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Schedule II Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at Beginning of Period | $ 2,796 | $ 5,930 | $ 5,050
Charged (Credited) to Cost and Expenses | 2,499 | (117) | 946
Debited (Credited) to Other Accounts | 0 | 24 | 3
Amount Written Off | (1,986) | (3,010) | (402)
Translation Adjustments | 143 | (31) | 333
Balance at End of Period | 3,452 | 2,796 | 5,930
Accounts Receivable |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at Beginning of Period | 2,582 | 5,738 | 4,796
Charged (Credited) to Cost and Expenses | 2,488 | (127) | 1,008
Debited (Credited) to Other Accounts | 0 | 12 | 3
Amount Written Off | (1,986) | (3,010) | (402)
Translation Adjustments | 143 | (31) | 333
Balance at End of Period | 3,227 | 2,582 | 5,738
Investment in sales-type leases |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at Beginning of Period | 214 | 192 | 254
Charged (Credited) to Cost and Expenses | 11 | 10 | (62)
Debited (Credited) to Other Accounts | 0 | 12 | 0
Amount Written Off | 0 | 0 | 0
Translation Adjustments | 0 | 0 | 0
Balance at End of Period | $ 225 | $ 214 | $ 192

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- Definition Amount of increase (decrease) in valuation and qualifying accounts and reserves from adjustment. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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