| Report Element Information |
| Run date/time: 6/5/2011 7:34:39 AM |
| Report Element Attributes: |
| Report element from taxonomy prefix: | us-gaap |
| US GAAP taxonomy standard label: | us-gaap: Accounts Payable and Accrued Liabilities, Noncurrent |
| Filer taxonomy standard label: | Accounts payable and accrued expenses, noncurrent |
| Documentation: | Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due after one year (or beyond the operating cycle if longer), including liabilities for compensation costs, fringe benefits other than pension and postretirement obligations, rent, contractual rights and obligations, and statutory obligations. |
| Balance type: | Credit |
| Period type: | As of (instant) |
| Report element type: | [Concept] |
| Data type: | Monetary (xbrli:monetaryItemType) |
| ID: | us-gaap_AccountsPayableAndAccruedLiabilitiesNoncurrent |
| Name: | us-gaap:AccountsPayableAndAccruedLiabilitiesNoncurrent |
| Labels of Report Element: (Labels from filer taxonomy, does not include other labels) |
| Role: | Label | Lang |
| Standard label (http://www.xbrl.org/2003/role/label) | Accounts payable and accrued expenses, noncurrent | en-US |
| References of Report Element, FASB Accounting Standards Codification: |
| Publisher, Name: | Topic | Sub Topic | Glossary | URI |
| FASB, Accounting Standards Codification | 210 | 10 | http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 |
| References of Report Element, SEC Regulation S-X (SX): |
| Publisher, Name: | Number | Section | Paragraph | Subparagraph | Article |
| SEC, Regulation S-X (SX) | 210 | 02 | 24 | 5 |
| References of Report Element, US GAAP Legacy: |
| Publisher: | Name | Number | Chapter | Section | Paragraph | Subparagraph | Article | Clause | Appendix |