Debt Instrument, Prepayment Penalty, Period Without Penalty

No definition available.

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- Definition

Amount of amortization expense attributable to debt issuance costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28555-108399

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-Publisher FASB
-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(8))
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(8))
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

+ Details

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Balance Type:	debit
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- Definition

Amount of assets pledged to secure a debt instrument.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

+ Details

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- Definition

Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Current Liabilities
-URI http://asc.fasb.org/extlink&oid=6509677

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+ Details

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- Definition

Amount of the fee for available but unused credit capacity under the credit facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
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Balance Type:	debit
Period Type:	duration

- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

No definition available.

+ Details

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Debt - 2017 Activity (Details) - USD ($)				3 Months Ended		6 Months Ended
Debt - 2017 Activity (Details) - USD ($)	May 30, 2017	Mar. 03, 2017	Mar. 01, 2017	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Debt Instrument [Line Items]
Unused borrowing capacity				$ 314,400,000		$ 314,400,000
Amortization of deferred financing fees				504,000	$ 401,000	1,007,000	$ 780,000
Net book value of properties that are collateral for debt arrangements				207,300,000		207,300,000		$ 229,900,000
Secured Debt
Debt Instrument [Line Items]
Deferred financing fees, net				$ 718,000		$ 718,000		873,000
Wells Fargo, National Association Due August 1, 2017 \| Secured Debt
Debt Instrument [Line Items]
Penalty free prepayment period						3 months
Stated interest rate				5.90%		5.90%
Webster Bank, National Association due May 31, 2017 [Member] \| Secured Debt
Debt Instrument [Line Items]
Penalty free prepayment period						3 months
Thrivent Financial for Lutherans Due December 15, 2023 [Member] \| Secured Debt
Debt Instrument [Line Items]
Stated interest rate				4.78%		4.78%
Connecticut General Life Insurance Company - Facility 2 \| Secured Debt
Debt Instrument [Line Items]
Stated interest rate				5.75%		5.75%
Wells Fargo Bank, National Association CMBS Loan \| Secured Debt
Debt Instrument [Line Items]
Penalty free prepayment period						3 months
Stated interest rate				4.31%		4.31%
Webster Bank, National Association due May 31, 2017 \| Secured Debt
Debt Instrument [Line Items]
Stated interest rate				3.64%		3.64%
Webster Bank, National Association due May 29, 2017 \| Secured Debt
Debt Instrument [Line Items]
Stated interest rate				3.66%		3.66%
Union Fidelity Life Insurance Co Due April 30, 2017 \| Secured Debt
Debt Instrument [Line Items]
Penalty free prepayment period						2 months
Stated interest rate				5.81%		5.81%
Prepaid Expenses and Other Assets
Debt Instrument [Line Items]
Deferred financing fees, net				$ 2,000,000		$ 2,000,000		2,300,000
Accounts Payable, Accrued Expenses and Other Liabilities
Debt Instrument [Line Items]
Interest payable				5,400,000		5,400,000		$ 5,700,000
Yorkville, WI, Q4 2014 [Member] \| Wells Fargo, National Association Due August 1, 2017 \| Secured Debt
Debt Instrument [Line Items]
Repayments of Debt	$ 1
East Windsor, Q4, 2016 [Member] \| Webster Bank, National Association due May 31, 2017 \| Secured Debt
Debt Instrument [Line Items]
Repayments of Debt		$ 1
Portland, ME, Q1 2012, 1 [Member] \| Webster Bank, National Association due May 29, 2017 \| Secured Debt
Debt Instrument [Line Items]
Repayments of Debt			$ 1
Hazelwood, MO, Q3 2011 [Member] \| Union Fidelity Life Insurance Co Due April 30, 2017 \| Secured Debt
Debt Instrument [Line Items]
Repayments of Debt			$ 1
Interest Expense [Member] \| Line of Credit \| $450 Million Wells Fargo Unsecured Credit Facility \| Unsecured Debt
Debt Instrument [Line Items]
Line of Credit Facility, Commitment Fee Amount				$ 278,000	$ 344,000	$ 553,000	$ 688,000