value at the acquisition date was $198,291 . The following table summarizes the allocation of consideration transferred:    PDX  Cash $ 755  Accounts receivable, net of allowance of $1,092 5,739  Prepaid expenses and other current assets 2,251  Property and equipment 840  Goodwill 98,830  Identifiable intangible assets:  Customer relationships (life 18 years) 74,300  Technology-based intangible assets (life 10 - 11 years) 25,300  Other noncurrent assets 690  Accounts payable (3,882)  Deferred revenue, current (2,946)  Accrued expenses and other current liabilities (3,364)  Other noncurrent liabilities (222)  Total consideration transferred $ 198,291 The goodwill recognized, all of which is assigned to the Network Solutions segment, is primarily attributable to expected synergies of the combined businesses and the acquisition of an assembled workforce knowledgeable of the healthcare and information technology industries. The goodwill is expected to be deductible for tax purposes. See Note 6, Goodwill . Acquisition costs related to the purchase of PDX were not material. Nucleus.io In August 2020, we completed the acquisition of Nucleus.io, a leader in the development of advanced, fully enabled, cloud-native imaging and workflow technology. We acquired Nucleus.io for total consideration of $35,120 and accounted for the acquisition as a business combination. The consideration transferred was primarily allocated to technology-based intangible assets of $11,700 and goodwill of $22,341 . The goodwill recognized is assigned to the Software and Analytics segment. The preliminary value s of the consideration transferred, assets acquired and liabilities assumed in the acquisition, including the related tax effects, are subject to change upon receipt of a final valuation and working capital settlement. Fiscal Year 2020 Transactions The Merger On March 10, 2020, the Company combined with SpinCo in a two-step all-stock “Reverse Morris Trust” transaction that involved a separation of SpinCo from McKesson followed by the merger of SpinCo with and into the Company, with the Company as the surviving company. As a result of the Merger, the Joint Venture became a wholly owned subsidiary of the Company. McKesson accepted 15,426,537 shares of its own common stock, par value $0.01 in exchange for all 175,995,192 issued and outstanding shares of SpinCo common stock, par value $0.001 per share (the “SpinCo Common Stock”). All shares of SpinCo Common Stock were then converted into an equal number of shares of common stock of the Company, par value $0.001 , which the Company issued to the former holders of SpinCo Common Stock, together with cash in lieu of any fractional shares. Prior to the Merger, we accounted for our investment in the Joint Venture under the equity method of accounting. Therefore, the acquisition of control of the Joint Venture was accounted for as a business combination achieved in stages under the acquisition method in accordance with ASC 805. Accordingly, we remeasured our previously held equity interest in the Joint Venture to fair value by reference to the publicly traded price of the common shares issued to SpinCo shareholders in exchange for the remaining 58% equity interest in the Joint Venture. Upon remeasurement, we recognized a loss on investment of $230,229 . The loss represents the amount by which the carrying value of our investment in the Joint Venture exceeded the fair value of our 42% interest immediately prior to the Merger. The fair values of the assets acquired and the liabilities assumed were determined based on information available to the Company. Additional information is being gathered to finalize the provisional measurements with respect to deferred taxes. Accordingly, the measurement of the deferred tax assets acquired and deferred tax liabilities assumed may change upon finalization of the Company’s valuations and completion of the purchase price allocation, both of which are expected to occur no later than one year from the acquisition date. During the first quarter of fiscal year 2021, we increased the estimated fair value of our deferred tax liability by $1,604 which also impacted goodwill. During the third quarter of fiscal year 2021, we made additional adjustments decreasing our deferred tax liability and goodwill by $4,692 . There were no impacts to the consolidated statement of operations as a result of the adjustments. We consider our accounting for the other assets acquired and liabilities assumed in the Merger to be complete. The following table summarizes information related to this acquisition as of the acquisition date :    Net Assets acquired  Cash $ 330,665  Accounts receivable, net of allowance of $22,059 718,895  Contract assets 132,704  Prepaid and other current assets 115,265  Investment in business purchase option 146,500  Property and equipment, net 206,751  Goodwill 4,357,560  Other noncurrent assets 169,539  Identified intangible assets:  Customer relationships (life 12 - 16 years) 3,056,000  Tradenames (life 18 years) 146,000  Technology-based intangible assets (life 6 - 12 years) 1,188,000  Drafts and accounts payable (60,637)  Accrued expenses (559,456)  Deferred revenue, current (292,528)  Current portion of long-term debt (28,969)  Other current liabilities (22,732)  Long-term debt, excluding current portion (4,713,565)  Deferred income tax liabilities (574,988)  Tax receivable agreement obligations with related parties (176,586)  Other long-term liabilities (102,675)  Net Assets acquired $ 4,035,743   Summary of purchase consideration:  Fair value of shares issued to SpinCo shareholders  ( 175,995,192 shares at $12.47 per share):  Common Stock, $0.001 par value $ 176  Additional paid-in capital 2,194,484  Fair value of Joint Venture equity interest previously held 1,589,040  Fair value of Joint Venture equity interest previously held through TEUs 216,764  Settlement of dividend receivable 42,778  Repayment of advances to member (7,499)  Purchase consideration $ 4,035,743 The goodwill recognized in the Merger is primarily attributable to expected synergies of the combined businesses and the acquisition of an assembled workforce knowledgeable of the healthcare and information technology industries in which we operate. The majority of the goodwill is not expected to be deductible for tax purposes. Acquisition costs related to the Merger were not material . 

Dispositions

Dispositions	9 Months Ended
	Dec. 31, 2020
Dispositions [Abstract]
Dispositions	5. Dispositions Connected Analytics On May 1, 2020, we completed the sale of our Connected Analytics business, which was included in our Software and Analytics segment, for total consideration of $55,000 , subject to a customary working capital adjustment, including a $25,000 note receivable from the buyer which was recorded within Other noncurrent assets, net on the consolidated balance sheet. The net book value of the Connected Analytics business prior to the sale was $22,619 which includes primarily net accounts receivable of $16,325 , goodwill of $21,705 and deferred revenue of $17,133 . In connection with this transaction, we recognized a pre-tax gain on disposal of $24,170 which is included within Gain on sale of businesses on the consolidated statement of operations. In July 2020, we received $25,000 plus interest from the buyer in satisfaction of the outstanding note receivable. Capacity Management On December 2, 2020, we completed the sale of our Capacity Management business, which was included in our Software and Analytics segment, for total consideration of $67,500 , subject to a customary working capital adjustment. The net book value of the Capacity Management business prior to the sale was $31,599 which includes primarily net accounts receivable of $14,999 , goodwill of $26,944 and deferred revenue of $15,230 . In connection with this transaction, we recognized a pre-tax gain on disposal of $32,655 which is included within Gain on sale of businesses on the consolidated statement of operations. 

Goodwill

Goodwill	9 Months Ended
	Dec. 31, 2020
Goodwill [Abstract]
Goodwill	6. Goodwill The following table presents the changes in the carrying amount of goodwill:    Software and Analytics Network Solutions Technology-Enabled Services Total  Balance at March 31, 2020 $ 1,770,118 $ 1,645,831 $ 379,376 $ 3,795,325  Acquisitions (1) 22,341 323,986 — 346,327  Dispositions (51,136) — — (51,136)  Effects of foreign currency 17,926 — — 17,926  Adjustments (2) (1,637) (1,081) (311) (3,029)  Balance at December 31, 2020 $ 1,757,612 $ 1,968,736 $ 379,065 $ 4,105,413 (1) Amounts relate primarily to the acquisitions of eRx, PDX and Nucleus.io. See Note 4, Business Combinations . (2) Amounts relate to fair value adjustments to the assets acquired and liabilities assumed in the Merger. See Note 4, Business Combinations . 

Equity Method Investment in Cha

Equity Method Investment in Change Healthcare LLC	9 Months Ended
	Dec. 31, 2020
Equity Method Investment in Change Healthcare LLC [Abstract]
Equity Method Investment in Change Healthcare LLC	7. Equity Method Investment in Change Healthcare LLC Prior to the Merger, the Company accounted for its investment in the Joint Venture using the equity method of accounting. During the three and nine months ended December 3 1 , 2019, the Company recorded a proportionate share of the loss from this investment of $8,764 and $104,497 , respectively , which included transaction and integration expenses incurred by the Joint Venture and basis adjustments, including amortization expenses, associated with equity method intangible assets. These amounts are in Loss from Equity Method Investment in the Joint Venture in the consolidated statements of operations. Following completion of the Merger, we consolidat e the Joint Venture and no longer account for our ownership interest as an equity method investment. Summarized statement of operations information of the Joint Venture prior to the Merger is as follows:     Three Months Ended Nine Months Ended  December 31, 2019 December 31, 2019  Total revenue $ 808,226 $ 2,459,593  Cost of operations (exclusive of depreciation and amortization) $ 339,413 $ 998,943  Customer postage $ 55,693 $ 171,288  Net income (loss) $ 31,191 $ 102,973  

Leases

Leases	9 Months Ended
	Dec. 31, 2020
Leases [Abstract]
Leases	8. Leases We lease office space, other facilities, office equipment for internal use, vehicles and bulk invoice pricing and mailing related equipment for customer solutions. Our lease portfolio includes both operating and finance leases with original terms ranging from one to 15 years. Statement of Operations Information The components of lease cost are as follows:    Three Months Ended Nine Months Ended  Statement of Operations Location December 31, 2020 December 31, 2020  Operating lease cost (1) $ 9,951 $ 32,109  Finance lease cost  Amortization expense Depreciation and amortization 110 312  Interest expense Interest expense, net 35 102  Short-term lease cost (1) 261 747  Variable lease cost (1) 1,524 5,275  Sublease income Other, net (172) (834)  Total lease cost $ 11,709 $ 37,711 (1) Cost classification varies depending on the leased asset. Costs are primarily included within s ales, marketing, general and administrative and cost of operations . Balance Sheet Information Right-of-use assets and lease liabilities are as follows:    Balance Sheet Location December 31, 2020  Right-of-use assets  Operating leases Operating lease right-of-use assets, net $ 99,258  Finance leases Property and equipment, net 1,975  Total right-of-use assets $ 101,233   Lease liabilities  Current liabilities  Operating leases Current portion of operating lease liabilities $ 30,813  Finance leases Current portion of long-term debt 577  Noncurrent liabilities  Operating leases Long-term operating lease liabilities 80,789  Finance leases Long-term debt, excluding current portion 1,373  Total lease liabilities $ 113,552 Cash Flow Information Supplemental cash flow information is as follows:    Nine Months Ended December 31, 2020  Operating Leases Finance Leases  Cash paid for amounts included in the measurement of lease liabilities  Operating cash flows $ 31,331 $ 102  Financing cash flows $ — $ 490  Non-cash activities  Right-of-use assets obtained in exchange for lease liabilities ( 1) $ 11,846 $ 363 (1) Amount s exclude the impact of adopting ASC 842. See Note 2, Significant Accounting Policies . Maturity of Lease Liabilities Maturities of lease liabilities by fiscal year as of December 31, 2020 are as follows:    Operating Leases Finance Leases Total  Remainder of 2021 $ 10,022 $ 183 $ 10,205  2022 36,697 664 37,361  2023 27,580 485 28,065  2024 19,037 468 19,505  2025 14,011 390 14,401  2026 and thereafter 25,501 — 25,501  Total lease liabilities, undiscounted 132,848 2,190 135,038  Less: Imputed interest 21,246 240 21,486  Total lease liabilities $ 111,602 $ 1,950 $ 113,552 Maturities of lease liabilities by fiscal year as of March 31, 2020 were as follows:    Operating Leases Finance Leases Total  2021 $ 40,476 $ 468 $ 40,944  2022 34,750 468 35,218  2023 23,761 468 24,229  2024 15,393 468 15,861  2025 10,780 390 11,170  2026 and thereafter 15,850 — 15,850  Total lease liabilities, undiscounted $ 141,010 $ 2,262 $ 143,272 Other Information Other information related to our leases as of December 31, 2020 is as follows:    Operating Leases Finance Leases  Weighted-average remaining lease term 4.79 years 3.70 years  Weighted-average discount rate 7.39 % 6.53 % 

Interest Rate Cap Agreements

Interest Rate Cap Agreements	9 Months Ended
	Dec. 31, 2020
Interest Rate Cap Agreements [Abstract]
Interest Rate Cap Agreements	9. Interest Rate Cap Agreements Risk Management Objective of Using Derivatives We are exposed to certain risks arising from both our business operations and economic conditions. We principally manage exposures to a wide variety of business and operational risks through management of core business activities. We manage economic risks, including interest rate, liquidity and credit risk, primarily by managing the amount, sources and duration of debt funding and the use of derivative financial instruments. Specifically, we enter into derivative financial instruments to manage differences in the amount, timing and duration of known or expected cash receipts and known or expected cash payments principally related to existing borrowings. Cash Flow Hedges of Interest Rate Risk Our objectives in using interest rate derivatives are to add stability to interest expense and to manage exposure to interest rate movements. To accomplish these objectives, we primarily use interest rate cap agreements as part of our interest rate risk management strategy. Payments and receipts related to interest rate cap agreements are included in cash flows from financing activities in the consolidated statements of cash flows. In August 2018, the Joint Venture executed annuitized interest rate cap agreements with notional amounts of $500,000 , accreting to $1,500,000 to limit the exposure of the variable component of interest rates under the Term Loan Facility or future variable rate indebtedness to a maximum of 1.0% . The interest rate cap agreements became effective August 31, 2018 , accreted to $1,500,000 in March 2020 and expire December 31, 2021 . Upon completion of the Merger, these agreements were redesignated as cash flow hedges of the Company. In March 2020, we executed additional annuitized interest rate cap agreements with notional amounts totaling $1,000,000 to limit the exposure of the variable component of the interest rates under the Term Loan Facility or future variable rate indebtedness to a maximum of 1.0% . Each interest rate cap agreement became effective March 31, 2020 and expires March 31, 2024 . At December 31, 2020, each of our outstanding interest rate cap agreements were designated as cash flow hedges of interest rate risk and were determined to be highly effective. Amounts reported in accumulated other comprehensive income related to derivatives will be reclassified to interest expense as interest payments are made on our variable-rate debt. We estimate that $2,005 w ill be reclassified as an increase to interest expense within one year. Fair Value The fair value of derivative instruments at December 31, 2020 and March 31, 2020 is as follows:    Fair Values of Derivative Financial Instruments  Asset (Liability)  Derivative financial instruments designated as hedging instruments: Balance Sheet Location December 31, 2020 March 31, 2020  Interest rate cap agreements Accrued expenses (28,985) (28,131)  Interest rate cap agreements Other long-term liabilities (3,288) (19,277)  Total $ (32,273) $ (47,408) See Note 10, Fair Value Measurements , for additional information. Effect of Derivative Instruments on the Statement of Operations The effect of the derivative instruments on the consolidated statements of operations is as follows:    Three Months Ended December 31, Nine Months Ended December 31,  Derivative financial instruments in cash flow hedging relationships: 2020 2019 2020 2019  Gain/(loss) related to derivative financial instruments recognized in other comprehensive income (loss) $ (383) $ — $ (7,119) $ —  Gain/(loss) related to portion of derivative financial instruments reclassified from accumulated other comprehensive income (loss) to interest expense $ 302 $ — $ 858 $ — Credit Risk-Related Contingent Features We have agreements with each of our derivative counterparties providing that if we default on any of our indebtedness, including a default where repayment of the indebtedness has not been accelerated by the lender, then we also could be declared in default on our derivative obligations. As of December 31, 2020, the termination value of derivative financial instruments in a net liability position, which includes accrued interest but excludes any adjustment for nonperformance risk, was $32,953 . If we had breached any of these provisions at December 31, 2020, we could have been required to settle our obligations under the agreements at this termination value. We do not offset any derivative financial instruments and the derivative financial instruments are not subject to collateral posting requirements. 

