Organization and Summary of Significant Accounting Policies (Details)	12 Months Ended
	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Business Acquisition [Line Items]
Gains (losses) on foreign currency transactions	$ (1,347,000)	$ (560,000)	$ 171,000
Number of sales centers in North America, Europe and Australia	373
Number of distribution networks	4
Advertising expense	$ 7,842,000	7,390,000	7,477,000
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax		1,400,000	1,900,000
Threshold past due account balances for reserve analysis	$ 20,000
Threshold past due days for reserve analysis	60
Sales period (in months) for establishing reserve for inventory obsolescence	12
Depreciation expense	$ 27,885,000	26,122,000	24,157,000
Cumulative Share Repurchases	1,450,000,000.0
Cumulative Dividends	578,900,000
Cash paid during the year for [Abstract]
Income taxes, net of refunds	51,076,000	50,091,000	84,251,000
Interest Paid, Excluding Capitalized Interest, Operating Activities	20,960,000	17,796,000	12,957,000
COLOMBIA
Business Acquisition [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	$ 900,000
PSL [Member] | Initial Ownership Percentage [Member]
Business Acquisition [Line Items]
Controlling interest by parent	60.00%
Shipping and Handling Costs
Business Acquisition [Line Items]
Shipping and handling costs associated with outbound freight	$ 51,580,000	48,610,000	45,247,000
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Shipping and handling costs associated with outbound freight	$ 51,580,000	$ 48,610,000	$ 45,247,000