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ORGANISATION AND NATURE OF OPERATIONS (Details)
 3 Months Ended 9 Months Ended 11 Months Ended
Mar. 23, 2022
USD ($)
$ / shares
shares
Aug. 12, 2021
USD ($)
$ / shares
shares
Sep. 30, 2022
USD ($)
$ / shares
shares
Sep. 30, 2022
USD ($)
$ / shares
shares
Dec. 31, 2021
USD ($)
$ / shares
shares
Nov. 01, 2022
USD ($)
Mar. 14, 2022
USD ($)
$ / shares
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS, LIQUIDITY, AND GOING CONCERN CONSIDERATION              
Cash           $ 95,800,000  
Ligand | Avista Public Acquisition Corp. II [Member] | Separation And Distribution Agreement              
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS, LIQUIDITY, AND GOING CONCERN CONSIDERATION              
Percentage of common stock shares issued under distribution 100            
Common shares, par value (in dollars per share) | $ / shares $ 0.001            
Capital contributed, net of expenses $ 15,000,000            
Avista Public Acquisition Corp. II [Member]              
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS, LIQUIDITY, AND GOING CONCERN CONSIDERATION              
Condition for future business combination, number of businesses, minimum       1 1    
Share issued price per unit | $ / shares   $ 10          
Proceeds from sale of warrants   $ 12,350,000          
Cash held outside of the Trust Account     $ 19,847 $ 19,847 $ 189,971    
Gross proceeds   230,000,000          
Maturity term of U.S. government securities       185 days 185 days    
Months to complete initial business combination       18 months 18 months    
Obligation to redeem public shares if entity does not complete a business combination (as a percent)       100.00% 100.00%    
Threshold business days for redemption of public shares       10 days 10 days    
Maximum net interest to pay dissolution expenses       $ 100,000 $ 100,000    
Common shares, par value (in dollars per share) | $ / shares $ 0.0001            
Working capital deficit       9,843,540      
Maximum additional aggregate purchase price     100,000,000        
Amount deposited in an operating account for the working capital needs       $ 2,000,000      
Number of additional financing public shares issued upon business combination | shares       21,713,864      
Offering costs   13,662,256     13,662,256    
Underwriting fees   4,600,000     4,600,000    
Deferred underwriting fee payable   8,050,000 $ 4,025,000 $ 4,025,000 8,050,000    
Other offering costs   $ 1,012,256     $ 1,012,256    
Threshold percentage of public shares subject to redemption without the company's prior written consent         15.00%    
Working capital surplus         $ 496,302    
Proceeds from the Initial Public offering and sale of the private placement warrants         $ 2,000,000    
Avista Public Acquisition Corp. II [Member] | OmniAb              
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS, LIQUIDITY, AND GOING CONCERN CONSIDERATION              
Business combination shares voted     0.0067% 0.0067%      
Avista Public Acquisition Corp. II [Member] | Related Party Loans              
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS, LIQUIDITY, AND GOING CONCERN CONSIDERATION              
Price of warrant | $ / shares     $ 1.5 $ 1.5 $ 1.5   $ 1.5
Maximum borrowing capacity of related party promissory note     $ 750,000 $ 750,000     $ 750,000
Outstanding balance of related party note     $ 750,000 $ 750,000      
Avista Public Acquisition Corp. II [Member] | Amended and Restated Forward Purchase Agreement              
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS, LIQUIDITY, AND GOING CONCERN CONSIDERATION              
Number of warrants issued | shares 1,666,667            
Warrant [Member] | Avista Public Acquisition Corp. II [Member]              
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS, LIQUIDITY, AND GOING CONCERN CONSIDERATION              
Gross proceeds         $ 100,000,000    
Share price | $ / shares     $ 11.5 $ 11.5 $ 11.5    
Private Placement Warrants | Avista Public Acquisition Corp. II [Member]              
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS, LIQUIDITY, AND GOING CONCERN CONSIDERATION              
Price of warrant | $ / shares   $ 1.5          
Private Placement Warrants | Avista Public Acquisition Corp. II [Member] | Amended and Restated Forward Purchase Agreement              
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS, LIQUIDITY, AND GOING CONCERN CONSIDERATION              
Proceeds from sale of warrants $ 15,000,000            
IPO [Member] | Avista Public Acquisition Corp. II [Member]              
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS, LIQUIDITY, AND GOING CONCERN CONSIDERATION              
Number of units issued | shares   23,000,000     15,900,000    
Share issued price per unit | $ / shares         $ 10    
Number of warrants issued | shares   15,900,000          
Share price | $ / shares     $ 10.25 $ 10.25 $ 10.25    
Months to complete initial business combination       18 months 18 months    
Obligation to redeem public shares if entity does not complete a business combination (as a percent)       100.00% 100.00%    
Minimum net tangible assets upon consummation of the business combination     $ 5,000,001 $ 5,000,001 $ 5,000,001    
IPO [Member] | Warrant [Member] | Avista Public Acquisition Corp. II [Member]              
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS, LIQUIDITY, AND GOING CONCERN CONSIDERATION              
Number of units issued | shares         3,333,333    
IPO [Member] | Private Placement Warrants | Avista Public Acquisition Corp. II [Member]              
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS, LIQUIDITY, AND GOING CONCERN CONSIDERATION              
Number of units issued | shares         8,233,333    
Number of warrants issued | shares   8,233,333          
Gross proceeds   $ 235,750,000     $ 235,750,000    
