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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments.

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Income tax reconciliation impact of loss of real estate investment trust qualification.

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Income Taxes - Income Tax Expense (Benefit) at Company's Effective Tax Rate (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended									6 Months Ended		12 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Income (loss) before income taxes	$ (51,926)	$ 6,905	$ 120,818	$ 238,571	$ 46,524	$ (55,061)	$ 10,575	$ 775	$ 8,260	$ (22,961)	$ 285,095	$ 412,818	$ (35,451)	$ (6,133)
Tax provision at statutory tax rate of 35%												144,486	(12,408)	(2,147)
Effect of:
Impact of loss of REIT qualification														62,660
State and local income tax												12,828	(1,266)	(1,311)
Permanent acquisition costs													610
Contingent purchase price												1,680
Other												357	(253)	1,062
Total income tax expense (benefit)	$ (38,997)us-gaap_IncomeTaxExpenseBenefit	$ (2,892)us-gaap_IncomeTaxExpenseBenefit	$ 48,129us-gaap_IncomeTaxExpenseBenefit	$ 95,339us-gaap_IncomeTaxExpenseBenefit	$ 18,775us-gaap_IncomeTaxExpenseBenefit	$ (20,953)us-gaap_IncomeTaxExpenseBenefit	$ 4,164us-gaap_IncomeTaxExpenseBenefit	$ 347us-gaap_IncomeTaxExpenseBenefit	$ 3,125us-gaap_IncomeTaxExpenseBenefit	$ (27,409)us-gaap_IncomeTaxExpenseBenefit	$ 114,114us-gaap_IncomeTaxExpenseBenefit	$ 159,351us-gaap_IncomeTaxExpenseBenefit	$ (13,317)us-gaap_IncomeTaxExpenseBenefit	$ 60,264us-gaap_IncomeTaxExpenseBenefit