Pension Plan (Tables)

12 Months Ended

Dec. 31, 2015

Compensation And Retirement Disclosure [Abstract]

Reconciliation of Defined Benefit Pension Plan

The following table shows the reconciliation of the defined benefit pension plan as of December 31, 2015 and 2014:

	2015			2014
	(000s)
Change in plan assets:
Fair value of plan assets at beginning of year	$	116,697		$	106,469
Actual return (loss) on plan assets		(3,223	)		16,470
Benefits paid		(6,086	)		(5,605	)
Administrative expenses		(549	)		(637	)
Fair value of plan assets at end of year	$	106,839		$	116,697
Change in benefit obligation:
Benefit obligation at beginning of year	$	127,342		$	103,558
Service cost		1,051			966
Interest cost		4,912			4,986
Benefits paid		(6,086	)		(5,605	)
Actuarial (gain) loss		(9,039	)		23,437
Benefit obligation at end of year	$	118,180		$	127,342
Amounts recognized in the Consolidated Balance Sheet:
Other non-current liabilities		11,341			10,645
Total amounts recognized at end of year	$	11,341		$	10,645

Components of Net Periodic Pension Cost (Benefit)

	2015			2014			2013
	(000s)
Components of net periodic cost (benefit)
Service cost	$	1,051		$	966		$	1,060
Interest cost		4,912			4,985			4,528
Expected return on plan assets		(6,254	)		(7,772	)		(7,601	)
Recognized actuarial loss		3,164			1,107			3,305
Net periodic cost	$	2,873		$	(714	)	$	1,292

Measurement Dates

	2015	2014
Measurement Dates
Benefit obligations	12/31/2015	12/31/2014
Fair value of plan assets	12/31/2015	12/31/2014

Weighted-average Assumptions for Net Periodic Benefit Cost

	2015			2014
Weighted average assumptions as of December 31
Discount rate		4.34	%		3.95	%
Rate of compensation increase		4.00	%		4.00	%

Weighted Average Assumptions

	2015			2014			2013
Weighted-average assumptions for net periodic benefit    cost calculations
Discount rate		3.95	%		4.95	%		4.05	%
Expected long-term rate of return on plan assets		5.50	%		7.50	%		7.50	%
Rate of compensation increase		4.00	%		4.00	%		4.00	%

Market Values of Our Pension Plan Assets

The market values of our pension plan assets at December 31, 2015 and December 31, 2014 by asset category are as follows:

December 31, 2015	Total		Level 1		Level 2		Level 3
Equities:
U.S. Large Cap	$	8,520	$	—	$	8,520	$	—
U.S. Mid Cap		2,613		—		2,613		—
U.S. Small Cap		2,649		—		2,649		—
International Developed		6,406		—		6,406		—
Emerging Markets		4,114		—		4,114		—
Fixed income:
Core Fixed Income		23,782		—		23,782		—
Long Duration Fixed Income		55,931		—		55,931		—
Real Estate:
REIT Fund		2,212		—		2,212		—
Cash/Currency:
Cash Equivalents		612		—		612		—
Total market value	$	106,839	$	—	$	106,839	$	—

December 31, 2014	Total		Level 1		Level 2		Level 3
Equities:
U.S. Large Cap	$	9,212	$	—	$	9,212	$	—
U.S. Mid Cap		2,852		—		2,852		—
U.S. Small Cap		2,626		—		2,626		—
International Developed		6,181		—		6,181		—
Emerging Markets		4,139		—		4,139		—
Fixed income:
Core Fixed Income		27,062		—		27,062		—
Long Duration Fixed Income		61,718		—		61,718		—
Real Estate:
REIT Fund		2,395		—		2,395		—
Cash/Currency:
Cash Equivalents		512		—		512		—
Total market value	$	116,697	$	—	$	116,697	$	—

Estimated Future Benefit

There will be benefit payments under this plan beyond 2025.

Estimated Future Benefit Payments (000s)
2016	$	6,086
2017		6,343
2018		6,563
2019		6,753
2020		6,900
2021-2025		35,657
Total	$	68,302

Plan Assets

	2015			2014
Plan Assets
Asset Category
Equity securities		23	%		21	%
Fixed income securities		75	%		76	%
Other		2	%		3	%
Total		100	%		100	%

Asset Allocation Policy and Ranges Established in accordance with Overall Risk and Return Objectives of Portfolio

The following asset allocation policy and ranges have been established in accordance with the overall risk and return objectives of the portfolio:

	As of 12/31/2015			PermittedRange
Total Equity		23	%	10-30%
Total Fixed Income		75	%	70-90%
Other		2	%	0-10%