v2.4.0.6

Derivative Instruments (Narrative) (Details) (USD $) | 12 Months Ended |  |  | 12 Months Ended
--- | --- | --- | --- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2012 NAB Australian Corporate Credit Facility [Member] | Oct. 31, 2012 US GE Capital Term Loan [Member] | Dec. 31, 2011 US GE Capital Term Loan [Member] | Dec. 31, 2012 US Bank Of America Revolver [Member]
Derivative [Line Items] |  |  |  |  |  |  |
Minimum swap percentage |  |  |  | 75.00% |  |  |
Interest rate swap term |  |  |  | 5 years |  |  |
Percentage of variable interest debt converted to fixed rate |  |  |  | 100.00% |  |  |
Swap contract rate |  |  |  | 5.50% |  |  | 1.44%
Interest rate swap, amount in-the-money |  |  |  | $ 160,000 |  |  |
Increase (decrease) in derivative fixed interest rate |  |  |  | (0.05%) |  |  | 0.10%
Note payable | 196,597,000 | 209,614,000 |  |  | 27,700,000 | 32,188,000 | 30,000,000
Interest rate swap | 5,855,000 | 4,722,000 |  |  |  |  | 29,100,000
Fixed interest rate |  |  |  | 8.15% |  |  | 5.84%
Fixed interest rate margin |  |  |  | 2.65% |  |  | 4.50%
Interest rate |  |  |  | 5.82% |  |  | 3.21%
Increase (decrease) in interest expense from derivatives | $ 1,100,000 | $ 5,000,000 | $ (284,000) |  |  |  |

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- Definition Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 13, 16 -Article 9 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 + Details
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