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Stockholders' Equity - AOCI Disclosure (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Beginning Balance |  | $ 105,665 | $ 106,502 | $ 118,176
Other comprehensive loss before reclassifications |  | (3,462) | 5,415 | (9,309)
Amounts reclassified from AOCI to Other income, net |  | 48 | 77 | 100
Other comprehensive (loss) income, net of tax | [1] | (3,414) | 5,492 | (9,209)
Ending Balance |  | 99,515 | 105,665 | 106,502
Foreign Currency Translation |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Beginning Balance |  | (11,247) | (16,651) | (7,363)
Other comprehensive loss before reclassifications |  | (3,473) | 5,404 | (9,288)
Amounts reclassified from AOCI to Other income, net |  | 0 | 0 | 0
Other comprehensive (loss) income, net of tax |  | (3,473) | 5,404 | (9,288)
Ending Balance |  | (14,720) | (11,247) | (16,651)
Unrealized Gain (Loss) on Available for Sale Marketable Securities |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Beginning Balance |  | (1) | 0 | 1
Other comprehensive loss before reclassifications |  | 1 | (1) | (1)
Amounts reclassified from AOCI to Other income, net |  | 0 | 0 | 0
Other comprehensive (loss) income, net of tax |  | 1 | (1) | (1)
Ending Balance |  | 0 | (1) | 0
Interest Rate Swaps |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Beginning Balance |  | (69) | (158) | (238)
Other comprehensive loss before reclassifications |  | 10 | 12 | (20)
Amounts reclassified from AOCI to Other income, net |  | 48 | 77 | 100
Other comprehensive (loss) income, net of tax |  | 58 | 89 | 80
Ending Balance |  | (11) | (69) | (158)
Accumulated Other Comprehensive (Loss) Income |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Beginning Balance |  | (11,317) | (16,809) | (7,600)
Other comprehensive (loss) income, net of tax |  | (3,414) | 5,492 | (9,209)
Ending Balance |  | $ (14,731) | $ (11,317) | $ (16,809)
[1] | Tax impact was nominal for all periods.

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- Definition Amount after tax, before reclassification adjustments, of other comprehensive income (loss), attributable to parent. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=109228884&loc=d3e1436-108581 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580 + Details
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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 4.E) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(31)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(30)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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