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Description of Business and Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2020
Accounting Policies [Abstract] |
Schedule of Cumulative Effect of Initially Applying New Guidance | The cumulative effect of initially applying the new ASC 326 guidance to the consolidated financial statements on January 1, 2020 was as follows:
Consolidated Statement of Financial Position |  | December 31, 2019 |  | Cumulative Impact from Adopting ASC 326 Guidance |  | January 1, 2020
|  | (in thousands)
Assets |  |  |  |  |  |
Short-term accounts and notes receivable, less allowance for doubtful accounts |  | $ | 340,930 |  |  | $ | (41,100) |  |  | $ | 299,830 |
Notes receivable – long–term portion, less allowance for doubtful accounts |  | $ | 46,992 |  |  | $ | (1,136) |  |  | $ | 45,856 |
Allowance for doubtful accounts on short-term accounts and notes receivables |  | $ | (45,726) |  |  | $ | (41,100) |  |  | $ | (86,826) |
Allowance for doubtful accounts on long-term notes receivables |  | $ | (6,667) |  |  | $ | (1,136) |  |  | $ | (7,803) |
Deferred income taxes, net |  | $ | 20,364 |  |  | $ | 10,137 |  |  | $ | 30,501 |
Stockholders’ equity |  |  |  |  |  |
Retained earnings |  | $ | 195,455 |  |  | $ | (32,099) |  |  | $ | 163,356 |

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- Definition Tabular disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=116846552&loc=d3e765-108305 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=116846552&loc=d3e725-108305 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22583-107794 + Details
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