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Derivative Instruments (Tables)

3 Months Ended

Mar. 31, 2018

Summarized Information of Location and Gross Amount of Derivatives' Fair Value in Consolidated Balance Sheets

The following table summarizes information on the location and the gross amount of the derivatives’ fair value on the consolidated balance sheets as of March 31, 2018 and December 31, 2017:

(Dollars in thousands)				March 31, 2018								December 31, 2017
Derivatives Not Designated as Hedging Instruments under ASC 815		Balance Sheet       Location		Notional Amount				Fair Value				Notional Amount				Fair Value
Interest rate swap agreements		Other liabilities		$	200,000			$	(3,168	)		$	200,000			$	(7,968	)

Summary of Net Gain (Loss) Included in Consolidated Statements of Operations for Changes in Fair Value of Derivatives and Periodic Net Interest Settlements Under Derivatives

The following table summarizes the net gain included in the consolidated statements of operations for changes in the fair value of the derivatives and the periodic net interest settlements under the derivatives for the quarters ended March 31, 2018 and 2017:

		Consolidated Statements of           Operations Line		Quarters Ended March 31,
(Dollars in thousands)				2018				2017
Interest rate swap agreements		Net realized investment gain		$	4,151			$	173

X

- Definition

Tabular disclosure of the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5618551-113959

+ Details

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X

- Definition

Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624163-113959

+ Details

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Period Type:	duration