EMPLOYEE BENEFIT PLANS

12 Months Ended

Dec. 31, 2011

EMPLOYEE BENEFIT PLANS

EMPLOYEE BENEFIT PLANS

14.          EMPLOYEE BENEFIT PLANS

Defined Benefit Pension Plan and Unfunded Excess Benefit Plan

·PLC sponsors a defined benefit pension plan covering substantially all of its employees. Benefits are based on years of service and the employee’s compensation. PLC’s funding policy is to contribute amounts to the plan sufficient to meet the minimum funding requirements of Employee Retirement Income Security Act (“ERISA”) plus such additional amounts as PLC may determine to be appropriate from time to time. Contributions are intended to provide not only for benefits attributed to service to date, but also for those expected to be earned in the future. During the twelve months ended December 31, 2011, PLC contributed $5.7 million to its defined benefit pension plan for the 2010 plan year and $6.7 million to its defined benefit pension plan for the 2011 plan year. In addition, during January of 2012, PLC made a $2.3 million contribution to the defined benefit pension plan for the 2011 plan year. PLC has not yet determined what amount it will fund for the remainder of 2012, but estimates that the amount will be between $15 million and $20 million.

·Under the Pension Protection Act of 2006 (“PPA”), a plan could be subject to certain benefit restrictions if the plan’s adjusted funding target attainment percentage (“AFTAP”) drops below 80%. Therefore, PLC may make additional contributions in future periods to maintain an AFTAP of at least 80%. In general, the AFTAP is a measure of how well the plan is funded and is obtained by dividing the plan’s assets by the plan’s funding liabilities. AFTAP is based on participant data, plan provisions, plan methods and assumptions, funding credit balances, and plan assets as of the plan valuation date. Some of the assumptions and methods used to determine the plan’s AFTAP may be different from the assumptions and methods used to measure the plan’s funded status on a GAAP basis.

·PLC also sponsors an unfunded excess benefit plan, which is a nonqualified plan that provides defined pension benefits in excess of limits imposed on qualified plans by federal tax law.

Effective January 1, 2008, PLC made the following changes to its defined benefit pension plan. These changes have been reflected in the computations within this note.

·Employees hired after December 31, 2007, will receive benefits under a cash balance plan.

·Employees active on December 31, 2007, with age plus vesting service less than 55 years will receive a final pay-based pension benefit for service through December 31, 2007, plus a cash balance benefit for service after December 31, 2007.

·Employees active on December 31, 2007, with age plus vesting service equaling or exceeding 55 years, will receive a final pay-based pension benefit for service both before and after December 31, 2007, with a modest reduction in the formula for benefits earned after December 31, 2007.

·All participants terminating employment on or after December of 2007 may elect to receive a lump sum benefit.

PLC uses a December 31 measurement date for all of its plans. The following table presents the benefit obligation, fair value of plan assets, and the funded status of PLC’s defined benefit pension plan and unfunded excess benefit plan as of December 31. This table also includes the amounts not yet recognized as components of net periodic pension costs as of December 31:

	Defined Benefit						Unfunded Excess
	Pension Plan						Benefit Plan
	2011			2010			2011			2010
	(Dollars In Thousands)
Accumulated benefit obligation, end of year	$	186,300		$	154,113		$	33,675		$	30,195
Change in projected benefit obligation:
Benefit obligation at beginning of year	$	165,704		$	147,373		$	31,592		$	29,508
Service cost	8,682			7,423			679			584
Interest cost	8,938			8,091			1,506			1,545
Amendments	94			—			3			—
Actuarial (gain) or loss	23,859			7,890			4,187			1,444
Special termination benefits	—			—			—			—
Benefits paid	(8,115		)	(5,073		)	(1,711		)	(1,489		)
Benefit obligation at end of year	199,162			165,704			36,256			31,592
Change in plan assets:
Fair value of plan assets at beginning of year	117,856			102,276			—			—
Actual return on plan assets	2,874			12,355			—			—
Employer contributions(1)	12,443			8,298			1,711			1,489
Benefits paid	(8,115		)	(5,073		)	(1,711		)	(1,489		)
Fair value of plan assets at end of year	125,058			117,856			—			—
After reflecting FASB guidance:
Funded status	(74,104		)	(47,848		)	(36,256		)	(31,592		)
Amounts recognized in the balance sheet:
Other assets	—			—			—			—
Other liabilities	(74,104		)	(47,848		)	(36,256		)	(31,592		)
Amounts recognized in accumulated other comprehensive income:
Net actuarial loss	91,804			66,422			11,924			8,618
Prior service cost/(credit)	(2,208		)	(2,694		)	60			69
Net transition asset	$	89,596		$	63,728		$	11,984		$	8,687

