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Shareholders' equity - Additional Information 1 (Detail) (Operating Partnership [Member], USD $) | 12 Months Ended
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Dec. 31, 2013
Series D Convertible Units [Member] |
Class of Stock [Line Items] |
Units outstanding | 4,375,000
Stock split conversion ratio | 1
Closing price per share | $ 18.00
Series D Convertible Units [Member] | Scenario One, Over Four Consecutive Quarters [Member] |
Class of Stock [Line Items] |
Adjusted funds from operations per common share | $ 0.80
Series D Convertible Units [Member] | Scenario Two, Two Consecutive Quarters [Member] |
Class of Stock [Line Items] |
Units distribution percentage | 70.00%
Series E Convertible Units [Member] |
Class of Stock [Line Items] |
Units outstanding | 4,375,000
Stock split conversion ratio | 1
Annualized EBITDA Contribution | $ 14,000,000
Series E Convertible Units [Member] | Scenario Three, Measurement Period [Member] |
Class of Stock [Line Items] |
EBITDA contribution | 28,000,000
Series C Convertible Units [Member] |
Class of Stock [Line Items] |
Percentage of Property Contribution | 3.90%
Percentage of scheduled rents | 98.00%
Property Contributions price per unit | $ 15.50
Units outstanding | 31,085,974
Dividend payable, amount | $ 4,698,000

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- Definition Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding. 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 SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Current Liabilities -URI http://asc.fasb.org/extlink&oid=6509677 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6935-107765 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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