XML 23 R37.htm IDEA: XBRL DOCUMENT

Fair Value Measurements - Fair Values and Related Carrying Values of Debt (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Debt Instrument Fair Value Carrying Value [Abstract]
Carrying value	$ 283,736us-gaap_LongTermDebt	$ 273,931us-gaap_LongTermDebt
Level 2 [Member]
Debt Instrument Fair Value Carrying Value [Abstract]
Fair value	$ 298,655	$ 285,441

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