CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
CURRENT ASSETS:
Cash and cash equivalents	$ 511,529	$ 388,570
Restricted cash	0	731,206
Investments—short-term	145,048	199,645
Receivables, net	456,477	334,025
Inventory	298,957	196,625
Prepaid expenses and other current assets	110,895	79,090
Total current assets	1,522,906	1,929,161
PROPERTY, PLANT AND EQUIPMENT, NET	218,284	221,722
INVESTMENTS—LONG-TERM	35,054	145
RIGHT-OF-USE ASSETS	76,111	77,209
INTANGIBLE ASSETS, NET	1,761,456	815
GOODWILL	594,273	83,027
DEFERRED TAX ASSETS	123,041	125,815
OTHER ASSETS	62,000	49,099
TOTAL ASSETS	4,393,125	2,486,993
CURRENT LIABILITIES:
Accounts payable and accrued expenses	332,469	289,565
Accrued sales discounts, allowances and reserves	295,645	247,126
Operating lease liabilities—short-term	7,477	6,746
Current portion of long-term debt	26,500	0
Total current liabilities	662,091	543,437
OPERATING LEASE LIABILITIES—LONG-TERM	61,976	63,253
CONTINGENT CONSIDERATION	136,304	0
LONG-TERM DEBT	1,476,611	0
DEFERRED TAX LIABILITIES	179,575	0
OTHER LONG-TERM LIABILITIES	68,018	61,008
Total liabilities	2,584,575	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 June 30, 2026 and December 31, 2025, respectively.
Ordinary shares, par value, $0.01 per share; 450,000,000 shares authorized; 184,700,718 and 181,011,166 shares issued; and 167,541,198 and 165,607,028 shares outstanding at June 30, 2026 and December 31, 2025, respectively	1,847	1,810
Treasury shares, at cost (17,159,520 and 15,404,138 shares at June 30, 2026 and December 31, 2025, respectively)	(502,521)	(450,287)
Additional paid-in capital	3,112,920	3,004,666
Accumulated other comprehensive loss	(2,923)	(2,100)
Accumulated deficit	(800,773)	(734,794)
Total shareholders’ equity	1,808,550	1,819,295
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	$ 4,393,125	$ 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.