Summary Of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2013

Summary Of Significant Accounting Policies [Abstract]

Schedule Of Long-Term Investments Measured At Fair Value Using Significant Unobservable Inputs (Level 3 Inputs)

(in thousands)		2013		2012
Balance as of January 1	$	10,324	$	24,673
Net unrealized gains included in other comprehensive income		418		1,476
Sales of investments at par value		(821)		(15,825)
Balance as of December 31	$	9,921	$	10,324

Unrealized losses still held	$	1,433	$	1,851

Schedule Of Calculation Of Basic And Diluted Earnings Per Share

			Year Ended December 31,
(in thousands, except per share data)			2013		2012		2011

Net income		$	111,159	$	56,607	$	51,959

Denominator for basic earnings per share – weighted-
	average number of common shares outstanding
	during the period		54,213		56,320		59,284
Incremental common shares attributable to outstanding
	dilutive options		324		150		270
Incremental common shares attributable to outstanding
	restricted shares, restricted stock units and phantom stock		242		164		219
Denominator for diluted earnings per share			54,779		56,634		59,773
Basic earnings per share		$	2.05	$	1.01	$	0.88
Diluted earnings per share		$	2.03	$	1.00	$	0.87

Schedule Of Unrecognized Compensation Cost Nonvested Awards

						Phantom		Performance
						Stock and		Based
						Restricted		Restricted
		Stock		Restricted		Stock		Stock
(in thousands)		Options		Shares		Units		Units⁽¹⁾
Unrecognized compensation cost	$	3,839	$	2,166	$	4,081	$	1,565
Remaining weighted-average
amortization period		2.2 years		1.8 years		2.8 years		2.2 years

⁽¹⁾ Based on the probable achievement of the performance goals identified in each award.

Summary Of Weighted-Average Assumptions Used To Value Option Grants

		Year Ended December 31,
		2013	2012	2011
Stock Options
	Expected term of options	7.4 years	6.3 years	6.2 years
	Expected volatility	42%	42%	41%
	Risk-free interest rate	1.396%	1.305%	2.674%
	Dividend yield	zero	zero	zero

- Definition

Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income (loss), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset.

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