Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2013

Stock-Based Compensation [Abstract]

Fair value assumptions of stock options

	2013			2012			2011
Dividend yield		2.00	%		2.00	%		2.00	%
Risk-free interest rate		0.99	%		1.20	%		2.27	%
Weighted average expected volatility		34.35	%		48.94	%		47.24	%
Weighted average expected life		6 years			6 years			6 years
Weighted average per share fair value of options	$	3.80		$	5.03		$	5.56

Summary of Company's Stock Option Activities

				Weighted Average	Aggregate
		Weighted Average		Remaining	Intrinsic
Stock Options	Shares	Exercise Price		Contractual Term	Value (000s)
Outstanding at December 31, 2010	7,301,458	$	24.33
Granted	1,624,369		14.20
Exercised	(23,437)		12.66
Forfeited or expired	(1,847,116)		24.51
Outstanding at December 31, 2011	7,055,274	$	21.99	5.61	$	27
Options exercisable at December 31, 2011	4,623,935	$	26.10	4.01	$	7
Outstanding at December 31, 2011	7,055,274		$21.99
Granted	3,060,519		$12.97
Exercised	(11,120)		$13.16
Forfeited or expired	(1,464,115)		$21.56
Outstanding at December 31, 2012	8,640,558	$	18.88	6.40	$	570
Options exercisable at December 31, 2012	4,603,963	$	23.80	4.37	$	43
Outstanding at December 31, 2012	8,640,558		18.88
Granted	1,020,979		14.02
Exercised	(642,202)		13.43
Forfeited or expired	(985,092)		21.49
Outstanding at December 31, 2013	8,034,243	$	18.37	6.03	$	20,838
Options exercisable at December 31, 2013	4,923,720	$	21.48	4.62	$	8,580

Summary of stock options outstanding by range of exercise prices

The following table summarizes information about the Corporation’s stock options outstanding at December 31, 2013.
	Options	Weighted Average		Remaining	Options	Weighted Average
	Outstanding	Exercise Price		Life (Years)	Exercisable	Exercise Price
Range of Exercise Prices:
$0.00 — $10.00	2,000	$	9.26	5.56	2,000	$	9.26
$10.01 — $15.00	5,248,844		13.46	7.76	2,138,321		13.45
$15.01 — $20.00	608,806		17.42	4.83	608,806		17.42
$20.01 — $25.00	554,576		24.89	3.84	554,576		24.89
$25.01 — $30.00	307,172		29.03	0.21	307,172		29.03
Over $30.00	1,312,845		33.25	1.98	1,312,845		33.25
Total	8,034,243	$	18.37	6.03	4,923,720	$	21.48

Summary of Company's Nonvested Stock Option Activities

The following table summarizes information about the Corporation’s nonvested stock option activity for 2013, 2012, and 2011.
		Weighted Average
Stock Options	Shares	Grant Date Fair Value
Nonvested at December 31, 2010	2,025,720	$	4.09
Granted	1,624,369		5.56
Vested	(955,454)		3.77
Forfeited	(263,296)		4.85
Nonvested at December 31, 2011	2,431,339	$	5.11
Nonvested at December 31, 2011	2,431,339	$	5.11
Granted	3,060,519		5.03
Vested	(1,097,571)		4.88
Forfeited	(357,692)		5.12
Nonvested at December 31, 2012	4,036,595	$	5.11
Nonvested at December 31, 2012	4,036,595	$	5.11
Granted	1,020,979		3.80
Vested	(1,680,981)		5.10
Forfeited	(266,070)		5.05
Nonvested at December 31, 2013	3,110,523	$	4.69

Summary of Restricted Stock Awards Activity (Excluding Salary Shares)

The following table summarizes information about the Corporation’s restricted stock activity for 2013, 2012, and 2011.
		Weighted Average
Restricted Stock	Shares	Grant Date Fair Value
Outstanding at December 31, 2010	772,262	$	13.94
Granted	593,437		14.27
Vested	(169,499)		17.74
Forfeited	(182,435)		13.86
Outstanding at December 31, 2011	1,013,765	$	13.79
Outstanding at December 31, 2011	1,013,765	$	13.79
Granted	506,258		13.00
Vested	(533,014)		13.38
Forfeited	(54,584)		13.73
Outstanding at December 31, 2012	932,425	$	13.60
Outstanding at December 31, 2012	932,425	$	13.60
Granted	1,276,868		14.03
Vested	(626,480)		13.68
Forfeited	(71,048)		13.92
Outstanding at December 31, 2013	1,511,765	$	13.92