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Other Long-Term Obligations (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Disclosure Other Long Term Obligations [Abstract]    
Long-term lease obligations, net of current portion $ 24,815 $ 25,240
Deferred proceeds 11,205 11,668
Deferred compensation 14,149 9,939
Other 2,773 4,063
Other long-term obligations $ 52,942 $ 50,910