Dividends, Portion Upon Declaration, Percentage

No definition available.

Name:	cldt_DividendsPortionUponDeclarationPercentage
Namespace Prefix:	cldt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Dividends, Portion Upon Fully Vested, Percentage

+ References

No definition available.

+ Details

Name:	cldt_DividendsPortionUponFullyVestedPercentage
Namespace Prefix:	cldt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of trading days preceding the reporting date for which average of closing price of common shares is taken.

+ References

No definition available.

+ Details

Name:	cldt_NumberOfTradingDaysPrecedingReportingDateForWhichAverageOfClosingPriceOfCommonSharesIsTaken
Namespace Prefix:	cldt_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of Officers

+ References

No definition available.

+ Details

Name:	cldt_NumberofOfficers
Namespace Prefix:	cldt_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	cldt_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriodOne
Namespace Prefix:	cldt_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Share-based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Number Of Performance Measurements

+ References

No definition available.

+ Details

Name:	cldt_SharebasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNumberOfPerformanceMeasurements
Namespace Prefix:	cldt_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Annual Award Vesting Rights After Initial Portion, Percentage

+ References

No definition available.

+ Details

Name:	cldt_SharebasedCompensationArrangementbySharebasedPaymentAwardAnnualAwardVestingRightsAfterInitialPortionPercentage
Namespace Prefix:	cldt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Awards Vested To Date, Percentage

+ References

No definition available.

+ Details

Name:	cldt_SharebasedCompensationArrangementbySharebasedPaymentAwardAwardsVestedToDatePercentage
Namespace Prefix:	cldt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Distribution Entitlement, Percentage

+ References

No definition available.

+ Details

Name:	cldt_SharebasedCompensationArrangementbySharebasedPaymentAwardDistributionEntitlementPercentage
Namespace Prefix:	cldt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instrument Other than Options, Cumulative Number of Units Granted

+ References

No definition available.

+ Details

Name:	cldt_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentOtherthanOptionsCumulativeNumberofUnitsGranted
Namespace Prefix:	cldt_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Exchange Ratio

+ References

No definition available.

+ Details

Name:	cldt_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExchangeRatio
Namespace Prefix:	cldt_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Percentage of Target Value to be Paid Out

+ References

No definition available.

+ Details

Name:	cldt_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsPercentageofTargetValuetobePaidOut
Namespace Prefix:	cldt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Period of Risk Free Interest Rate

+ References

No definition available.

+ Details

Name:	cldt_SharebasedCompensationArrangementbySharebasedPaymentAwardFairValueAssumptionsPeriodofRiskFreeInterestRate
Namespace Prefix:	cldt_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Index Percentile Threshold

+ References

No definition available.

+ Details

Name:	cldt_SharebasedCompensationArrangementbySharebasedPaymentAwardIndexPercentileThreshold
Namespace Prefix:	cldt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Initial Award Vesting Rights, Percentage

+ References

No definition available.

+ Details

Name:	cldt_SharebasedCompensationArrangementbySharebasedPaymentAwardInitialAwardVestingRightsPercentage
Namespace Prefix:	cldt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Number of Awards Achieving Full Parity To Date

+ References

No definition available.

+ Details

Name:	cldt_SharebasedCompensationArrangementbySharebasedPaymentAwardNumberofAwardsAchievingFullParity
Namespace Prefix:	cldt_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Number of Recipients

+ References

No definition available.

+ Details

Name:	cldt_SharebasedCompensationArrangementbySharebasedPaymentAwardNumberofRecipients
Namespace Prefix:	cldt_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Portion Of Awards To Be Granted If Conditions Are Met

+ References

No definition available.

+ Details

Name:	cldt_SharebasedCompensationArrangementbySharebasedPaymentAwardPortionOfAwardsToBeGrantedIfConditionsAreMetPercentage
Namespace Prefix:	cldt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Portion of Awards Granted, Percentage

+ References

No definition available.

+ Details

Name:	cldt_SharebasedCompensationArrangementbySharebasedPaymentAwardPortionofAwardsGrantedPercentage
Namespace Prefix:	cldt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Termination Period Upon Change In Control

+ References

No definition available.

