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Nature of Business - Tax Effects Related to the Change in Each Component of Other Comprehensive (Loss) Income (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Equity [Abstract]      
Unrealized gain (loss) on available-for-sale securities, Before-Tax Amount $ (953) $ 1,012 $ 774
Unrealized gain (loss) on available-for-sale securities, Tax (Expense) Benefit 248 (263) (201)
Unrealized gain (loss) on available-for-sale securities, Net-of-Tax Amount (705) 749 573
Reclassification adjustment for amounts related to available-for-sale investments included in net income (loss), Before-Tax Amount 164 (585) (397)
Reclassification adjustment for amounts related to available-for-sale investments included in net income (loss), Tax (Expense) Benefit (43) 152 103
Reclassification adjustment for amounts related to available-for-sale investments included in net income (loss), Net-of-Tax Amount 121 (433) (294)
Defined benefit plan adjustments, Before-Tax Amount 4,984 (1,784) (2,488)
Defined benefit plan adjustments, Tax (Expense) Benefit (1,545) 553 771
Defined benefit plan adjustments, Net-of-Tax Amount 3,439 (1,231) (1,717)
Reclassification adjustment for amounts related to defined benefit plan adjustments included in net income (loss), Before-Tax Amount 825 1,212 771
Reclassification adjustment for amounts related to defined benefit plan adjustments included in net income (loss), Tax (Expense) Benefit (256) (376) (239)
Reclassification adjustment for amounts related to defined benefit plan adjustments included in net income (loss), Net-of-Tax Amount 569 836 532
Foreign currency translation adjustment, Before-Tax Amount (3,699) 4,857 (1,480)
Foreign currency translation adjustment, Net-of-Tax Amount (3,699) 4,857 (1,480)
Total Other Comprehensive (loss) Income, Before-Tax Amount 1,321 4,712 (2,820)
Total Other Comprehensive (Loss) Income, Tax (Expense) Benefit (1,596) 66 434
Other Comprehensive (loss) Income, net of tax $ (275) $ 4,778 $ (2,386)