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Acquisitions - Additional Information (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Jul. 31, 2017 | Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Business Acquisition [Line Items] |  |  |  |  |
Strategic Transaction Costs |  | $ 56 | $ 386 | $ 208 | $ 3,365
Globe Holding Company LLC |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Voting interest acquired (percentage) | 100.00% |  |  |  |
All-cash transaction value | $ 215,000 |  |  |  |
Working capital adjustment | 1,400 |  |  |  |
Estimated future amortization expense, remainder of fiscal year |  | 1,000 |  | 1,000 |
Estimated future amortization expense, year 1 |  | 4,100 |  | 4,100 |
Finite-Lived Intangible Assets, Amortization Expense, Year Four |  | 3,200 |  | 3,200 |
Estimated future amortization expense, year 2 |  | 4,100 |  | 4,100 |
Estimated future amortization expense, year 3 |  | 4,100 |  | 4,100 |
Estimated future depreciation expense, remainder of fiscal year |  | 300 |  | 300 |
Estimated future depreciation expense, year 1 |  | 1,000 |  | 1,000 |
Estimated future depreciation expense, year 2 |  | 1,000 |  | 1,000 |
Estimated future depreciation expense, year 3 |  | 1,000 |  | 1,000 |
Estimated future depreciation expense, year 4 |  | $ 1,000 |  | 1,000 |
Goodwill | $ 74,500 |  |  |  |
Sales |  |  |  | 86,600 |
Net income |  |  |  | $ 9,700 |
Distributor relationships | Globe Holding Company LLC |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Acquired intangible assets, amortization period | 20 years |  |  |  |
Acquired technology and other intangible assets | Globe Holding Company LLC |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Acquired intangible assets, amortization period | 5 years |  |  |  |

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