Stock-Based Compensation (Details) $ / shares in Units, $ in Thousands			12 Months Ended
		Jun. 03, 2013 shares	Dec. 31, 2015 USD ($) Installment Level $ / shares shares	Dec. 31, 2014 USD ($) $ / shares shares	Dec. 31, 2013 USD ($) $ / shares	Apr. 30, 2010 shares
Stock-Based Compensation [Abstract]
Stock-based compensation expense (income) | $			$ 7,400	$ 17,504	$ 32,620
Performance-Based Options [Member]
Stock-Based Compensation [Abstract]
Stock-based compensation expense (income) | $			$ (6,400)	$ 5,200	$ 23,200
2010 Omnibus Incentive Plan [Member]
Stock-Based Compensation [Abstract]
Number of shares authorized for issuance (in shares) | shares						7,000,000
Number of additional shares authorized for issuance (in shares) | shares		3,200,000
2010 Omnibus Incentive Plan [Member] | Stock Options [Member]
Fair Value Assumptions [Abstract]
Weighted average grant date fair value of grants (in dollars per share)			$ 16.26	$ 23.01	$ 22.10
Risk-free interest rate	[1]		1.70%	1.70%	1.40%
Dividend yield	[2]		2.10%	1.90%	3.10%
Expected volatility	[3]		46.80%	45.40%	41.70%
Expected life in months	[4]		65 months	62 months	62 months
Options [Roll Forward]
Outstanding at beginning of year (in shares) | shares			5,962,500
Granted (in shares) | shares			218,500
Exercised (in shares) | shares			(720,400)
Forfeited/cancelled/expired (in shares) | shares			(392,200)
Outstanding at end of year (in shares) | shares			5,068,400	5,962,500
Exercisable at end of year (in shares) | shares			2,461,600
Options, Weighted-Average Exercise Price [Roll Forward]
Outstanding at beginning of year (in dollars per share)			$ 50.43
Granted (in dollars per share)			44.72
Exercised (in dollars per share)			21.11
Forfeited/cancelled/expired (in dollars per share)			69.17
Outstanding at end of year (in dollars per share)			52.91	$ 50.43
Exercisable at end of year (in dollars per share)			$ 29.10
Outstanding options, weighted-average remaining contractual term			3 years 3 months 4 days
Exercisable options, weighted-average remaining contractual term			1 year 8 months 12 days
Options, Additional Information [Abstract]
Aggregate intrinsic value | $			$ 29,406
Aggregate intrinsic value, exercisable | $			29,369
Fair value of options vested and expensed, net of tax | $			2,800	$ 4,200	$ 13,200
Cash proceeds from stock options exercised | $			13,041	11,042	37,869
Tax benefit realized for stock options exercised | $			4,451	11,947	41,914
Intrinsic value of stock options exercised | $			$ 12,085	$ 17,159	$ 241,700
Nonvested Restricted Stock Awards, Weighted-Average Grant Date Fair Value [Abstract]
Granted (in dollars per share)			$ 44.72
Unrecognized Stock-Based Compensation Expense [Abstract]
Unrecognized stock-based compensation expense | $			$ 4,400
Unrecognized stock-based compensation expense, period for recognition			2 years 7 months 6 days
2010 Omnibus Incentive Plan [Member] | Stock Options [Member] | Minimum [Member]
Stock-Based Compensation [Abstract]
Contractual term of stock options granted			7 years
2010 Omnibus Incentive Plan [Member] | Stock Options [Member] | Maximum [Member]
Stock-Based Compensation [Abstract]
Contractual term of stock options granted			10 years
2010 Omnibus Incentive Plan [Member] | Service-Based Options [Member]
Options [Roll Forward]
Outstanding at beginning of year (in shares) | shares			1,924,200
Granted (in shares) | shares			179,700
Exercised (in shares) | shares			(545,000)
Forfeited/cancelled/expired (in shares) | shares			(89,200)
Outstanding at end of year (in shares) | shares			1,469,700	1,924,200
Exercisable at end of year (in shares) | shares			1,175,300
Options, Weighted-Average Exercise Price [Roll Forward]
Outstanding at beginning of year (in dollars per share)			$ 29.08
Granted (in dollars per share)			42.51
Exercised (in dollars per share)			18.14
Forfeited/cancelled/expired (in dollars per share)			60.99
Outstanding at end of year (in dollars per share)			32.85	$ 29.08
Exercisable at end of year (in dollars per share)			$ 26.68
Outstanding options, weighted-average remaining contractual term			2 years 3 months 29 days
Exercisable options, weighted-average remaining contractual term			1 year 5 months 5 days
Options, Additional Information [Abstract]
Aggregate intrinsic value | $			$ 20,228
Aggregate intrinsic value, exercisable | $			$ 20,191
Nonvested Restricted Stock Awards, Weighted-Average Grant Date Fair Value [Abstract]
Granted (in dollars per share)			$ 42.51
2010 Omnibus Incentive Plan [Member] | Performance-Based Options [Member]
