XML 63 R48.htm IDEA: XBRL DOCUMENT v3.21.2
Stockholders' Equity - Summary of Reconciliation of Changes in Stockholders' Equity (Detail) - USD ($)
shares in Thousands, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Sep. 30, 2021
Sep. 30, 2020
Beginning Balance $ 404,816 $ 403,544 $ 398,571 $ 381,757 $ 290,152 $ 307,145 $ 398,571 $ 307,145
Common stock issued upon exercise of options 126 29 92 1,555 530 30    
Purchase and retirement of common shares (47) (147) (1,730) (12) (656) (1,408)    
Issuance of common stock in connection with public offering, net of commissions and expenses of $6,200         95,036      
Stock-based compensation 2,218 1,473 1,464 1,865 2,672 1,376    
Net income (loss) (15,015) (1,364) 3,774 1,040 (10,494) (7,328) (12,605) (16,782)
Currency translation adjustments (4,117) 1,403 1,352 1,953 3,726 (9,221) (1,362) (3,542)
Unrealized gain (loss) on marketable securities (161) (122) 21 (266) 791 (442) (262) 83
Ending Balance $ 387,820 $ 404,816 $ 403,544 $ 387,892 $ 381,757 $ 290,152 $ 387,820 $ 387,892
Common Stock [Member]                
Beginning Balance, Shares 72,008 71,956 71,738 71,408 62,026 61,731 71,738 61,731
Common stock issued upon exercise of options, Shares 18 3 11 202 71 6    
Vesting of restricted stock and performance stock units, Shares 16 64 318 2 161 486    
Purchase and retirement of common shares, Shares (4) (15) (111) (1) (50) (197)    
Issuance of common stock in connection with public offering, net of commissions and expenses of $6,200, Shares         9,200      
Ending Balance, Shares 72,038 72,008 71,956 71,611 71,408 62,026 72,038 71,611
Additional Paid-in Capital [Member]                
Beginning Balance $ 506,304 $ 504,949 $ 505,123 $ 499,394 $ 401,812 $ 401,814 $ 505,123 $ 401,814
Common stock issued upon exercise of options 126 29 92 1,555 530 30    
Purchase and retirement of common shares (47) (147) (1,730) (12) (656) (1,408)    
Issuance of common stock in connection with public offering, net of commissions and expenses of $6,200         95,036      
Stock-based compensation 2,218 1,473 1,464 1,865 2,672 1,376    
Ending Balance 508,601 506,304 504,949 502,802 499,394 401,812 508,601 502,802
Accumulated Other Comprehensive Loss [Member]                
Beginning Balance (6,443) (7,724) (9,097) (17,282) (21,799) (12,136) (9,097) (12,136)
Currency translation adjustments (4,117) 1,403 1,352 1,953 3,726 (9,221)    
Unrealized gain (loss) on marketable securities (161) (122) 21 (266) 791 (442)    
Ending Balance (10,721) (6,443) (7,724) (15,595) (17,282) (21,799) (10,721) (15,595)
Accumulated Deficit [Member]                
Beginning Balance (95,045) (93,681) (97,455) (100,355) (89,861) (82,533) (97,455) (82,533)
Net income (loss) (15,015) (1,364) 3,774 1,040 (10,494) (7,328)    
Ending Balance $ (110,060) $ (95,045) $ (93,681) $ (99,315) $ (100,355) $ (89,861) $ (110,060) $ (99,315)