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Lease Arrangements - Schedule of Future Minimum Lease Payments to be Received from Sales-Type Leases (Parenthetical) (Detail) - USD ($) $ in Thousands | Feb. 27, 2019 | Dec. 31, 2018 | Dec. 31, 2017
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Lessor Lease Description [Line Items] |  |  |
Future minimum lease payments receivable |  | $ 13,009 | $ 14,238
Customer 1 [Member] |  |  |
Lessor Lease Description [Line Items] |  |  |
Future minimum lease payments receivable |  | $ 7,800 |
Customer 1 [Member] | Subsequent Events [Member] |  |  |
Lessor Lease Description [Line Items] |  |  |
Future minimum lease payments receivable | $ 9,400 |  |

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- Definition Amount of minimum lease payments to be received by the lessor for capital leases. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84165051&loc=d3e45377-112738 + 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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- Details
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- Details
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