INCOME TAXES: (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Domestic and foreign components of pretax income
Domestic	$ 82,276	$ 81,255	$ 73,362
Foreign	10,302	10,039	11,121
Earnings before income taxes	92,578	91,294	84,483
Current:
Federal	26,259	25,173	16,192
Foreign	(596)	549	219
State	785	1,538	891
Total current	26,448	27,260	17,302
Deferred:
Federal	(1,189)	(172)	4,286
Foreign	2,106	2,032	1,823
State	(914)	(686)	223
Total deferred	3	1,174	6,332
Total provision for income taxes	26,451	28,434	$ 23,634
Deferred tax assets:
Accrued customer promotions	3,907	3,219
Deferred compensation	23,842	28,099
Postretirement benefits	4,543	4,895
Other accrued expenses	8,324	7,660
Foreign subsidiary tax loss carry forward	9,956	12,972
Tax credit carry forward	2,319	1,530
Deferred tax assets, gross	52,891	58,375
Valuation allowance	(2,077)	(2,478)
Total deferred tax assets	50,814	55,897
Deferred tax liabilities:
Depreciation	29,062	31,520
Deductible goodwill and trademarks	44,255	43,960
Accrued export company commissions	5,897	5,555
Employee benefit plans	2,403	3,907
Inventory reserves	3,793	3,422
Prepaid insurance	1,065	867
Unrealized capital gain	362	2,364
Deferred gain on sale of real estate	8,154	8,168
Total deferred tax liabilities	94,991	99,763
Net deferred tax liability	44,177	$ 43,866
Benefits related to foreign subsidiary tax credit carryforwards	289
Benefits related to state tax credit carryforwards	$ 2,030