XML 46 R30.htm IDEA: XBRL DOCUMENT v3.8.0.1
Investment in Securities (Tables)
 12 Months Ended
Dec. 31, 2017
Investments, Debt and Equity Securities [Abstract]  
Schedule of Available-for-sale Securities

The amortized cost, gross unrealized gains, gross unrealized losses and fair value of debt and equity securities are summarized as follows:

December 31, 2017
Gross Gross
Amortized Unrealized Unrealized
(In thousands)       Cost       Gains       Losses       Fair Value
State and political subdivisions $ 408,165 $ 9,528 $ 661 $ 417,032
U.S. government agencies 46,222 — 722 45,500
Certificates of deposit 7,991 — — 7,991
Total $ 462,378 $ 9,528 $ 1,383 $ 470,523
 
December 31, 2016
Gross Gross
Amortized Unrealized Unrealized
(In thousands) Cost Gains Losses Fair Value
State and political subdivisions $      368,223 $ 5,239 $      3,328 $ 370,134
U.S. government agencies 13,075 — 403 12,672
Certificates of deposit 7,746 — — 7,746
Total $ 389,044 $ 5,239 $ 3,731 $      390,552
Schedule of Fair Value of Securities with Unrealized Losses

The fair values of securities with unrealized losses are as follows:

December 31, 2017
Less than 12 months 12 months or more Total
      Estimated Unrealized Estimated Unrealized       Estimated       Unrealized
(In thousands) Fair Value       Losses       Fair Value       Losses Fair value Losses
State and political subdivisions   $ 34,755 $ 123 $ 31,251 $ 538 $ 66,006 $ 661
U.S. government agencies 34,183 376 11,317 346 45,500 722
Certificates of deposit — — — — — —
Total $ 68,938 $ 499 $ 42,568 $ 884 $ 111,506 $ 1,383
 
December 31, 2016
Less than 12 months 12 months or more Total
Estimated Unrealized Estimated Unrealized Estimated Unrealized
(In thousands) Fair Value Losses Fair Value Losses Fair value Losses
State and political subdivisions $ 140,384 $ 3,328 $ — $ — $ 140,384 $ 3,328
U.S. government agencies 12,672 403 — — 12,672 403
Certificates of deposit — — — — — —
Total $ 153,056 $ 3,731 $ — $ — $ 153,056 $ 3,731
Schedule of Amortized Cost and Fair Value

The amortized cost and fair value of debt and equity securities by contractual maturity are shown in the following table. Expected maturities may differ from contractual maturities because borrowers have the right to prepay obligations with or without prepayment penalties.

      December 31, 2017
(In thousands) Amortized Cost       Fair Value
Due in 1 year or less $ 22,492 $ 22,638
Due after 1 year through 5 years 57,922 58,425
Due after 5 years through 10 years 256,396 263,961
Due after 10 years 125,568      125,499
No stated maturity — —
Total $      462,378 $ 470,523