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Organization and Summary of Significant Accounting Policies (Correction of Immaterial Errors) (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |
Decrease in deferred income taxes | $ (9,100,000) | $ (6,027,000) | $ (4,110,000)
Decrease in depreciation and amortization expense | 200,000 | 100,000 |
Maintenance Rights | 17,670,000 | 12,140,000 |
Restatement adjustment |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |
Decrease in equipment held for operating lease |  | 13,700,000 |
Increase maintenance rights |  | 12,100,000 |
Decrease in deferred income taxes |  | 600,000 |
Decrease in retained earnings |  | 1,100,000 |
Decrease in maintenance reserve revenue |  | 1,700,000 | 41,000
Increase (decrease) in gain on sale of leased equipment | (34,000) | 100,000 |
Increase in income tax benefit | 500,000 | 35,000 |
Decrease in net income | $ 900,000 | $ 100,000 |
Decrease in basic and diluted earnings per share | $ 0.11 | $ 0.01 |
Decrease in cash provided by operating income | $ 1,700,000 |  |
Decrease in the cash used by investing activities |  | $ 1,700,000 |
Parent Company |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |
Decrease in deferred income taxes | (4,710,000) | (1,806,000) | $ (1,478,000)
Maintenance Rights | $ 16,468,000 | $ 22,680,000 |

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