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v3.19.3.a.u2

Equity - Changes in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] |  |  |
Beginning balance | $ 469,577 |  |
Income tax expense | (185) | $ 630 | $ (1,052)
Other comprehensive income (loss), net of tax | 2,572 | (1,332) | (4,424)
Ending balance | 644,729 | 469,577 |
AOCI Attributable to Parent [Member] |  |  |
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] |  |  |
Beginning balance | (28,024) | (26,692) | (22,268)
Gains (losses) arising during period | 4,232 | (2,231) | (3,432)
Amounts reclassified from accumulated other comprehensive loss | (1,475) | 269 | 60
Income tax expense | (185) | 630 | (1,052)
Other comprehensive income (loss), net of tax | 2,572 | (1,332) | (4,424)
Ending balance | (28,159) | (28,024) | (26,692)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] |  |  |
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] |  |  |
Beginning balance | (21,814) | (20,149) | (22,268)
Gains (losses) arising during period | 693 | (2,231) | 3,111
Amounts reclassified from accumulated other comprehensive loss | 97 | (64) | 60
Income tax expense | (185) | 630 | (1,052)
Other comprehensive income (loss), net of tax | 605 | (1,665) | 2,119
Ending balance | (23,916) | (21,814) | (20,149)
Accumulated Other-than-Temporary Impairment Attributable to Parent [Member] |  |  |
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] |  |  |
Beginning balance | (6,210) | (6,543) |
Gains (losses) arising during period |  |  | (6,543)
Amounts reclassified from accumulated other comprehensive loss | 333 | 333 |
Other comprehensive income (loss), net of tax | 333 | 333 | (6,543)
Ending balance | (5,877) | $ (6,210) | $ (6,543)
Interest Rate Derivatives |  |  |
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] |  |  |
Gains (losses) arising during period | 3,539 |  |
Amounts reclassified from accumulated other comprehensive loss | (1,905) |  |
Other comprehensive income (loss), net of tax | 1,634 |  |
Ending balance | 1,634 |  |
ASU 2018-02 [Member] | AOCI Attributable to Parent [Member] |  |  |
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] |  |  |
Tax benefit or Translation adjustment related to adoption of ASU | (2,707) |  |
ASU 2018-02 [Member] | Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] |  |  |
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] |  |  |
Tax benefit or Translation adjustment related to adoption of ASU | $ (2,707) |  |

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