TREASURY STOCK - Narrative (Details) - USD ($)	3 Months Ended		13 Months Ended	23 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Mar. 31, 2016	May 19, 2015	Apr. 22, 2014
Equity, Class of Treasury Stock [Line Items]
Shares repurchased during the period, value	$ 50,068,000	$ 3,167,000
Share Repurchase Program, April 2014
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount up to						$ 100,000,000
Shares repurchased during the period (in shares)		67,752		824,452
Shares repurchased during the period, value		$ 2,800,000		$ 34,300,000
Stock remaining to be purchased (in shares)	0		0
Share Repurchase Program, May 2015
Equity, Class of Treasury Stock [Line Items]
Shares repurchased during the period (in shares)	2,100,382		12,178,518
Shares repurchased during the period, value	$ 50,000,000		$ 350,000,000
Stock remaining to be purchased (in shares)	7,821,482		7,821,482
Stock authorized to repurchase under stock repurchase program (in shares)					20,000,000
Restricted stock units
Equity, Class of Treasury Stock [Line Items]
Shares repurchased during the period (in shares)	2,909
Shares repurchased during the period, value	$ 68,000