Summary of Capital Expenditures Including Accrued Amounts for Reportable Segments (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Segment Reporting Information [Line Items]
Total capital expenditures	$ 27,284	$ 10,803
Discontinued operations
Segment Reporting Information [Line Items]
Total capital expenditures		286
Owned and managed
Segment Reporting Information [Line Items]
Total capital expenditures	25,620	8,319
Managed-only
Segment Reporting Information [Line Items]
Total capital expenditures	632	668
Corporate and Other
Segment Reporting Information [Line Items]
Total capital expenditures	$ 1,032	$ 1,530