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Financial Derivatives and Hedging Activities - Outstanding Derivatives Used to Hedge Foreign Exchange Risks (Detail) ₱ in Thousands, € in Thousands, ¥ in Thousands, £ in Thousands, SFr in Thousands, $ in Thousands, $ in Thousands | Mar. 31, 2023 EUR (€) | Mar. 31, 2023 USD ($) | Mar. 31, 2023 PHP (₱) | Mar. 31, 2023 CAD ($) | Mar. 31, 2023 GBP (£) | Mar. 31, 2023 CHF (SFr) | Mar. 31, 2023 CNY (¥) | Dec. 31, 2022 EUR (€) | Dec. 31, 2022 USD ($) | Dec. 31, 2022 PHP (₱) | Dec. 31, 2022 CAD ($) | Dec. 31, 2022 GBP (£) | Dec. 31, 2022 CHF (SFr) | Dec. 31, 2022 CNY (¥)
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U.S. Dollar / British Pound | Not Designated as Hedging | Sell Notional |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative Instruments And Hedging Activities Disclosures [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount |  | $ 28,100 |  |  |  |  |  |  | $ 28,600 |  |  |  |  |
Euro / U.S. Dollar | Not Designated as Hedging | Sell Notional |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative Instruments And Hedging Activities Disclosures [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | € | € 10,000 |  |  |  |  |  |  | € 9,630 |  |  |  |  |  |
Euro / U.S. Dollar | Not Designated as Hedging | Buy Notional |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative Instruments And Hedging Activities Disclosures [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | € | 7,700 |  |  |  |  |  |  | 2,900 |  |  |  |  |  |
British Pound / Euro | Not Designated as Hedging | Sell Notional |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative Instruments And Hedging Activities Disclosures [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | £ |  |  |  |  | £ 1,410 |  |  |  |  |  |  | £ 2,800 |  |
British Pound / Euro | Not Designated as Hedging | Buy Notional |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative Instruments And Hedging Activities Disclosures [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | £ |  |  |  |  | 13,700 |  |  |  |  |  |  | 15,950 |  |
British Pound / Swiss Franc | Not Designated as Hedging | Sell Notional |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative Instruments And Hedging Activities Disclosures [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | £ |  |  |  |  | £ 2,700 |  |  |  |  |  |  | £ 2,535 |  |
Swiss Franc / Euro | Not Designated as Hedging | Buy Notional |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative Instruments And Hedging Activities Disclosures [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | SFr |  |  |  |  |  | SFr 2,560 |  |  |  |  |  |  | SFr 2,250 |
Swiss Franc / U.S. Dollar | Not Designated as Hedging | Buy Notional |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative Instruments And Hedging Activities Disclosures [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | SFr |  |  |  |  |  | SFr 1,720 |  |  |  |  |  |  | SFr 930 |
Chinese Yuan / U.S. Dollar | Not Designated as Hedging | Buy Notional |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative Instruments And Hedging Activities Disclosures [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | ¥ |  |  |  |  |  |  | ¥ 4,330 |  |  |  |  |  |  | ¥ 4,400
Cash Flow Hedges | Euro / British Pound | Designated as Hedging | Sell Notional |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative Instruments And Hedging Activities Disclosures [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | € | € 14,990 |  |  |  |  |  |  | € 18,961 |  |  |  |  |  |
Cash Flow Hedges | U.S. Dollar / British Pound | Designated as Hedging | Sell Notional |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative Instruments And Hedging Activities Disclosures [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount |  | 27,204 |  |  |  |  |  |  | 34,501 |  |  |  |  |
Cash Flow Hedges | U.S. Dollar / Euro | Designated as Hedging | Sell Notional |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative Instruments And Hedging Activities Disclosures [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount |  | 91 |  |  |  |  |  |  | 824 |  |  |  |  |
Cash Flow Hedges | Euro / Philippine Peso | Designated as Hedging | Buy Notional |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative Instruments And Hedging Activities Disclosures [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | ₱ |  |  | ₱ 879,092 |  |  |  |  |  |  | ₱ 1,030,114 |  |  |  |
Cash Flow Hedges | British Pound / Philippine Peso | Designated as Hedging | Buy Notional |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative Instruments And Hedging Activities Disclosures [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | ₱ |  |  | ₱ 910,029 |  |  |  |  |  |  | ₱ 1,144,839 |  |  |  |
Cash Flow Hedges | Euro / U.S. Dollar | Designated as Hedging | Buy Notional |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative Instruments And Hedging Activities Disclosures [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount |  | $ 82,901 |  |  |  |  |  |  | $ 78,435 |  |  |  |  |
Cash Flow Hedges | U.S. Dollar / Canadian Dollar | Designated as Hedging | Buy Notional |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative Instruments And Hedging Activities Disclosures [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount |  |  |  | $ 29,987 |  |  |  |  |  |  | $ 36,423 |  |  |

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