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Dec. 31, 2020
Fair Value Measurements [Abstract]
Fair Value Measurements	10 . Fair Value Measurements Assets and Liabilities Measured at Fair Value on a Recurring Basis Assets and liabilities that are measured at fair value on a recurring basis consist of derivative financial instruments and contingent consideration obligations. The following table s summarize these items, aggregated by the level in the fair value hierarchy within which those measurements fall:    Quoted in Significant Other Significant  Balance at Identical Markets Observable Inputs Unobservable Inputs  Description December 31, 2020 (Level 1) (Level 2) (Level 3)  Interest rate cap agreements $ (32,273) $ — $ (32,273) $ —  Contingent consideration obligation — — — —  Total $ (32,273) $ — $ (32,273) $ —     Quoted in Significant Other Significant  Balance at Identical Markets Observable Inputs Unobservable Inputs  Description March 31, 2020 (Level 1) (Level 2) (Level 3)  Interest rate cap agreements $ (47,408) $ — $ (47,408) $ —  Contingent consideration obligation (3,000) — — (3,000)  Total $ (50,408) $ — $ (47,408) $ (3,000)  Derivative Financial Instruments The valuation of our derivative financial instruments is determined using widely accepted valuation techniques, including a discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivative, including the period to maturity, and uses observable market-based inputs, including interest rate curves. The fair value of the interest rate cap agreements is determined using the market standard methodology of netting the discounted future fixed cash payments (or receipts) and the discounted expected variable cash receipts (or payments) using the overnight index swap rate as the discount rate. We incorporate credit valuation adjustments to appropriately reflect both our own nonperformance risk and the respective counterparty’s nonperformance risk in the fair value measurements. In adjusting the fair value of our derivative contracts for the effect of nonperformance risk, we considered the impact of netting and any applicable credit enhancements and measured the credit risk of our derivative financial instruments that are subject to master netting agreements on a net basis by counterparty portfolio. Although we have determined that the majority of the inputs used to value our derivatives fall within Level 2 of the fair value hierarchy, the credit valuation adjustments utilize Level 3 inputs to evaluate the likelihood of both our own default and counterparty default. As of December 3 1 , 2020, we determined that the credit valuation adjustments are not significant to the overall valuation of the derivatives. As a result, the derivative valuations are classified in Level 2 of the fair value hierarchy. Contingent Consideration Prior to December 31, 2020, t he valuation of our contingent consideration obligations was determined using a discounted cash flow method that involved a Monte Carlo simulation. This analysis reflects the contractual terms of the purchase agreements (i.e., minimum and maximum payments, length of earn-out periods, manner of calculating amounts due, etc.) and utilizes assumptions with regard to future cash flows that were determined using a Monte Carlo simulation which were then discounted to present value using an appropriate discount rate. Significant increases with respect to assumptions as to future revenue would have resulted in a higher fair value measurement while an increase in the discount rate would have resulted in a lower fair value measurement. The measurement period ended December 31, 2020, and the Company determined no obligations remained. As such, the contingent consideration liability was reduced to zero as of December 31, 2020. The table below presents a reconciliation of the fair value of the liabilities that use significant unobservable inputs (Level 3):     Three Months Ended December 31, Nine Months Ended December 31,  2020 2019 2020 2019  Balance at beginning of period $ — $ — $ (3,000) $ —  Gain/(loss) included in contingent consideration — — 3,000 —  Balance at end of period $ — $ — $ — $ —  Assets and Liabilities Measured at Fair Value upon Initial Recognition The carrying amounts and fair values of financial instruments held as of December 31, 2020 and March 31, 2020 were as follows:     December 31, 2020 March 31, 2020  Carrying Amount Fair Value Carrying Amount Fair Value  Cash and cash equivalents $ 137,357 $ 137,357 $ 410,405 $ 410,405  Accounts receivable $ 697,948 $ 697,948 $ 740,105 $ 740,105  Investment in business purchase option $ — $ — $ 146,500 $ 146,500  Senior Credit Facilities (Level 2) $ 3,447,156 $ 3,529,963 $ 3,682,457 $ 3,452,687  Senior Notes (Level 2) $ 1,317,689 $ 1,348,188 $ 997,772 $ 950,000  Debt component of tangible equity units (Level 2) $ 24,268 $ 24,801 $ 35,431 $ 34,806 Additionally, the assets acquired and liabilities assumed as part of business acquisitions were recorded at fair value upon initial recognition. See Note 4, Business Combinations , for additional information.

Long-Term Debt

Long-Term Debt	9 Months Ended
	Dec. 31, 2020
Long-Term Debt [Abstract]
Long-Term Debt	11. Long-Term Debt Our long-term indebtedness is comprised of a senior secured term loan facility (the “Term Loan Facility”), a revolving credit facility (the “Revolving Facility”; together with the Term Loan Facility, the “Senior Credit Facilities”), and 5.75% senior notes due 2025 (the “Senior Notes”). Long-term debt as of December 31, 2020 and March 31, 2020, consisted of the following:    December 31, 2020 March 31, 2020  Senior Credit Facilities  $5,100,000 Term Loan Facility, due March 1, 2024 , net of unamortized discount of $96,094 and $125,793 at December 31, 2020 and March 31, 2020, respectively (effective interest rate of 4.42% and 4.42% , respectively) $ 3,447,156 $ 3,682,457  $785,000 Revolving Facility, expiring July 3, 2024 , and bearing interest at a variable interest rate (1) — 250,000  Senior Notes  $1,325,000 5.75% Senior Notes due March 1, 2025 , net of unamortized discount of $7,311 and $2,228 at December 31, 2020 and March 31, 2020, respectively (effective interest rate of 5.90% and 5.80% , respectively) 1,317,689 997,772  Tangible Equity Unit Senior Amortizing Note  $47,367 Senior Amortizing Notes due June 30, 2022 , net of unamortized discount of $405 and $842 at December 31, 2020 and March 31, 2020, respectively (effective interest rate of 7.44% and 7.44% , respectively) 24,268 35,431  Other 28,734 23,413  Less current portion (37,019) (278,779)  Long-term debt $ 4,780,828 $ 4,710,294 (1) The weighted average interest rate at March 31, 2020 was 3.25 %. Senior Credit Facilities In June 2020, we repaid our outstanding Revolving Facility balance of $250,000 . The Revolving Facility has a total borrowing capacity of $785,000 less outstanding letters of credit which totaled $6,194 and $5,118 at December 31, 2020 and March 31, 2020, respectively, leaving $778,806 and $529,882 available for borrowing, respectively. Senior Notes Issuance In April 2020, we issued an additional $325,000 aggregate principal amount of 5.75% Senior Notes due 2025 (the “Notes”) and incurred issuance costs of $5,364 . The Notes were issued as part of the same series as the $1,000,000 Senior Notes issued in February 2017. Term Loan Repayments In the second quarter of fiscal year 2021, we repaid $50,000 on our Term Loan Facility and recognized a loss on extinguishment of $1,489 in our consolidated statement of operations. In the third quarter of fiscal year 2021, we repaid an additional $215,000 and recognized a loss on extinguishment of $6,145 in our consolidated statement of operations.

Net Income (Loss) Per Share

Net Income (Loss) Per Share	9 Months Ended
	Dec. 31, 2020
Net Income (Loss) Per Share [Abstract]
Net Income (Loss) Per Share	1 2 . Net Income (Loss) Per Share The following table sets forth the computation of basic and diluted net income (loss) per share of common stock:    Three Months Ended December 31, Nine Months Ended December 31,  2020 2019 2020 2019  Numerator:  Net income (loss) $ 2,196 $ 50,735 $ (99,120) $ (80,716)  Denominator:  Weighted average common shares outstanding 304,547,891 124,962,970 304,104,388 108,371,642  Minimum shares issuable under purchase contracts 16,465,704 18,429,325 16,465,704 12,286,217  Total weighted average shares outstanding 321,013,595 143,392,295 320,570,092 120,657,859  Basic net income (loss) per share $ 0.01 $ 0.35 $ (0.31) $ (0.67)  Diluted net income per share:  Numerator:  Net income (loss) $ 2,196 $ 50,735 $ (99,120) $ (80,716)  Denominator:  Number of shares used in basic computation 321,013,595 143,392,295 320,570,092 120,657,859  Weighted average effect of dilutive securities  Dilutive shares issuable under purchase contracts — 1,450,910 — —  Time-Vesting Options 932,344 1,059,868 — —  Restricted Share Units 2,753,810 289,537 — —  Deferred Stock Units 95,624 9,250 — —  Employee Stock Purchase Program Shares 20,151 — — —  324,815,524 146,201,860 320,570,092 120,657,859  Diluted net income (loss) per share $ 0.01 $ 0.35 $ (0.31) $ (0.67)  Due to their antidilutive effect, the following securities have been excluded from diluted net income (loss) per share:          Three Months Ended December 31, Nine Months Ended December 31,  2020 2019 2020 2019  Dilutive shares issuable under purchase contracts — — 1,579,991 1,712,220  Time-Vesting Options — — 766,432 1,290,327  Restricted Share Units — — 2,360,586 605,830  Deferred Stock Units — — 81,983 6,167  

Tax Receivable Agreements

Tax Receivable Agreements	9 Months Ended
	Dec. 31, 2020
Tax Receivable Agreements [Abstract]
Tax Receivable Agreements	1 3 . Tax Receivable Agreements Upon the consummation of the Merger, we assumed obligations related to certain tax receivable agreements (collectively, the “tax receivable agreements”) entered into by the Joint Venture with its current and former owners. Depending on whether the respective tax receivable agreements were assumed as part of the Merger or became effective after the Merger, the liabilities related to the tax receivable agreements are subject to differing accounting models as explained below. Under the tax receivable agreements assumed in connection with the Merger, we are obligated to make payments to certain former stockholders as well as to affiliates of The Blackstone Group, Inc. , some of whom are considered related parties . The cash payments made are equal to 85% of the applicable cash savings realized or expected to be realized for the applicable tax receivable agreements . The tax receivable agreements were measured at their fair value as part of the Merger and are recognized at their initial fair value plus recognized accretion to date on the consolidated balance sheet. Accretion recorded during the period pertaining to related party payments is recorded separately to Accretion and changes in estimate with related parties, net , whereas non-related party accretion is recorded within Sales, marketing, general and administrative in the consolidated statement of operations. As the payments are due to both current and former owners, we have separately presented the estimated aggregated payments due to related parties in future fiscal years in the table below. McKesson Tax Receivable Agreement In connection with the closing of the Merger , we along with the Joint Venture, the subsidiaries of McKesson that serve d as members of the Joint Venture (“McK Members”), and McKesson entered into a tax receivable agreement (the “McKesson Tax Receivable Agreement”). The McKesson Tax Receivable Agreement generally requires payment to affiliates of McKesson of 85% of certain cash tax savings realized (or, in certain circumstances, deemed to be realized) in periods ending on or after the date on which McKesson ceases to own at least 20% of the Joint Venture as a result of (i) certain amortizable tax basis in assets transferred to the Joint Venture at the Contribution Agreement Closing and (ii) imputed interest deductions and certain other tax attributes arising from payments under the McKesson Tax Receivable Agreement. Following the McKesson exit and based on anticipated amortization allocations, we recorded an obligation for the McKesson Tax Receivable estimated payments, which represents a loss contingency under ASC 450 and is included in the other long-term liabilities on the consolidated balance sheet. Future changes in this value will be reflected within pretax income or loss. Based on facts and circumstances at December 3 1 , 2020, we estimate the aggregate payments due under our tax receivable agreements in future fiscal years to be as follows:   Related Party Tax Receivable Agreements McKesson Tax Receivable Agreement Other Tax Receivable Agreements Total  Remainder of 2021 $ — $ — $ — $ —  2022 11,606 128 10,788 22,522  2023 11,349 35,992 10,722 58,063  2024 23,421 7,368 13,549 44,338  2025 50,772 23,836 20,004 94,612  Thereafter 83,221 92,192 61,192 236,605  Gross expected payments 180,369 159,516 116,255 456,140  Less: Amounts representing discount (69,149) — (36,561) (105,710)  Total tax receivable agreement obligation 111,220 159,516 79,694 350,430  Less: Current portion due (included in accrued expenses) (11,606) (128) (10,788) (22,522)  Tax receivable agreement long-term obligation $ 99,614 $ 159,388 $ 68,906 $ 327,908 The timing and/or amount of aggregate payments due may vary based on a number of factors, including the amount of net operating losses and income tax rates . 

