Annual report pursuant to Section 13 and 15(d)

Selected Balance Sheet Data - Additional Information (Detail)

v2.4.0.8
Selected Balance Sheet Data - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
0 Months Ended 12 Months Ended
Mar. 31, 2013
Dec. 31, 2013
Balance Sheet Related Disclosures [Abstract]    
SARs frozen liability amount $ 20,000 $ 19,970
SARs Liability frozen value date Mar. 31, 2013  
SARs Liability interest accrual commencement date   Jan. 01, 2014
Deferred compensation plam establishment date   Mar. 31, 2001
Fair value of deferred compensation plan assets   110.00%