Restated Consolidated Statement of Cash Flows (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended				12 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Dec. 31, 2013
Cash flows from operating activities:
Net loss	$ (362,438)	[1]	$ (218,212)	[1]
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Issuance of OP Units	92,884	[1]	107,771	[1]
Depreciation and amortization	473,184	[1]	64,780	[1]
Gain on disposition of properties	18,874	[1]	0	[1]
Equity-based compensation	27,264	[1]	6,791	[1]
Equity in income of unconsolidated entities	385	[1]	0	[1]
Distributions from unconsolidated entities	4,033	[1],[2]	0	[1],[2]
Net direct financing lease adjustments	0	[2]	0	[2]
Loss on derivative instruments	(7,086)	[1]	45	[1]
Gain on sale of investments, net	0	[1]	(451)	[1]
Impairment of real estate	1,556	[1],[3]	0	[1],[3]
Gain on extinguishment of debt	(16,985)	[1]	0	[1]
Unrealized loss on contingent value rights obligations, net of settlement payments	0	[1]	31,134	[1]
Changes in assets and liabilities:
Investment in direct financing leases	525	[1]	0	[1]
Deferred costs and other assets, net	(93,553)	[1]	(10,263)	[1]
Due from affiliates	(5,685)	[1]	0	[1]
Accounts payable and accrued expenses	(51,771)	[1]	4,160	[1]
Deferred rent, derivative and other liabilities	(8,732)	[1]	2,676	[1]
Due to affiliates	(41,262)	[1]	1,349	[1]
Net cash provided by (used in) operating activities	31,193	[1]	(10,220)	[1]
Cash flows from investing activities:
Investments in real estate and other assets	(1,246,588)	[1]	(2,129,677)	[1]
Acquisition of a real estate business, net of cash acquired	(756,232)	[1]	0	[1]
Investment in direct financing leases	0	[1]	(76,410)	[1]
Capital expenditures	(9,989)	[1]	(30)	[1]
Real estate developments	(21,733)	[1]	0	[1]
Distributions from unconsolidated entities	0	[2]	0	[2]
Principal repayments received from borrowers	4,155	[1]	0	[1]
Investments in unconsolidated entities	(2,500)	[1]	0	[1]
Return of investment from unconsolidated entities	0		0
Proceeds from disposition of properties	94,823	[1]	0	[1]
Investment in intangible assets	(266)	[1]	0	[1]
Investment in other assets	0		0
Deposits for real estate investments	(129,602)	[1]	(47,086)	[1]
Uses and refunds of deposits for real estate investments	196,075	[1]	0	[1]
Purchases of investment securities	0	[1]	(81,460)	[1]
Line of credit advances to affiliates	(80,300)	[1]	0	[1]
Line of credit repayments from affiliates	15,600	[1]	0	[1]
Proceeds from sale of investment securities	0	[1]	44,188	[1]
Change in restricted cash	(15,499)	[1]	0	[1]
Net cash used in investing activities	(1,952,056)	[1]	(2,290,475)	[1]
Cash flows from financing activities:
Proceeds from mortgage notes payable	718,275	[1]	6,924	[1]
Payments on mortgage notes payable	(876,874)	[1]	0	[1]
Payments on other debt	(7,524)	[1]	0	[1]
Proceeds from credit facilities	3,246,000	[1]	825,000	[1]
Payments on credit facilities	(4,628,800)	[1]	(349,604)	[1]
Proceeds from corporate bonds	2,545,760	[1]	0	[1]
Payments of deferred financing costs	(84,165)	[1]	(41,461)	[1]
Common stock repurchases	0	[1]	(350,396)	[1]
Proceeds from issuances of preferred shares	0	[1]	445,000	[1]
Proceeds from issuances of common stock, net offering costs	1,593,462	[1]	1,810,042	[1]
Consideration to Former Manager for internalization	0	[1]	0	[1]
Contributions from non-controlling interest holders	982	[1]	29,758	[1]
Distributions to non-controlling interest holders	(15,831)	[1]	(3,111)	[1]
Distributions paid	(427,618)	[1]	(90,740)	[1]
Change in restricted cash	0	[1]	(844)	[1]
Net cash provided by financing activities	2,063,667	[1]	2,280,568	[1]
Net change in cash and cash equivalents	142,804	[1]	(20,127)	[1]
Cash and cash equivalents, beginning of period	52,725	[1]	292,575	[1]	292,575	[1]
Cash and cash equivalents, end of period	195,529	[1]	272,448	[1]
Adjustments [Member]
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Equity-based compensation	27,264		6,791
Gain on extinguishment of debt	(16,985)		0
Cash flows from financing activities:
Cash and cash equivalents, beginning of period	52,725		292,575		292,575
Cash and cash equivalents, end of period	195,529		272,448
As Previously Reported [Member]
Cash flows from operating activities:
Net loss	(363,920)		(214,028)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Issuance of OP Units	153,885		108,247
Depreciation and amortization	452,446		64,243
Gain on disposition of properties	(4,489)		(14)
Equity in income of unconsolidated entities	385		0
Distributions from unconsolidated entities	0	[2]	0	[2]
Net direct financing lease adjustments	0	[2]	0	[2]
Loss on derivative instruments	8,048		45
Gain on sale of investments, net	0		(451)
Impairment of real estate	0	[3]	0	[3]
Unrealized loss on contingent value rights obligations, net of settlement payments	0		31,134
Changes in assets and liabilities:
Investment in direct financing leases	525		0