Income Taxes

Income Taxes	9 Months Ended
	Dec. 31, 2020
Income Taxes [Abstract]
Income Taxes	1 4 . Income Taxes The following table summarizes income tax information:    Three Months Ended December 31, Nine Months Ended December 31,  2020 2019 2020 2019  Income tax provision (benefit) $ (4,562) $ 15,240 $ (31,411) $ (564)  Effective tax rate 192.8% 23.1% 24.1% 0.7% Three and Nine Months Ended December 3 1 , 2020 and 2019 Fluctuations in our reported income tax rates from the statutory rate are primarily due to the impacts of our acquisition and divestiture activity, benefits recognized as a result of certain incentive tax credits resulting from research and experimental expenditures, and discrete items recognized in the three and nine months ended December 31, 2020. For the three and nine months ended December 31, 2019, fluctuations in our reported income tax rates from the statutory rate are primarily due to benefits recognized as a result of certain incentive tax credits resulting from research and experimental expenditures and the impacts of discrete items. 

Legal Proceedings

Legal Proceedings	9 Months Ended
	Dec. 31, 2020
Legal Proceedings [Abstract]
Legal Proceedings	15. Legal Proceedings We are subject to various claims with customers and vendors, pending and potential legal actions for damages, investigations relating to governmental laws and regulators and other matters arising out of the normal conduct of our business. Government Subpoenas and Investigations From time to time, we receive subpoenas or requests for information from various government agencies. We generally respond to such subpoenas and requests in a cooperative, thorough and timely manner. These responses sometimes require time and effort and can result in considerable costs. Such subpoenas and requests also can lead to the assertion of claims or the commencement of civil or criminal proceedings against us and other members of the health care industry, as well as to settlements. Other Matters In the ordinary course of business, we are involved in various claims and legal proceedings. While the ultimate resolution of these matters has yet to be determined, we do not believe that it is reasonably possible that their outcomes will have a material adverse effect on our consolidated financial position, results of operations, or liquidity. 

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	9 Months Ended
	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Abstract]
Accumulated Other Comprehensive Income (Loss)	16. Accumulated Other Comprehensive Income (Loss) The following is a summary of the accumulated other comprehensive income (loss) activity for the nine months ended December 31, 2020 and 2019. Prior to the Merger, the activity in accumulated other comprehensive income (loss) reflects the proportionate share of the Joint Venture’s accumulated other comprehensive income (loss), net of taxes.     Available Foreign Currency Accumulated Other  For Sale Translation Cash Flow Comprehensive  Debt Security Adjustment Hedge Income (Loss)  Balance at March 31, 2019 $ — $ (1,565) $ (1,691) $ (3,256)  Cumulative effect of accounting change of the Joint Venture-ASU 2018-02 — — 422 422  Change associated with foreign currency translation — 226 — 226  Change associated with current period hedging — — (5,117) (5,117)  Reclassification into earnings — — (314) (314)  Balance at June 30, 2019 $ — $ (1,339) $ (6,700) $ (8,039)  Unrealized gain (loss) on available for sale debt securities of the Joint Venture 1,173 — — 1,173  Change associated with foreign currency translation — 1,583 — 1,583  Change associated with current period hedging — — (1,509) (1,509)  Reclassification into earnings — — 199 199  Balance at September 30, 2019 $ 1,173 $ 244 $ (8,010) $ (6,593)  Unrealized gain (loss) on available for sale debt securities of the Joint Venture 134 — — 134  Change associated with foreign currency translation — 1,728 — 1,728  Change associated with current period hedging — — 289 289  Reclassification into earnings — — 1,024 1,024  Balance at December 31, 2019 $ 1,307 $ 1,972 $ (6,697) $ (3,418)   Balance at March 31, 2020 $ — $ (7,084) $ (288) $ (7,372)  Change associated with foreign currency translation — 6,353 — 6,353  Change associated with current period hedging — — (4,459) (4,459)  Reclassification into earnings — — 275 275  Balance at June 30, 2020 $ — $ (731) $ (4,472) $ (5,203)  Change associated with foreign currency translation — 5,221 — 5,221  Change associated with current period hedging — — (2,277) (2,277)  Reclassification into earnings — — 281 281  Balance at September 30, 2020 $ — $ 4,490 $ (6,468) $ (1,978)  Change associated with foreign currency translation — 11,526 — 11,526  Change associated with current period hedging — — (383) (383)  Reclassification into earnings — — 302 302  Balance at December 31, 2020 $ — $ 16,016 $ (6,549) $ 9,467 Effective April 1, 2019, the Joint Venture adopted FASB ASU No. 2018-02, which allows a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act of 2017. The adoption of this update resulted in a reclassification between accumulat ed other comprehensive income (loss) and accumulated earnings (deficit) . 

Incentive Compensation Plans

Incentive Compensation Plans	9 Months Ended
	Dec. 31, 2020
Incentive Compensation Plans [Abstract]
Incentive Compensation Plans	17. Incentive Compensation Plans Long Term Incentive Plan Awards In connection with the Omnibus Incentive Plan, during the nine months ended December 31, 2020, we granted to our employees and directors one or a combination of time-vesting restricted stock units, cash settled restricted stock units, and performance stock units under vesting terms that generally vary from one to four years from the date of grant. Restricted Stock Units (“RSUs ”) – We granted 107,520 a nd 5,832,321 R SUs during the three and nine months ended December 3 1 , 2020, respectively. The RSUs are subject to either a graded vesting schedule over four years or a one -year cliff vesting schedule, depending on the terms of the specific award. Upon vesting, the RSUs are exchanged for shares of common stock. Cash Settled Restricted Stock Units (“CSRSUs”) – We granted zero and 172,524 CSRSUs during the three and nine months ended December 3 1 , 2020, respectively. The CSRSUs vest 100% upon the one -year anniversary of the date of grant. Upon vesting, we are required to pay cash in settlement of such CSRSUs based on their fair value at the date such CSRSUs vest. Performance Stock Units (“PSUs”) – We granted 1,177,152 PSUs during the three and nine months ended December 31, 2020. The PSUs consist of two tranches, one for which vesting varies based on the Company’s compounded annual revenue growth rate over a three year period in comparison to a target percentage and one for which vesting varies based on the Company’s compounded annual Adjusted EBITDA growth rate over a three year period in comparison to a target percentage. The awards earned upon satisfaction of the performance conditions become vested on the third anniversary of the vesting commencement date of the award. The Company recognizes compensation expense for the PSUs based on the number of awards that are considered probable to vest. Recognition of expense is based on the probability of achievement of performance targets and is periodically reevaluated. We recognized compensation expense related to these awards granted during the three and nine months ended December 3 1 , 2020 of $5,518 and $10,971 , respectively. At December 31, 2020, aggregate unrecognized compensation expense related to these awards was $73,859 . eRx Awards Upon completion of the eRx acquisition all outstanding eRx equity awards were canceled. Holders of eRx stock options and vested eRx stock appreciation rights were able to elect to receive consideration in the form of a cash payment or vested stock appreciation rights of the Company. For those individuals with unvested eRx equity awards, we elected to issue replacement awards with vesting and exercisability terms generally identical to the existing eRx awards which were replaced. These replacement awards granted under the Omnibus Incentive Plan consisted of unvested restricted share units (“eRx RSUs”) and unvested stock appreciation rights (“eRx SARs”) with terms identical to the original eRx awards. The awards vest subject to the employee’s continued employment through the date when Blackstone has sold at least 25% of the maximum number of shares held by it (i.e., a liquidity event) and achieved specified rates of return that vary by award. Upon vesting, we are required to pay cash in settlement of such eRx awards based on their fair value at the date of such vesting. During the three and nine months ended December 3 1 , 2020, we recognized compensation expense related to eRx awards granted under the Omnibus Incentive Plan of $208 a nd $1,675 , respectively. At December 31, 2020, aggregate unrecognized compensation expense related to these awards was $1,185 . 

Related Party Transactions

Related Party Transactions	9 Months Ended
	Dec. 31, 2020
Related Party Transactions [Abstract]
Related Party Transactions	1 8 . Related Party Transactions eRx Option Agreement Prior to the creation of the Joint Venture, we entered into an option agreement to acquire eRx (the “Option Agreement”). Under the terms of the Option Agreement, the option to acquire eRx would only become exercisable at any such time that McKesson owns (directly or indirectly), in the aggregate, less than 5% of the outstanding u nits of the Joint Venture. Subsequent to the Merger, the Option became exercisable and was exercised on May 1, 2020. See Note 4, Business Combinations , for additional information. Transition Services Agreements In connection with the creation of the Joint Venture, we entered into transition services agreements with eRx. Under the agreements, we provide d certain transition services to eRx in exchange for specified fees. Prior to the acquisition of eRx, we recognized $283 and $0 in transition fee income during the nine months ended December 31, 2020 and 2019, respectively . We recognized $0 in transition fee income during the three months ended December 31, 2020 and 2019. The amounts received are included in Other, net in the consolidated statement of operations. Employer Healthcare Program Agreement with Equity Healthcare Effective January 1, 2014, we entered into an employer health program agreement with Equity Healthcare LLC (“Equity Healthcare”), an affiliate of Blackstone, whereby Equity Healthcare provides certain negotiating, monitoring and other services in connection with our health benefit plans. In consideration for Equity Healthcare’s services, we pay a fee of $1.00 per participating employee per month. Term Loans Held by Related Party C ertain investment funds managed by GSO Capital Partners LP (the “GSO-managed funds”) held a portion of the term loans under our Senior Credit Facilities. GSO Advisor Holdings LLC (“GSO Advisor”) is the general partner of GSO Capital Partners LP and Blackstone, indirectly through its subsidiaries, holds all of the issued and outstanding equity interests of GSO Advisor. As of December 31, 2020 and March 31, 2020, the GSO-managed funds held $168,200 and $151,301 , respectively, in principal amount of the Senior Credit Facilities ( none of which is classified within current portion of long-term debt). Transactions with Blackstone Portfolio Companies We provide various services to, and purchase services from, certain Blackstone portfolio companies under contracts that were executed in the normal course of business. The following is a summary of revenue recognized/amounts paid related to service provided to/from Blackstone portfolio companies:    Three Months Ended December 31, Nine Months Ended December 31,  2020 2019 2020 2019  Revenue recognized related to services provided $ 934 $ — $ 2,815 $ —  Amount paid related to services received $ 3,883 $ — $ 13,341 $ — 

Segment Reporting

Segment Reporting	9 Months Ended
	Dec. 31, 2020
Segment Reporting [Abstract]
Segment Reporting	19. Segment Reporting Management views the Company’s operating results based on three reportable segments: (a) S oftware and An alytics, (b) N etwork S olutions and (c) T echnology- E nabled S ervices. Software and Analytics The S oftware and A nalytics segment provides solutions for revenue cycle management, provider network management, payment accuracy, value - based payments, clinical decision support, consumer engagement, risk adjustment and quality performance, and imaging and clinical workflow. Network Solutions The N etwork S olutions segment provides solutions for financial, administrative , clinical and pharmacy transactions, electronic payments and aggregation and analytics of clinical and financial data. Technology- E nabled Services The Technology-Enabled Services segment provides solutions for financial and administrative management, value-based care, communication and payment, pharmacy benefits administration and healthcare consulting. Postage and Eliminations Postage and eliminations includes pass-through postage costs, as well as eliminations to remove inter-segment revenue and expenses and consolidating adjustments to classify certain rebates paid to channel partners as a reduction of revenue. These administrative costs are excluded from the adjusted EBITDA measure for each respective reportable segment. Segment Results R evenue and adjusted EBITDA for each of the reportable segments for the three and nine months ended December 3 1 , 2020 are shown below . I nformation is reflected in the manner utilized by management to make operating decisions, assess performance and allocate resources. Such amounts include allocations of corporate shared services functions that are essential to the core operations of the reportable segments. Segment assets and related depreciation expenses are not presented to management for purposes of operational decision making, and therefore are not included in the accompanying tables.    Three Months Ended Nine Months Ended  December 31, 2020 December 31, 2020  Segment Revenue  Software and Analytics $ 372,212 $ 1,118,661  Network Solutions 192,588 519,509  Technology-Enabled Services 222,514 642,037  Postage and Eliminations (1) 22,006 73,142  Purchase Accounting Adjustment (2) (24,179) (118,088)  Net Revenue $ 785,141 $ 2,235,261  Segment Adjusted EBITDA  Software and Analytics $ 120,779 $ 382,103  Network Solutions 103,847 268,858  Technology-Enabled Services 8,798 11,158  Adjusted EBITDA $ 233,424 $ 662,119   Reconciliation of income (loss) before tax provision (benefit) to Adjusted EBITDA  Income (loss) before income tax provision (benefit) $ (2,366) $ (130,531)  Amortization of capitalized software developed for sale 460 550  Depreciation and amortization 151,143 436,552  Interest expense 61,439 185,733  Equity compensation 10,944 34,858  Acquisition accounting adjustments 20,601 103,826  Acquisition and divestiture-related costs 2,661 10,119  Integration and related costs 9,688 27,581  Strategic initiatives, duplicative and transition costs 4,324 13,169  Severance costs 2,591 10,467  Accretion and changes in estimate, net (2,759) 8,429  Impairment of long-lived assets and other 658 14,418  Gain on sale of businesses (32,217) (60,487)  Contingent consideration — (3,000)  Loss on extinguishment of debt 6,145 7,634  Other non-routine, net 112 2,801  Adjusted EBITDA $ 233,424 $ 662,119  (1) Revenue for the Postage and Eliminations segment includes postage revenue of $49,877 and $145,672 for the three and nine months ended December 3 1 , 2020 , respectively . (2) Amount reflects the impact to deferred revenue resulting from the Merger which reduced revenue recognized during the period. Prior to the Merger, the Company had minimal operations outside of the investment in the Joint Venture and the Company’s standalone operating results were not utilized by management to make operating decisions, assess performance, or allocate resources. As such, the Company reported its results as a single reportable segment for the three and nine months ended December 31, 2019.

