Acquisition of Hotel Properties (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014
Business acquisition, unaudited proforma information
Total revenues	$ 801,578	$ 769,553
Operating income (loss)	141,487	123,542
Net income (loss) attributable to common shareholders	$ 79,576	$ 75,401
Net income (loss) per share available to common shareholders - basic (usd per share)	$ 1.10	$ 1.04
Net income (loss) per share available to common shareholders — diluted (usd per share)	$ 1.09	$ 1.04

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)-(3)
-URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463

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The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma income from continuing operations before changes in accounting and extraordinary items, net of tax effect, for the period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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