Receivables (Installment Receivables by Class) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
Sep. 30, 2014	Dec. 31, 2013
Total Installment Receivables
Non-Impaired Installment receivables with no related allowance recorded	$ 1,133	$ 1,367
Impaired Installment receivables with a related allowance recorded	7,661	7,552
Total Installment Receivables	8,794	8,919
Unpaid Principal Balance
Non-Impaired Installment receivables with no related allowance recorded	1,084	1,306
Impaired Installment receivables with a related allowance recorded	7,661	7,552
Total Installment Receivables	8,745	8,858
Related Allowance for Doubtful Accounts
Impaired Installment receivables with a related allowance recorded	6,217	6,039
Interest Income Recognized
Non-Impaired Installment receivables with no related allowance recorded	64	101
Impaired Installment receivables with a related allowance recorded	0	0
Total Installment Receivables	64	101
U.S.
Total Installment Receivables
Impaired Installment receivables with a related allowance recorded	7,580	7,464
Unpaid Principal Balance
Impaired Installment receivables with a related allowance recorded	7,580	7,464
Related Allowance for Doubtful Accounts
Impaired Installment receivables with a related allowance recorded	6,136	5,951
Interest Income Recognized
Impaired Installment receivables with a related allowance recorded	0	0
CANADA
Total Installment Receivables
Non-Impaired Installment receivables with no related allowance recorded	1,133	1,367
Impaired Installment receivables with a related allowance recorded	81	88
Total Installment Receivables	1,214	1,455
Unpaid Principal Balance
Non-Impaired Installment receivables with no related allowance recorded	1,084	1,306
Impaired Installment receivables with a related allowance recorded	81	88
Total Installment Receivables	1,165	1,394
Related Allowance for Doubtful Accounts
Impaired Installment receivables with a related allowance recorded	81	88
Interest Income Recognized
Non-Impaired Installment receivables with no related allowance recorded	64	101
Impaired Installment receivables with a related allowance recorded	0	0
Total Installment Receivables	$ 64	$ 101

Financing Receivable, Interest Income, Accrual Method

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- Definition

Financing Receivable, Recorded Investment

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- Definition

Financing Receivable, Unpaid Principal Balance

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Financing Receivable, with No Related Allowance, Interest Income, Accrual Method

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Financing Receivable, with No Related Allowance, Recorded Investment

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Financing Receivable, with No Related Allowance, Unpaid Principal Balance

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No definition available.

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- Definition

Amount of allowance for credit losses related to recorded investment.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 15

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Amount of interest income, recognized on accrual basis, on financing receivables, for which there is a related allowance for credit losses and are recognized as impaired.

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-Publisher FASB

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Amount of investment in impaired financing receivables for which there is a related allowance for credit losses.

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Unpaid principal balance of impaired financing receivables for which there is a related allowance for credit losses.

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-Publisher FASB

-Name Accounting Standards Codification

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