OTHER ASSETS

12 Months Ended

Dec. 31, 2013

Investments, All Other Investments [Abstract]

OTHER ASSETS

OTHER ASSETS

Other assets at December 31, 2013 and 2012 consisted of the following (in thousands):

	2013		2012
Deferred debt issuance costs	$	16,465	$	23,523
Other	17,049		12,305
Total	$	33,514	$	35,828

Deferred debt issuance costs arose from (i) the $1.0 billion aggregate principal amount of 1.0% Convertible Senior Notes, due March 15, 2018, issued in March 2012; (ii) a $1.0 billion revolving credit facility in October 2011; and (iii) the Company's issuance, in March 2010, of the $575.0 million aggregate principal amount of 1.25% Convertible Senior Notes, due March 15, 2015, and (iv) the $1.0 billion aggregate principal amount of 0.35% Convertible Senior Notes, due June 15, 2020, issued in May 2013.  Deferred debt issuance costs are being amortized using the effective interest rate method and the period of amortization was determined at inception of the related debt agreements based upon the stated maturity dates. Unamortized debt issuance costs written off to interest expense in the year ended December 31, 2013 related to early conversion of convertible debt amounted to $2.4 million.