XML 15 R23.htm IDEA: XBRL DOCUMENT  v2.3.0.11
Supplemental Disclosures of Cash Flow Information and Non-Cash Financing and Investing Activities (Tables)
6 Months Ended
Jun. 30, 2011
Supplemental Disclosures of Cash Flow Information and Non-Cash Financing and Investing Activities  
Summary of Supplemental Disclosures of Cash Flow Information and Non-Cash Financing and Investing Activities