ACCUMULATED OTHER COMPREHENSIVE LOSS - Accumulated Other Comprehensive Income, Changes In (Details) - USD ($)
|
12 Months Ended |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
AOCI Attributable to Parent, Net of Tax |
|
|
|
|
Beginning balance, net of tax |
|
$ 804,580,000
|
$ 731,291,000
|
$ 754,140,000
|
Income tax (expense) benefit |
|
(17,237,000)
|
(14,478,000)
|
3,725,000
|
Ending balance, net of tax |
|
875,297,000
|
804,580,000
|
731,291,000
|
Retained Earnings |
|
|
|
|
AOCI Attributable to Parent, Net of Tax |
|
|
|
|
Beginning balance, net of tax |
|
80,274,000
|
64,797,000
|
32,851,000
|
Ending balance, net of tax |
|
111,208,000
|
80,274,000
|
64,797,000
|
Unrealized Gains (Losses) on Securities |
|
|
|
|
AOCI Attributable to Parent, Net of Tax |
|
|
|
|
Beginning balance, net of tax |
|
38,038,000
|
(31,120,000)
|
(16,295,000)
|
Other comprehensive income (loss) before reclassifications |
|
105,845,000
|
87,481,000
|
(21,956,000)
|
Reclassification adjustments included in net income |
|
(7,060,000)
|
60,000
|
3,083,000
|
Income tax (expense) benefit |
|
(20,745,000)
|
(18,383,000)
|
3,963,000
|
Net current-period other comprehensive income (loss), net of tax |
|
78,040,000
|
69,158,000
|
(14,910,000)
|
Ending balance, net of tax |
|
116,078,000
|
38,038,000
|
(31,120,000)
|
Unrealized Gains (Losses) on Derivatives |
|
|
|
|
AOCI Attributable to Parent, Net of Tax |
|
|
|
|
Beginning balance, net of tax |
|
(1,672,000)
|
7,146,000
|
6,399,000
|
Other comprehensive income (loss) before reclassifications |
|
(23,462,000)
|
(9,118,000)
|
2,351,000
|
Reclassification adjustments included in net income |
|
3,945,000
|
(2,043,000)
|
(1,406,000)
|
Income tax (expense) benefit |
|
4,098,000
|
2,343,000
|
(198,000)
|
Net current-period other comprehensive income (loss), net of tax |
|
(15,419,000)
|
(8,818,000)
|
747,000
|
Ending balance, net of tax |
|
(17,091,000)
|
(1,672,000)
|
7,146,000
|
Net Prior Service (Cost) Credit |
|
|
|
|
AOCI Attributable to Parent, Net of Tax |
|
|
|
|
Reclassification adjustments included in net income |
[1] |
(7,000)
|
(8,000)
|
(7,000)
|
Net Gain (Loss) |
|
|
|
|
AOCI Attributable to Parent, Net of Tax |
|
|
|
|
Reclassification adjustments included in net income |
[1] |
3,035,000
|
2,386,000
|
2,189,000
|
Total |
|
|
|
|
AOCI Attributable to Parent, Net of Tax |
|
|
|
|
Beginning balance, net of tax |
|
4,236,000
|
(50,228,000)
|
(36,298,000)
|
Other comprehensive income (loss) before reclassifications |
|
82,168,000
|
68,547,000
|
(21,599,000)
|
Reclassification adjustments included in net income |
|
(87,000)
|
395,000
|
3,859,000
|
Income tax (expense) benefit |
|
(17,237,000)
|
(14,478,000)
|
3,725,000
|
Net current-period other comprehensive income (loss), net of tax |
|
64,844,000
|
54,464,000
|
(14,015,000)
|
Ending balance, net of tax |
|
69,080,000
|
4,236,000
|
(50,228,000)
|
Pension Plans | Net Prior Service (Cost) Credit |
|
|
|
|
AOCI Attributable to Parent, Net of Tax |
|
|
|
|
Beginning balance, net of tax |
|
(145,000)
|
(139,000)
|
(133,000)
|
Other comprehensive income (loss) before reclassifications |
|
378,000
|
0
|
0
|
Reclassification adjustments included in net income |
|
(7,000)
|
(8,000)
|
(7,000)
|
Income tax (expense) benefit |
|
(77,000)
|
2,000
|
1,000
|
Net current-period other comprehensive income (loss), net of tax |
|
294,000
|
(6,000)
|
(6,000)
|
Ending balance, net of tax |
|
149,000
|
(145,000)
|
(139,000)
|
Pension Plans | Net Gain (Loss) |
|
|
|
|
AOCI Attributable to Parent, Net of Tax |
|
|
|
|
Beginning balance, net of tax |
|
(31,985,000)
|
(26,115,000)
|
(26,269,000)
|
Other comprehensive income (loss) before reclassifications |
|
(593,000)
|
(9,816,000)
|
(1,994,000)
|
Reclassification adjustments included in net income |
|
3,035,000
|
2,386,000
|
2,189,000
|