(1) Employer contributions disclosed are based on the Company’s fiscal filing year.

Weighted-average assumptions used to determine benefit obligations as of December 31 are as follows:

	Defined Benefit Pension				Unfunded Excess
	Plan				Benefit Plan
	2011		2010		2011		2010
Discount rate	4.62	%	5.30	%	4.07	%	4.79	%
Rate of compensation increase	2.5 - 3.0		2.5 - 3.0		3.5 - 4.0		3.5 - 4.0
Expected long-term return on plan assets	7.75		7.75		N/A		N/A

The assumed discount rates used to determine the benefit obligations were based on an analysis of future benefits expected to be paid under the plans. The assumed discount rate reflects the interest rate at which an amount that is invested in a portfolio of high-quality debt instruments on the measurement date would provide the future cash flows necessary to pay benefits when they come due.

In assessing the reasonableness of its long-term rate of return assumption, PLC obtained 25 year annualized returns for each of the represented asset classes. In addition, PLC received evaluations of market performance based on PLC’s asset allocation as provided by external consultants. A combination of these statistical analytics provided results that PLC utilized to determine an appropriate long-term rate of return assumption.

Weighted-average assumptions used to determine the net periodic benefit cost for the year ended December 31 are as follows:

	Defined Benefit Pension Plan						Unfunded Excess Benefit Plan
	2011		2010		2009		2011		2010		2009
Discount rate	5.30	%	5.57	%	6.30	%	4.79	%	5.40	%	6.30	%
Rates of compensation increase	2.5 - 3.0		0 - 3.75		3.75		3.5 - 4.0		0 - 4.75		4.75
Expected long-term return on plan assets	7.75		8.00		8.00		N/A		N/A		N/A

Components of the net periodic benefit cost for the years ended December 31 are as follows:

	Defined Benefit Pension Plan									Unfunded Excess Benefit Plan
	2011			2010			2009			2011		2010		2009
	(Dollars In Thousands)
Service cost — benefits earned during the period	$	8,682		$	7,423		$	6,834		$	679	$	584	$	556
Interest cost on projected benefit obligation	8,938			8,091			7,847			1,506		1,545		1,701
Expected return on plan assets	(10,021		)	(9,349		)	(9,569		)	—		—		—
Amortization of prior service cost/(credit)	(392		)	(403		)	(403		)	12		12		12
Amortization of actuarial losses(1)	5,625			3,905			2,017			881		653		458
Total benefit cost	$	12,832		$	9,667		$	6,726		$	3,078	$	2,794	$	2,727

(1) 2011 average remaining service period used is 8.29 years and 7.51 years for the defined benefit pension plan and unfunded excess benefit plan, respectively.

The estimated net actuarial loss, prior service cost/(credit), and transition obligation for these plans that will be amortized from accumulated other comprehensive income into net periodic benefit cost during 2012 is as follows:

	Defined Benefit			Unfunded Excess
	Pension Plan			Benefit Plan
	(Dollars In Thousands)
Net actuarial loss	$	7,594		$	1,104
Prior service cost/(credit)	(392		)	12
Transition obligation	—			—

The amortization of any prior service cost is determined using a straight-line amortization of the cost over the average remaining service period of employees expected to receive benefits under the Plan.