+ Details

Name:	cldt_SharebasedCompensationArrangementbySharebasedPaymentAwardTerminationPeriodUponChangeInControl
Namespace Prefix:	cldt_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Total Shareholder Return Threshold

+ References

No definition available.

+ Details

Name:	cldt_SharebasedCompensationArrangementbySharebasedPaymentAwardTotalShareholderReturnThreshold
Namespace Prefix:	cldt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Trustee Fees, Paid In Shares, Percentage

+ References

No definition available.

+ Details

Name:	cldt_TrusteeFeesPaidInSharesPercentage
Namespace Prefix:	cldt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Unrecognized compensation cost related to long term incentive plan units.

+ References

No definition available.

+ Details

Name:	cldt_UnrecognizedCompensationCostRelatedToLongTermIncentivePlanUnits
Namespace Prefix:	cldt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5047-113901

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

+ Details

Name:	us-gaap_AllocatedShareBasedCompensationExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

+ Details

Name:	us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

+ Details

Name:	us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Per share weighted average intrinsic value of equity-based compensation awards granted. Excludes stock and unit options.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodIntrinsicValue
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- 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

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

+ References

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The weighted average of per share prices paid for shares purchased on the open market for issuance to employees under the plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5047-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage of vesting of share-based compensation awards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

+ Details

Name:	us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

+ 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(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: 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(28))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21463-112644

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

+ Details

Name:	us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Fees charged annually for the professional services of a trustee, usually quoted as a percentage of the funds being managed. The fee for appointing an offshore Trustee is included in the trust price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.3)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