Deferred costs and other assets, net	(62,175)		(10,300)
Due from affiliates	(5,335)		0
Accounts payable and accrued expenses	(133,960)		4,554
Deferred rent, derivative and other liabilities	(35,298)		2,676
Due to affiliates	223		0
Net cash provided by (used in) operating activities	33,785		(7,177)
Cash flows from investing activities:
Investments in real estate and other assets	(1,246,588)		(2,129,677)
Acquisition of a real estate business, net of cash acquired	(755,701)		0
Investment in direct financing leases	0		(76,410)
Capital expenditures	(46,649)		(30)
Real estate developments	0		0
Distributions from unconsolidated entities	4,033	[2]	0	[2]
Principal repayments received from borrowers	4,155		0
Investments in unconsolidated entities	(2,500)		0
Return of investment from unconsolidated entities	0		0
Proceeds from disposition of properties	95,321		0
Investment in intangible assets	(266)		0
Investment in other assets	0		(1,041)
Deposits for real estate investments	(129,602)		(47,086)
Uses and refunds of deposits for real estate investments	196,075		0
Purchases of investment securities	0		(81,460)
Line of credit advances to affiliates	(80,300)		0
Line of credit repayments from affiliates	15,600		0
Proceeds from sale of investment securities	0		44,188
Change in restricted cash	0
Net cash used in investing activities	(1,946,422)		(2,291,516)
Cash flows from financing activities:
Proceeds from mortgage notes payable	718,275		6,924
Payments on mortgage notes payable	(876,874)		0
Payments on other debt	(7,524)		0
Proceeds from credit facilities	3,246,000		825,000
Payments on credit facilities	(4,628,800)		(349,604)
Proceeds from corporate bonds	2,545,760		0
Payments of deferred financing costs	(80,515)		(40,488)
Common stock repurchases	0		(350,396)
Proceeds from issuances of preferred shares	0		445,000
Proceeds from issuances of common stock, net offering costs	1,595,735		1,810,116
Consideration to Former Manager for internalization	0		(3,035)
Contributions from non-controlling interest holders	1,043		29,758
Distributions to non-controlling interest holders	(16,418)		(3,111)
Distributions paid	(427,541)		(90,740)
Change in restricted cash	(15,539)		(844)
Net cash provided by financing activities	2,053,602		2,278,580
Net change in cash and cash equivalents	140,965		(20,113)
Cash and cash equivalents, beginning of period	52,725	[4]
Cash and cash equivalents, end of period	193,690		10,958
As Previously Reported [Member] | Adjustments [Member]
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Equity-based compensation	31,848		6,717
Gain on extinguishment of debt	(8,398)		0
Cash flows from financing activities:
Cash and cash equivalents, beginning of period	52,725		292,575		292,575
Cash and cash equivalents, end of period	193,690		272,462
Reclassifications And Immaterial Adjustments [Member]
Cash flows from operating activities:
Net loss	0		0
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Issuance of OP Units	0		0
Depreciation and amortization	0		0
Gain on disposition of properties	0		0
Equity in income of unconsolidated entities	0		0
Distributions from unconsolidated entities	0	[2]	0	[2]
Net direct financing lease adjustments	0	[2]	0	[2]
Loss on derivative instruments	0		0
Gain on sale of investments, net	0		0
Impairment of real estate	0	[3]	0	[3]
Unrealized loss on contingent value rights obligations, net of settlement payments	0		0
Changes in assets and liabilities:
Investment in direct financing leases	0		0
Deferred costs and other assets, net	0		0
Due from affiliates	0		0
Accounts payable and accrued expenses	0		0
Deferred rent, derivative and other liabilities	0		0
Due to affiliates	0		0
Net cash provided by (used in) operating activities	0		0
Cash flows from investing activities:
Investments in real estate and other assets	0		0
Acquisition of a real estate business, net of cash acquired	0		0
Investment in direct financing leases	0		0
Capital expenditures	21,733		0
Real estate developments	(21,733)		0
Distributions from unconsolidated entities	0	[2]	0	[2]
Principal repayments received from borrowers	0		0
Investments in unconsolidated entities	0		0
Return of investment from unconsolidated entities	0		0
Proceeds from disposition of properties	0		0
Investment in intangible assets	0		0
Investment in other assets	0		0
Deposits for real estate investments	0		0
Uses and refunds of deposits for real estate investments	0		0
Purchases of investment securities	0		0
Line of credit advances to affiliates	0		0
Line of credit repayments from affiliates	0		0
Proceeds from sale of investment securities	0		0
Change in restricted cash	0
Net cash used in investing activities	0		0
Cash flows from financing activities:
Proceeds from mortgage notes payable	0		0
Payments on mortgage notes payable	0		0
Payments on other debt	0		0
Proceeds from credit facilities	0		0
