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Net Revenues - Details of Company's Contract Cost Assets (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Opening balance	$ 205,498
Closing balance	211,066
Sales Incentive Programs
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Opening balance	35,366	$ 25,891
Closing balance	34,417	36,380
Amortization	4,119	4,107
Process Transition Activities
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Opening balance	170,132	134,302
Closing balance	176,649	144,423
Amortization	$ 13,533	$ 11,510

X

- Definition

Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 340
-SubTopic 40
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=68051541&loc=SL49131252-203054

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- Definition

Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 340
-SubTopic 40
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=68051541&loc=SL49131252-203054

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+ References

No definition available.

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