v3.8.0.1

Long-term Debt (Details) |  | 9 Months Ended |
--- | --- | --- | ---
Sep. 13, 2016 USD ($) | Sep. 30, 2017 USD ($) | Dec. 31, 2016 USD ($)
Long-term debt |  |  |
Net unamortized debt issuance costs |  | $ (9,278,000) | $ (10,086,000)
Long-term debt, net |  | $ 1,067,722,000 | 849,914,000
Margin rates |  | 25.00 |
Revolving credit facility |  |  |
Long-term debt |  |  |
Long-term debt |  | $ 427,000,000 | $ 210,000,000
Maximum borrowing capacity |  | $ 1,500,000 |
Weighted average interest rate (as a percent) |  | 2.82% | 2.23%
Letter of credit |  |  |
Long-term debt |  |  |
Maximum borrowing capacity |  | $ 150,000,000 |
Outstanding letters of credit |  | $ 0 | $ 0
Letter of credit | Minimum |  |  |
Long-term debt |  |  |
Commitment fees on the unused portion (as a percent) |  | 0.25% |
Commitment fees on the unused portion during investment grade period (as a percent) |  | 0.175% |
Letter of credit | Maximum |  |  |
Long-term debt |  |  |
Commitment fees on the unused portion (as a percent) |  | 0.375% |
Commitment fees on the unused portion during investment grade period (as a percent) |  | 0.375% |
5.375% Senior Notes due 2024 |  |  |
Long-term debt |  |  |
Long-term debt |  | $ 650,000,000 | $ 650,000,000
Face amount | $ 650,000,000 |  |
Interest rate (as a percent) | 5.375% |  |
Debt instrument redemption percentage upon change of control | 101.00% |  |
5.375% Senior Notes due 2024 | Maximum |  |  |
Long-term debt |  |  |
Percent of aggregate principal amount that can be redeemed | 35.00% |  |
5.375% Senior Notes due 2024 | Prior to September 15, 2019 |  |  |
Long-term debt |  |  |
Debt instrument redemption percentage | 105.375% |  |
Debt instrument redemption percentage with payment of premium and interest | 100.00% |  |
5.375% Senior Notes due 2024 | On or after September 15, 2019 |  |  |
Long-term debt |  |  |
Debt instrument redemption percentage | 104.031% |  |
5.375% Senior Notes due 2024 | On or after September 15, 2022 |  |  |
Long-term debt |  |  |
Debt instrument redemption percentage | 100.00% |  |

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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/presentationRef -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://www.xbrl.org/2003/role/presentationRef -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://www.xbrl.org/2003/role/presentationRef -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/presentationRef -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 2: http://www.xbrl.org/2003/role/presentationRef -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://www.xbrl.org/2003/role/presentationRef -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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