Long-Term Debt (Tables)

9 Months Ended

Sep. 30, 2014

Long-Term Debt [Abstract]

Long-term debt

Debt consisted of the following:

( in thousands )	As of
	September 30,			December 31,
	2014			2013
3.55% senior notes due in 2015	$	884,956		$	884,844
2.70% senior notes due in 2016		499,736			499,644
Total debt		1,384,692			1,384,488
Current portion of debt		(884,956	)
Debt (less current portion)	$	499,736		$	1,384,488
Fair value of debt*	$	1,407,703		$	1,429,921

* The fair value of the senior notes were estimated using level 2 inputs comprised of quoted prices in active markets, market indices and interest rate measurements for debt with similar remaining maturity.