Stock-Based And Long-Term Compensation (Tables)

12 Months Ended

Dec. 31, 2015

Stock-Based And Long-Term Compensation [Abstract]

Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block]

Compensation Expense	Years Ended December 31,
	2015		2014		2013
Stock options	$	3,663	$	3,900	$	3,586
Restricted stock		9,219		15,800		21,460
Restricted stock units		19,699		11,282		-
Performance share units		10,733		10,688		10,014
Strategic performance share units		2,258		2,404		-
Total	$	45,572	$	44,074	$	35,060
Tax Benefit	Years Ended December 31,
	2015		2014		2013
Stock options	$	1,355	$	1,443	$	1,327
Restricted stock		3,411		5,846		7,940
Restricted stock units		7,289		4,174		-
Total	$	12,055	$	11,463	$	9,267

Summary Of The Valuation Assumptions Used To Calculate The Fair Value Of Stock Option Grants

	Years Ended December 31,
	2015		2014		2013
Weighted average fair value of grants	$	6.25	$	6.95	$	8.98
Black-Scholes-Merton Assumptions:
Risk free interest rate		1.33%		1.42%		0.63%
Expected life (years)		5		4		4
Volatility		47.07%		34.50%		48.41%
Dividend yield		1.30		1.23		-

Summary Of Stock Option Activity

	Number of Options	Weighted Average Option Price		Weighted Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value (in thousands)
Outstanding as of December 31, 2014	4,484,505	$	23.76	5.1	$	4,095
Granted	612,665	$	17.27
Exercised	(506,029)	$	17.43
Outstanding as of December 31, 2015	4,591,141	$	23.60	5.3	$	256
Exercisable as of December 31, 2015	3,488,262	$	24.48	4.3	$	256
Options expected to vest as of December 31, 2015	1,102,879	$	20.81	8.5	$	-

Summary Of Non-Vested Stock Option Activity

	Number of Options	Weighted Average Grant Date Fair Value
Non-vested as of December 31, 2014	824,488	$	7.83
Granted	612,665	$	17.27
Vested	(334,274)	$	25.01
Non-vested as of December 31, 2015	1,102,879	$	20.81

Summary Of The Status Of Restricted Stock

	Number of Shares	Weighted Average Grant Date Fair Value
Non-vested as of December 31, 2014	1,022,280	$	24.08
Vested	(678,880)	$	17.88
Forfeited	(50,463)	$	23.26
Non-vested as of December 31, 2015	292,937	$	23.13

Summary Of Restricted Stock Unit Activity

	Number of Restricted Stock Units	Weighted Average Grant Date Fair Value
Non-vested as of December 31, 2014	1,416,477	$	26.40
Granted	2,162,146	$	17.74
Vested	(460,400)	$	18.51
Forfeited	(330,334)	$	20.16
Non-vested as of December 31, 2015	2,787,889	$	20.41

Summary Of Employee Stock Purchase Plan Activity Table Text Block

	Years Ended December 31,
	2015		2014		2013
	2013 Plan		2013 Plan		2013 and 2007 Plans
Cash received for shares issued	$	4,803	$	4,870	$	4,124
Compensation expense	$	835	$	1,078	$	947
Shares issued		332,467		246,480		185,407

Summary of Deferred Compensation Balances Table Text Block

		December 31,
	Balance sheet location	2015		2014
Deferred compensation assets	Intangible and other long-term assets, net	$	11,548	$	12,982
Deferred compensation liabilities, short-term	Accounts payable	$	721	$	2,291
Deferred compensation liabilities, long-term	Other long-term liabilities	$	17,367	$	14,720