Stock-Based Compensation - Summary of Stock Options Outstanding (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of Stock Options, Stock options outstanding, Beginning Balance	3,148
Number of Stock Options, Stock options exercised	(6)
Number of Stock Options, Stock options forfeited	(21)
Number of Stock Options, Stock options expired	(7)
Number of Stock Options, Stock options outstanding, Ending Balance	3,114	3,148
Number of Stock Options, Stock options exercisable	1,698
Weighted Avg. Exercise Price, Stock options outstanding, Beginning Balance	$ 14.37
Weighted Avg. Exercise Price, Stock options exercised	9.82
Weighted Avg. Exercise Price, Stock options forfeited	12.21
Weighted Avg. Exercise Price, Stock options expired	19
Weighted Avg. Exercise Price, Stock options outstanding, Ending Balance	14.38	$ 14.37
Weighted Avg. Exercise Price, Stock options exercisable	$ 15.96
Weighted Avg. Remaining Contractual Life In Years, Stock options outstanding	3 years 2 months 1 day	3 years 5 months 1 day
Weighted Avg. Remaining Contractual Life in Years, Stock options exercisable	1 year 8 months 12 days
Aggregate Intrinsic Value, Stock options outstanding	$ 16,251
Aggregate Intrinsic Value, Stock options outstanding	10,198	$ 16,251
Aggregate Intrinsic Value, Stock options exercisable	$ 4,436
ADVA Optical Networking SE [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of Stock Options, Stock options outstanding, Beginning Balance	81
Number of Stock Options, Stock options outstanding, Ending Balance	81	81
Number of Stock Options, Stock options exercisable	27
Weighted Avg. Exercise Price, Stock options outstanding, Beginning Balance	$ 8.58
Weighted Avg. Exercise Price, Stock options outstanding, Ending Balance	8.67	$ 8.58
Weighted Avg. Exercise Price, Stock options exercisable	$ 7.45
Weighted Avg. Remaining Contractual Life In Years, Stock options outstanding	3 years 9 months	4 years
Weighted Avg. Remaining Contractual Life in Years, Stock options exercisable	2 years 1 month 20 days
Aggregate Intrinsic Value, Stock options outstanding	$ 1,222
Aggregate Intrinsic Value, Stock options outstanding	1,198	$ 1,222
Aggregate Intrinsic Value, Stock options exercisable	$ 424