Share price | $ / shares   $ 10.25     $ 10.25    
Private Placement [Member] | Private Placement Warrants | Avista Public Acquisition Corp. II [Member]              
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS, LIQUIDITY, AND GOING CONCERN CONSIDERATION              
Number of warrants issued | shares   8,233,333     8,233,333    
Price of warrant | $ / shares   $ 1.5     $ 1.5    
Proceeds from sale of warrants   $ 12,350,000     $ 12,350,000    
Over-Allotment Option [Member] | Avista Public Acquisition Corp. II [Member]              
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS, LIQUIDITY, AND GOING CONCERN CONSIDERATION              
Number of units issued | shares   3,000,000          
Over-Allotment Option [Member] | Private Placement Warrants | Avista Public Acquisition Corp. II [Member]              
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS, LIQUIDITY, AND GOING CONCERN CONSIDERATION              
Number of warrants issued | shares   900,000          
Common Class A [Member] | Avista Public Acquisition Corp. II [Member]              
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS, LIQUIDITY, AND GOING CONCERN CONSIDERATION              
Common shares, par value (in dollars per share) | $ / shares     $ 0.0001 $ 0.0001 $ 0.0001    
Common Class A [Member] | IPO [Member] | Avista Public Acquisition Corp. II [Member]              
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS, LIQUIDITY, AND GOING CONCERN CONSIDERATION              
Number of units issued | shares   23,000,000          
Share issued price per unit | $ / shares   $ 10          
Number of shares issued | shares       23,000,000      
Proceeds from Issuance Initial Public Offering   $ 230,000,000          
Common Class A [Member] | Over-Allotment Option [Member] | Avista Public Acquisition Corp. II [Member]              
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS, LIQUIDITY, AND GOING CONCERN CONSIDERATION              
Number of units issued | shares   3,000,000          
APAC Common Stock | OmniAb Inc | Avista Public Acquisition Corp. II [Member]              
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS, LIQUIDITY, AND GOING CONCERN CONSIDERATION              
Number of Class A common stock issued upon conversion of each share (in shares) | shares       1      
Number of shares in a unit | shares       1      
APAC Common Stock | OmniAb Inc | Avista Public Acquisition Corp. II [Member] | First Requirements              
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS, LIQUIDITY, AND GOING CONCERN CONSIDERATION              
Volume-weighted average price per share | $ / shares     12.5 $ 12.5      
Number of days at volume-weighted average price to trigger vesting       20 days      
Number of consecutive days volume-weighted average price to be within       30 days      
APAC Common Stock | OmniAb Inc | Avista Public Acquisition Corp. II [Member] | Second Requirements              
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS, LIQUIDITY, AND GOING CONCERN CONSIDERATION              
Volume-weighted average price per share | $ / shares     $ 15 $ 15      
Number of days at volume-weighted average price to trigger vesting       20 days      
Number of consecutive days volume-weighted average price to be within       30 days      
APAC Common Stock | Warrant [Member] | OmniAb Inc | Avista Public Acquisition Corp. II [Member]              
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS, LIQUIDITY, AND GOING CONCERN CONSIDERATION              
Number of warrants in a unit | shares       1      
Earnout Stock | OmniAb Inc | Avista Public Acquisition Corp. II [Member] | First Requirements              
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS, LIQUIDITY, AND GOING CONCERN CONSIDERATION              
Percent of shares vested upon the combined company's achievement of the post-transaction volume-weighted average price       50.00%      
Sponsor | OmniAb Inc | Avista Public Acquisition Corp. II [Member] | Amended and Restated Forward Purchase Agreement              
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS, LIQUIDITY, AND GOING CONCERN CONSIDERATION              
Additional aggregate purchase price       $ 100,000,000      
Sponsor | Avista Public Acquisition Corp. II [Member] | Amended and Restated Forward Purchase Agreement              
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS, LIQUIDITY, AND GOING CONCERN CONSIDERATION              
Number of warrants issued | shares 1,500,000            
Gross proceeds $ 15,000,000            
Additional aggregate purchase price $ 86,729,340     $ 100,000,000      
Sponsor purchased backstop | shares 8,672,934            
Shares backstop warrants | shares 1,445,489            
Maximum additional aggregate purchase price $ 100,000,000            
Sponsor | Warrant [Member] | Avista Public Acquisition Corp. II [Member] | Amended and Restated Forward Purchase Agreement              
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS, LIQUIDITY, AND GOING CONCERN CONSIDERATION              
Number of warrants issued | shares 1,666,667   1,666,667 1,666,667      
Additional number of warrants | shares 1,666,667            
Sponsor | APAC Common Stock | Avista Public Acquisition Corp. II [Member] | Amended and Restated Forward Purchase Agreement              
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS, LIQUIDITY, AND GOING CONCERN CONSIDERATION              
Number of units issued | shares 1,500,000            
Number of shares issued | shares       1,500,000      
Additional number of common stock | shares 10,000,000            
Sponsor | Earnout Stock | Avista Public Acquisition Corp. II [Member] | Sponsor Insider Agreement              
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS, LIQUIDITY, AND GOING CONCERN CONSIDERATION              
Maximum number of shares subject to the price-based vesting conditions | shares     1,916,667 1,916,667