Income tax (expense) benefit |
|
(513,000)
|
1,560,000
|
(41,000)
|
Net current-period other comprehensive income (loss), net of tax |
|
1,929,000
|
(5,870,000)
|
154,000
|
Ending balance, net of tax |
|
(30,056,000)
|
(31,985,000)
|
(26,115,000)
|
Cumulative effect of accounting change |
|
|
|
|
AOCI Attributable to Parent, Net of Tax |
|
|
|
|
Beginning balance, net of tax |
|
(7,830,000)
|
(16,452,000)
|
0
|
Ending balance, net of tax |
|
|
(7,830,000)
|
(16,452,000)
|
Cumulative effect of accounting change | Retained Earnings |
|
|
|
|
AOCI Attributable to Parent, Net of Tax |
|
|
|
|
Beginning balance, net of tax |
|
(7,830,000)
|
(16,452,000)
|
(85,000)
|
Ending balance, net of tax |
|
|
(7,830,000)
|
(16,452,000)
|
Cumulative effect of accounting change | Total |
|
|
|
|
AOCI Attributable to Parent, Net of Tax |
|
|
|
|
Beginning balance, net of tax |
|
|
|
85,000
|
Cumulative effect of accounting change | Accounting Standards Update 2016-01 |
|
|
|
|
AOCI Attributable to Parent, Net of Tax |
|
|
|
|
Beginning balance, net of tax |
[2] |
|
|
85,000
|
Cumulative effect of accounting change | Accounting Standards Update 2016-01 | Retained Earnings |
|
|
|
|
AOCI Attributable to Parent, Net of Tax |
|
|
|
|
Beginning balance, net of tax |
|
|
|
(107,000)
|
Cumulative effect of accounting change | Accounting Standards Update 2016-01 | Retained Earnings | Net Of Tax, Adjustment |
|
|
|
|
AOCI Attributable to Parent, Net of Tax |
|
|
|
|
Beginning balance, net of tax |
|
|
|
(85,000)
|
Cumulative effect of accounting change | Accounting Standards Update 2016-01 | Unrealized Gains (Losses) on Securities |
|
|
|
|
AOCI Attributable to Parent, Net of Tax |
|
|
|
|
Beginning balance, net of tax |
[2] |
|
|
85,000
|
Cumulative effect of accounting change | Accounting Standards Update 2016-01 | Unrealized Gains (Losses) on Derivatives |
|
|
|
|
AOCI Attributable to Parent, Net of Tax |
|
|
|
|
Beginning balance, net of tax |
[2] |
|
|
0
|
Cumulative effect of accounting change | Pension Plans | Accounting Standards Update 2016-01 | Net Prior Service (Cost) Credit |
|
|
|
|
AOCI Attributable to Parent, Net of Tax |
|
|
|
|
Beginning balance, net of tax |
[2] |
|
|
0
|
Cumulative effect of accounting change | Pension Plans | Accounting Standards Update 2016-01 | Net Gain (Loss) |
|
|
|
|
AOCI Attributable to Parent, Net of Tax |
|
|
|
|
Beginning balance, net of tax |
[2] |
|
|
0
|
Adjusted beginning balance |
|
|
|
|
AOCI Attributable to Parent, Net of Tax |
|
|
|
|
Beginning balance, net of tax |
|
796,750,000
|
714,839,000
|
754,140,000
|
Ending balance, net of tax |
|
|
796,750,000
|
714,839,000
|
Adjusted beginning balance | Retained Earnings |
|
|
|
|
AOCI Attributable to Parent, Net of Tax |
|
|
|
|
Beginning balance, net of tax |
|
72,444,000
|
48,345,000
|
32,766,000
|
Ending balance, net of tax |
|
|
72,444,000
|
48,345,000
|
Adjusted beginning balance | Unrealized Gains (Losses) on Securities |
|
|
|
|
AOCI Attributable to Parent, Net of Tax |
|
|
|
|
Beginning balance, net of tax |
|
|
|
(16,210,000)
|
Adjusted beginning balance | Unrealized Gains (Losses) on Derivatives |
|
|
|
|
AOCI Attributable to Parent, Net of Tax |
|
|
|
|
Beginning balance, net of tax |
|
|
|
6,399,000
|
Adjusted beginning balance | Total |
|
|
|
|
AOCI Attributable to Parent, Net of Tax |
|
|
|
|
Beginning balance, net of tax |
|
$ 4,236,000
|
(50,228,000)
|
(36,213,000)
|
Ending balance, net of tax |
|
|
$ 4,236,000
|
(50,228,000)
|
Adjusted beginning balance | Pension Plans | Net Prior Service (Cost) Credit |
|
|
|
|
AOCI Attributable to Parent, Net of Tax |
|
|
|
|
Beginning balance, net of tax |
|
|
|
(133,000)
|
Adjusted beginning balance | Pension Plans | Net Gain (Loss) |
|
|
|
|
AOCI Attributable to Parent, Net of Tax |
|
|
|
|
Beginning balance, net of tax |
|
|
|
$ (26,269,000)
|
|
|