SHARE BASED COMPENSATION (Summary of Share Option Activity) (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Number of Common Shares
Balance at January 1	133,779
Granted	21,238
Exercised	(44,067)	(39,787)	(13,834)
Forfeited or expired	(2,447)
Balance at December 31	108,503	133,779
Exercisable, Common Shares	68,672
Weighted Average Exercise Share Price
Balance at January 1	$ 19.68
Granted	27.46
Exercised	16.25
Forfeited or expired	25.96
Balance at December 31	22.46	$ 19.68
Exercisable Weighted Average Exercise Price	20.04
Weighted average fair value of options granted during the year	$ 7.75	$ 7.63	$ 8.05
Weighted Average Contractual Remaining Life(Years)
Balance at end of period	3 years 7 months 6 days
Exercisable at end of period	2 years 4 months 24 days
Balance at January 1	$ 974
Exercised	583
Balance at December 31	1,902	$ 974
Exercisable, Intrinsic Value	$ 1,370