FINANCIAL DERIVATIVES AND HEDGING ACTIVITIES - Outstanding Derivatives Used to Hedge Foreign Exchange Risks (Details) ₱ in Thousands, € in Thousands, ¥ in Thousands, £ in Thousands, SFr in Thousands, $ in Thousands, $ in Thousands	Jun. 30, 2023 EUR (€)	Jun. 30, 2023 USD ($)	Jun. 30, 2023 PHP (₱)	Jun. 30, 2023 CAD ($)	Jun. 30, 2023 GBP (£)	Jun. 30, 2023 CHF (SFr)	Jun. 30, 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 (¥)
U.S. Dollar / British Pound | Not Designated as Hedging | Sell/Buy - sell notional
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative notional amount		$ 22,400							$ 28,600
Euro / U.S. Dollar | Not Designated as Hedging | Sell/Buy - sell notional
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative notional amount | €	€ 9,700							€ 9,630
Euro / U.S. Dollar | Not Designated as Hedging | Sell/Buy - buy notional
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative notional amount | €	1,750							2,900
British Pound / Euro | Not Designated as Hedging | Sell/Buy - sell notional
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative notional amount | £					£ 3,000							£ 2,800
British Pound / Euro | Not Designated as Hedging | Sell/Buy - buy notional
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative notional amount | £					6,400							15,950
U.S. Dollar / Swiss Franc | Not Designated as Hedging | Sell/Buy - sell notional
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative notional amount		11,700										0
British Pound / Swiss Franc | Not Designated as Hedging | Sell/Buy - sell notional
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative notional amount | £					£ 1,900							2,535
Euro / Swiss Franc | Not Designated as Hedging | Sell/Buy - sell notional
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative notional amount	6,800											£ 0
Swiss Franc / Euro | Not Designated as Hedging | Sell/Buy - buy notional
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative notional amount | SFr						SFr 0							SFr 2,250
Swiss Franc / U.S. Dollar | Not Designated as Hedging | Sell/Buy - buy notional
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative notional amount | SFr						SFr 0							SFr 930
Chinese Yuan / U.S. Dollar | Not Designated as Hedging | Sell/Buy - buy notional
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative notional amount | ¥							¥ 2,680							¥ 4,400
Cash Flow Hedges | Euro / British Pound | Designated as Hedging | Sell/Buy - sell notional
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative notional amount | €	€ 13,504							€ 18,961
Cash Flow Hedges | U.S. Dollar / British Pound | Designated as Hedging | Sell/Buy - sell notional
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative notional amount		27,780							34,501
Cash Flow Hedges | U.S. Dollar / Euro | Designated as Hedging | Sell/Buy - sell notional
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative notional amount		1							824
Cash Flow Hedges | Euro / Philippine Peso | Designated as Hedging | Sell/Buy - buy notional
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative notional amount | ₱			₱ 1,130,029							₱ 1,030,114
Cash Flow Hedges | British Pound / Philippine Peso | Designated as Hedging | Sell/Buy - buy notional
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative notional amount | ₱			₱ 808,909							₱ 1,144,839
Cash Flow Hedges | Euro / U.S. Dollar | Designated as Hedging | Sell/Buy - buy notional
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative notional amount		$ 91,934							$ 78,435
Cash Flow Hedges | U.S. Dollar / Canadian Dollar | Designated as Hedging | Sell/Buy - buy notional
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative notional amount				$ 31,192							$ 36,423