EARNINGS PER SHARE - Summary of Number of Shares Outstanding for Calculation of Earnings Per Share (EPS) (Details) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2013	Apr. 01, 2012
Earnings Per Share [Abstract]
Weighted-average shares outstanding - basic	29,358	29,117

Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).

No definition available.

Name:	us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration