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Derivative Financial Instruments - Schedule of aggregate notional principal amounts of outstanding derivative financial instruments with related balance sheet exposure (Detail) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Derivative [Line Items]
Balance sheet exposure asset	$ 16,253	$ (17,130)
United States Dollars (sell) Indian Rupees (buy)
Derivative [Line Items]
Notional principal amounts	1,489,500	1,587,500
Balance sheet exposure asset	(1,524)	(25,581)
United States Dollars (sell) Mexican Peso (buy)
Derivative [Line Items]
Notional principal amounts	29,250	24,000
Balance sheet exposure asset	3,194	1,079
United States Dollars (sell) Philippines Peso (buy)
Derivative [Line Items]
Notional principal amounts	78,900	79,200
Balance sheet exposure asset	1,220	(828)
Euro (sell) United States Dollars (buy)
Derivative [Line Items]
Notional principal amounts	173,384	182,163
Balance sheet exposure asset	(1,793)	480
Singapore Dollars (buy) United States Dollars (sell)
Derivative [Line Items]
Notional principal amounts	50,956	50,956
Balance sheet exposure asset	763	166
Euro (sell) Romanian Leu (buy)
Derivative [Line Items]
Notional principal amounts	39,254	51,115
Balance sheet exposure asset	1,312	848
Japanese Yen (sell) Chinese Renminbi (buy)
Derivative [Line Items]
Notional principal amounts	27,385	8,185
Balance sheet exposure asset	248	(327)
United States Dollars (sell) Chinese Renminbi (buy)
Derivative [Line Items]
Notional principal amounts	31,500	41,000
Balance sheet exposure asset	473	605
Pound Sterling (sell) United States Dollars (buy)
Derivative [Line Items]
Notional principal amounts	26,342	32,594
Balance sheet exposure asset	581	1,113
United States Dollars (sell) Hungarian Font (buy)
Derivative [Line Items]
Notional principal amounts	15,000	12,000
Balance sheet exposure asset	1,980	828
Australian Dollars (sell) Indian Rupees (buy)
Derivative [Line Items]
Notional principal amounts	85,495	87,513
Balance sheet exposure asset	2,458	(452)
United States Dollars (Sell) Polish Zloty (buy)
Derivative [Line Items]
Notional principal amounts	21,000	24,000
Balance sheet exposure asset	1,416	1,372
Japanese Yen (sell) United States Dollars (buy)
Derivative [Line Items]
Notional principal amounts	10,000	10,000
Balance sheet exposure asset	(202)	(1,134)
Israeli Shekel (sell) United States Dollars (buy)
Derivative [Line Items]
Notional principal amounts	3,000	3,000
Balance sheet exposure asset	164	3
South African Rand (sell) United States Dollars (buy)
Derivative [Line Items]
Notional principal amounts	21,000	21,000
Balance sheet exposure asset	1,177	(1,652)
United States Dollar Sell Brazilian Real Buy
Derivative [Line Items]
Notional principal amounts	4,000	0
Balance sheet exposure asset	38	0
United States Dollar Sell Costa Rica Colon Buy
Derivative [Line Items]
Notional principal amounts	4,000	0
Balance sheet exposure asset	69	0
Interest rate swaps (floating to fixed)
Derivative [Line Items]
Notional principal amounts	425,276	432,248
Balance sheet exposure asset	$ 4,679	$ 6,350

X

- Definition

Fair value of credit risk derivative asset after deduction of credit risk derivative liability.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4K
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5708775-113959

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+ References

No definition available.

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- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
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-Section 50
-Paragraph 1A
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-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959

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