Summary of Significant Accounting Policies - Financial Instruments Held at Fair Value (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Financial Liabilities:
Interest rate swap liability	$ 453	$ 767
Fair Value Measurements, Level 1 [Member] | Interest Rate Swap [Member]
Financial Liabilities:
Interest rate swap liability
Fair Value Measurements, Level 1 [Member] | Restricted Deposits [Member]
Financial Assets:
Restricted deposits, held at fair value		146
Fair Value Measurements, Level 2 [Member] | Interest Rate Swap [Member]
Financial Liabilities:
Interest rate swap liability	453	767
Fair Value Measurements, Level 2 [Member] | Restricted Deposits [Member]
Financial Assets:
Restricted deposits, held at fair value
Fair Value Measurements, Level 3 [Member] | Interest Rate Swap [Member]
Financial Liabilities:
Interest rate swap liability
Fair Value Measurements, Level 3 [Member] | Restricted Deposits [Member]
Financial Assets:
Restricted deposits, held at fair value
Carrying Value [Member] | Interest Rate Swap [Member]
Financial Liabilities:
Interest rate swap liability	453	767
Carrying Value [Member] | Restricted Deposits [Member]
Financial Assets:
Restricted deposits, held at fair value		$ 146