Subsequent Events

Subsequent Events	9 Months Ended
	Dec. 31, 2020
Subsequent Events [Abstract]
Subsequent Events	20. Subsequent Events On January 5, 2021, the Company entered into a definitive agreement and plan of merger with UnitedHealth Group Incorporated (“UnitedHealth Group”) under which UnitedHealth Group will acquire all outstanding shares of the Company (“the transaction”). The agreement calls for the acquisition of the Company’s common stock for $25.75 per share in cash and is expected to close in the second half of 2021, subject to Company shareholders’ approval, regulatory approvals and other customary closing conditions. No accounting adjustments related to this transaction were recorded in the three months ended December 31, 2020. Agreements related to the transaction are included as exhibits to this Form 10-Q. 

Significant Accounting Polici_2

Significant Accounting Policies (Policy)	9 Months Ended
	Dec. 31, 2020
Significant Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The unaudited consolidated financial statements have been prepared in accordance with United States generally accepted accounting principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X of the Securities and Exchange Commission (“SEC”) Guidelines, Rules and Regulations and, in the opinion of management, reflect all normal recurring adjustments necessary for a fair presentation of results for the unaudited interim periods presented. Certain information and footnote disclosures normally included in annual financial statements prepared in accordance with GAAP have been omitted. The results of operations for the interim period are not necessarily indicative of the results to be obtained for the full fiscal year. All intercompany accounts and transactions have been eliminated in the unaudited consolidated financial statements.
Business Combinations	Business Combinations We recognize the consideration transferred (i.e., purchase price) in a business combination, as well as the acquired business’ identifiable assets, liabilities and noncontrolling interests at their acquisition date fair value. The excess of the consideration transferred over the fair value of the identifiable assets, liabilities and noncontrolling interest, if any, is recorded as goodwill. Any excess of the fair value of the identifiable assets acquired and liabilities assumed over the consideration transferred, if any, is generally recognized within earnings as of the acquisition date. The fair value s of the consideration transferred, assets, liabilities and noncontrolling interests are estimated based on one or a combination of income, cost or market approaches as determined based on the nature of the asset or liability and the level of inputs available (i.e., quoted prices in an active market, other observable inputs or unobservable inputs). To the extent our initial accounting for a business combination is incomplete at the end of a reporting period, provisional amounts are reported for those items which are incomplete. In conjunction with business combinations, we generally recognize goodwill attributable to the assembled workforce and expected synergies among the operations of the acquired entities and our existing operations. Goodwill is generally deductible for federal income tax purposes when a business combination is treated as an asset purchase and is generally not deductible for federal income tax purposes when a business combination is treated as a stock purchase. See Note 4, Business Combinations .
Allowance for Credit Losses	Allowance for Credit Losses The allowance for credit losses of $24,003 a nd $22,360 at December 3 1 , 2020 and March 31, 2020, respectively, were primarily based on historical credit loss experience, current conditions and adjustments for certain asset-specific risk characteristics. The following table summarizes activity related to the allowance for credit losses:    Nine Months Ended December 31,  2020 2019  Balance at beginning of period $ 22,360 $ —  Cumulative effect of accounting change-ASU 2016-13 417 —  Acquisitions and Dispositions (1) (3,534) —  Provisions 11,623 —  Write-offs (6,863) —  Balance at end of period $ 24,003 $ — (1) Amount relates primarily to the acquisitions of eRx and PDX and sale s of Connected Analytics and Capacity Management. See Note 4, Business Combinations and Note 5, Dispositions .
Leases	Leases We determine whether an arrangement contains a lease based on the conveyed rights and obligations at the inception date. If an agreement contains an operating or finance lease, at the commencement date, we record a right-of-use asset and a corresponding lease liability based on the present value of the minimum lease payments. As most of our leases do not provide an implicit borrowing rate, to determine the present value of lease payments, we use the portfolio approach and determine our hypothetical secured borrowing rate based on information available at lease commencement. Further, we make certain estimates and judgements regarding the lease term and lease payments, noted below. Leases with an initial term of 12 months or less are not recorded on the balance sheet and we recognize lease expense for these leases on a straight-line basis over the lease term. Most leases include one or more options to renew, with renewal terms that can extend the lease term from one month to one year or more. Additionally, some of our leases include an option for early termination. We include renewal periods and exclude termination periods from our lease term if, at commencement, we are reasonably certain to exercise the option. Certain of our lease agreements include rental payments that are adjusted periodically for inflation or passage of time. These step payments are included within our present value calculation as they are known adjustments at commencement. Some of our lease agreements include variable payments that are excluded from our present value calculation. For example, some of our equipment leases include a component which varies based on the asset’s use. Additionally, we have lease agreements that include lease and non-lease components, such as equipment leases, which are generally accounted for as a single lease component. For these leases, lease payments include all fixed payments stated within the contract. For other leases, such as office space, lease and non-lease components are accounted for separately. Our lease agreements do not contain any material residual value guarantees that would impact our lease payments.
Recently Adopted Accounting Pronouncements and Accounting Pronouncements Not Yet Adopted	Recently Adopted Accounting Pronouncements Financial Instruments: Credit Losses In April 2020, we adopted Financial Accounting Standards Board (“FASB”) Accounting Standards Update (“ASU”) No. 2016-13, as amended by ASU No. 2018-19, which requires that a financial asset (or group of financial assets) measured at amortized cost be presented at the net amount expected to be collected based on relevant information about past events, including historical experience, current conditions and reasonable and supportable forecasts that affect the collectability of the reported amount. The guidance also requires us to pool assets with similar risk characteristics and consider current economic conditions when estimating losses. We adopted this standard using the modified retrospective approach and recorded a cumulative effect to retained earnings of $417 as of April 1, 2020. Fair Value Measurements In April 2020, we adopted FASB ASU No. 2018-13, which modifies the disclosure requirements for fair value measurements . Entities are no longer required to disclose the amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy, but public companies are required to disclose the range and weighted-average of significant unobservable inputs used to develop Level 3 fair value measurements. See Note 10, Fair Value Measurements . Hosting Arrangement Implementation Costs In April 2020, we adopted FASB ASU No. 2018-15, which aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. This update also requires that the effects of such capitalized costs be classified in the same respective caption in the statement of operations, balance sheet and cash flows as the underlying hosting arrangement. We adopted this standard prospectively beginning April 1, 2 020. This adoption did not have a material impact on our financial statements for the three and nine months ended December 31, 2020. Leases In April 2020, we adopted FASB ASU No. 2016-02, which created Topic 842 – Leases (“ASC 842”). The standard generally requires that all lease obligations be recognized on the balance sheet at the present value of the remaining lease payments with a corresponding right-of-use asset. In July 2018, the FASB issued ASU No. 2018-11 which provides companies with the option to apply this cumulative effect adjustment to the opening balance of retained earnings in the period of adoption. Upon adoption, we elected the transition “practical expedients” permitting us not to reassess our prior conclusions about lease identification, lease classification and initial direct costs. Additionally, we elected the practical expedient to not separate lease and non-lease components for equipment lease agreements. We adopted ASC 842 using the modified retrospective approach and recorded right-of-use assets of $111,815 and lease liabilities of $125,331 , primarily related to operating leases. The recognition of the right-of-use assets in combination with our previously recorded prepaid rent balances resulted in no requirement to adjust the opening balance of retained earnings. Our accounting for finance leases remains substantially unchanged. Adoption of ASC 842 did not materially impact our consolidated statement of operations and had no impact on our consolidated statement of cash flows. See Note 8, Leases , for additional information. London Interbank Offered Rate (LIBOR) Reform In March 2020, the FASB issued ASU No. 2020-04, which created Topic 848 – Reference Rate Reform. ASU No. 2020-04 contains optional practical expedients for reference rate reform related activities that impact debt, leases, derivatives and other contracts which may be elected over time as activities occur. Among other things, the ASU intends to ease the transition from LIBOR to an alternative reference rate. During the first quarter of fiscal year 2021, we elected to apply the hedge accounting expedients related to probability and the assessments of effectiveness for future LIBOR-indexed cash flows to assume that the index upon which future hedged transactions will be based matches the index on the corresponding derivatives. Application of these expedients preserves the presentation of derivatives consistent with past presentation. We continue to evaluate the impacts of ASU No. 2020-04 and may apply other elections as reference rate reform activities progress. Accounting Pronouncements Not Yet Adopted None that are expected to have a material impact on our financial statements.

Significant Accounting Polici_3

Significant Accounting Policies (Tables)	9 Months Ended
	Dec. 31, 2020
Significant Accounting Policies [Abstract]
Summary of Activity Related to Allowance for Credit Losses	  Nine Months Ended December 31,  2020 2019  Balance at beginning of period $ 22,360 $ —  Cumulative effect of accounting change-ASU 2016-13 417 —  Acquisitions and Dispositions (1) (3,534) —  Provisions 11,623 —  Write-offs (6,863) —  Balance at end of period $ 24,003 $ — (1) Amount relates primarily to the acquisitions of eRx and PDX and sale s of Connected Analytics and Capacity Management. See Note 4, Business Combinations and Note 5, Dispositions .

Business Combinations (Tables)

Business Combinations (Tables)	9 Months Ended
	Dec. 31, 2020
eRx Network Holdings, Inc. [Member]
Business Acquisition [Line Items]
Summary of Information Related to Acquisition	  eRx  Cash paid at closing $ 249,359  Fair value of eRx purchase option 140,500  Fair value of vested stock appreciation rights 5,097  Cash paid for canceled eRx equity awards 5,891  Total Consideration Fair Value at Acquisition Date $ 400,847   Allocation of the Consideration Transferred:  Cash $ 54,108  Accounts receivable, net of allowance of $326 12,747  Prepaid expenses and other current assets 609  Goodwill 225,156  Identifiable intangible assets:  Customer relationships (life 17 years) 131,200  Internally developed technology (life 9 - 12 years) 29,700  Other noncurrent assets 20  Accounts payable (2,543)  Accrued expenses and other current liabilities (10,933)  Deferred income tax liabilities (39,217)  Total consideration transferred $ 400,847 
PDX, Inc. [Member]
Business Acquisition [Line Items]
Summary of Information Related to Acquisition	  PDX  Cash $ 755  Accounts receivable, net of allowance of $1,092 5,739  Prepaid expenses and other current assets 2,251  Property and equipment 840  Goodwill 98,830  Identifiable intangible assets:  Customer relationships (life 18 years) 74,300  Technology-based intangible assets (life 10 - 11 years) 25,300  Other noncurrent assets 690  Accounts payable (3,882)  Deferred revenue, current (2,946)  Accrued expenses and other current liabilities (3,364)  Other noncurrent liabilities (222)  Total consideration transferred $ 198,291 
The Merger [Member]
Business Acquisition [Line Items]
Summary of Information Related to Acquisition	  Net Assets acquired  Cash $ 330,665  Accounts receivable, net of allowance of $22,059 718,895  Contract assets 132,704  Prepaid and other current assets 115,265  Investment in business purchase option 146,500  Property and equipment, net 206,751  Goodwill 4,357,560  Other noncurrent assets 169,539  Identified intangible assets:  Customer relationships (life 12 - 16 years) 3,056,000  Tradenames (life 18 years) 146,000  Technology-based intangible assets (life 6 - 12 years) 1,188,000  Drafts and accounts payable (60,637)  Accrued expenses (559,456)  Deferred revenue, current (292,528)  Current portion of long-term debt (28,969)  Other current liabilities (22,732)  Long-term debt, excluding current portion (4,713,565)  Deferred income tax liabilities (574,988)  Tax receivable agreement obligations with related parties (176,586)  Other long-term liabilities (102,675)  Net Assets acquired $ 4,035,743   Summary of purchase consideration:  Fair value of shares issued to SpinCo shareholders  ( 175,995,192 shares at $12.47 per share):  Common Stock, $0.001 par value $ 176  Additional paid-in capital 2,194,484  Fair value of Joint Venture equity interest previously held 1,589,040  Fair value of Joint Venture equity interest previously held through TEUs 216,764  Settlement of dividend receivable 42,778  Repayment of advances to member (7,499)  Purchase consideration $ 4,035,743 

Goodwill (Tables)

Goodwill (Tables)	9 Months Ended
	Dec. 31, 2020
Goodwill [Abstract]
Schedule of Goodwill	   Software and Analytics Network Solutions Technology-Enabled Services Total  Balance at March 31, 2020 $ 1,770,118 $ 1,645,831 $ 379,376 $ 3,795,325  Acquisitions (1) 22,341 323,986 — 346,327  Dispositions (51,136) — — (51,136)  Effects of foreign currency 17,926 — — 17,926  Adjustments (2) (1,637) (1,081) (311) (3,029)  Balance at December 31, 2020 $ 1,757,612 $ 1,968,736 $ 379,065 $ 4,105,413 (1) Amounts relate primarily to the acquisitions of eRx, PDX and Nucleus.io. See Note 4, Business Combinations . (2) Amounts relate to fair value adjustments to the assets acquired and liabilities assumed in the Merger. See Note 4, Business Combinations .

