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Revenue from Contracts with Customers (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2019 | Mar. 31, 2018
Revenue from Contracts with Customers |  |
Leasing revenue | $ 75,358 | $ 56,014
Maintenance reserve revenue | 25,350 | 15,440
Gain on sale of leased equipment | 9,570 | 545
Total revenue | 103,769 | 70,497
Spare parts and equipment sales |  |
Revenue from Contracts with Customers |  |
Maintenance reserve revenue | 17,502 | 12,986
Managed services |  |
Revenue from Contracts with Customers |  |
Maintenance reserve revenue | 1,339 | 921
Other revenue |  |
Revenue from Contracts with Customers |  |
Leasing revenue | 1,600 | 900
Maintenance reserve revenue | 0 | 31
Operating Segments | Leasing and Related Operations |  |
Revenue from Contracts with Customers |  |
Leasing revenue | 75,358 | 56,014
Maintenance reserve revenue | 25,350 | 15,440
Gain on sale of leased equipment | 9,570 | 545
Total revenue | 88,752 | 57,480
Operating Segments | Leasing and Related Operations | Spare parts and equipment sales |  |
Revenue from Contracts with Customers |  |
Maintenance reserve revenue | 2,485 | 0
Operating Segments | Leasing and Related Operations | Managed services |  |
Revenue from Contracts with Customers |  |
Maintenance reserve revenue | 1,339 | 921
Operating Segments | Leasing and Related Operations | Other revenue |  |
Revenue from Contracts with Customers |  |
Maintenance reserve revenue | 0 | 0
Operating Segments | Spare Parts Sales |  |
Revenue from Contracts with Customers |  |
Leasing revenue | 0 | 0
Maintenance reserve revenue | 0 | 0
Gain on sale of leased equipment | 0 | 0
Total revenue | 15,111 | 14,099
Operating Segments | Spare Parts Sales | Spare parts and equipment sales |  |
Revenue from Contracts with Customers |  |
Maintenance reserve revenue | 15,017 | 12,986
Operating Segments | Spare Parts Sales | Managed services |  |
Revenue from Contracts with Customers |  |
Maintenance reserve revenue | 0 | 0
Operating Segments | Spare Parts Sales | Other revenue |  |
Revenue from Contracts with Customers |  |
Maintenance reserve revenue | 94 | 1,113
Eliminations |  |
Revenue from Contracts with Customers |  |
Leasing revenue | 0 | 0
Maintenance reserve revenue | 0 | 0
Gain on sale of leased equipment | 0 | 0
Total revenue | (94) | (1,082)
Eliminations | Spare parts and equipment sales |  |
Revenue from Contracts with Customers |  |
Maintenance reserve revenue | 0 | 0
Eliminations | Managed services |  |
Revenue from Contracts with Customers |  |
Maintenance reserve revenue | 0 | 0
Eliminations | Other revenue |  |
Revenue from Contracts with Customers |  |
Maintenance reserve revenue | $ (94) | $ (1,082)

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- Definition The net gain (loss) arising from the lessor's sale of assets held- or available-for-lease under contractual arrangements classified as operating leases. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 40 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=77911379&loc=d3e44908-112734 + Details
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- Definition Amount of operating lease income from lease payments and variable lease payments paid and payable to lessor. Includes, but is not limited to, variable lease payments not included in measurement of lease receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77888428&loc=SL77919372-209981 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=77888421&loc=SL77919311-209978 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 6A -URI http://asc.fasb.org/extlink&oid=109225645&loc=SL77927221-108306 + Details
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- Definition Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045 + Details
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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 + Details
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