CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME      
Share-based compensation expense $ 211 $ 166 $ 10,479
Income tax expense, discontinued operations 0 399 101
Income tax expense, gain on disposal of discontinued operations 0 959 0
Foreign currency translation adjustments, income tax expense 0 0 0
Defined benefit pension plans, income tax expense $ 0 $ 0 $ 0
Number of ordinary shares represented by each ADS 3 3 3