Name:	us-gaap_TrusteeFees
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_TitleOfIndividualAxis=cldt_IndependentTrusteesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=cldt_EquityIncentivePlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=cldt_ClassAPerformanceLTIPUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=cldt_TwoThousandTenEquityIncentivePlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=cldt_TimebasedRestrictedStockAwardsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=cldt_PerformancebasedRestrictedStockAwardsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_RestrictedStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=cldt_LongTermIncentivePlanUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheThreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardDateAxis=cldt_AwardedJune12015Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=cldt_LongTermIncentivePlanUnitsAbsoluteTSRComponentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=cldt_LongTermIncentivePlanUnitsRelativeTSRComponentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=cldt_LongTermIncentivePlanUnitsTimeBasedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardDateAxis=cldt_AwardedJanuary282016Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardDateAxis=cldt_AwardsMarch12017Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=cldt_LongTermIncentivePlanUnitsPerformanceBasedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Equity Incentive Plan - Additional Information (Details) $ / shares in Units, $ in Millions										1 Months Ended			7 Months Ended	12 Months Ended
	Jan. 16, 2018 shares	Mar. 01, 2017 $ / shares shares	Jan. 28, 2016 $ / shares shares	Jun. 01, 2015 measurement $ / shares shares	Jun. 04, 2014 officer shares	Sep. 30, 2013 officer shares	May 17, 2013 shares	Sep. 09, 2010 shares	Apr. 21, 2010 shares	Jan. 31, 2017 shares	Jan. 31, 2016 shares	Jan. 31, 2015 shares	Dec. 31, 2017 USD ($) officer shares	Dec. 31, 2017 USD ($) shares	Dec. 31, 2016 USD ($) $ / shares shares	Dec. 31, 2015 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense valuation of performance-based shares (in dollars per share) \| $ / shares															$ 21.21	$ 13.17
Total unrecognized compensation cost related to LTIP Units \| $													$ 4.4	$ 4.4	$ 2.6
Independent Trustees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Trustee fees \| $														$ 0.1	0.1	$ 0.1
Common shares issued as compensation for services performed (in shares)										23,980	26,488	16,542
Independent Trustees \| Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares issued as compensation for services performed (in shares)	21,670
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Trustee fees paid in shares (up to 100%) (at least 50%) (in percentage)														50.00%
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Trustee fees paid in shares (up to 100%) (at least 50%) (in percentage)														100.00%
Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)							3,000,000
Equity Incentive Plan \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period for share awards under equity							3 years
Equity Incentive Plan \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period for share awards under equity							5 years
Class A Performance LTIP Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividends, portion upon declaration (in percentage)				10.00%
Dividends, portion upon fully vested (in percentage)				90.00%
Distribution entitlement (in percentage)				10.00%
2010 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares available for issuance (in shares)													1,871,942	1,871,942
Number of trading days preceding the reporting date for which average of closing price of common shares is taken														10 days
Time-based Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period														3 years
Performance-based Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period														3 years
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation costs \| $													$ 0.1	$ 0.1	0.9
Weighted - average period for recognition of unrecognized compensation costs														1 year 1 month 6 days
Compensation expense recognized \| $														$ 0.8	$ 1.3	$ 1.6
Shares granted (in shares)														5,000	0	85,254
Shares forfeited (in shares)														25,870	0	0
Long Term Incentive Plan Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period for share awards under equity								5 years
Weighted - average period for recognition of unrecognized compensation costs														1 year 11 months 5 days
Compensation expense recognized \| $														$ 2.5	$ 1.2	$ 0.7
Exchange ratio														1
Shares granted (in shares)								26,250	246,960					223,922	112,251	183,300
Shares forfeited (in shares)								15,435
Percent of units with full parity that have vested													100.00%	100.00%
Initial award vesting rights (in percentage)				50.00%
Annual award vesting rights after initial portion (in percentage)				25.00%
Termination period upon change in control				18 months
Period of risk free interest rate														3 years
LTIP units achieving full parity (in shares)					231,525	26,250
Number of recipients \| officer					2	1
Long Term Incentive Plan Units \| Initial Vesting Period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				3 years
Long Term Incentive Plan Units \| 1st Anniversary After Initial Period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				1 year
Long Term Incentive Plan Units \| 2nd Anniversary After Initial Period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				2 years
Long Term Incentive Plan Units \| Awarded June 1, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (in shares)				183,300
Number of performance measurements \| measurement				2
Grants in period, intrinsic value, amount (in dollars per share) \| $ / shares				$ 14.13
Long Term Incentive Plan Units, Absolute TSR Component
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Portion of awards granted (in percentage)				60.00%
Long Term Incentive Plan Units, Absolute TSR Component \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Portion of awards to be granted if conditions are met (in percentage)				37.50%
Total shareholder return threshold (in percentage)				25.00%
Long Term Incentive Plan Units, Absolute TSR Component \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total shareholder return threshold (in percentage)				50.00%
Long Term Incentive Plan Units, Relative TSR Component
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Portion of awards granted (in percentage)				40.00%
Long Term Incentive Plan Units, Relative TSR Component \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Portion of awards to be granted if conditions are met (in percentage)				37.50%
Index percentile threshold				50.00%
Long Term Incentive Plan Units, Relative TSR Component \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Index percentile threshold				75.00%
Long Term Incentive Plan Units, Time-Based
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (in shares)														223,922	112,251
LTIP units achieving full parity (in shares)													593,948	593,948
Cumulative number of units granted (in shares)															777,248
Number of officers \| officer													6
Award vesting percentage														0.00%	33.00%
Long Term Incentive Plan Units, Time-Based \| Awarded January 28, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (in shares)			72,966
Grants in period, intrinsic value, amount (in dollars per share) \| $ / shares			$ 16.69
Long Term Incentive Plan Units, Time-Based \| Awards March 1, 2017 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (in shares)		89,574
Grants in period, intrinsic value, amount (in dollars per share) \| $ / shares		$ 18.53
Long Term Incentive Plan Units, Performance-Based
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Distribution entitlement (in percentage)			10.00%
Long Term Incentive Plan Units, Performance-Based \| Awarded January 28, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (in shares)			39,285
Total shareholder return threshold (in percentage)			8.00%
Grants in period, intrinsic value, amount (in dollars per share) \| $ / shares			$ 11.09
Long Term Incentive Plan Units, Performance-Based \| Awards March 1, 2017 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (in shares)		134,348
Grants in period, intrinsic value, amount (in dollars per share) \| $ / shares		$ 19.65
Long Term Incentive Plan Units, Performance-Based \| Minimum \| Awards March 1, 2017 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of target value to be paid out		50.00%
Long Term Incentive Plan Units, Performance-Based \| Maximum \| Awards March 1, 2017 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of target value to be paid out		150.00%