CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
CURRENT ASSETS:
Cash and cash equivalents	$ 351,551	$ 388,570
Restricted cash	0	731,206
Investments—short-term	160,311	199,645
Receivables, net	407,630	334,025
Inventory	336,703	196,625
Prepaid expenses and other current assets	102,449	79,090
Total current assets	1,358,644	1,929,161
PROPERTY, PLANT AND EQUIPMENT, NET	220,587	221,722
INVESTMENTS—LONG-TERM	26,363	145
RIGHT-OF-USE ASSETS	78,248	77,209
INTANGIBLE ASSETS, NET	1,784,040	815
GOODWILL	596,029	83,027
DEFERRED TAX ASSETS	134,808	125,815
OTHER ASSETS	59,357	49,099
TOTAL ASSETS	4,258,076	2,486,993
CURRENT LIABILITIES:
Accounts payable and accrued expenses	292,579	289,565
Accrued sales discounts, allowances and reserves	272,843	247,126
Operating lease liabilities—short-term	7,577	6,746
Current portion of long-term debt	26,500	0
Total current liabilities	599,499	543,437
OPERATING LEASE LIABILITIES—LONG-TERM	63,746	63,253
CONTINGENT CONSIDERATION	109,494	0
LONG-TERM DEBT	1,483,837	0
DEFERRED TAX LIABILITIES	181,920	0
OTHER LONG-TERM LIABILITIES	68,049	61,008
Total liabilities	2,506,545	667,698
COMMITMENTS AND CONTINGENT LIABILITIES (Note 18)
SHAREHOLDERS’ EQUITY:
Preferred shares, par value, $0.01 per share: 50,000,000 shares authorized; and zero issued and outstanding at March 31, 2026 and December 31, 2025, respectively.
Ordinary shares, par value, $0.01 per share; 450,000,000 shares authorized; 183,592,868 and 181,011,166 shares issued; and 166,462,299 and 165,607,028 shares outstanding at March 31, 2026 and December 31, 2025, respectively	1,836	1,810
Treasury shares, at cost (17,130,569 and 15,404,138 shares at March 31, 2026 and December 31, 2025, respectively)	(501,425)	(450,287)
Additional paid-in capital	3,055,302	3,004,666
Accumulated other comprehensive loss	(2,908)	(2,100)
Accumulated deficit	(801,274)	(734,794)
Total shareholders’ equity	1,751,531	1,819,295
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	$ 4,258,076	$ 2,486,993

Carrying value as of the balance sheet date of obligations relating to sales discounts, allowances and reserves.

No definition available.

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Namespace Prefix:	alks_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.