Allocation of plan assets of the defined benefit pension plan by category as of December 31 are as follows:

	Target
	Allocation for
Asset Category	2012		2011		2010
Cash and cash equivalents	2.0	%	1.0	%	1.0	%
Equity securities	60.0		61.0		60.0
Fixed income	38.0		38.0		39.0
Total	100.0	%	100.0	%	100.0	%

PLC’s target asset allocation is designed to provide an acceptable level of risk and balance between equity assets and fixed income assets. The weighting towards equity securities is designed to help provide for an increased level of asset growth potential and liquidity.

Prior to July 1999, upon an employee’s retirement, a distribution from pension plan assets was used to purchase a single premium annuity from the Company in the retiree’s name. Therefore, amounts shown above as plan assets exclude assets relating to such retirees. Since July 1999, retiree obligations have been fulfilled from pension plan assets. The defined benefit pension plan has a target asset allocation of 60% domestic equities, 38% fixed income, and 2% cash and cash equivalents. When calculating asset allocation, PLC includes reserves for pre-July 1999 retirees.

PLC’s investment policy includes various guidelines and procedures designed to ensure assets are invested in a manner necessary to meet expected future benefits earned by participants. The investment guidelines consider a broad range of economic conditions. Central to the policy are target allocation ranges (shown above) by major asset categories. The objectives of the target allocations are to maintain investment portfolios that diversify risk through prudent asset allocation parameters, achieve asset returns that meet or exceed the plans’ actuarial assumptions, and achieve asset returns that are competitive with like institutions employing similar investment strategies.

The plan’s equity assets are in a Russell 3000 tracking fund that invests in a domestic equity index collective trust managed by Northern Trust Corporation and in an S&P 500 tracking fund (Spartan U.S.) managed by Fidelity. The plan’s cash equivalents are invested in a collective trust managed by Northern Trust Corporation. The plan’s fixed income assets are invested in a group deposit administration annuity contract with the Company.

Plan assets of the defined benefit pension plan by category as of December 31, are as follows:

	As of December 31,
Asset Category	2011		2010
	(Dollars In Thousands)
Cash and cash equivalents	$	1,004	$	2,072
Equity securities:
Russell 3000 Equity Index Fund	52,792		54,737
Spartan U.S. Equity Index Fund	29,735		21,644
Fixed income	41,527		39,403
Total investments	125,058		117,856
Employer contribution receivable	2,270		1,598
Total	$	127,328	$	119,454

The valuation methodologies used to determine the fair values reflect market participant assumptions and are based on the application of the fair value hierarchy that prioritizes observable market inputs over unobservable inputs. The following is a description of the valuation methodologies used for assets measured at fair value. The Plan’s group deposit administration annuity contract with the Company is valued at contract value, which the Company believes approximates fair value. Contract value represents contributions made under the contract, plus interest at the contract rate, less funds used to purchase annuities. Units in collective short-term and collective investment funds are valued at the unit value, which approximates fair value, as reported by the trustee of the collective short-term and collective investment funds on each valuation date. These methods of valuation may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, while the Company believes its valuation method is appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine fair value could result in a different fair value measurement at the reporting date.

The following table sets forth by level, within the fair value hierarchy, the Plan’s assets at fair value as of December 31, 2011:

	Level 1		Level 2		Level 3		Total
	(Dollars In Thousands)
Collective short-term investment fund	$	—	$	1,004	$	—	$	1,004
Collective investment funds	—		82,527		—		82,527
Group deposit administration annuity contract	—		—		41,527		41,527
Total investments	$	—	$	83,531	$	41,527	$	125,058

The following table sets forth by level, within the fair value hierarchy, the Plan’s assets at fair value as of December 31, 2010:

	Level 1		Level 2		Level 3		Total
	(Dollars In Thousands)
Collective short-term investment fund	$	—	$	2,072	$	—	$	2,072
Collective investment funds	—		76,381		—		76,381
Group deposit administration annuity contract	—		—		39,403		39,403
Total investments	$	—	$	78,453	$	39,403	$	117,856

For the year ended December 31, 2011, there were no transfers between levels.

