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v3.19.1

Debt - Additional Information (Details) |  | 3 Months Ended |
--- | --- | --- | ---
Sep. 25, 2018 USD ($) | Mar. 31, 2019 USD ($) | Mar. 31, 2018 USD ($) | Dec. 31, 2018 USD ($)
Debt Instrument [Line Items] |  |  |  |
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months |  | $ 4,100,000 |  |
Amount borrowed |  | 620,300,000 |  | $ 622,100,000
Deferred debt issuance costs |  | 6,900,000 |  | 7,200,000
Long-term Debt, Fiscal Year Maturity [Abstract] |  |  |  |
2020 |  | 3,200,000 |  |
2021 |  | 3,800,000 |  |
2022 |  | 3,700,000 |  |
2023 |  | 78,900,000 |  |
Thereafter |  | 541,000,000 |  |
Total |  | 634,700,000 |  |
Interest expense |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Amortization of debt issuance costs |  | 300,000 | $ 500,000 |
Senior unsecured notes |  |  |  |
Long-term Debt, Fiscal Year Maturity [Abstract] |  |  |  |
Fair market value |  | $ 354,400,000 |  | 331,600,000
New Credit Facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Maximum borrowings under credit facility | $ 700,000,000.0 |  |  |
EBITDA ratio | 4.50 |  |  |
Interest coverage ratio | 3.00 |  |  |
Effective interest rate on debt facilities |  | 4.42% | 3.44% |
6.875% Senior Unsecured Notes Due 2026 | Senior unsecured notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, face amount | $ 350,000,000.0 |  |  |
Interest rate | 6.875% |  |  |
Effective rate |  | 7.248% |  |
Redemption price, percentage | 100.00% |  |  |
Amount to be redeemed, percentage | 35.00% |  |  |
Redemption price for equity offerings, percentage | 106.875% |  |  |
Long-term Debt, Fiscal Year Maturity [Abstract] |  |  |  |
Total |  | $ 342,500,000 |  | 342,400,000
Revolving credit facility - U.S. dollar borrowings | Revolving credit facility |  |  |  |
Long-term Debt, Fiscal Year Maturity [Abstract] |  |  |  |
Total |  | $ 76,000,000 |  | 76,000,000
Term loan facility | Term loan facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument term | 7 years |  |  |
Debt instrument, face amount | $ 200,000,000.0 |  |  |
Amortization rate |  | 1.00% |  |
Average interest rate on outstanding borrowings |  | 4.25% |  |
Long-term Debt, Fiscal Year Maturity [Abstract] |  |  |  |
Total |  | $ 199,000,000 |  | $ 199,500,000
Revolving Credit Facility | New Credit Facility and Bond Indenture |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Maximum borrowings under credit facility | $ 400,000,000.0 |  |  |
Debt instrument term | 5 years |  |  |
Revolving line of credit | $ 500,000,000 |  |  |
Revolving Credit Facility | Revolving credit facility - U.S. dollar borrowings |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Average interest rate on outstanding borrowings |  | 4.00% |  |
LIBOR | Revolving Credit Facility | New Credit Facility and Bond Indenture |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable interest rate |  | 1.75% |  |
LIBOR | Term loan facility | New Credit Facility and Bond Indenture |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable interest rate |  | 2.00% |  |
Base Rate | Revolving Credit Facility | New Credit Facility and Bond Indenture |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable interest rate |  | 0.75% |  |
Base Rate | Term loan facility | New Credit Facility and Bond Indenture |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable interest rate |  | 1.00% |  |

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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870 Reference 2: 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=6879938&loc=d3e572229-122910 Reference 3: 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 4: 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 + Details
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- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870 Reference 2: 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(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: 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 4: 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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