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Acquisitions - Additional Information (Detail) - USD ($) |  |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Jul. 31, 2017 | Sep. 19, 2016 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Estimated amortization period |  |  |  |  |  |  |  |  |  |  | 15 years |  |
Goodwill |  |  | $ 413,640,000 |  |  |  | $ 422,185,000 |  |  |  | $ 413,640,000 | $ 422,185,000 | $ 333,276,000
Strategic transaction costs (Note 13) |  |  |  |  |  |  |  |  |  |  | 400,000 | 4,200,000 | 2,500,000
Revenues |  |  | 361,783,000 | $ 331,096,000 | $ 339,331,000 | $ 325,894,000 | $ 346,140,000 | $ 296,129,000 | $ 288,775,000 | $ 265,765,000 | 1,358,104,000 | 1,196,809,000 | 1,149,530,000
Net income (loss) |  |  |  |  |  |  |  |  |  |  | 124,150,000 | 26,027,000 | 91,936,000
Depreciation |  |  |  |  |  |  |  |  |  |  | 26,900,000 | 28,000,000 | 27,000,000
Amortization primarily related to intangible assets |  |  |  |  |  |  |  |  |  |  | 10,509,000 | 9,434,000 |
Americas |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  | 273,200,000 |  |  |  |  |  |  |  | 273,200,000 |  |
Revenues |  |  |  |  |  |  |  |  |  |  | 854,287,000 | 736,847,000 | 678,433,000
Globe Holding Company LLC |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock acquired (as a percent) | 100.00% |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred | $ 215,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred, Working Capital Adjustments | 1,400,000 |  |  |  |  |  |  |  |  |  |  |  |
Contingent consideration | $ 0 |  |  |  |  |  |  |  |  |  |  |  |
Estimated amortization period | 5 years |  |  |  |  |  |  |  |  |  |  |  |
Future amortization expense, year one |  |  | 4,100,000 |  |  |  |  |  |  |  | 4,100,000 |  |
Future amortization expense, year two |  |  | 4,100,000 |  |  |  |  |  |  |  | 4,100,000 |  |
Future amortization expense, year three |  |  | 4,100,000 |  |  |  |  |  |  |  | 4,100,000 |  |
Future amortization expense, year four |  |  | 3,200,000 |  |  |  |  |  |  |  | 3,200,000 |  |
Future amortization expense, year five |  |  | 2,000,000 |  |  |  |  |  |  |  | 2,000,000 |  |
Estimated future depreciation expense, year one |  |  | 1,000,000 |  |  |  |  |  |  |  | 1,000,000 |  |
Estimated future depreciation expense, year two |  |  | 1,000,000 |  |  |  |  |  |  |  | 1,000,000 |  |
Estimated future depreciation expense, year three |  |  | 1,000,000 |  |  |  |  |  |  |  | 1,000,000 |  |
Estimated future depreciation expense, year four |  |  | 1,000,000 |  |  |  |  |  |  |  | 1,000,000 |  |
Estimated future depreciation expense, year five |  |  | 1,000,000 |  |  |  |  |  |  |  | 1,000,000 |  |
Goodwill | $ 74,500,000 |  |  |  |  |  |  |  |  |  |  |  |
Strategic transaction costs (Note 13) |  |  |  |  |  |  |  |  |  |  |  | 1,800,000 |
Revenues |  |  |  |  |  |  |  |  |  |  | 113,900,000 | 46,100,000 |
Net income (loss) |  |  |  |  |  |  |  |  |  |  | 13,300,000 | 3,700,000 |
Depreciation |  |  |  |  |  |  |  |  |  |  | 1,000,000 | 500,000 |
Amortization primarily related to intangible assets |  |  |  |  |  |  |  |  |  |  | 4,100,000 | 1,700,000 |
Net income related to acquiree adjusted to remove transaction costs |  |  |  |  |  |  |  |  |  |  | 13,600,000 | 4,900,000 |
Globe Holding Company LLC | Americas |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill | $ 74,500,000 |  |  |  |  |  |  |  |  |  |  |  |
Senscient, Incorporated |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock acquired (as a percent) |  | 0.00% |  |  |  |  |  |  |  |  |  |  |
Contingent consideration |  | $ 0 |  |  |  |  |  |  |  |  |  |  |
Purchase price for acquisition |  | 19,100,000 |  |  |  |  |  |  |  |  |  |  |
Future amortization expense, year one |  |  | 700,000 |  |  |  |  |  |  |  | 700,000 |  |
Future amortization expense, year two |  |  | 700,000 |  |  |  |  |  |  |  | 700,000 |  |
Future amortization expense, year three |  |  | 500,000 |  |  |  |  |  |  |  | 500,000 |  |
Future amortization expense, year four |  |  | 200,000 |  |  |  |  |  |  |  | 200,000 |  |
Future amortization expense, year five |  |  | $ 200,000 |  |  |  |  |  |  |  | $ 200,000 |  |
Goodwill |  | 10,500,000 |  |  |  |  |  |  |  |  |  |  |
Strategic transaction costs (Note 13) |  |  |  |  |  |  |  |  |  |  |  | $ 400,000 | 800,000
Revenues |  |  |  |  |  |  |  |  |  |  |  |  | 2,700,000
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | 1,100,000
Amortization primarily related to intangible assets |  |  |  |  |  |  |  |  |  |  |  |  | $ 200,000
Senscient, Incorporated | International |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  | $ 10,500,000 |  |  |  |  |  |  |  |  |  |  |
Technology related assets |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Estimated amortization period |  |  |  |  |  |  |  |  |  |  | 8 years |  |
Technology related assets | Senscient, Incorporated |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Estimated amortization period |  | 10 years |  |  |  |  |  |  |  |  |  |  |
Customer-related intangibles | Globe Holding Company LLC |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Estimated amortization period | 20 years |  |  |  |  |  |  |  |  |  |  |  |
Customer-related intangibles | Senscient, Incorporated |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Estimated amortization period |  | 5 years |  |  |  |  |  |  |  |  |  |  |

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