For the year ended December 31, 2010, $5.0 million was transferred into Level 3 from Level 2. For the year ended December 31, 2010, $2.4 million was transferred into Level 2 from Level 3. These transfers were made to maintain an acceptable asset allocation as set by PLC’s investment policy.

For the year ended December 31, 2010, there were no transfers between Level 1 and Level 2.

A reconciliation of the beginning and ending balances for the fair value measurements for which significant unobservable inputs (Level 3) have been used is as follows:

	As of December 31,
	2011		2010
	(Dollars In Thousands)
Balance, beginning of year	$	39,403	$	34,892
Interest income	2,124		1,947
Transfers from collective short-term investments fund	—		5,000
Transfers to collective short-term investments fund	—		(2,436		)
Balance, end of year	$	41,527	$	39,403

Investment securities are exposed to various risks, such as interest rate, market, and credit risks. Due to the level of risk associated with certain investment securities and the level of uncertainty related to changes in the value of investment securities, it is at least reasonably possible that changes in risks in the near term could materially affect the amounts reported.

Estimated future benefit payments under the defined benefit pension plan are as follows:

	Defined Benefit		Unfunded Excess
Years	Pension Plan		Benefits Plan
	(Dollars In Thousands)
2012	$	8,770	$	2,984
2013	9,698		2,888
2014	9,448		2,880
2015	10,083		2,923
2016	11,420		3,152
2017-2021	67,686		14,888

Other Postretirement Benefits

In addition to pension benefits, PLC provides limited healthcare benefits to eligible retired employees until age 65. This postretirement benefit is provided by an unfunded plan. As of December 31, 2011 and 2010, the accumulated postretirement benefit obligation associated with these benefits was $0.9 million and $1.3 million, respectively.

The change in the benefit obligation for the retiree medical plan is as follows:

	As of December 31,
	2011			2010
	(Dollars In Thousands)
Change in Benefit Obligation
Benefit obligation, beginning of year	$	1,309		$	1,659
Service cost	9			15
Interest cost	28			50
Amendments	(29		)	—
Actuarial (gain) or loss	(297		)	(238		)
Plan participant contributions	255			272
Benefits paid	(326		)	(449		)
Special termination benefits	—			—
Benefit obligation, end of year	$	949		$	1,309

For the retiree medical plan, PLC’s discount rate assumption used to determine benefit obligation and the net periodic benefit cost as of December 31, 2011, is 1.97% and 2.66%, respectively.

For a closed group of retirees over age 65, PLC provides a prescription drug benefit. As of December 31, 2011 and 2010, PLC’s liability related to this benefit was less than $0.1 million and $0.1 million, respectively. PLC’s obligation is not materially affected by a 1% change in the healthcare cost trend assumptions used in the calculation of the obligation.

PLC also offers life insurance benefits for retirees from $10,000 up to a maximum of $75,000 which are provided through the payment of premiums under a group life insurance policy. This plan is partially funded at a maximum of $50,000 face amount of insurance. The accumulated postretirement benefit obligation associated with these benefits is as follows:

	As of December 31,
	2011			2010
	(Dollars In Thousands)
Change in Benefit Obligation
Benefit obligation, beginning of year	$	7,955		$	7,337
Service cost	118			110
Interest cost	416			413
Amendments	—			22
Actuarial (gain) or loss	816			387
Plan participant contributions	—			—
Benefits paid	(354		)	(314		)
Special termination benefits	—			—
Benefit obligation, end of year	$	8,951		$	7,955

For the postretirement life insurance plan, PLC’s discount rate assumption used to determine benefit obligation and the net periodic benefit cost as of December 31, 2011, is 4.62% and 5.40%, respectively.

PLC’s expected long-term rate of return assumption used to determine benefit obligation and the net periodic benefit cost as of December 31, 2011, is 3.45% and 3.75%, respectively. In assessing the reasonableness of its long-term rate of return assumption, PLC utilized a 20 year annualized return and a 20 year average return on Barclay’s short treasury index. PLC’s long-term rate of return assumption was determined based on analytics related to these 20 year return results.

