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Business segments and other information - Segment Result (Detail) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 USD ($) | Sep. 27, 2020 USD ($) | Jun. 28, 2020 USD ($) | Mar. 29, 2020 USD ($) | Dec. 31, 2019 USD ($) | Sep. 29, 2019 USD ($) | Jun. 30, 2019 USD ($) | Mar. 31, 2019 USD ($) | Dec. 31, 2020 USD ($) segment | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Revenues From External Customers And Long Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of reportable segments | segment |  |  |  |  |  |  |  |  | 4 |  |
Net revenues | $ 711,179 | $ 628,301 | $ 567,034 | $ 630,642 | $ 680,952 | $ 648,319 | $ 652,507 | $ 613,584 | $ 2,537,156 | $ 2,595,362 | $ 2,448,383
Operating profit |  |  |  |  |  |  |  |  | 423,068 | 427,254 | 321,704
Depreciation and amortization |  |  |  |  |  |  |  |  | 227,252 | 218,369 | 214,714
Operating Segments |  |  |  |  |  |  |  |  |  |  |
Revenues From External Customers And Long Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Operating profit |  |  |  |  |  |  |  |  | 578,829 | 545,441 | 490,317
Segment Reconciling Items |  |  |  |  |  |  |  |  |  |  |
Revenues From External Customers And Long Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Operating profit |  |  |  |  |  |  |  |  | (155,761) | (118,187) | (168,613)
Americas |  |  |  |  |  |  |  |  |  |  |
Revenues From External Customers And Long Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 151,111 | 153,419 | 146,016
Americas | Operating Segments |  |  |  |  |  |  |  |  |  |  |
Revenues From External Customers And Long Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net revenues |  |  |  |  |  |  |  |  | 1,465,035 | 1,492,274 | 1,351,699
Operating profit |  |  |  |  |  |  |  |  | 401,391 | 319,933 | 255,798
EMEA |  |  |  |  |  |  |  |  |  |  |
Revenues From External Customers And Long Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 47,012 | 44,328 | 47,171
EMEA | Operating Segments |  |  |  |  |  |  |  |  |  |  |
Revenues From External Customers And Long Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net revenues |  |  |  |  |  |  |  |  | 584,859 | 588,043 | 603,813
Operating profit |  |  |  |  |  |  |  |  | 81,348 | 94,424 | 106,090
Asia |  |  |  |  |  |  |  |  |  |  |
Revenues From External Customers And Long Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 13,594 | 14,072 | 12,917
Asia | Operating Segments |  |  |  |  |  |  |  |  |  |  |
Revenues From External Customers And Long Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net revenues |  |  |  |  |  |  |  |  | 267,016 | 294,328 | 286,895
Operating profit |  |  |  |  |  |  |  |  | 51,238 | 73,090 | 78,135
OEM |  |  |  |  |  |  |  |  |  |  |
Revenues From External Customers And Long Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 15,535 | 6,550 | 8,610
OEM | Operating Segments |  |  |  |  |  |  |  |  |  |  |
Revenues From External Customers And Long Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net revenues |  |  |  |  |  |  |  |  | 220,246 | 220,717 | 205,976
Operating profit |  |  |  |  |  |  |  |  | $ 44,852 | $ 57,994 | $ 50,294

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