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Consolidated Statements of Comprehensive Income (unaudited) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Consolidated Statements of Comprehensive Income (Unaudited) [Abstract] |  |  |  |
Net income | $ 30,555 | $ 28,121 | $ 59,682 | $ 54,107
Securities available for sale: |  |  |  |
Unrealized net holding gains (losses) arising during the period, gross | 13,391 | (5,353) | 24,427 | (20,807)
Tax effect | (3,348) | 1,338 | (6,107) | 5,202
Unrealized net holding gains (losses) arising during the period, net | 10,043 | (4,015) | 18,320 | (15,605)
Reclassification adjustment for net losses in net income, gross | 0 | 0 | 99 | 0
Tax effect | 0 | 0 | (25) | 0
Reclassification adjustment for net losses in net income, net | 0 | 0 | 74 | 0
Amortization of unrealized net gains for the reclassification of available for sale securities to held to maturity, gross | 199 | 177 | 366 | 365
Tax effect | (50) | (44) | (92) | (91)
Amortization of unrealized net gains for the reclassification of available for sale securities to held to maturity, net | 149 | 133 | 274 | 274
Total securities available for sale, net | 10,192 | (3,882) | 18,668 | (15,331)
Cash flow hedges: |  |  |  |
Unrealized (losses) gains on derivatives (cash flow hedges), gross | (314) | 424 | (484) | 1,472
Tax effect | 78 | (106) | 121 | (368)
Unrealized (losses) gains on derivatives (cash flow hedges), net | (236) | 318 | (363) | 1,104
Reclassification of net unrealized (gains) on cash flow hedges to interest (income), gross | (738) | (540) | (1,537) | (899)
Tax effect | 185 | 135 | 385 | 225
Reclassification of net unrealized (gains) on cash flow hedges to interest (income), net | (553) | (405) | (1,152) | (674)
Total cash flow hedges, net | (789) | (87) | (1,515) | 430
Pension and other benefits: |  |  |  |
Amortization of prior service cost and actuarial losses, gross | 657 | 295 | 1,313 | 590
Tax effect | (164) | (74) | (328) | (148)
Amortization of prior service cost and actuarial losses, net | 493 | 221 | 985 | 442
Total pension and other benefits, net | 493 | 221 | 985 | 442
Total other comprehensive income (loss) | 9,896 | (3,748) | 18,138 | (14,459)
Comprehensive income | $ 40,451 | $ 24,373 | $ 77,820 | $ 39,648

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- Definition Amount of tax expense (benefit), before reclassification adjustments, related to increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (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 12 -URI http://asc.fasb.org/extlink&oid=118930883&loc=d3e640-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580 + Details
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- Definition Amount of tax expense (benefit) before reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=118930883&loc=d3e640-108580 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580 + Details
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