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Acquisitions - Additional Information (Details) - USD ($) $ in Thousands |  |  |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | --- | --- | ---
Aug. 28, 2018 | Jul. 06, 2018 | Jan. 06, 2017 | Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Business Acquisition [Line Items] |  |  |  |  |  |  |
Weighted average useful life (in years) |  |  |  |  |  | 6 years 8 months |
Amortization expense |  |  |  | $ 4,400 | $ 3,800 | $ 12,100 | $ 11,000
Anticipated future amortization expense for 2018 |  |  |  | 4,400 |  | 4,400 |
Anticipated future amortization expense for 2019 |  |  |  | 13,300 |  | 13,300 |
Anticipated future amortization expense for 2020 |  |  |  | 14,700 |  | 14,700 |
Anticipated future amortization expense for 2021 |  |  |  | 13,900 |  | 13,900 |
Anticipated future amortization expense for 2022 |  |  |  | 17,800 |  | 17,800 |
Net sales |  |  |  | 226,863 | $ 206,783 | 656,149 | $ 612,035
Asset acquisition, consideration transferred | $ 43,434 |  |  |  |  |  |
Capitalized lease cost | 45,800 |  |  |  |  |  |
Lease consideration | 2,000 |  |  |  |  |  |
Asset acquisition, transaction costs | $ 400 |  |  |  |  |  |
Lease income |  |  |  | 200 |  |  |
Griswold |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Business acquisition, percentage of voting interests acquired |  | 100.00% |  |  |  |  |
Consideration transferred |  | $ 78,600 |  |  |  |  |
Proceeds from line of credit |  | 82,500 |  | 82,500 |  |  |
Earn out payment |  | $ 3,000 |  |  |  |  |
Anticipated future amortization expense for 2018 |  |  |  | 600 |  | 600 |
Anticipated future amortization expense for 2019 |  |  |  | 2,800 |  | 2,800 |
Anticipated future amortization expense for 2020 |  |  |  | 3,000 |  | 3,000 |
Anticipated future amortization expense for 2021 |  |  |  | 2,800 |  | 2,800 |
Anticipated future amortization expense for 2022 |  |  |  | 2,700 |  | 2,700 |
Net sales |  |  |  |  |  | $ 6,900 |
Diversified Silicone Products, Inc. |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Consideration transferred |  |  | $ 60,200 |  |  |  |
Revolving Credit Facility | Diversified Silicone Products, Inc. |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Proceeds from line of credit |  |  | $ 30,000 |  |  |  |
Customer relationships |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Weighted average useful life (in years) |  |  |  |  |  | 7 years 8 months |
Customer relationships | Griswold |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Intangible assets acquired |  |  |  | 22,100 |  | $ 22,100 |
Weighted average useful life (in years) |  |  |  |  |  | 9 years 6 months |
Developed Technology | Griswold |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Intangible assets acquired |  |  |  | 9,600 |  | $ 9,600 |
Weighted average useful life (in years) |  |  |  |  |  | 3 years 6 months |
Trademarks | Griswold |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Intangible assets acquired |  |  |  | 1,800 |  | $ 1,800 |
Weighted average useful life (in years) |  |  |  |  |  | 10 years 4 months 24 days |
Covenants not to compete |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Weighted average useful life (in years) |  |  |  |  |  | 2 years 3 months |
Covenants not to compete | Griswold |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Intangible assets acquired |  |  |  | 600 |  | $ 600 |
Weighted average useful life (in years) |  |  |  |  |  | 3 years 2 months |
Minimum | Griswold |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Amortization expense |  |  |  |  |  | $ 700 |
Maximum | Griswold |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Amortization expense |  |  |  |  |  | 3,000 |
Selling, General and Administrative Expenses | Griswold |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Transaction costs |  |  |  |  |  | $ 1,100 |
Other Operating Income (Expense) |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Depreciation |  |  |  | $ 900 |  |  |

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=84229725&loc=d3e1043-128460 + Details
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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=109124213&loc=d3e6613-128477 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=109124213&loc=d3e6578-128477 + Details
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- Definition The amount of identifiable intangible assets recognized as of the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=108330185&loc=d3e2207-128464 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 + Details
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