Equity Method Investment in C_2

Equity Method Investment in Change Healthcare LLC (Tables)	9 Months Ended
	Dec. 31, 2020
Equity Method Investment in Change Healthcare LLC [Abstract]
Summarized Financial Information of the Joint Venture	  Three Months Ended Nine Months Ended  December 31, 2019 December 31, 2019  Total revenue $ 808,226 $ 2,459,593  Cost of operations (exclusive of depreciation and amortization) $ 339,413 $ 998,943  Customer postage $ 55,693 $ 171,288  Net income (loss) $ 31,191 $ 102,973 

Leases (Tables)

Leases (Tables)	9 Months Ended
	Dec. 31, 2020
Leases [Abstract]
Components of Lease Cost	  Three Months Ended Nine Months Ended  Statement of Operations Location December 31, 2020 December 31, 2020  Operating lease cost (1) $ 9,951 $ 32,109  Finance lease cost  Amortization expense Depreciation and amortization 110 312  Interest expense Interest expense, net 35 102  Short-term lease cost (1) 261 747  Variable lease cost (1) 1,524 5,275  Sublease income Other, net (172) (834)  Total lease cost $ 11,709 $ 37,711 (1) Cost classification varies depending on the leased asset. Costs are primarily included within s ales, marketing, general and administrative and cost of operations .
Right-of-use Assets and Lease Liabilities	  Balance Sheet Location December 31, 2020  Right-of-use assets  Operating leases Operating lease right-of-use assets, net $ 99,258  Finance leases Property and equipment, net 1,975  Total right-of-use assets $ 101,233   Lease liabilities  Current liabilities  Operating leases Current portion of operating lease liabilities $ 30,813  Finance leases Current portion of long-term debt 577  Noncurrent liabilities  Operating leases Long-term operating lease liabilities 80,789  Finance leases Long-term debt, excluding current portion 1,373  Total lease liabilities $ 113,552 
Supplemental Cash Flow Information	  Nine Months Ended December 31, 2020  Operating Leases Finance Leases  Cash paid for amounts included in the measurement of lease liabilities  Operating cash flows $ 31,331 $ 102  Financing cash flows $ — $ 490  Non-cash activities  Right-of-use assets obtained in exchange for lease liabilities ( 1) $ 11,846 $ 363 (1) Amount s exclude the impact of adopting ASC 842. See Note 2, Significant Accounting Policies .
Lease Liability Maturities	Maturities of lease liabilities by fiscal year as of December 31, 2020 are as follows:    Operating Leases Finance Leases Total  Remainder of 2021 $ 10,022 $ 183 $ 10,205  2022 36,697 664 37,361  2023 27,580 485 28,065  2024 19,037 468 19,505  2025 14,011 390 14,401  2026 and thereafter 25,501 — 25,501  Total lease liabilities, undiscounted 132,848 2,190 135,038  Less: Imputed interest 21,246 240 21,486  Total lease liabilities $ 111,602 $ 1,950 $ 113,552 Maturities of lease liabilities by fiscal year as of March 31, 2020 were as follows:    Operating Leases Finance Leases Total  2021 $ 40,476 $ 468 $ 40,944  2022 34,750 468 35,218  2023 23,761 468 24,229  2024 15,393 468 15,861  2025 10,780 390 11,170  2026 and thereafter 15,850 — 15,850  Total lease liabilities, undiscounted $ 141,010 $ 2,262 $ 143,272 
Other Information Related to Leases	  Operating Leases Finance Leases  Weighted-average remaining lease term 4.79 years 3.70 years  Weighted-average discount rate 7.39 % 6.53 % 

Interest Rate Cap Agreements (T

Interest Rate Cap Agreements (Tables)	9 Months Ended
	Dec. 31, 2020
Interest Rate Cap Agreements [Abstract]
Schedule of Fair Value of Derivative Instruments	  Fair Values of Derivative Financial Instruments  Asset (Liability)  Derivative financial instruments designated as hedging instruments: Balance Sheet Location December 31, 2020 March 31, 2020  Interest rate cap agreements Accrued expenses (28,985) (28,131)  Interest rate cap agreements Other long-term liabilities (3,288) (19,277)  Total $ (32,273) $ (47,408) 
Schedule of Effect of Derivative Instruments on Statement of Operations	  Three Months Ended December 31, Nine Months Ended December 31,  Derivative financial instruments in cash flow hedging relationships: 2020 2019 2020 2019  Gain/(loss) related to derivative financial instruments recognized in other comprehensive income (loss) $ (383) $ — $ (7,119) $ —  Gain/(loss) related to portion of derivative financial instruments reclassified from accumulated other comprehensive income (loss) to interest expense $ 302 $ — $ 858 $ — 

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Dec. 31, 2020
Fair Value Measurements [Abstract]
Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis	  Quoted in Significant Other Significant  Balance at Identical Markets Observable Inputs Unobservable Inputs  Description December 31, 2020 (Level 1) (Level 2) (Level 3)  Interest rate cap agreements $ (32,273) $ — $ (32,273) $ —  Contingent consideration obligation — — — —  Total $ (32,273) $ — $ (32,273) $ —     Quoted in Significant Other Significant  Balance at Identical Markets Observable Inputs Unobservable Inputs  Description March 31, 2020 (Level 1) (Level 2) (Level 3)  Interest rate cap agreements $ (47,408) $ — $ (47,408) $ —  Contingent consideration obligation (3,000) — — (3,000)  Total $ (50,408) $ — $ (47,408) $ (3,000) 
Reconciliation of Fair Value Derivative Using Unobservable Inputs	  Three Months Ended December 31, Nine Months Ended December 31,  2020 2019 2020 2019  Balance at beginning of period $ — $ — $ (3,000) $ —  Gain/(loss) included in contingent consideration — — 3,000 —  Balance at end of period $ — $ — $ — $ — 
Carrying Amount and Estimated Fair Value of Financial Instruments	  December 31, 2020 March 31, 2020  Carrying Amount Fair Value Carrying Amount Fair Value  Cash and cash equivalents $ 137,357 $ 137,357 $ 410,405 $ 410,405  Accounts receivable $ 697,948 $ 697,948 $ 740,105 $ 740,105  Investment in business purchase option $ — $ — $ 146,500 $ 146,500  Senior Credit Facilities (Level 2) $ 3,447,156 $ 3,529,963 $ 3,682,457 $ 3,452,687  Senior Notes (Level 2) $ 1,317,689 $ 1,348,188 $ 997,772 $ 950,000  Debt component of tangible equity units (Level 2) $ 24,268 $ 24,801 $ 35,431 $ 34,806 

Long-Term Debt (Tables)

Long-Term Debt (Tables)	9 Months Ended
	Dec. 31, 2020
Long-Term Debt [Abstract]
Schedule of Long-Term Debt	  December 31, 2020 March 31, 2020  Senior Credit Facilities  $5,100,000 Term Loan Facility, due March 1, 2024 , net of unamortized discount of $96,094 and $125,793 at December 31, 2020 and March 31, 2020, respectively (effective interest rate of 4.42% and 4.42% , respectively) $ 3,447,156 $ 3,682,457  $785,000 Revolving Facility, expiring July 3, 2024 , and bearing interest at a variable interest rate (1) — 250,000  Senior Notes  $1,325,000 5.75% Senior Notes due March 1, 2025 , net of unamortized discount of $7,311 and $2,228 at December 31, 2020 and March 31, 2020, respectively (effective interest rate of 5.90% and 5.80% , respectively) 1,317,689 997,772  Tangible Equity Unit Senior Amortizing Note  $47,367 Senior Amortizing Notes due June 30, 2022 , net of unamortized discount of $405 and $842 at December 31, 2020 and March 31, 2020, respectively (effective interest rate of 7.44% and 7.44% , respectively) 24,268 35,431  Other 28,734 23,413  Less current portion (37,019) (278,779)  Long-term debt $ 4,780,828 $ 4,710,294 (1) The weighted average interest rate at March 31, 2020 was 3.25 %.

Net Income (Loss) Per Share (Ta

Net Income (Loss) Per Share (Tables)	9 Months Ended
	Dec. 31, 2020
Net Income (Loss) Per Share [Abstract]
Computation of Basic Net Income (Loss) Per Share of Common Stock	  Three Months Ended December 31, Nine Months Ended December 31,  2020 2019 2020 2019  Numerator:  Net income (loss) $ 2,196 $ 50,735 $ (99,120) $ (80,716)  Denominator:  Weighted average common shares outstanding 304,547,891 124,962,970 304,104,388 108,371,642  Minimum shares issuable under purchase contracts 16,465,704 18,429,325 16,465,704 12,286,217  Total weighted average shares outstanding 321,013,595 143,392,295 320,570,092 120,657,859  Basic net income (loss) per share $ 0.01 $ 0.35 $ (0.31) $ (0.67)  Diluted net income per share:  Numerator:  Net income (loss) $ 2,196 $ 50,735 $ (99,120) $ (80,716)  Denominator:  Number of shares used in basic computation 321,013,595 143,392,295 320,570,092 120,657,859  Weighted average effect of dilutive securities  Dilutive shares issuable under purchase contracts — 1,450,910 — —  Time-Vesting Options 932,344 1,059,868 — —  Restricted Share Units 2,753,810 289,537 — —  Deferred Stock Units 95,624 9,250 — —  Employee Stock Purchase Program Shares 20,151 — — —  324,815,524 146,201,860 320,570,092 120,657,859  Diluted net income (loss) per share $ 0.01 $ 0.35 $ (0.31) $ (0.67) 
Antidilutive Securities Excluded from Diluted Net Income (Loss) Per Share	  Three Months Ended December 31, Nine Months Ended December 31,  2020 2019 2020 2019  Dilutive shares issuable under purchase contracts — — 1,579,991 1,712,220  Time-Vesting Options — — 766,432 1,290,327  Restricted Share Units — — 2,360,586 605,830  Deferred Stock Units — — 81,983 6,167 

Tax Receivable Agreements (Tabl

Tax Receivable Agreements (Tables)	9 Months Ended
	Dec. 31, 2020
McKesson Tax Receivable Agreement [Member]
Related Party Transaction [Line Items]
Aggregate Payments Due Under Tax Receivable Agreements	  Related Party Tax Receivable Agreements McKesson Tax Receivable Agreement Other Tax Receivable Agreements Total  Remainder of 2021 $ — $ — $ — $ —  2022 11,606 128 10,788 22,522  2023 11,349 35,992 10,722 58,063  2024 23,421 7,368 13,549 44,338  2025 50,772 23,836 20,004 94,612  Thereafter 83,221 92,192 61,192 236,605  Gross expected payments 180,369 159,516 116,255 456,140  Less: Amounts representing discount (69,149) — (36,561) (105,710)  Total tax receivable agreement obligation 111,220 159,516 79,694 350,430  Less: Current portion due (included in accrued expenses) (11,606) (128) (10,788) (22,522)  Tax receivable agreement long-term obligation $ 99,614 $ 159,388 $ 68,906 $ 327,908 

Income Taxes (Tables)

Income Taxes (Tables)	9 Months Ended
	Dec. 31, 2020
Income Taxes [Abstract]
Summary of Income Tax Information	  Three Months Ended December 31, Nine Months Ended December 31,  2020 2019 2020 2019  Income tax provision (benefit) $ (4,562) $ 15,240 $ (31,411) $ (564)  Effective tax rate 192.8% 23.1% 24.1% 0.7% 

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	9 Months Ended
	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Abstract]
Summary of Accumulated Other Comprehensive Income (Loss)	  Available Foreign Currency Accumulated Other  For Sale Translation Cash Flow Comprehensive  Debt Security Adjustment Hedge Income (Loss)  Balance at March 31, 2019 $ — $ (1,565) $ (1,691) $ (3,256)  Cumulative effect of accounting change of the Joint Venture-ASU 2018-02 — — 422 422  Change associated with foreign currency translation — 226 — 226  Change associated with current period hedging — — (5,117) (5,117)  Reclassification into earnings — — (314) (314)  Balance at June 30, 2019 $ — $ (1,339) $ (6,700) $ (8,039)  Unrealized gain (loss) on available for sale debt securities of the Joint Venture 1,173 — — 1,173  Change associated with foreign currency translation — 1,583 — 1,583  Change associated with current period hedging — — (1,509) (1,509)  Reclassification into earnings — — 199 199  Balance at September 30, 2019 $ 1,173 $ 244 $ (8,010) $ (6,593)  Unrealized gain (loss) on available for sale debt securities of the Joint Venture 134 — — 134  Change associated with foreign currency translation — 1,728 — 1,728  Change associated with current period hedging — — 289 289  Reclassification into earnings — — 1,024 1,024  Balance at December 31, 2019 $ 1,307 $ 1,972 $ (6,697) $ (3,418)   Balance at March 31, 2020 $ — $ (7,084) $ (288) $ (7,372)  Change associated with foreign currency translation — 6,353 — 6,353  Change associated with current period hedging — — (4,459) (4,459)  Reclassification into earnings — — 275 275  Balance at June 30, 2020 $ — $ (731) $ (4,472) $ (5,203)  Change associated with foreign currency translation — 5,221 — 5,221  Change associated with current period hedging — — (2,277) (2,277)  Reclassification into earnings — — 281 281  Balance at September 30, 2020 $ — $ 4,490 $ (6,468) $ (1,978)  Change associated with foreign currency translation — 11,526 — 11,526  Change associated with current period hedging — — (383) (383)  Reclassification into earnings — — 302 302  Balance at December 31, 2020 $ — $ 16,016 $ (6,549) $ 9,467 

Related Party Transactions (Tab

Related Party Transactions (Tables)	9 Months Ended
	Dec. 31, 2020
Related Party Transactions [Abstract]
Summary of Revenue Recognized/Amounts Paid Related to Service Provided to/from Portfolio Companies	  Three Months Ended December 31, Nine Months Ended December 31,  2020 2019 2020 2019  Revenue recognized related to services provided $ 934 $ — $ 2,815 $ —  Amount paid related to services received $ 3,883 $ — $ 13,341 $ — 

Segment Reporting (Tables)

Segment Reporting (Tables)	9 Months Ended
	Dec. 31, 2020
Segment Reporting [Abstract]
Revenue and Adjusted EBITDA for each Reportable Segment	   Three Months Ended Nine Months Ended  December 31, 2020 December 31, 2020  Segment Revenue  Software and Analytics $ 372,212 $ 1,118,661  Network Solutions 192,588 519,509  Technology-Enabled Services 222,514 642,037  Postage and Eliminations (1) 22,006 73,142  Purchase Accounting Adjustment (2) (24,179) (118,088)  Net Revenue $ 785,141 $ 2,235,261  Segment Adjusted EBITDA  Software and Analytics $ 120,779 $ 382,103  Network Solutions 103,847 268,858  Technology-Enabled Services 8,798 11,158  Adjusted EBITDA $ 233,424 $ 662,119   Reconciliation of income (loss) before tax provision (benefit) to Adjusted EBITDA  Income (loss) before income tax provision (benefit) $ (2,366) $ (130,531)  Amortization of capitalized software developed for sale 460 550  Depreciation and amortization 151,143 436,552  Interest expense 61,439 185,733  Equity compensation 10,944 34,858  Acquisition accounting adjustments 20,601 103,826  Acquisition and divestiture-related costs 2,661 10,119  Integration and related costs 9,688 27,581  Strategic initiatives, duplicative and transition costs 4,324 13,169  Severance costs 2,591 10,467  Accretion and changes in estimate, net (2,759) 8,429  Impairment of long-lived assets and other 658 14,418  Gain on sale of businesses (32,217) (60,487)  Contingent consideration — (3,000)  Loss on extinguishment of debt 6,145 7,634  Other non-routine, net 112 2,801  Adjusted EBITDA $ 233,424 $ 662,119  (1) Revenue for the Postage and Eliminations segment includes postage revenue of $49,877 and $145,672 for the three and nine months ended December 3 1 , 2020 , respectively . (2) Amount reflects the impact to deferred revenue resulting from the Merger which reduced revenue recognized during the period.