Investments of PLC’s group life insurance plan are held by Wells Fargo Bank, N.A. Plan assets held by the Custodian are invested in a money market fund.

The fair value of each major category of plan assets for PLC’s postretirement life insurance plan is as follows:

	For The Year Ended December 31,
Category of Investment	2011		2010		2009
	(Dollars In Thousands)
Money Market Fund	$	6,193	$	6,217	$	6,235

Investments are stated at fair value and are based on the application of the fair value hierarchy that prioritizes observable market inputs over unobservable inputs. The money market funds are valued based on historical cost, which represents fair value, at year end. This method of valuation may produce a fair value calculation that may not be reflective of future fair values. Furthermore, while PLC believes its valuation method is appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine fair value could result in a different fair value measurement at the reporting date.

The following table sets forth by level, within the fair value hierarchy, the Plan’s assets at fair value as of December 31, 2011:

	Level 1		Level 2		Level 3		Total
	(Dollars In Thousands)
Money Market Fund	$	6,193	$	—	$	—	$	6,193

The following table sets forth by level, within the fair value hierarchy, the Plan’s assets at fair value as of December 31, 2010:

	Level 1		Level 2		Level 3		Total
	(Dollars In Thousands)
Money Market Fund	$	6,217	$	—	$	—	$	6,217

For the year ended December 31, 2011 and 2010, there were no transfers between levels.

Investments are exposed to various risks, such as interest rate and credit risks. Due to the level of risk associated with investments and the level of uncertainty related to credit risks, it is at least reasonably possible that changes in risk in the near term could materially affect the amounts reported.

401(k) Plan

PLC sponsors a 401(k) Plan which covers substantially all employees. Employee contributions are made on a before-tax basis as provided by Section 401(k) of the Internal Revenue Code or as after-tax “Roth” contributions. Employees may contribute up to 25% of their eligible annual compensation to the 401(k) Plan, limited to a maximum annual amount as set periodically by the Internal Revenue Service ($16,500 for 2011). The Plan also provides a “catch-up” contribution provision which permits eligible participants (age 50 or over at the end of the calendar year), to make additional contributions that exceed the regular annual contribution limits up to a limit periodically set by the Internal Revenue Service ($5,500 for 2011). PLC matches the sum of all employee contributions dollar for dollar up to a maximum of 4% of an employee’s pay per year per person. All matching contributions vest immediately.

Prior to 2009, employee contributions to PLC’s 401(k) Plan were matched through use of an ESOP established by PLC. Beginning in 2009, PLC adopted a cash match for employee contributions to the 401(k) plan and recorded an expense of $4.6 million for 2009. For the years ended December 31, 2011 and 2010, PLC recorded an expense of $5.6 million and $5.1 million, respectively. The Company’s portion of this expense was $4.3 million and $3.9 million for the years ended December 31, 2011 and 2010, respectively.

Effective as of January 1, 2005, PLC adopted a supplemental matching contribution program, which is a nonqualified plan that provides supplemental matching contributions in excess of the limits imposed on qualified defined contribution plans by federal tax law. The first allocations under this program were made in early 2006, with respect to the 2005 plan year. The expense recorded by PLC for this employee benefit was $0.4 million, $0.2 million, and $0.3 million, respectively, in 2011, 2010, and 2009.

Deferred Compensation Plan

PLC has established deferred compensation plans for directors, officers, and others. Compensation deferred is credited to the participants in cash, mutual funds, common stock equivalents, or a combination thereof. PLC may, from time to time, reissue treasury shares or buy in the open market shares of common stock to fulfill its obligation under the plans. As of December 31, 2011, the plans had 886,600 common stock equivalents credited to participants. PLC’s obligations related to its deferred compensation plans are reported in other liabilities, unless they are to be settled in shares of its common stock, in which case they are reported as a component of shareowners’ equity. The Company’s portion of expenses related to the deferred compensation plan, is immaterial to the Company.