XML 57 R41.htm IDEA: XBRL DOCUMENT

Long-term Debt - Additional Information (Detail) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Debt Instrument [Line Items]
Total debt outstanding	$ 9,200,000	$ 9,600,000
Debt instrument interest rate	1.53%
Current portion of long-term debt	$ 1,600,000	$ 1,600,000
LIBOR
Debt Instrument [Line Items]
Debt instrument variable rate	1.25%

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References+ Details