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v3.19.1

Accumulated Other Comprehensive Income ("AOCI") (Tables) | 3 Months Ended
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Mar. 31, 2019
Equity [Abstract] |
Summary of Total Changes in AOCI by Component, Net of Tax | The following tables set forth the total changes in AOCI by component, net of tax:
|  | Three Months Ended March 31, 2019 |  |  | Three Months Ended March 31, 2018 |
|  | Defined benefit pension plan activity |  |  | Currency Translation Adjustment |  |  | Total |  |  | Defined benefit pension plan activity |  |  | Currency Translation Adjustment |  |  | Total |
Balance at January 1 |  | $ | (5,873 | ) |  | $ | (53,710 | ) |  | $ | (59,583 | ) |  | $ | (6,015 | ) |  | $ | (41,425 | ) |  | $ | (47,440 | )
Other comprehensive income before reclassifications: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on foreign currency translation adjustment |  |  | 0 |  |  |  | 1,353 |  |  |  | 1,353 |  |  |  | 0 |  |  |  | 3,832 |  |  |  | 3,832 |
Amounts reclassified from AOCI: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortization of defined benefit pension actuarial gain (a) |  |  | 93 |  |  |  | 0 |  |  |  | 93 |  |  |  | 91 |  |  |  | 0 |  |  |  | 91 |
Net current period other comprehensive income |  |  | 93 |  |  |  | 1,353 |  |  |  | 1,446 |  |  |  | 91 |  |  |  | 3,832 |  |  |  | 3,923 |
Balance at March 31 |  | $ | (5,780 | ) |  | $ | (52,357 | ) |  | $ | (58,137 | ) |  | $ | (5,924 | ) |  | $ | (37,593 | ) |  | $ | (43,517 | )
(a) | This AOCI component is included in the computation of net periodic pension costs.

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: 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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