Nature of Business and Organi_2

Nature of Business and Organization (Narrative) (Details) $ / shares in Units, $ in Thousands	Jul. 01, 2019USD ($)shares	Jun. 26, 2019$ / sharesshares	Dec. 31, 2020$ / sharesshares	Dec. 31, 2019USD ($)	Mar. 31, 2020$ / sharesshares
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Stock split conversion ratio		126.4
Common Stock, shares authorized		9,000,000,000	9,000,000,000		9,000,000,000
Common Stock, par value | $ / shares		$ 0.001	$ 0.001		$ 0.001
Preferred stock, shares authorized		900,000,000	900,000,000		900,000,000
Preferred stock, par value | $ / shares		$ 0.001	$ 0.001		$ 0.001
Share offering	49,285,713
Proceeds from initial public offering | $	$ 608,679			$ 608,679
Common Class X [Member]
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Common Stock, shares authorized		1
Common Stock, par value | $ / shares		$ 0.001
Tangible Equity Units [Member]
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Tangible equity unit offering	5,750,000
Proceeds from tangible equity units | $	$ 278,875
Change Healthcare LLC [Member]
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Ownership percentage			100.00%

Significant Accounting Polici_4

Significant Accounting Policies (Narrative) (Details) $ in Thousands	9 Months Ended
	Dec. 31, 2020USD ($)item	Sep. 30, 2020USD ($)	Jun. 30, 2020USD ($)	Mar. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Sep. 30, 2019USD ($)	Jun. 30, 2019USD ($)	Mar. 31, 2019USD ($)
Significant Accounting Policies [Line Items]
Allowance for credit losses	$ 24,003			$ 22,360
Cumulative effect	3,233,738	$ 3,209,250	$ 3,239,354	3,285,447	1,950,131	$ 1,886,107	$ 1,131,424	1,132,487
ROU assets	99,258
Operating lease liability	$ 111,602
Minimum [Member]
Significant Accounting Policies [Line Items]
Number of lease renewal options | item	1
Lease renewal option, extension period	1 month
Maximum [Member]
Significant Accounting Policies [Line Items]
Lease renewal option, extension period	1 year
Accumulated Deficit [Member]
Significant Accounting Policies [Line Items]
Cumulative effect	$ (1,029,601)	$ (1,031,797)	$ (989,175)	(930,064)	$ (63,183)	$ (113,918)	$ (19,983)	(17,841)
ASC 842 [Member]
Significant Accounting Policies [Line Items]
ROU assets				111,815
Operating lease liability				125,331
Cumulative Effect, Period of Adoption, Adjustment [Member] | ASU 2016-13 [Member]
Significant Accounting Policies [Line Items]
Allowance for credit losses				417
Cumulative effect				(417)
Cumulative Effect, Period of Adoption, Adjustment [Member] | ASU 2016-13 [Member] | Accumulated Deficit [Member]
Significant Accounting Policies [Line Items]
Cumulative effect				$ (417)

Significant Accounting Polici_5

Significant Accounting Policies (Summary of Activity Related to Allowance for Credit Losses) (Details) - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Accounts Receivable, Allowance for Credit Loss [Line Items]
Balance at beginning of period	$ 22,360
Acquisitions and Dispositions	(3,534)
Provisions	11,623
Write-offs	(6,863)
Balance at end of period	24,003
Cumulative Effect, Period of Adoption, Adjustment [Member] | ASU 2016-13 [Member]
Accounts Receivable, Allowance for Credit Loss [Line Items]
Balance at beginning of period	$ 417

Revenue Recognition (Narrative)

Revenue Recognition (Narrative) (Details)	3 Months Ended	9 Months Ended
	Dec. 31, 2020USD ($)	Dec. 31, 2020USD ($)
Revenue from Contract with Customer [Line Items]
Percentage of deferred revenue balance expected to be recognized in one year or less		94.00%
Deferred revenue recognized		$ 245,760,000
Customer contracts, impairment loss	$ 0	0
Remaining performance obligation	$ 1,507,154,000	$ 1,507,154,000
Over Time [Member]
Revenue from Contract with Customer [Line Items]
Percentage of revenue recognized	98.00%	96.00%
Point in Time [Member]
Revenue from Contract with Customer [Line Items]
Percentage of revenue recognized	2.00%	4.00%
Prepaid and Other Current Assets [Member] | Obtain Contract [Member]
Revenue from Contract with Customer [Line Items]
Capitalized contract costs, current	$ 4,339,000	$ 4,339,000
Prepaid and Other Current Assets [Member] | Fulfill Contract [Member]
Revenue from Contract with Customer [Line Items]
Capitalized contract costs, current	3,287,000	3,287,000
Other Noncurrent Assets [Member] | Obtain Contract [Member]
Revenue from Contract with Customer [Line Items]
Capitalized contract costs, noncurrent	27,502,000	27,502,000
Other Noncurrent Assets [Member] | Fulfill Contract [Member]
Revenue from Contract with Customer [Line Items]
Capitalized contract costs, noncurrent	$ 18,072,000	$ 18,072,000

Revenue Recognition (Remaining

Revenue Recognition (Remaining Performance Obligation - Narrative) (Details)	Dec. 31, 2020
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-09-30
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation, expected satisfaction, period	12 months
Remaining performance obligation, percentage	49.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-09-30
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation, expected satisfaction, period	1 year
Remaining performance obligation, percentage	51.00%

Business Combinations (eRx Netw

Business Combinations (eRx Network Holdings, Inc. - Narrative) (Details) $ in Thousands	May 01, 2020USD ($)
Business Acquisition [Line Items]
Remeasurement loss	$ 6,000
eRx Network Holdings, Inc. [Member]
Business Acquisition [Line Items]
Ownership percentage acquired in exchange	100.00%

Business Combinations (PDX, Inc

Business Combinations (PDX, Inc. - Narrative) (Details) - PDX, Inc. [Member] - USD ($) $ in Thousands	Jun. 01, 2020	Dec. 31, 2020
Business Acquisition [Line Items]
Ownership percentage acquired in exchange	100.00%
Total consideration	$ 198,291
Maximum [Member]
Business Acquisition [Line Items]
Purchase price allocation period after acquisition		1 year

Business Combinations (Nucleus.

Business Combinations (Nucleus.io - Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended
	Aug. 31, 2020	Dec. 31, 2020	Mar. 31, 2020
Business Acquisition [Line Items]
Goodwill		$ 4,105,413	$ 3,795,325
Nucleus.io [Member]
Business Acquisition [Line Items]
Total consideration	$ 35,120
Goodwill	22,341
Technology-Based Intangible Assets [Member] | Nucleus.io [Member]
Business Acquisition [Line Items]
Identified intangible assets	$ 11,700

Business Combinations (The Merg

Business Combinations (The Merger - Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	Mar. 10, 2020	Dec. 31, 2019	Dec. 31, 2019	Dec. 31, 2020	Jun. 30, 2020	Mar. 31, 2020	Jun. 26, 2019
Business Acquisition [Line Items]
Common Stock, par value				$ 0.001		$ 0.001	$ 0.001
Loss from Equity Method Investment in the Joint Venture		$ 8,764	$ 104,497
Increase in deferred tax liability				$ (4,692)	$ 1,604
Joint Venture [Member] | Prior to Merger [Member]
Business Acquisition [Line Items]
Ownership percentage	42.00%
Percentage of remaining equity interest being acquired	58.00%
Loss from Equity Method Investment in the Joint Venture	$ 230,229
McKesson Common Stock [Member]
Business Acquisition [Line Items]
Common Stock, par value	$ 0.01
Number of shares of equity interests issued	15,426,537
SpinCo Common Stock [Member]
Business Acquisition [Line Items]
Common Stock, par value	$ 0.001
Number of shares of equity interests issued	175,995,192
Change Common Stock [Member]
Business Acquisition [Line Items]
Common Stock, par value	$ 0.001

Business Combinations (eRx Ne_2

Business Combinations (eRx Network Holdings, Inc. - Summary of Information Related to Acquisition) (Details) - USD ($) $ in Thousands	May 01, 2020	Dec. 31, 2020	Mar. 31, 2020
Business Acquisition [Line Items]
Goodwill		$ 4,105,413	$ 3,795,325
eRx Network Holdings, Inc. [Member]
Business Acquisition [Line Items]
Cash paid at closing	$ 249,359
Fair value of eRx purchase option	140,500
Fair value of vested stock appreciation rights	5,097
Cash paid for canceled eRx equity awards	5,891
Total Consideration Fair Value at Acquisition Date	400,847
Cash	54,108
Accounts receivable, net of allowance for doubtful accounts	12,747
Prepaid expenses and other current assets	609
Goodwill	225,156
Other noncurrent assets	20
Accounts payable	(2,543)
Accrued expenses and other current liabilities	(10,933)
Deferred income tax liabilities	(39,217)
Total consideration transferred	400,847
Accounts receivable, allownace for doubtful accounts	326
Customer Relationships [Member] | eRx Network Holdings, Inc. [Member]
Business Acquisition [Line Items]
Identified intangible assets	$ 131,200
Useful life	17 years
Internally Developed Technology [Member] | eRx Network Holdings, Inc. [Member]
Business Acquisition [Line Items]
Identified intangible assets	$ 29,700
Internally Developed Technology [Member] | eRx Network Holdings, Inc. [Member] | Minimum [Member]
Business Acquisition [Line Items]
Useful life	9 years
Internally Developed Technology [Member] | eRx Network Holdings, Inc. [Member] | Maximum [Member]
Business Acquisition [Line Items]
Useful life	12 years

Business Combinations (PDX, I_2

Business Combinations (PDX, Inc. - Summary of Information Related to Acquisition) (Details) - USD ($) $ in Thousands	Jun. 01, 2020	Dec. 31, 2020	Mar. 31, 2020
Business Acquisition [Line Items]
Goodwill		$ 4,105,413	$ 3,795,325
PDX, Inc. [Member]
Business Acquisition [Line Items]
Cash	$ 755
Accounts receivable, net of allowance for doubtful accounts	5,739
Prepaid expenses and other current assets	2,251
Property and equipment	840
Goodwill	98,830
Other noncurrent assets	690
Accounts payable	(3,882)
Deferred revenue, current	(2,946)
Accrued expenses and other current liabilities	(3,364)
Other long-term liabilities	(222)
Total consideration transferred	198,291
Accounts receivable, allownace for doubtful accounts	1,092
Customer Relationships [Member] | PDX, Inc. [Member]
Business Acquisition [Line Items]
Identified intangible assets	$ 74,300
Useful life	18 years
Technology-Based Intangible Assets [Member] | PDX, Inc. [Member]
Business Acquisition [Line Items]
Identified intangible assets	$ 25,300
Technology-Based Intangible Assets [Member] | PDX, Inc. [Member] | Minimum [Member]
Business Acquisition [Line Items]
Useful life	10 years
Technology-Based Intangible Assets [Member] | PDX, Inc. [Member] | Maximum [Member]
Business Acquisition [Line Items]
Useful life	11 years

Business Combinations (The Me_2

Business Combinations (The Merger - Summary of Information Related to Acquisition) (Details) - USD ($) $ / shares in Units, $ in Thousands	Mar. 10, 2020	Dec. 31, 2020	Mar. 31, 2020	Jun. 26, 2019
Business Acquisition [Line Items]
Goodwill		$ 4,105,413	$ 3,795,325
Common Stock, par value		$ 0.001	$ 0.001	$ 0.001
The Merger [Member]
Business Acquisition [Line Items]
Cash	$ 330,665
Accounts receivable, net of allowance for doubtful accounts	718,895
Contract assets	132,704
Prepaid expenses and other current assets	115,265
Investment in business purchase option	146,500
Property and equipment, net	206,751
Goodwill	4,357,560
Other noncurrent assets	169,539
Drafts and accounts payable	(60,637)
Accrued expenses	(559,456)
Deferred revenue, current	(292,528)
Current portion of long-term debt	(28,969)
Other current liabilities	(22,732)
Long-term debt, excluding current portion	(4,713,565)
Deferred income tax liabilities	(574,988)
Tax receivable agreement with related parties	(176,586)
Other long-term liabilities	(102,675)
Total consideration transferred	4,035,743
Accounts receivable, allownace for doubtful accounts	22,059
Fair value of shares issued to SpinCo shareholders (175,995,192 shares at $12.47 per share): Common Stock, $0.001 par value	176
Additional paid-in capital	2,194,484
Fair value of Joint Venture equity interest previously held	1,589,040
Fair value of Joint Venture equity interest previously held through TEUs	216,764
Settlement of dividend receivable	42,778
Repayment of advances to member	(7,499)
Purchase consideration	$ 4,035,743
Fair value of shares issued to SpinCo shareholders , shares	175,995,192
Fair value of shares issued to SpinCo shareholders, share price	$ 12.47
Common Stock, par value	$ 0.001
Customer Relationships [Member] | The Merger [Member]
Business Acquisition [Line Items]
Identified intangible assets	$ 3,056,000
Customer Relationships [Member] | The Merger [Member] | Minimum [Member]
Business Acquisition [Line Items]
Useful life	12 years
Customer Relationships [Member] | The Merger [Member] | Maximum [Member]
Business Acquisition [Line Items]
Useful life	16 years
Tradenames [Member] | The Merger [Member]
Business Acquisition [Line Items]
Identified intangible assets	$ 146,000
Useful life	18 years
Technology-Based Intangible Assets [Member] | The Merger [Member]
Business Acquisition [Line Items]
Identified intangible assets	$ 1,188,000
Technology-Based Intangible Assets [Member] | The Merger [Member] | Minimum [Member]
Business Acquisition [Line Items]
Useful life	6 years
Technology-Based Intangible Assets [Member] | The Merger [Member] | Maximum [Member]
Business Acquisition [Line Items]
Useful life	12 years

