Debt - Principal Payments on, and Estimated Amortization on Debt (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Debt Instrument [Line Items]
2014	$ 1,295
2015	19,735
2016	1,375
2017	1,419
2018	1,464
Thereafter	84,109
Total principal payments on debt	109,397
Secured Borrowings Principal [Member]
Debt Instrument [Line Items]
2014	1,139
2015	1,179
2016	1,219
2017	1,263
2018	1,308
Thereafter	31,295
Total principal payments on debt	37,403
Secured Borrowings Deferred Premiums [Member]
Debt Instrument [Line Items]
2014	156
2015	156
2016	156
2017	156
2018	156
Thereafter	2,244
Total principal payments on debt	3,024
All Other Debt [Member]
Debt Instrument [Line Items]
2014
2015	18,400
2016
2017
2018
Thereafter	50,570
Total principal payments on debt	$ 68,970