XML 89 R29.htm IDEA: XBRL DOCUMENT v3.19.3

Retirement Plans (Table)

9 Months Ended

Sep. 30, 2019

Retirement Benefits [Abstract]

Schedule of Components of Net Periodic Benefit Cost

		Pension Plan							Pension Plan
		Quarter ended September 30,							Nine Months ended September 30,
($ in thousands)		2019				2018			2019			2018
Net Periodic Pension Cost (Benefit):
Interest cost		$	3,376			3,095			10,129			9,285
Expected return on plan assets		(5,278		)		(5,681	)		(15,835	)		(17,044	)
Amortization of unrecognized net actuarial loss		644				494			1,931			1,481
Total net periodic pension cost (benefit)1		$	(1,258	)		(2,092	)		(3,775	)		(6,278	)

¹ The components of net periodic pension cost (benefit) are included within "Loss and loss expense incurred" and "Other insurance expenses" on the Consolidated Statements of Income.

Schedule of Weighted-Average Expense Assumptions

		Pension Plan
		Nine Months ended September 30,
		2019			2018
Weighted-Average Expense Assumptions:
Discount rate		4.46	%		3.78	%
Effective interest rate for calculation of interest cost		4.12			3.46
Expected return on plan assets		6.50			6.36

X

- References

No definition available.

+ Details

Name:	us-gaap_CompensationAndRetirementDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the assumptions used to determine for pension plans and/or other employee benefit plans the benefit obligation and net benefit cost, including assumed discount rates, rate increase in compensation increase, and expected long-term rates of return on plan assets.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (k)
-URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920

+ Details

Name:	us-gaap_ScheduleOfAssumptionsUsedTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)
-URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920

+ Details

Name:	us-gaap_ScheduleOfNetBenefitCostsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration