Summary of Significant Accounting Policies (Additional Information 2) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) segment entity	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Aggregate allowance for doubtful accounts	$ 4,200	$ 5,100
Capital lease obligations	18,100	26,900
Lease financing obligations	20,600	22,800
Net book value of assets associated with leases	$ 41,500	51,000
Number of operating segments | segment	1
Number of reportable segments | segment	1
Valuation allowance			$ 3,395
Financial assets	$ 0	0
Financial liability	0	0
Net operating loss carry forwards related to Federal income taxes	45,500
Net operating loss carry forwards related to State income taxes	50,300
Unrecognized Tax Benefits	0	0	0
Interest and penalties related to income taxes	$ 0	$ 0	$ 0
Number of subsidiaries taxed as taxable REIT | entity	2
Effective tax rate	46.50%	34.80%	0.00%
Initial lease liability	$ 38,708
Minimum [Member] | Federal [Member]
Summary Of Significant Accounting Policies [Line Items]
Net operating loss carry forwards, expiration period	13 years
Minimum [Member] | State [Member]
Summary Of Significant Accounting Policies [Line Items]
Net operating loss carry forwards, expiration period	3 years
Maximum [Member] | State [Member]
Summary Of Significant Accounting Policies [Line Items]
Net operating loss carry forwards, expiration period	20 years
Customer One [Member] | Rental Revenue [Member] | Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Percentage of total revenue	13.00%
Two Customers [Member] | Accounts Receivable [Member] | Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Percentage of total accounts receivable	10.00%
Other Customers [Member] | Rental Revenue [Member] | Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Percentage of total revenue	4.00%
Nine Customers [Member] | Accounts Receivable [Member] | Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Percentage of total accounts receivable	5.00%
Nine Customers [Member] | Accounts Receivable [Member] | Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Percentage of total accounts receivable	73.00%
Carpathia Hosting, Inc.
Summary Of Significant Accounting Policies [Line Items]
Lease financing obligations	$ 20,600