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Allowance for Doubtful Accounts - Impaired Notes Receivable (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Notes receivable | $ 43,043 | $ 15,476 |
Impaired Notes Receivable: |  |  |
Balance beginning of year | 6,854 | 5,685 | $ 6,471
Additions | 23,382 | 1,169 | 0
Deductions | 4,532 | 0 | 786
Balance end of year | 25,704 | 6,854 | 5,685
Average Outstanding balance | 15,448 | 6,270 | 6,078
Reserve for Impaired Notes Receivable: |  |  |
Balance beginning of year | 2,884 | 2,419 | 2,139
Additions | 12,526 | 465 | 280
Deductions | 1,938 | 0 | 0
Balance end of year | 13,472 | $ 2,884 | $ 2,419
Note Receivable |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Notes receivable | $ 10,000 |  |

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- Definition Decrease In Impaired Notes Receivable + References No definition available. + Details
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- Definition Decrease In Reserved For Impaired Notes Receivable + References No definition available. + Details
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- Definition Impaired Notes Receivable [Roll Forward] + References No definition available. + Details
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- Definition Increase In Impaired Notes Receivable + References No definition available. + Details
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- Definition Increase In Reserved For Impaired Notes Receivable + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition A valuation allowance for financing receivables that are expected to be uncollectible. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5258-111524 + Details
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- Definition Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953550-111524 + Details
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- Definition An amount representing an agreement for an unconditional promise by the maker to pay the Entity (holder) a definite sum of money at a future date more than one year from the balance sheet date, net of any write-downs taken for collection uncertainty on the part of the holder. Such amount may include accrued interest receivable in accordance with the terms of the debt. The debt also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. This amount does not include amounts related to receivables held-for-sale. + 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 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Details
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