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Stock-Based Compensation - Summary of Stock Options Outstanding (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 6 Months Ended 12 Months Ended
Jul. 15, 2022
Dec. 31, 2022
Dec. 31, 2022
Dec. 31, 2021
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Number of Options, Stock options outstanding, Beginning Balance     1,721  
Number of Options, Stock options exercised     (519)  
Number of Options, Stock options forfeited     (10)  
Number of Options, Stock options expired     (138)  
Number of Options, Stock options outstanding, Ending Balance   3,148 3,148 1,721
Number of Options, Stock options exercisable   1,711 1,711  
Weighted Average Exercise Price, Stock options outstanding, Beginning Balance     $ 19.37  
Weighted Average Exercise Price, Stock options exercised     15.7  
Weighted Average Exercise Price, Stock options forfeited     10.28  
Weighted Average Exercise Price, Stock options expired     22.73  
Weighted Average Exercise Price, Stock options outstanding, Ending Balance   $ 14.37 14.37 $ 19.37
Weighted Average Exercise Price, Stock options exercisable   $ 15.95 $ 15.95  
Weighted Avg. Remaining Contractual Life in Years, Stock options outstanding     3 years 5 months 1 day 2 years 4 months 20 days
Weighted Avg. Remaining Contractual Life in Years, Stock options exercisable     1 year 11 months 12 days  
Aggregate Intrinsic Value, Stock options outstanding   $ 16,251 $ 16,251 $ 6,669
Aggregate Intrinsic Value, Stock options exercisable   $ 7,104 $ 7,104  
ADVA Optical Networking SE [Member]        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Number of Options, Stock options outstanding, Beginning Balance   2,745    
Number of Stock Options, Stock options replaced   (2,550) 2,094  
Number of Options, Stock options exercised   (102)    
Number of Options, Stock options forfeited   (12)    
Number of Options, Stock options outstanding, Ending Balance 2,745 81 81  
Number of Options, Stock options exercisable   27 27  
Weighted Average Exercise Price, Stock options outstanding, Beginning Balance   $ 9.09    
Weighted Avg. Exercise Price, Stock options replaced   9.8 $ 11.12  
Weighted Average Exercise Price, Stock options exercised   8.02    
Weighted Average Exercise Price, Stock options forfeited   9.57    
Weighted Average Exercise Price, Stock options outstanding, Ending Balance $ 9.09 8.58 8.58  
Weighted Average Exercise Price, Stock options exercisable   $ 7.37 $ 7.37  
Weighted Avg. Remaining Contractual Life in Years, Stock options outstanding 4 years 7 months 6 days   4 years  
Weighted Avg. Remaining Contractual Life in Years, Stock options exercisable     2 years 4 months 20 days  
Aggregate Intrinsic Value, Stock options outstanding $ 27,205 $ 1,222 $ 1,222  
Aggregate Intrinsic Value, Stock options exercisable   $ 432 $ 432