INTEREST EXPENSE (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
INTEREST EXPENSE.      
Interest on loans $ 19,091 $ 20,017 $ 18,371
Accrued interest on unrecognized tax benefits 68 576 457
Amortization of debt issuance costs 175 191 19
Interest to original shareholders of acquired subsidiaries 240 1,126 2,503
Interest on loans from third parties 1,683 4,757 2,567
Bank charges 1,067 1,340 672
Others 244 63 168
Total $ 22,568 $ 28,070 $ 24,757