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Other Deferred Items and Liabilities - Summary of Other Deferred Items and Liabilities (Parenthetical) (Details) - USD ($) | Dec. 31, 2018 | Dec. 31, 2017
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Other Liabilities Disclosure [Abstract] |  |  |
Contract liabilities | $ 2,124,000 | [1] | $ 0
[1] | In connection with the adoption of Topic 606, we elected to more prominently present contract liabilities on the Consolidated Balance Sheets. Consequently, customer deposits were reclassified in 2017 to “Contract liabilities” and to other certain current liabilities to conform to the current period presentation.” There were no long-term contract liabilities as of December 31, 2017. Refer to Note 2 – Revenue and Related Contract Costs and Contract Liabilities for additional information.

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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130549-203045 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=82913815&loc=SL49130532-203044 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=82913815&loc=SL49130531-203044 + Details
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Balance Type: | credit
Period Type: | instant

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