Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2017

Employee Benefit Plans [Abstract]

Schedule Of Information Regarding Individually Significant Pension Plans

	Alaska Electrical Pension Plan3			NRECA Retirement Security Plan3
Employer Identification Number	92-6005171			53-0116145
Plan Number	001			333
Year-end Date	December 31			December 31
Expiration Date of CBA's	June 30, 2021			N/A2
Subject to Funding Improvement Plan	No			No4
Surcharge Paid	N/A			N/A4
	2017	2016	2015	2017	2016	2015
Zone Status	Green	Green	Green	N/A1	N/A1	N/A1
Required minimum contributions	None	None	None	N/A	N/A	N/A
Contributions (in millions)	$3.3	$3.2	$3.1	$2.6	$3.5	$3.5
Contributions > 5% of total plan contributions	Yes	Yes	Yes	No	No	No

1A “zone status” determination is not required, and therefore not determined under the Pension Protection Act (PPA) of 2006.

2The CEO is the only participant in the NRECA RS Plan who is subject to an employment agreement, which is effective through April 30, 2020.

3The Alaska Electrical Pension Plan financial statements are publicly available. The NRECA RS Plan financial statements are available on Chugach’s website at www.chugachelectric.com.

4The provisions of the PPA do not apply to the RS Plan, therefore, funding improvement plans and surcharges are not applicable. Future contribution requirements are determined each year as part of the actuarial valuation of the RS Plan and may change as a result of plan experience.