Payments on credit facilities	0		0
Proceeds from corporate bonds	0		0
Payments of deferred financing costs	0		0
Common stock repurchases	0		0
Proceeds from issuances of preferred shares	0		0
Proceeds from issuances of common stock, net offering costs	0		0
Consideration to Former Manager for internalization	0		0
Contributions from non-controlling interest holders	0		0
Distributions to non-controlling interest holders	0		0
Distributions paid	0		0
Change in restricted cash	0		0
Net cash provided by financing activities	0		0
Net change in cash and cash equivalents	0		0
Cash and cash equivalents, beginning of period	0
Cash and cash equivalents, end of period	0		0
Reclassifications And Immaterial Adjustments [Member] | Adjustments [Member]
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Equity-based compensation	0		0
Gain on extinguishment of debt	0		0
Cash flows from financing activities:
Cash and cash equivalents, beginning of period	0		0		0
Cash and cash equivalents, end of period	0		0
Error Corrections [Member]
Cash flows from operating activities:
Net loss	1,482		(4,184)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Issuance of OP Units	(61,001)		(476)
Depreciation and amortization	20,738		537
Gain on disposition of properties	23,363		14
Equity-based compensation			(4,339)
Equity in income of unconsolidated entities	0		0
Distributions from unconsolidated entities	4,033	[2]	0	[2]
Net direct financing lease adjustments	0	[2]	0	[2]
Loss on derivative instruments	(15,134)		0
Gain on sale of investments, net	0		0
Impairment of real estate	1,556	[3]	0	[3]	3,300
Unrealized loss on contingent value rights obligations, net of settlement payments	0		0
Changes in assets and liabilities:
Investment in direct financing leases	0		0
Deferred costs and other assets, net	(31,378)		37
Due from affiliates	(350)		0
Accounts payable and accrued expenses	82,189		(394)
Deferred rent, derivative and other liabilities	26,566		0
Due to affiliates	(41,485)		1,349
Net cash provided by (used in) operating activities	(2,592)		(3,043)
Cash flows from investing activities:
Investments in real estate and other assets	0		0
Acquisition of a real estate business, net of cash acquired	(531)		0
Investment in direct financing leases	0		0
Capital expenditures	14,927		0
Real estate developments	0		0
Distributions from unconsolidated entities	(4,033)	[2]	0	[2]
Principal repayments received from borrowers	0		0
Investments in unconsolidated entities	0		0
Return of investment from unconsolidated entities	0		0
Proceeds from disposition of properties	(498)		0
Investment in intangible assets	0		0
Investment in other assets	0		1,041
Deposits for real estate investments	0		0
Uses and refunds of deposits for real estate investments	0		0
Purchases of investment securities	0		0
Line of credit advances to affiliates	0		0
Line of credit repayments from affiliates	0		0
Proceeds from sale of investment securities	0		0
Change in restricted cash	(15,499)
Net cash used in investing activities	(5,634)		1,041
Cash flows from financing activities:
Proceeds from mortgage notes payable	0		0
Payments on mortgage notes payable	0		0
Payments on other debt	0		0
Proceeds from credit facilities	0		0
Payments on credit facilities	0		0
Proceeds from corporate bonds	0		0
Payments of deferred financing costs	(3,650)		(973)
Common stock repurchases	0		0
Proceeds from issuances of preferred shares	0		0
Proceeds from issuances of common stock, net offering costs	(2,273)		(74)
Consideration to Former Manager for internalization	0		3,035
Contributions from non-controlling interest holders	(61)		0
Distributions to non-controlling interest holders	587		0
Distributions paid	(77)		0
Change in restricted cash	15,539		0
Net cash provided by financing activities	10,065		1,988
Net change in cash and cash equivalents	1,839		(14)
Cash and cash equivalents, beginning of period	0
Cash and cash equivalents, end of period	1,839		0		0
Error Corrections [Member] | Adjustments [Member]
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Equity-based compensation	(4,584)		74
Gain on extinguishment of debt	(8,587)		0
Cash flows from financing activities:
Cash and cash equivalents, beginning of period	0
Cash and cash equivalents, end of period	$ 1,839		$ (14)

[1] For discussion on the restatement adjustments, see Note 2 - Restatement of Previously Issued Financial Statements.

[2] This line item caption has been added and is included in the accompanying consolidated statements of cash flows for the period ended June 30, 2014.

[3] This line item caption has been added and is included in the accompanying consolidated statements of operations for the period ended June 30, 2014.

[4] This line item caption has been reclassified and included within deferred costs and other assets, net in the accompanying consolidated balance sheets for the period ended June 30, 2014.