XML 33 R23.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Accumulated Other Comprehensive Income (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Schedule of Accumulated Other Comprehensive Income | The following tables summarize the changes, net of tax, within each classification of accumulated other comprehensive income/(loss) for the three and nine months ended September 30, 2018 and 2017.
|  | Unrealized |  |  |  |
|  | gains and |  | 2018
|  | (Losses) on available- for-sale |  | Retirement |  |
(Dollar amounts in thousands) |  | Securities |  | plans |  | Total
Beginning balance, July 1, |  | $ | (9,625 | ) |  | $ | (19,264 | ) |  | $ | (28,889 | )
Change in other comprehensive income (loss) before reclassification |  | (3,700 | ) |  | — |  |  | (3,700 | )
Amounts reclassified from accumulated other comprehensive income |  | (2 | ) |  | 281 |  |  | 279 |
Net current period other comprehensive income (loss) |  | (3,702 | ) |  | 281 |  |  | (3,421 | )
Ending balance, September 30, |  | $ | (13,327 | ) |  | $ | (18,983 | ) |  | $ | (32,310 | )
|  | Unrealized |  |  |  |
|  | gains and |  | 2018
|  | (Losses) on available- for-sale |  | Retirement |  |
(Dollar amounts in thousands) |  | Securities |  | plans |  | Total
Beginning balance, January 1, |  | $ | 2,258 |  |  | $ | (16,962 | ) |  | $ | (14,704 | )
Change in other comprehensive income (loss) before reclassification |  | (16,079 | ) |  | — |  |  | (16,079 | )
Amounts reclassified from accumulated other comprehensive income |  | (4 | ) |  | 843 |  |  | 839 |
Net current period other comprehensive loss |  | (16,083 | ) |  | 843 |  |  | (15,240 | )
ASU 2018-02 adjustment |  | 498 |  |  | (2,864 | ) |  | (2,366 | )
Ending balance, September 30, |  | $ | (13,327 | ) |  | $ | (18,983 | ) |  | $ | (32,310 | )
|  | Unrealized |  |  |  |
|  | gains and |  | 2017
|  | (Losses) on available- for-sale |  | Retirement |  |
(Dollar amounts in thousands) |  | Securities |  | plans |  | Total
Beginning balance, July 1, |  | $ | 7,156 |  |  | $ | (12,720 | ) |  | $ | (5,564 | )
Change in other comprehensive income (loss) before reclassification |  | (33 | ) |  | — |  |  | (33 | )
Amounts reclassified from accumulated other comprehensive income |  | (18 | ) |  | 184 |  |  | 166 |
Net current period other comprehensive income |  | (51 | ) |  | 184 |  |  | 133 |
Ending balance, September 30, |  | $ | 7,105 |  |  | $ | (12,536 | ) |  | $ | (5,431 | )
|  | Unrealized |  |  |  |
|  | gains and |  | 2017
|  | (Losses) on available- for-sale |  | Retirement |  |
(Dollar amounts in thousands) |  | Securities |  | plans |  | Total
Beginning balance, January 1, |  | $ | (1,077 | ) |  | $ | (13,087 | ) |  | $ | (14,164 | )
Change in other comprehensive income (loss) before reclassification |  | 8,211 |  |  | — |  |  | 8,211 |
Amounts reclassified from accumulated other comprehensive income |  | (29 | ) |  | 551 |  |  | 522 |
Net current period other comprehensive income |  | 8,182 |  |  | 551 |  |  | 8,733 |
Ending balance, September 30, |  | $ | 7,105 |  |  | $ | (12,536 | ) |  | $ | (5,431 | )
Schedule Of Accumulated Other Comprehensive Income Loss Other Than Temporary Impairment |
|  | Balance at |  | Current Period |  | Balance at
(Dollar amounts in thousands) |  | 1/1/2018 |  | Change |  | 9/30/2018
Unrealized gains (losses) on securities available-for-sale |  |  |  |  |  |
without other than temporary impairment |  | $ | (1,371 | ) |  | $ | (13,931 | ) |  | $ | (15,302 | )
Unrealized gains (losses) on securities available-for-sale |  |  |  |  |  |  |  |  |
with other than temporary impairment |  | 3,629 |  |  | (1,654 | ) |  | 1,975 |
Total unrealized loss on securities available-for-sale |  | $ | 2,258 |  |  | $ | (15,585 | ) |  | $ | (13,327 | )
Unrealized loss on retirement plans |  | (16,962 | ) |  | (2,021 | ) |  | (18,983 | )
TOTAL |  | $ | (14,704 | ) |  | $ | (17,606 | ) |  | $ | (32,310 | )
|  | Balance at |  | Current Period |  | Balance at
(Dollar amounts in thousands) |  | 7/1/2017 |  | Change |  | 9/30/2017
Unrealized gains (losses) on securities available-for-sale |  |  |  |  |  |  |  |  |
without other than temporary impairment |  | $ | 5,129 |  |  | $ | (993 | ) |  | $ | 4,136 |
