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Unaudited Quarterly Results - Schedule of Unaudited Quarterly Results (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2022
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2021
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Net sales $ 858,510 $ 708,555 $ 714,319 $ 690,572 $ 836,449 $ 659,233 $ 681,647 $ 608,545 $ 2,971,956 $ 2,785,874 $ 2,365,365
Costs and operating expenses:                      
Cost of sales 348,190 307,101 307,206 285,685 351,004 271,128 280,254 254,147 1,248,182 1,156,533  
Selling and administrative expenses 174,257 164,417 161,877 157,475 173,014 152,545 158,213 143,196 658,026 626,968 553,698
Research and development expenses 48,277 43,435 44,006 40,472 43,331 41,986 44,949 38,092 176,190 168,358 140,777
Purchased intangibles amortization 1,503 1,592 1,598 1,673 1,735 1,759 1,809 1,840 6,366 7,143 10,587
Litigation provisions         5,165   0 0 0 5,165 1,180
Acquired in-process research and development       9,797         9,797    
Total costs and operating expenses 572,227 516,545 514,687 495,102 574,249 467,418 485,225 437,275 2,098,561 1,964,167 1,719,876
Operating income 286,283 192,010 199,632 195,470 262,200 191,815 196,422 171,270 873,395 821,707 645,489
Other income (expense), net (372) 895 1,535 170 (870) (607) 9,321 9,359 2,228 17,203  
Interest expense (13,899) (12,420) (11,419) (11,059) (10,884) (11,081) (12,027) (10,946) (48,797) (44,938) (49,070)
Interest income 3,484 2,896 2,526 2,114 1,874 2,548 3,698 4,101 11,020 12,221 16,270
Income before income taxes 275,496 183,381 192,274 186,695 252,320 182,675 197,414 173,784 837,846 806,193 610,914
Provision for income taxes 48,434 27,383 27,410 26,864 36,081 21,490 30,122 25,657 130,091 113,350 89,343
Net income $ 227,062 $ 155,998 $ 164,864 $ 159,831 $ 216,239 $ 161,185 $ 167,292 $ 148,127 $ 707,755 $ 692,843 $ 521,571
Net income per basic common share $ 3.83 $ 2.61 $ 2.74 $ 2.64 $ 3.55 $ 2.63 $ 2.71 $ 2.38 $ 11.8 $ 11.25 $ 8.4
Weighted-average number of basic common shares 59,329 59,801 60,206 60,580 60,984 61,359 61,685 62,260 59,985 61,575 62,094
Net income per diluted common share $ 3.81 $ 2.6 $ 2.72 $ 2.62 $ 3.52 $ 2.6 $ 2.69 $ 2.37 $ 11.73 $ 11.17 $ 8.36
Weighted-average number of diluted common shares and equivalents 59,644 60,081 60,510 60,952 61,423 61,888 62,157 62,632 60,331 62,028 62,414