Other Assets - Credit Quality Indicators (Details) $ in Thousands	Mar. 31, 2021 USD ($)
Loan Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021	$ 0
2020	1,200
2019	14
2018	0
2017	4,301
Prior	0
Total	5,515
Hardware Financing Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021	0
2020	0
2019	98
2018	49
2017	0
Prior	0
Total	147
Current | Loan Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021	0
2020	1,200
2019	14
2018	0
2017	4,301
Prior	0
Total	5,515
Current | Hardware Financing Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021	0
2020	0
2019	53
2018	32
2017	0
Prior	0
Total	85
30-59 days past due | Loan Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021	0
2020	0
2019	0
2018	0
2017	0
Prior	0
Total	0
30-59 days past due | Hardware Financing Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021	0
2020	0
2019	45
2018	17
2017	0
Prior	0
Total	62
60-89 days past due | Loan Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021	0
2020	0
2019	0
2018	0
2017	0
Prior	0
Total	0
60-89 days past due | Hardware Financing Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021	0
2020	0
2019	0
2018	0
2017	0
Prior	0
Total	0
90-119 days past due | Loan Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021	0
2020	0
2019	0
2018	0
2017	0
Prior	0
Total	0
90-119 days past due | Hardware Financing Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021	0
2020	0
2019	0
2018	0
2017	0
Prior	0
Total	0
120+ days past due | Loan Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021	0
2020	0
2019	0
2018	0
2017	0
Prior	0
Total	0
120+ days past due | Hardware Financing Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021	0
2020	0
2019	0
2018	0
2017	0
Prior	0
Total	$ 0