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Long-Term Debt - Notes Narrative (Details) |  |  |  | 6 Months Ended
--- | --- | --- | --- | ---
Mar. 10, 2017 USD ($) | Sep. 30, 2016 USD ($) | May 09, 2013 USD ($) | Jun. 30, 2018 USD ($) Location $ / shares
Mortgage notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Mortgage financing aggregate |  |  |  | $ 21,100,000
Number of operating locations related to mortgage financing | Location |  |  |  | 3
Debt weighted average interest rate on note |  |  |  | 4.53%
Outstanding principal balance |  |  |  | $ 422,600,000
5.0% Notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Stated interest rate on debt agreement |  |  | 5.00% | 5.00%
Principal amount |  |  | $ 300,000,000 |
Notes issued, percent of principal |  |  | 100.00% |
Outstanding notes repurchased amount |  | $ 10,700,000 |  |
Repurchase amount paid in cash, plus accrued and unpaid interest related thereto |  | $ 10,600,000 |  |
Maximum dividend (usd per share) | $ / shares |  |  |  | $ 0.10
6.125% Notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Stated interest rate on debt agreement | 6.125% |  |  | 6.125%
Principal amount | $ 250,000,000 |  |  |
Notes issued, percent of principal | 100.00% |  |  |
Maximum dividend (usd per share) | $ / shares |  |  |  | $ 0.12
7.0% Senior Subordinate Notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Stated interest rate on debt agreement |  |  |  | 7.00%

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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 The cash outflow from the repayment of long-term borrowing where a lender is placed in a lien position behind debt having a higher priority of repayment (senior) in case of liquidation of the entity's assets before its maturity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585 + Details
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- Definition Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower. + References Reference 1: 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 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 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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