Unrealized gains (losses) on securities available-for-sale |  |  |  |  |  |  |  |  |
with other than temporary impairment |  | 2,027 |  |  | 942 |  |  | 2,969 |
Total unrealized loss on securities available-for-sale |  | $ | 7,156 |  |  | $ | (51 | ) |  | $ | 7,105 |
Unrealized loss on retirement plans |  | (12,720 | ) |  | 184 |  |  | (12,536 | )
TOTAL |  | $ | (5,564 | ) |  | $ | 133 |  |  | $ | (5,431 | )
|  | Balance at |  | Current Period |  | Balance at
(Dollar amounts in thousands) |  | 1/1/2017 |  | Change |  | 9/30/2017
Unrealized gains (losses) on securities available-for-sale |  |  |  |  |  |  |  |  |
without other than temporary impairment |  | $ | (3,018 | ) |  | $ | 7,154 |  |  | $ | 4,136 |
Unrealized gains (losses) on securities available-for-sale |  |  |  |  |  |  |  |  |
with other than temporary impairment |  | 1,941 |  |  | 1,028 |  |  | 2,969 |
Total unrealized loss on securities available-for-sale |  | $ | (1,077 | ) |  | $ | 8,182 |  |  | $ | 7,105 |
Unrealized loss on retirement plans |  | (13,087 | ) |  | 551 |  |  | (12,536 | )
TOTAL |  | $ | (14,164 | ) |  | $ | 8,733 |  |  | $ | (5,431 | )
Accumulated Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent |
|  | Three Months Ended September 30, 2018 |  |
Details about accumulated |  | Amount reclassified from |  | Affected line item in
other comprehensive |  | accumulated other |  | the statement where
income components |  | comprehensive income |  | net income is presented
|  | (in thousands) |  |
Unrealized gains and losses |  | $ | 3 |  |  | Net securities gains (losses)
on available-for-sale |  | (1 | ) |  | Income tax expense
securities |  | $ | 2 |  |  | Net of tax
Amortization of |  | $ | (362 | ) |  | (a) Salary and benefits
retirement plan items |  | 81 |  |  | Income tax expense
|  | $ | (281 | ) |  | Net of tax
Total reclassifications for the period |  | $ | (279 | ) |  | Net of tax
(a) Included in the computation of net periodic benefit cost. (see Footnote 6 for additional details).
|  | Nine Months Ended September 30, 2018 |  |
Details about accumulated |  | Amount reclassified from |  | Affected line item in
other comprehensive |  | accumulated other |  | the statement where
income components |  | comprehensive income |  | net income is presented
|  | (in thousands) |  |
Unrealized gains and losses |  | $ | 5 |  |  | Net securities gains (losses)
on available-for-sale |  | (1 | ) |  | Income tax expense
securities |  | $ | 4 |  |  | Net of tax
Amortization of |  | $ | (1,085 | ) |  | (a) Salary and benefits
retirement plan items |  | 242 |  |  | Income tax expense
|  | $ | (843 | ) |  | Net of tax
Total reclassifications for the period |  | $ | (839 | ) |  | Net of tax
(a) Included in the computation of net periodic benefit cost. (see Footnote 6 for additional details).
|  | Three Months Ended September 30, 2017 |  |
Details about accumulated |  | Amount reclassified from |  | Affected line item in
other comprehensive |  | accumulated other |  | the statement where
income components |  | comprehensive income |  | net income is presented
|  | (in thousands) |  |
Unrealized gains and losses |  | $ | 27 |  |  | Net securities gains (losses)
on available-for-sale |  | (9 | ) |  | Income tax expense
securities |  | $ | 18 |  |  | Net of tax
Amortization of |  | $ | (301 | ) |  | (a) Salary and benefits
retirement plan items |  | 117 |  |  | Income tax expense
|  | $ | (184 | ) |  | Net of tax
Total reclassifications for the period |  | $ | (166 | ) |  | Net of tax
(a) Included in the computation of net periodic benefit cost. (see Footnote 6 for additional details).

X
- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss) portion attributable to parent. + References No definition available. + Details
Name: | thff_AccumulatedOtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentTableTextBlock
Namespace Prefix: | thff_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss) with and without other than temporary impairment. + References No definition available. + Details
Name: | thff_ScheduleOfAccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImapairmentTableTextBlock
Namespace Prefix: | thff_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTaxAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration