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Long-term Debt - Schedule of Notes Payable (Details) - Other Notes Payable [Member] - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Debt Instrument [Line Items] |  |
Notes payable | $ 104.2 | $ 82.3
Notes Payable, Real Estate Sale / Leaseback Financing [Member] |  |
Debt Instrument [Line Items] |  |
Notes payable | 82.8 | 77.7
Notes Payable, LIBOR plus 2.5% Construction Financing [Member] | LIBOR [Member] |  |
Debt Instrument [Line Items] |  |
Notes payable | $ 14.6 | $ 4.4
Effective interest rate (percent) |  | 3.90%
Spread on variable rate (percent) | 2.50% | 2.50%
Notes Payable, 6.80% Financing [Member] |  |
Debt Instrument [Line Items] |  |
Notes payable | $ 6.8 | $ 0.2
Effective interest rate (percent) |  | 6.80%
Minimum [Member] | Notes Payable, Real Estate Sale / Leaseback Financing [Member] |  |
Debt Instrument [Line Items] |  |
Effective interest rate (percent) | 7.50% | 7.50%
Minimum [Member] | Notes Payable, LIBOR plus 2.5% Construction Financing [Member] | LIBOR [Member] |  |
Debt Instrument [Line Items] |  |
Effective interest rate (percent) | 4.80% |
Minimum [Member] | Notes Payable, 6.80% Financing [Member] |  |
Debt Instrument [Line Items] |  |
Effective interest rate (percent) | 4.30% |
Maximum [Member] | Notes Payable, Real Estate Sale / Leaseback Financing [Member] |  |
Debt Instrument [Line Items] |  |
Effective interest rate (percent) | 11.20% | 11.20%
Maximum [Member] | Notes Payable, LIBOR plus 2.5% Construction Financing [Member] | LIBOR [Member] |  |
Debt Instrument [Line Items] |  |
Effective interest rate (percent) | 5.00% |
Maximum [Member] | Notes Payable, 6.80% Financing [Member] |  |
Debt Instrument [Line Items] |  |
Effective interest rate (percent) | 6.80% |

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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + 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 (a) -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 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399 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(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + 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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