Goodwill and Intangibles - Summary of Change in Carrying Amount of Goodwill (Detail) (USD $)
In Thousands, unless otherwise specified |
Jun. 30, 2014
|
Dec. 31, 2013
|
---|---|---|
Goodwill [Line Items] | ||
Goodwill | $ 120,534 | $ 119,332 |
Accumulated impairment losses | (70,004) | (70,004) |
Net Goodwill | 50,530 | 49,328 |
U.S. Insulation [Member]
|
||
Goodwill [Line Items] | ||
Goodwill | 1,202 | |
Accumulated impairment losses | ||
Net Goodwill | $ 1,202 |