v2.4.0.8
Net Investment in Sales-Type Leases Credit loss balances by evaluation method for impairment (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Sep. 30, 2012
Mar. 31, 2012
Dec. 31, 2011
Financing Receivable, Allowance for Credit Losses [Line Items]            
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment $ 22   $ 489      
Financing Receivable Gross - individually evaluated for impairment 22   489      
Financing Receivable, Individually Evaluated for Impairment 0   0      
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment 152   118      
Financing Receivable Gross - collectively evalauated for impairment 17,783   18,578      
Financing Receivable, Collectively Evaluated for Impairment 17,631   18,460      
Financing Receivable, Allowance for Credit Losses 174 184 607 637 659 284
Financing Receivable, Gross 17,805   19,067      
Financing Receivable, Net $ 17,631   $ 18,460