Dispositions (Narrative) (Detai

Dispositions (Narrative) (Details) - USD ($) $ in Thousands

Dec. 02, 2020

May 01, 2020

Jul. 31, 2020

Dec. 31, 2020

Dec. 31, 2020

Dec. 01, 2020

Sep. 30, 2020

Jun. 30, 2020

Apr. 30, 2020

Mar. 31, 2020

Dec. 31, 2019

Sep. 30, 2019

Jun. 30, 2019

Mar. 31, 2019

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Net book value

$ 3,233,738

$ 3,233,738

$ 3,209,250

$ 3,239,354

$ 3,285,447

$ 1,950,131

$ 1,886,107

$ 1,131,424

$ 1,132,487

Gain on sale of business

$ 32,217

$ 60,487

Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Connected Analytics [Member]

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Consideration

$ 55,000

Net book value

$ 22,619

Net accounts receivable

16,325

Goodwill

21,705

Deferred revenue

$ 17,133

Gain on sale of business

24,170

Payment received on notes receivable

$ 25,000

Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Connected Analytics [Member] | Notes Receivable [Member]

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Other noncurrent assets

$ 25,000

Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Capacity Management [Member]

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Consideration

$ 67,500

Net book value

$ 31,599

Net accounts receivable

14,999

Goodwill

26,944

Deferred revenue

$ 15,230

Gain on sale of business

$ 32,655

Goodwill (Schedule of Goodwill)

Goodwill (Schedule of Goodwill) (Details) $ in Thousands	9 Months Ended
	Dec. 31, 2020USD ($)
Goodwill [Line Items]
Balance at March 31, 2020	$ 3,795,325
Acquisitions	346,327
Dispositions	(51,136)
Effects of foreign currency	17,926
Adjustments	(3,029)
Balance at December 31, 2020	4,105,413
Software and Analytics [Member]
Goodwill [Line Items]
Balance at March 31, 2020	1,770,118
Acquisitions	22,341
Dispositions	(51,136)
Effects of foreign currency	17,926
Adjustments	(1,637)
Balance at December 31, 2020	1,757,612
Network Solutions [Member]
Goodwill [Line Items]
Balance at March 31, 2020	1,645,831
Acquisitions	323,986
Adjustments	(1,081)
Balance at December 31, 2020	1,968,736
Technology-Enabled Services [Member]
Goodwill [Line Items]
Balance at March 31, 2020	379,376
Adjustments	(311)
Balance at December 31, 2020	$ 379,065

Equity Method Investment in C_3

Equity Method Investment in Change Healthcare LLC (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Dec. 31, 2019	Dec. 31, 2020
Joint Venture [Member]
Schedule of Equity Method Investments [Line Items]
Write-off of basis differences within Loss from Equity Method Investment in the Joint Venture	$ 8,764	$ 104,497

Equity Method Investment in C_4

Equity Method Investment in Change Healthcare LLC (Summarized Financial Information of the Joint Venture) (Details) - Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member] - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Dec. 31, 2020	Dec. 31, 2020
Schedule of Equity Method Investments [Line Items]
Total revenue	$ 808,226	$ 2,459,593
Cost of operations (exclusive of depreciation and amortization)	339,413	998,943
Customer postage	55,693	171,288
Net income (loss)	$ 31,191	$ 102,973

Leases (Narrative) (Details)

Leases (Narrative) (Details)	9 Months Ended
	Dec. 31, 2020
Minimum [Member]
Operating and finance lease terms	1 year
Maximum [Member]
Operating and finance lease terms	15 years

Leases (Components of Lease Cos

Leases (Components of Lease Cost) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Dec. 31, 2020	Dec. 31, 2020
Leases [Abstract]
Operating lease cost	$ 9,951	$ 32,109
Finance lease cost: Amortization expense	110	312
Finance lease cost: Interest expense	35	102
Short-term lease cost	261	747
Variable lease cost	1,524	5,275
Sublease income	(172)	(834)
Total lease cost	$ 11,709	$ 37,711

Leases (Right-of-use Assets and

Leases (Right-of-use Assets and Lease Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Mar. 31, 2020
Leases [Abstract]
Operating Lease, Right-of-Use Asset	$ 99,258
Finance Lease, Right-of-Use Asset	$ 1,975
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:PropertyPlantAndEquipmentAbstract
Total right-of-use assets	$ 101,233
Current liabilities: Operating leases	30,813
Current liabilities: Finance leases	$ 577
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	Long Term Debt Current
Noncurrent liabilities: Operating leases	$ 80,789
Noncurrent liabilities: Finance leases	$ 1,373
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Long-term Debt, Excluding Current Maturities
Total lease liabilities	$ 113,552

Leases (Supplemental Cash Flow

Leases (Supplemental Cash Flow Information) (Details) $ in Thousands	9 Months Ended
	Dec. 31, 2020USD ($)
Leases [Abstract]
Operating Leases: Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows	$ 31,331
Operating Leases: Right-of-use assets obtained in exchange for lease liabilities	11,846
Finance Leases: Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows	102
Finance Leases: Cash paid for amounts included in the measurement of lease liabilities: Financing cash flows	490
Finance Leases: Right-of-use assets obtained in exchange for lease liabilities	$ 363

Leases (Lease Liability Maturit

Leases (Lease Liability Maturities) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Mar. 31, 2020
Operating Leases
Remainder of 2021	$ 10,022	$ 40,476
2022	36,697	34,750
2023	27,580	23,761
2024	19,037	15,393
2025	14,011	10,780
2026 and thereafter	25,501	15,850
Total lease liabilities, undiscounted	132,848	141,010
Less: Imputed interest	21,246
Total lease liabilities	111,602
Finance Leases
Remainder of 2021	183	468
2022	664	468
2023	485	468
2024	468	468
2025	390	390
2026 and thereafter
Total lease liabilities, undiscounted	2,190	2,262
Less: Imputed interest	240
Total lease liabilities	1,950
Remainder of 2021	10,205	40,944
2022	37,361	35,218
2023	28,065	24,229
2024	19,505	15,861
2025	14,401	11,170
2026 and thereafter	25,501	15,850
Total lease liabilities, undiscounted	135,038	$ 143,272
Less: Imputed interest	21,486
Total lease liabilities	$ 113,552

Leases (Other Information Relat

Leases (Other Information Related to Leases) (Details)	Dec. 31, 2020
Operating Leases
Weighted-average remaining lease term	4 years 9 months 15 days
Weighted-average discount rate	7.39%
Finance Leases
Weighted-average remaining lease term	3 years 8 months 12 days
Weighted-average discount rate	6.53%

Interest Rate Cap Agreements (N

Interest Rate Cap Agreements (Narrative) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Dec. 31, 2020	Mar. 31, 2021	Mar. 31, 2020	Aug. 31, 2018
Derivative [Line Items]
Fair value derivative net liability	$ 32,953
Forecast [Member]
Derivative [Line Items]
Reclassified as interest expense		$ 2,005
Interest Rate Cap Agreements [Member]
Derivative [Line Items]
Notional amount			$ 1,000,000
Effective date	Mar. 31, 2020
Derivative, maturity date	Mar. 31, 2024
Interest Rate Cap Agreements [Member] | Maximum [Member]
Derivative [Line Items]
Variable rate			1.00%
Joint Venture [Member] | Interest Rate Cap Agreements [Member]
Derivative [Line Items]
Notional amount			$ 1,500,000
Effective date	Aug. 31, 2018
Derivative, maturity date	Dec. 31, 2021
Joint Venture [Member] | Interest Rate Cap Agreements [Member] | Minimum [Member]
Derivative [Line Items]
Notional amount				$ 500,000
Joint Venture [Member] | Interest Rate Cap Agreements [Member] | Maximum [Member]
Derivative [Line Items]
Notional amount				$ 1,500,000
Variable rate				1.00%

Interest Rate Cap Agreements (S

Interest Rate Cap Agreements (Schedule of Fair Value of Derivative Instruments) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Mar. 31, 2020
Derivatives Fair Value [Line Items]
Prepaid expenses and other current assets	$ 127,442	$ 117,967
Accrued expenses	(502,992)	(390,294)
Other long-term liabilities	(70,235)	(93,487)
Fair Values of Derivative Instruments Asset (Liability) Derivatives	(32,953)
Designated as Hedging Instrument [Member] | Interest Rate Cap Agreements [Member]
Derivatives Fair Value [Line Items]
Accrued expenses	(28,985)	(28,131)
Other long-term liabilities	(3,288)	(19,277)
Fair Values of Derivative Instruments Asset (Liability) Derivatives	$ (32,273)	$ (47,408)

Interest Rate Cap Agreements _2

Interest Rate Cap Agreements (Schedule of Effect of Derivative Instruments on Statement of Operations) (Details) - Cash Flow Hedging [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Gain/(loss) related to derivative financial instruments recognized in other comprehensive income (loss)	$ (383)		$ (7,119)
Gain/ (loss) related to portion of derivative financial instruments reclassified from accumulated other comprehensive income (loss) to interest expense	$ 302		$ 858

Fair Value Measurements (Narrat

Fair Value Measurements (Narrative) (Details)	Dec. 31, 2020USD ($)
Fair Value Measurements [Abstract]
Contingent consideration liability	$ 0

Fair Value Measurements (Schedu

Fair Value Measurements (Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Mar. 31, 2020
Derivatives Fair Value [Line Items]
Interest rate cap agreements	$ (32,273)	$ (47,408)
Contingent consideration obligation		(3,000)
Total	(32,273)	(50,408)
Significant Other Observable Inputs (Level 2)
Derivatives Fair Value [Line Items]
Interest rate cap agreements	(32,273)	(47,408)
Total	$ (32,273)	(47,408)
Significant Unobservable Inputs (Level 3)
Derivatives Fair Value [Line Items]
Contingent consideration obligation		(3,000)
Total		$ (3,000)

Fair Value Measurements (Reconc

Fair Value Measurements (Reconciliation of Fair Value Derivative Using Unobservable Inputs) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Fair Value Measurements [Abstract]
Balance at beginning of period			$ (3,000)
Gain/(loss) included in contingent consideration			3,000
Balance at end of period

Fair Value Measurements (Carryi

Fair Value Measurements (Carrying Amount and Estimated Fair Value of Financial Instruments) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Dec. 31, 2020	Mar. 31, 2020
Carrying [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	$ 137,357	$ 410,405
Accounts receivable	697,948	740,105
Investment in business purchase option		146,500
Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	137,357	410,405
Accounts receivable	697,948	740,105
Investment in business purchase option		146,500
Significant Other Observable Inputs (Level 2) | Carrying [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt component of tangible equity units	24,268	35,431
Significant Other Observable Inputs (Level 2) | Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt component of tangible equity units	24,801	34,806
Senior Notes due March 1, 2025 [Member] | Significant Other Observable Inputs (Level 2) | Carrying [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt	1,317,689	997,772
Senior Notes due March 1, 2025 [Member] | Significant Other Observable Inputs (Level 2) | Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt	1,348,188	950,000
Senior Credit Facilities [Member] | Significant Other Observable Inputs (Level 2) | Carrying [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt	3,447,156	3,682,457
Senior Credit Facilities [Member] | Significant Other Observable Inputs (Level 2) | Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt	$ 3,529,963	$ 3,452,687

Long-Term Debt (Long-Term Debt

Long-Term Debt (Long-Term Debt - Narrative) (Details) - Senior Notes due March 1, 2025 [Member]	9 Months Ended
	Dec. 31, 2020	Mar. 31, 2020
Debt Instrument [Line Items]
Stated interest rate	5.75%	5.75%
Maturity date	Mar. 1, 2025

Long-Term Debt (Senior Credit F

Long-Term Debt (Senior Credit Facilities - Narrative) (Details) - USD ($)	3 Months Ended	9 Months Ended
	Jun. 30, 2020	Dec. 31, 2020	Mar. 31, 2020
Debt Instrument [Line Items]
Payments on Revolving Facility		$ 250,000,000
Letters of credit		6,194,000	$ 5,118,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Payments on Revolving Facility	$ 250,000,000
Maximum borrowing capacity		785,000,000
Remaining borrowing capacity		$ 778,806,000	$ 529,882,000

Long-Term Debt (Senior Notes Is

Long-Term Debt (Senior Notes Issuance - Narrative) (Details) - USD ($)	9 Months Ended
	Dec. 31, 2020	Apr. 21, 2020	Mar. 31, 2020	Feb. 28, 2017
Senior Notes due March 1, 2025 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	$ 1,325,000,000		$ 1,325,000,000
Stated interest rate	5.75%		5.75%
Maturity date	Mar. 1, 2025
Senior Notes - Issuance 2 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount		$ 325,000,000
Issuance costs		$ 5,364,000
Senior Notes - Issuance 1 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount				$ 1,000,000,000

Long-Term Debt (Term Loan Repay

Long-Term Debt (Term Loan Repayments - Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Dec. 31, 2020
Debt Instrument [Line Items]
Loss on extinguishment of debt	$ 6,145	$ 1,489	$ 7,634
Term Loan Facility [Member]
Debt Instrument [Line Items]
Repayment of debt	$ 215,000	$ 50,000

