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v3.19.2

Debt (Additional Information) (Details) - USD ($) | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018 | Dec. 31, 2018 | Dec. 31, 2017 | Mar. 31, 2017
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest expense incurred on outstanding debt | $ 2,100,000 | $ 1,100,000 | $ 4,200,000 | $ 2,000,000.0 |  |  |
Borrowings under revolving credit facility | $ 195,482,000 |  | $ 195,482,000 |  | $ 228,482,000 |  |
Debt instrument, leverage ratio, maximum | 2.75 |  | 2.75 |  |  |  |
Maximum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Dividends |  |  | $ 20,000,000.0 |  |  |  |
Credit Agreement |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Variable rate lower range basis spread | 37.50% |  | 37.50% |  |  |  |
Variable rate higher range basis spread | 75.00% |  | 75.00% |  |  |  |
Third Amended Credit Agreement |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Leverage ratio | 3.25 |  | 3.25 |  |  |  |
One-time leverage ratio maximum option | 3.50 |  | 3.50 |  |  |  |
ICR covenant limit | 3.00 |  | 3.00 |  |  |  |
Discretionary principal payments on revolving credit facility |  |  | $ 33,000,000.0 |  |  |  |
Outstanding borrowings | $ 1,400,000 |  | $ 1,400,000 |  |  |  |
Eurocurrency loans | Credit Agreement |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Line of credit, LIBOR rate, minimum spread | 137.50% |  | 137.50% |  |  |  |
Line of credit, LIBOR rate, maximum spread | 175.00% |  | 175.00% |  |  |  |
Revolving Credit Facility | Third Amended Credit Agreement |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument, term |  |  |  |  |  | 5 years |
Maximum borrowing capacity |  |  |  |  |  | $ 450,000,000.0 | $ 450,000,000.0
Additional borrowing capacity |  |  |  |  |  | $ 175,000,000.0 |
Revolving Credit Facility | Third Amended Credit Agreement | Minimum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Unused capacity, commitment fee percentage |  |  | 20.00% |  |  |  |
Revolving Credit Facility | Third Amended Credit Agreement | Maximum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Unused capacity, commitment fee percentage |  |  | 30.00% |  |  |  |
Interest rate swap | Revolving Credit Facility | Third Amended Credit Agreement |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Hedged balance on debt instrument |  |  |  |  |  |  | $ 75,000,000.0
Griswold |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Proceeds from line of credit |  |  |  |  | 82,500,000 |  |
Rogers Plan |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Additional borrowing under line of credit |  |  |  |  | $ 20,000,000.0 |  |
Federal Funds Rate | Credit Agreement |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Basis spread on variable rate |  |  | 0.50% |  |  |  |
London Interbank Offered Rate (LIBOR) | Third Amended Credit Agreement |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Basis spread on variable rate |  |  | 1.50% |  |  |  |

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- Definition Covenant Requirement, Interest Coverage Ratio + References No definition available. + Details
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- Definition LIBORS Spread Maximum + References No definition available. + Details
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- Definition Line of Credit Facility, Additional Borrowing Capacity + References No definition available. + Details
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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Amount of the cost of borrowed funds accounted for as interest expense for debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6036836-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.8) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. + References No definition available. + Details
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- Definition Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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