Stock-Based Compensation [Abstract]
Number of installments for vesting | Installment			3
Number of established performance levels for vesting | Level			3
Options [Roll Forward]
Outstanding at beginning of year (in shares) | shares			4,038,300
Granted (in shares) | shares			38,800
Exercised (in shares) | shares			(175,400)
Forfeited/cancelled/expired (in shares) | shares			(303,000)
Outstanding at end of year (in shares) | shares			3,598,700	4,038,300
Exercisable at end of year (in shares) | shares			1,286,300
Options, Weighted-Average Exercise Price [Roll Forward]
Outstanding at beginning of year (in dollars per share)			$ 60.61
Granted (in dollars per share)			54.97
Exercised (in dollars per share)			30.35
Forfeited/cancelled/expired (in dollars per share)			71.58
Outstanding at end of year (in dollars per share)			61.10	$ 60.61
Exercisable at end of year (in dollars per share)			$ 31.31
Outstanding options, weighted-average remaining contractual term			3 years 7 months 20 days
Exercisable options, weighted-average remaining contractual term			1 year 11 months 5 days
Options, Additional Information [Abstract]
Aggregate intrinsic value | $			$ 9,177
Aggregate intrinsic value, exercisable | $			$ 9,177
Nonvested Restricted Stock Awards, Weighted-Average Grant Date Fair Value [Abstract]
Granted (in dollars per share)			$ 54.97
2010 Omnibus Incentive Plan [Member] | Performance-Based Options [Member] | First Performance Level
Stock-Based Compensation [Abstract]
Vesting percentage			33.00%
2010 Omnibus Incentive Plan [Member] | Performance-Based Options [Member] | Second Performance Level
Stock-Based Compensation [Abstract]
Vesting percentage			33.00%
2010 Omnibus Incentive Plan [Member] | Performance-Based Options [Member] | Third Performance Level
Stock-Based Compensation [Abstract]
Vesting percentage			33.00%
2010 Omnibus Incentive Plan [Member] | Non-Vested Restricted Stock [Member]
Options, Weighted-Average Exercise Price [Roll Forward]
Granted (in dollars per share)			$ 54.80
Nonvested Restricted Stock Awards, Number of Shares [Roll Forward]
Nonvested at beginning of year (in shares) | shares			673,800
Granted (in shares) | shares			358,100
Vested (in shares) | shares			(249,100)
Forfeited (in shares) | shares			(120,600)
Nonvested at end of year (in shares) | shares			662,200	673,800
Nonvested Restricted Stock Awards, Weighted-Average Grant Date Fair Value [Abstract]
Nonvested, beginning balance (in dollars per share)			$ 60.14
Granted (in dollars per share)			54.80
Vested (in dollars per share)			52.52
Forfeited (in dollars per share)			56.03
Nonvested, Ending Balance (in dollars per share)			$ 60.87	$ 60.14
Unrecognized Stock-Based Compensation Expense [Abstract]
Unrecognized stock-based compensation expense | $			$ 22,200
Unrecognized stock-based compensation expense, period for recognition			2 years 6 months
Amended and Restated 2010 Omnibus Incentive Plan [Member] | Performance-Based Options [Member]
Stock-Based Compensation [Abstract]
Number of installments for vesting | Installment			4
Number of established performance levels for vesting | Level			4
Amended and Restated 2010 Omnibus Incentive Plan [Member] | Performance-Based Options [Member] | First Performance Level
Stock-Based Compensation [Abstract]
Vesting percentage			25.00%
Amended and Restated 2010 Omnibus Incentive Plan [Member] | Performance-Based Options [Member] | Second Performance Level
Stock-Based Compensation [Abstract]
Vesting percentage			25.00%
Amended and Restated 2010 Omnibus Incentive Plan [Member] | Performance-Based Options [Member] | Third Performance Level
Stock-Based Compensation [Abstract]
Vesting percentage			25.00%
Amended and Restated 2010 Omnibus Incentive Plan [Member] | Performance-Based Options [Member] | Fourth Performance Level
Stock-Based Compensation [Abstract]
Vesting percentage			25.00%

[1] The risk-free interest rate is based upon the rate on a zero coupon U.S. Treasury bill, for periods within the contractual life of the option, in effect at the time of the grant.

[2] The dividend yield is based on the average of historical stock prices and actual dividends paid.

[3] Expected volatility is based on the historical volatility of the Company's stock price, over a period similar to the expected life of the option.

[4] The expected term of the option is based on the historical employee exercise behavior, the vesting terms of the respective option, and a contractual life of either seven or ten years.