EQUITY - PSUs, RSUs and Restricted Stock (Details) - $ / shares		9 Months Ended
	Jan. 04, 2016	Sep. 30, 2016
Shares
Exercised (in shares)		(13,939)
Weighted Average Exercise Price
Exercised (in dollars per share)		$ 23.25
PSUs
Shares
Outstanding at the beginning of the period (in shares)		6,929
Granted (in shares)	16,000	16,000
Cancelled, expired or forfeited (in shares)		(3,466)
Outstanding at the end of the period (in shares)		19,463
Weighted Average Grant Date Fair Value
Outstanding at the beginning of the period (in dollars per share)		$ 65.78
Granted (in dollars per share)	$ 41.22	41.22
Cancelled, expired or forfeited (in dollars per share)		48.77
Outstanding at the end of the period (in dollars per share)		$ 48.62
Restricted stock
Stock-Based Compensation Plans
Issuance of restricted stock from treasury stock (in shares)		10,412
Average cost (in dollars per share)		$ 39.82
Shares
Outstanding at the beginning of the period (in shares)		59,413
Granted (in shares)		34,300
Vested (in shares)		(32,279)
Cancelled, expired or forfeited (in shares)		(6,233)
Outstanding at the end of the period (in shares)		55,201
Weighted Average Grant Date Fair Value
Outstanding at the beginning of the period (in dollars per share)		$ 42.67
Granted (in dollars per share)		37.90
Vested (in dollars per share)		37.83
Cancelled, expired or forfeited (in dollars per share)		40.51
Outstanding at the end of the period (in dollars per share)		$ 42.78
RSUs
Shares
Granted (in shares)		20,830
Cancelled, expired or forfeited (in shares)		(260)
Outstanding at the end of the period (in shares)		20,570
Weighted Average Grant Date Fair Value
Granted (in dollars per share)		$ 39.10
Cancelled, expired or forfeited (in dollars per share)		39.10
Outstanding at the end of the period (in dollars per share)		$ 39.10
Stock options
Shares
Outstanding at the beginning of the period (in shares)		336,417
Granted (in shares)		147,660
Exercised (in shares)		(13,939)
Cancelled, expired or forfeited (in shares)		(22,730)
Outstanding at the end of the period (in shares)		447,408
Exercisable at the end of the period (in shares)		153,535
Weighted Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)		$ 35.83
Granted (in dollars per share)		37.83
Exercised (in dollars per share)		23.25
Cancelled, expired or forfeited (in dollars per share)		43.44
Outstanding at the end of the period (in dollars per share)		36.50
Exercisable at the end of the period (in dollars per share)		$ 33.33