Employee Retirement Plans (Tables)

12 Months Ended

Dec. 31, 2012

Pension benefits

Employee retirement plans

Schedule of reconciliation of the beginning and ending balances of the projected benefit obligation, fair value of plan assets, funded status of plans, and amounts recognized in the consolidated balance sheets.

	December 31
	2012			2011
Change in projected benefit obligation:
Benefit obligation at beginning of year	$	32,800		$	28,557
Service cost		268			961
Interest cost		1,482			1,539
Actuarial loss		2,944			4,126
Benefits paid		(1,285	)		(975	)
Effect of curtailment		—			(1,408	)
Benefit obligation at end of year		36,209			32,800
Change in plan assets:
Fair value of plan assets at beginning of year		18,637			17,804
Actual return on plan assets		2,442			(109	)
Employer contributions through December 31		2,014			1,917
Benefits paid		(1,285	)		(975	)
Fair value of plan assets at end of year		21,808			18,637
Funded Status: accrued pension liability	$	(14,401	)	$	(14,163	)

Schedule of components of net periodic cost

	2012			2011			2010
Component of net periodic pension cost:
Service cost	$	268		$	961		$	800
Interest cost		1,482			1,539			1,432
Expected return on plan assets		(1,274	)		(1,357	)		(1,162	)
Amortization of net loss		770			454			324
Net periodic pension cost	$	1,246			1,597		$	1,394

Schedule of assumptions used in determining net periodic costs and summary of healthcare cost trend rates

	Year ended December 31
	2012			2011			2010
Discount rates		4.6	%		5.5	%		6.0	%
Rates of increase in compensation levels:
Salaried		3.5			3.5			3.5
Hourly		N/A			N/A			N/A
Expected long-term rate of return on assets		7.25			8.0			8.0

Schedule of expected benefit payments

2013	$	1,330
2014		1,340
2015		1,360
2016		1,380
2017		1,410
2018 - 2022		8,010

Schedule of weighted-average asset allocation and actual allocation for the qualified pension plans by asset category

	Target			2012				2011
Large Cap Equity		37	%	$	6,766	31	%	$	5,901	32	%
Mid Cap Equity		4	%		859	4	%		750	4	%
Small Cap Equity		3	%		876	4	%		783	4	%
International Equity		12	%		2,448	11	%		2,041	11	%
Emerging markets Equity		2	%		598	3	%		353	2	%
Fixed Income and Cash Equivalents		34	%		8,019	37	%		6,966	37	%
Real Estate		8	%		2,242	10	%		1,843	10	%
Total		100	%	$	21,808	100	%	$	18,637	100	%

Schedule of fair values of the Company's pension plan assets

The fair values of the Company's pension plan assets as of December 31, 2012 are as follows:

	Balance as of December 31, 2012		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Equity holdings	$	12,672	$	—	$	12,672	$	—
Fixed-income holdings		8,019		—		8,019		—
Alternative investments		1,117		—		—		1,117
Total pension plan assets	$	21,808	$	—	$	20,691	$	1,117

        The fair values of the Company's pension plan assets as of December 31, 2011 are as follows:

	Balance as of December 31, 2011		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Equity holdings	$	10,575	$	—	$	10,575	$	—
Fixed-income holdings		6,966		—		6,966		—
Alternative investments		1,096		—		—		1,096
Total pension plan assets	$	18,637	$	—	$	17,541	$	1,096

Schedule of reconciliation of the fair value measurements using significant unobservable inputs (Level 3)

	December 31,
	2012			2011
Balance, beginning of year	$	1,096		$	718
Deposits		187			408
Actual return on plan assets held at reporting date		125			129
Withdrawals		(291	)		(159	)
Balance, end of year	$	1,117		$	1,096

Postretirement benefits

Employee retirement plans

Schedule of reconciliation of the beginning and ending balances of the projected benefit obligation, fair value of plan assets, funded status of plans, and amounts recognized in the consolidated balance sheets.

	December 31
	2012			2011
Change in projected benefit obligation:
Benefit obligation at beginning of year	$	8,402		$	7,576
Service cost		281			263
Interest cost		360			407
Participant contributions		103			95
Changes in actuarial assumptions		(1,590	)		426
Benefits paid		(744	)		(365	)
Projected benefit obligation at end of year	$	6,812		$	8,402
Amounts recognized in the consolidated balance sheets consisted of:
Accrued expenses and other current liabilities	$	271		$	349
Retiree health benefit obligation		6,541			8,053
	$	6,812		$	8,402

Schedule of components of net periodic cost

	2012			2011			2010
Component of net postretirement health benefit cost:
Service cost	$	281		$	263		$	308
Interest cost		360			407			455
Amortization of net gain		(17	)		(61	)		(6	)
Curtailment gain		—			—			(667	)
Net postretirement healthcare benefit cost	$	624		$	609		$	90

Schedule of assumptions used in determining net periodic costs and summary of healthcare cost trend rates

	Year Ended December 31
	2012			2011			2010
Discount rate		4.4	%		5.5	%		6	%
Immediate healthcare cost trend rate		8.0			9.0			9.0
Ultimate healthcare cost trend rate		4.5			5.0			5.0
Assumed annual reduction in trend rate		**			*			0.5
Participation		80			80			80

*

Health Care Cost Trend rate is assumed to be 9.0% beginning in 2011 gradually reducing to an ultimate rate of 5.0% in 2017.

**

Health Care Cost Trend rate is assumed to be 8.0% beginning in 2012 gradually reducing to an ultimate rate of 4.5% in 2019.

Schedule of effect of one percentage point change in the healthcare cost trend rate

A one percentage point change in the healthcare cost trend rate would have the following effect at December 31, 2012:

	1% Increase		1% Decrease
Effect on total service and interest cost	$	71	$	(61	)
Effect on postretirement benefit obligation		808		(696	)