Condensed Consolidating Financial Information - Condensed Consolidated Statements of Cash Flows (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Operating activities
Net cash provided by (used in) operating activities	$ 18,282	$ 27,051
Investing activities
Cash paid for acquisitions and other related investments	(115,000)
Principal received on loans receivable	1,469	2,090
Investments in loans receivable	(2,385)	(800)
Construction in progress and other	(27,925)	(13,526)
Net cash provided by (used in) investing activities	(143,841)	(12,236)
Financing activities
Revolving credit facilities, net	50,000	(125,000)
Payments of term debt	(68)	(64)
Distributions paid	(35,778)	(27,786)
Lease deposits and other obligations to tenants	3,380	3,549
Net payments relating to intercompany financing
Proceeds from sale of common shares, net of offering costs	112,583	172,914
Debt issuance costs paid and other financing activities	(241)	(64)
Net cash provided by (used in) financing activities	129,876	23,549
Increase (decrease) in cash and cash equivalents for period	4,317	38,364
Effect of exchange rate changes	13
Cash and cash equivalents at beginning of period	45,979	37,311
Cash and cash equivalents at end of period	50,309	75,675
Parent [Member]
Operating activities
Net cash provided by (used in) operating activities	234	213
Investing activities
Cash paid for acquisitions and other related investments
Principal received on loans receivable
Investments in loans receivable
Construction in progress and other
Net cash provided by (used in) investing activities
Financing activities
Revolving credit facilities, net
Payments of term debt
Distributions paid	(35,717)	(27,719)
Lease deposits and other obligations to tenants
Net payments relating to intercompany financing	(77,100)	(145,408)
Proceeds from sale of common shares, net of offering costs	112,583	172,914
Debt issuance costs paid and other financing activities
Net cash provided by (used in) financing activities	(234)	(213)
Increase (decrease) in cash and cash equivalents for period
Effect of exchange rate changes
Cash and cash equivalents at beginning of period
Cash and cash equivalents at end of period
Subsidiary Issuers [Member]
Operating activities
Net cash provided by (used in) operating activities	(23,272)	(9,099)
Investing activities
Cash paid for acquisitions and other related investments
Principal received on loans receivable
Investments in loans receivable
Construction in progress and other	205	331
Net cash provided by (used in) investing activities	205	331
Financing activities
Revolving credit facilities, net	50,000	(125,000)
Payments of term debt
Distributions paid	(35,778)	(27,786)
Lease deposits and other obligations to tenants
Net payments relating to intercompany financing	(91,208)	27,048
Proceeds from sale of common shares, net of offering costs	112,583	172,914
Debt issuance costs paid and other financing activities	(241)	(64)
Net cash provided by (used in) financing activities	35,356	47,112
Increase (decrease) in cash and cash equivalents for period	12,289	38,344
Effect of exchange rate changes
Cash and cash equivalents at beginning of period	18,815	35,483
Cash and cash equivalents at end of period	31,104	73,827
Subsidiary Guarantors [Member]
Operating activities
Net cash provided by (used in) operating activities	43,606	36,434
Investing activities
Cash paid for acquisitions and other related investments	(115,000)
Principal received on loans receivable
Investments in loans receivable
Construction in progress and other	(27,303)	(13,245)
Net cash provided by (used in) investing activities	(142,303)	(13,245)
Financing activities
Revolving credit facilities, net
Payments of term debt
Distributions paid
Lease deposits and other obligations to tenants	1,970	921
Net payments relating to intercompany financing	88,184	(24,109)
Proceeds from sale of common shares, net of offering costs
Debt issuance costs paid and other financing activities
Net cash provided by (used in) financing activities	90,154	(23,188)
Increase (decrease) in cash and cash equivalents for period	(8,543)	1
Effect of exchange rate changes	13
Cash and cash equivalents at beginning of period	27,094	1,565
Cash and cash equivalents at end of period	18,564	1,566
Non-Guarantor Subsidiaries [Member]
Operating activities
Net cash provided by (used in) operating activities	(2,286)	(497)
Investing activities
Cash paid for acquisitions and other related investments
Principal received on loans receivable	1,469	2,090
Investments in loans receivable	(2,385)	(800)
Construction in progress and other	(827)	(612)
Net cash provided by (used in) investing activities	(1,743)	678
Financing activities
Revolving credit facilities, net
Payments of term debt	(68)	(64)
Distributions paid
Lease deposits and other obligations to tenants	1,410	2,628
Net payments relating to intercompany financing	3,258	(2,726)
Proceeds from sale of common shares, net of offering costs
Debt issuance costs paid and other financing activities
Net cash provided by (used in) financing activities	4,600	(162)
Increase (decrease) in cash and cash equivalents for period	571	19
Effect of exchange rate changes
Cash and cash equivalents at beginning of period	70	263
Cash and cash equivalents at end of period	641	282
Eliminations [Member]
Operating activities
Net cash provided by (used in) operating activities
Investing activities
Cash paid for acquisitions and other related investments
Principal received on loans receivable
Investments in loans receivable
Construction in progress and other
Net cash provided by (used in) investing activities
Financing activities
Revolving credit facilities, net
Payments of term debt
Distributions paid	35,717	27,719
Lease deposits and other obligations to tenants
Net payments relating to intercompany financing	76,866	145,195
Proceeds from sale of common shares, net of offering costs	(112,583)	(172,914)
Debt issuance costs paid and other financing activities
Net cash provided by (used in) financing activities
Increase (decrease) in cash and cash equivalents for period
Effect of exchange rate changes
Cash and cash equivalents at beginning of period
Cash and cash equivalents at end of period