Long-Term Debt (Schedule of Lon

Long-Term Debt (Schedule of Long-Term Debt) (Details) - USD ($)	9 Months Ended
	Dec. 31, 2020	Mar. 31, 2020
Debt Instrument [Line Items]
Less current portion	$ (37,019,000)	$ (278,779,000)
Long-term debt	4,780,828,000	4,710,294,000
Senior Notes due March 1, 2025 [Member]
Debt Instrument [Line Items]
Long-term debt	1,317,689,000	997,772,000
Debt instrument, face amount	$ 1,325,000,000	$ 1,325,000,000
Stated interest rate	5.75%	5.75%
Maturity date	Mar. 1, 2025
Unamortized doscount	$ 7,311,000	$ 2,228,000
Effective interest rate	5.90%	5.80%
Senior Amortizing Notes due June 30, 2022 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 24,268,000	$ 35,431,000
Debt instrument, face amount	$ 47,367,000	47,367,000
Maturity date	Jun. 30, 2022
Unamortized doscount	$ 405,000	$ 842,000
Effective interest rate	7.44%	7.44%
Other [Member]
Debt Instrument [Line Items]
Long-term debt	$ 28,734,000	$ 23,413,000
Term Loan Facility [Member]
Debt Instrument [Line Items]
Long-term debt	3,447,156,000	3,682,457,000
Debt instrument, face amount	$ 5,100,000,000	5,100,000,000
Maturity date	Mar. 1, 2024
Unamortized doscount	$ 96,094,000	$ 125,793,000
Effective interest rate	4.42%	4.42%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Long-term debt		$ 250,000,000
Debt instrument, face amount	$ 785,000,000	$ 785,000,000
Maturity date	Jul. 3, 2024
Weighted average interest rate		3.25%

Net Income (Loss) Per Share (Co

Net Income (Loss) Per Share (Computation of Basic Net Income (Loss) Per Share of Common Stock) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2020	Dec. 31, 2019
Earnings Per Share [Line Items]
Net income (loss)	$ 2,196	$ (42,622)	$ (58,694)	$ 50,735	$ (93,935)	$ (37,517)	$ (99,120)	$ (80,716)
Weighted average common shares outstanding	304,547,891			124,962,970			304,104,388	108,371,642
Minimum shares issuable under purchase contracts	16,465,704			18,429,325			16,465,704	12,286,217
Total weighted average shares outstanding	321,013,595			143,392,295			320,570,092	120,657,859
Basic net income (loss) per share	$ 0.01			$ 0.35			$ (0.31)	$ (0.67)
Diluted net income per share:
Net income (loss)	$ 2,196	$ (42,622)	$ (58,694)	$ 50,735	$ (93,935)	$ (37,517)	$ (99,120)	$ (80,716)
Number of shares used in basic computation	321,013,595			143,392,295			320,570,092	120,657,859
Weighted average effect of dilutive securities	324,815,524			146,201,860			320,570,092	120,657,859
Diluted net income (loss) per share	$ 0.01			$ 0.35			$ (0.31)	$ (0.67)
Dilutive Shares Issuable Under Purchase Contracts [Member]
Diluted net income per share:
Weighted average effect of dilutive securities				1,450,910
Time-Vesting Options [Member]
Diluted net income per share:
Weighted average effect of dilutive securities	932,344			1,059,868
Restricted Stock Units [Member]
Diluted net income per share:
Weighted average effect of dilutive securities	2,753,810			289,537
Deferred Stock Units [Member]
Diluted net income per share:
Weighted average effect of dilutive securities	95,624			9,250
Employee Stock Purchase Program Shares [Member]
Diluted net income per share:
Weighted average effect of dilutive securities	20,151

Net Income (Loss) Per Share (An

Net Income (Loss) Per Share (Antidilutive Securities Excluded from Diluted Net Income (Loss) Per Share) (Details) - shares	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Dilutive Shares Issuable Under Purchase Contracts [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from diluted net income (loss) per share			1,579,991	1,712,220
Time-Vesting Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from diluted net income (loss) per share			766,432	1,290,327
Restricted Stock Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from diluted net income (loss) per share			2,360,586	605,830
Deferred Stock Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from diluted net income (loss) per share			81,983	6,167

Tax Receivable Agreements (Narr

Tax Receivable Agreements (Narrative) (Details)	9 Months Ended
	Dec. 31, 2020
Tax Receivable Agreements 2009-2011 [Member]
Related Party Transaction [Line Items]
Net cash tax savings, percentage payment provided by agreement	85.00%
McKesson Tax Receivable Agreement [Member]
Related Party Transaction [Line Items]
Net cash tax savings, percentage payment provided by agreement	85.00%
McKesson Tax Receivable Agreement [Member] | Joint Venture [Member]
Related Party Transaction [Line Items]
Maximum percentage ownership allowed to receive net cash tax savings payment	20.00%

Tax Receivable Agreements (Aggr

Tax Receivable Agreements (Aggregate Payments Due Under Tax Receivable Agreements (Details) $ in Thousands	Dec. 31, 2020USD ($)
Related Party Transaction [Line Items]
Remainder of 2021
2022	22,522
2023	58,063
2024	44,338
2025	94,612
Thereafter	236,605
Gross expected payments	456,140
Less: Amounts representing discount	(105,710)
Total tax receivable agreement obligation	350,430
Less: Current portion due (included in accrued expenses)	(22,522)
Tax receivable agreement long-term obligation	327,908
Related Party Tax Receivable Agreements [Member]
Related Party Transaction [Line Items]
Remainder of 2021
2022	11,606
2023	11,349
2024	23,421
2025	50,772
Thereafter	83,221
Gross expected payments	180,369
Less: Amounts representing discount	(69,149)
Total tax receivable agreement obligation	111,220
Less: Current portion due (included in accrued expenses)	(11,606)
Tax receivable agreement long-term obligation	99,614
Other Tax Receivable Agreements [Member]
Related Party Transaction [Line Items]
Remainder of 2021
2022	10,788
2023	10,722
2024	13,549
2025	20,004
Thereafter	61,192
Gross expected payments	116,255
Less: Amounts representing discount	(36,561)
Total tax receivable agreement obligation	79,694
Less: Current portion due (included in accrued expenses)	(10,788)
Tax receivable agreement long-term obligation	68,906
McKesson Tax Receivable Agreement [Member]
Related Party Transaction [Line Items]
Remainder of 2021
2022	128
2023	35,992
2024	7,368
2025	23,836
Thereafter	92,192
Gross expected payments	159,516
Total tax receivable agreement obligation	159,516
Less: Current portion due (included in accrued expenses)	(128)
Tax receivable agreement long-term obligation	$ 159,388

Income Taxes (Summary of Income

Income Taxes (Summary of Income Tax Information) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Income Taxes [Abstract]
Income tax provision (benefit)	$ (4,562)	$ 15,240	$ (31,411)	$ (564)
Effective tax rate	192.80%	23.10%	24.10%	0.70%

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) (Summary Of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2020	Dec. 31, 2019
Accumulated Other Comprehensive Income Loss [Line Items]
Balance	$ 3,209,250	$ 3,239,354	$ 3,285,447	$ 1,886,107	$ 1,131,424	$ 1,132,487	$ 3,285,447	$ 1,132,487
Unrealized gain (loss) on available for sale debt securities of the Joint Venture				134	1,173			1,307
Change associated with foreign currency translation	11,526	5,221	6,353	1,728	1,583	226	23,100	3,537
Balance	3,233,738	3,209,250	3,239,354	1,950,131	1,886,107	1,131,424	3,233,738	1,950,131
Available For Sale Debt Security [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance				1,173
Unrealized gain (loss) on available for sale debt securities of the Joint Venture				134	1,173
Balance				1,307	1,173			1,307
Foreign Currency Translation Adjustment [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance	4,490	(731)	(7,084)	244	(1,339)	(1,565)	(7,084)	(1,565)
Change associated with foreign currency translation	11,526	5,221	6,353	1,728	1,583	226
Balance	16,016	4,490	(731)	1,972	244	(1,339)	16,016	1,972
Cash Flow Hedge [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance	(6,468)	(4,472)	(288)	(8,010)	(6,700)	(1,691)	(288)	(1,691)
Change associated with current period hedging	(383)	(2,277)	(4,459)	289	(1,509)	(5,117)
Reclassification into earnings	302	281	275	1,024	199	(314)
Balance	(6,549)	(6,468)	(4,472)	(6,697)	(8,010)	(6,700)	(6,549)	(6,697)
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance	(1,978)	(5,203)	(7,372)	(6,593)	(8,039)	(3,256)	(7,372)	(3,256)
Unrealized gain (loss) on available for sale debt securities of the Joint Venture				134	1,173
Change associated with foreign currency translation	11,526	5,221	6,353	1,728	1,583	226
Change associated with current period hedging	(383)	(2,277)	(4,459)	289	(1,509)	(5,117)
Reclassification into earnings	302	281	275	1,024	199	(314)
Balance	$ 9,467	$ (1,978)	$ (5,203)	$ (3,418)	$ (6,593)	(8,039)	$ 9,467	(3,418)
Cumulative Effect, Period of Adoption, Adjustment [Member] | ASU 2018-02 [Member] | Cash Flow Hedge [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance						422		422
Cumulative Effect, Period of Adoption, Adjustment [Member] | ASU 2018-02 [Member] | Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance						$ 422		$ 422

Incentive Compensation Plans (N

Incentive Compensation Plans (Narrative) (Details) - Omnibus Incentive Plan [Member] $ in Thousands	3 Months Ended	9 Months Ended
	Dec. 31, 2020USD ($)shares	Dec. 31, 2020USD ($)itemshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense | $	$ 5,518	$ 10,971
Unrecognized compensation expense | $	$ 73,859	$ 73,859
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted in period | shares	107,520	5,832,321
Restricted Stock Units [Member] | Graded Vesting Schedule [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		4 years
Restricted Stock Units [Member] | Cliff Vesting Schedule [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		1 year
Cash Settled Restricted Stock Units CSRSU [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		1 year
Granted in period | shares	0	172,524
Vesting percentage		100.00%
Performance Stock Units PSU [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		3 years
Granted in period | shares	1,177,152	1,177,152
Number of tranches | item		2
eRx Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Liquidity event, percentage threshold of shares sold		25.00%
Compensation expense | $	$ 208	$ 1,675
Unrecognized compensation expense | $	$ 1,185	$ 1,185
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		1 year
Granted in period | shares		1
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		4 years

Related Party Transactions (Nar

Related Party Transactions (Narrative) (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2020USD ($)$ / employee	Dec. 31, 2019USD ($)	Mar. 31, 2020USD ($)
Related Party Transaction [Line Items]
Long-term debt, excluding current portion	$ 4,780,828		$ 4,780,828		$ 4,710,294
Option Agreement [Member[ | McKesson Corporation [Member]
Related Party Transaction [Line Items]
Maximum percentage of ownership in the outstanding units of the Joint Venture allowed for option to acquire can be exercised			5.00%
Transition Services Agreements [Member]
Related Party Transaction [Line Items]
Transition fee income	0	$ 0	$ 283	$ 0
Employer Healthcare Program Agreement [Member]
Related Party Transaction [Line Items]
Service fee per participating employee per month | $ / employee			1
Senior Credit Facilities [Member] | GSO-Managed Funds [Member]
Related Party Transaction [Line Items]
Long-term debt, excluding current portion	$ 168,200		$ 168,200		$ 151,301

Related Party Transactions (Sum

Related Party Transactions (Summary of Revenue Recognized/Amounts Paid Related to Service Provided to/from Portfolio Companies) (Details) - Blackstone Portfolio Companies [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Related Party Transaction [Line Items]
Revenue recognized related to services provided	$ 934		$ 2,815
Amount paid related to services received	$ 3,883		$ 13,341

Segment Reporting (Narrative) (

Segment Reporting (Narrative) (Details)	9 Months Ended
	Dec. 31, 2020segment
Segment Reporting [Abstract]
Number of reportable segments	3

Segment Reporting (Revenue and

Segment Reporting (Revenue and Adjusted EBITDA for each Reportable Segment) (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Net revenue	$ 785,141			$ 2,235,261
Adjusted EBITDA	233,424			662,119
Reconciliation of income (loss) before tax provision (benefit) to Adjusted EBITDA
Income (loss) before income tax provision (benefit)	(2,366)		$ 65,975	(130,531)	$ (81,280)
Amortization of capitalized software developed for sale	460			550
Depreciation and amortization	151,143			436,552
Interest expense	61,439		$ 1	185,733	$ 1
Equity compensation	10,944			34,858
Acquisition accounting adjustments	20,601			103,826
Acquisition and divestiture-related costs	2,661			10,119
Integration and related costs	9,688			27,581
Strategic initiatives, duplicative and transition costs	4,324			13,169
Severance costs	2,591			10,467
Accretion and changes in estimate, net	(2,759)			8,429
Impairment of long-lived assets and other	658			14,418
Gain on sale of businesses	(32,217)			(60,487)
Contingent consideration				(3,000)
Loss on extinguishment of debt	6,145	$ 1,489		7,634
Other non-routine, net	112			2,801
Adjusted EBITDA	233,424			662,119
Postage and Eliminations [Member]
Segment Reporting Information [Line Items]
Net revenue	22,006			73,142
Purchase Accounting Adjustment [Member]
Segment Reporting Information [Line Items]
Net revenue	(24,179)			(118,088)
Software and Analytics [Member]
Segment Reporting Information [Line Items]
Net revenue	372,212			1,118,661
Adjusted EBITDA	120,779			382,103
Reconciliation of income (loss) before tax provision (benefit) to Adjusted EBITDA
Adjusted EBITDA	120,779			382,103
Network Solutions [Member]
Segment Reporting Information [Line Items]
Net revenue	192,588			519,509
Adjusted EBITDA	103,847			268,858
Reconciliation of income (loss) before tax provision (benefit) to Adjusted EBITDA
Adjusted EBITDA	103,847			268,858
Technology-Enabled Services [Member]
Segment Reporting Information [Line Items]
Net revenue	222,514			642,037
Adjusted EBITDA	8,798			11,158
Reconciliation of income (loss) before tax provision (benefit) to Adjusted EBITDA
Adjusted EBITDA	8,798			11,158
Postage [Member]
Segment Reporting Information [Line Items]
Net revenue	49,877			145,672
Postage [Member] | Postage and Eliminations [Member]
Segment Reporting Information [Line Items]
Net revenue	$ 49,877			$ 145,672

Subsequent Events (Narrative) (

Subsequent Events (Narrative) (Details)	Jan. 05, 2021$ / shares
Subsequent Event [Member] | Change Healthcare LLC [Member]
Subsequent Event [Line Items]
Business acquisition, share price	$ 25.75