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Segment Information - Pre-Tax Depreciation and Amortization by Operating Segment (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Segment Reporting Information [Line Items]        
Depreciation and amortization of property and equipment $ 5,665 $ 7,319 $ 18,054 $ 21,820
Amortization of intangible assets 7,988 9,433 24,097 29,555
Depreciation and amortization, total 13,653 16,752 42,151 51,375
North America Segment [Member]        
Segment Reporting Information [Line Items]        
Depreciation and amortization of property and equipment 4,376 5,907 14,047 17,559
Amortization of intangible assets 7,372 8,730 22,229 27,594
EMEA Segment [Member]        
Segment Reporting Information [Line Items]        
Depreciation and amortization of property and equipment 1,141 1,269 3,575 3,846
Amortization of intangible assets 494 585 1,491 1,625
APAC Segment [Member]        
Segment Reporting Information [Line Items]        
Depreciation and amortization of property and equipment 148 143 432 415
Amortization of intangible assets $ 122 $ 118 $ 377 $ 336