Annual report pursuant to Section 13 and 15(d)

Condensed Consolidated Statements of Cash Flows (Unaudited) (Parenthetical)

v2.4.0.8
Condensed Consolidated Statements of Cash Flows (Unaudited) (Parenthetical)
Dec. 31, 2013
Statement of Cash Flows [Abstract]  
Convertible senior notes interest rate 3.00%