XML 21 R47.htm IDEA: XBRL DOCUMENT v2.4.0.6
Related-party arrangements (Details) (USD $)
In Thousands, unless otherwise specified
 1 Months Ended 6 Months Ended
May 31, 2012
Jun. 30, 2012
Principal amount outstanding under loan arrangement sequent to completion of common stock purchase agreement    
Principal amount outstanding at December 31, 2011   $ 277,216
Borrowings   6,250
Principal amount outstanding at June 30, 2012   218,142
Capitalization of accrued and unpaid interest due and payable as of June 27, 2012   11,876
Cancellation of principal indebtedness related to the common stock purchase agreement completed on June 27, 2012 $ 200,000 $ (77,200)