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Accumulated Other Comprehensive Income ("AOCI") - Summary of Total Changes in AOCI by Component, Net of Tax (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning Balance     $ 358,637  
Amounts reclassified from AOCI:        
Net current period other comprehensive income $ 2,390 $ (10,100) 6,401 $ (7,910)
Ending Balance 398,449   398,449  
Unrecognized Benefit Cost [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning Balance (4,403) (5,407) (4,492) (5,496)
Amounts reclassified from AOCI:        
Amortization of defined benefit pension actuarial gain 89 90 178 179
Net current period other comprehensive income 89 90 178 179
Ending Balance (4,314) (5,317) (4,314) (5,317)
Cumulative Translation Adjustment [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning Balance (61,573) (54,122) (65,495) (56,223)
Other comprehensive income before reclassifications:        
Gain on foreign currency translation adjustment 2,301 (10,190) 6,223 (8,089)
Amounts reclassified from AOCI:        
Net current period other comprehensive income 2,301 (10,190) 6,223 (8,089)
Ending Balance (59,272) (64,312) (59,272) (64,312)
Accumulated Other Comprehensive Loss [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning Balance (65,976) (59,529) (69,987) (61,719)
Other comprehensive income before reclassifications:        
Gain on foreign currency translation adjustment 2,301 (10,190) 6,223 (8,089)
Amounts reclassified from AOCI:        
Amortization of defined benefit pension actuarial gain 89 90 178 179
Net current period other comprehensive income 2,390 (10,100) 6,401 (7,910)
Ending Balance $ (63,586) $ (69,629) $ (63,586) $ (69,629)