Stock-Based Compensation Plans (Tables)

9 Months Ended

Sep. 30, 2012

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary Of Stock Option Activity

The following table provides a summary of stock option activity under the plans for the three and nine months ended September 30, 2012:

	Three months ended September 30, 2012			Nine months ended September 30, 2012
	Number of Shares	Weighted-Average Exercise Price		Number of Shares	Weighted-Average Exercise Price
Options outstanding, at beginning of period	2,820,285	$	29.27	2,513,327	$	30.03
Options granted	—	—		398,616	23.81
Options exercised	29,833	12.85		62,707	12.85
Options forfeited or expired	45,301	27.52		104,085	31.32
Options outstanding, at end of period	2,745,151	$	29.47	2,745,151	$	29.47
Options exercisable, at end of period	2,168,744	$	31.86	2,168,744	$	31.86
Options expected to vest, at end of period	530,693	$	20.25	530,693	$	20.25

Summary Of Weighted-Average Assumptions

The fair value of each option award is estimated on the date of grant using the Black-Scholes Option-Pricing Model with the following weighted-average assumptions:

	2012		2011
Weighted-average assumptions:
Expected term (years)	6.6		6.5
Expected dividend yield	1.00	%	1.00	%
Expected forfeiture rate	9.00	%	9.00	%
Expected volatility	61.03	%	57.41	%
Risk-free interest rate	1.30	%	2.68	%
Fair value of option at grant date	$11.71		$12.74

Summary Of Restricted Stock Activity

The following tables summarize restricted unit activity, under the plans, for the three and nine months ended September 30, 2012:

	Three months ended September 30, 2012
	Time-Based
	Number of Units	Weighted Average Grant Date Fair Value
Restricted units, at beginning of period	—	$	—
Modified	51,496	21.11
Vested	9,215	18.22
Restricted units, at end of period	42,281	$	21.74
	Nine months ended September 30, 2012
	Time-Based
	Number of Units	Weighted Average Grant Date Fair Value
Restricted units, at beginning of period	—	$	—
Modified	51,496	21.11
Vested	9,215	18.22
Restricted units, at end of period	42,281	$	21.74

The following tables summarize restricted share activity, under the plans, for the three and nine months ended September 30, 2012:

	Three months ended September 30, 2012
	Time - Based			Performance - Based
	Number of Shares	Weighted-average Grant Date Fair Value		Number of Shares	Weighted-average Grant Date Fair Value
Restricted shares, at beginning of period	409,691	$	21.36	129,277	$	25.44
Granted	2,819	20.52		—
Vested	69,413	19.70		11,897	25.44
Forfeited/Modified	57,044	21.24		6,338	25.44
Restricted shares, at end of period	286,053	$	21.78	111,042	$	25.44

	Nine months ended September 30, 2012
	Time - Based			Performance - Based
	Number of Shares	Weighted-average Grant Date Fair Value		Number of Shares	Weighted-average Grant Date Fair Value
Restricted shares, at beginning of period	384,385	$	20.20	—	$	—
Granted	186,898	22.39		149,479	25.44
Vested	219,353	19.61		32,099	25.44
Forfeited/Modified	65,877	21.30		6,338	25.44
Restricted shares, at end of period	286,053	$	21.78	111,042	$	25.44