Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Equity Transactions - Additional Information (Detail)

v3.19.3.a.u2
Equity Transactions - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 12 Months Ended
Dec. 10, 2018
Jun. 30, 2019
May 31, 2019
Aug. 31, 2018
Mar. 31, 2019
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Number of shares issued in transaction     8,100,000 11,300,000        
Sale of stock, price per share (in dollars per share)     $ 21.25 $ 12.75        
Proceeds from issuance of common stock     $ 171,100 $ 143,700   $ 11,202 $ 9,023 $ 2,586
Sale of stock, consideration received     160,800 135,100        
Payments of stock issuance costs     $ 10,300 $ 8,600        
Genoptix                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Common stock issued (in shares) 1,000,000              
Payment for working capital adjustment $ 2,000       $ 2,400 2,400    
Payment for working capital adjustment, cash portion   $ 400       $ 400    
Working capital adjustment, return of shares (in shares)   99,524            
Genoptix | Restricted Stock                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Common stock issued (in shares) 1,000,000.0