Quarterly Financial Information (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 1,599,412	$ 1,689,619	$ 1,630,521	$ 1,465,480	$ 1,562,627	$ 1,583,886	$ 1,570,008	$ 1,393,778	$ 6,385,032	$ 6,110,299	$ 5,978,861
Gross margin	304,374	318,758	305,599	279,647	299,416	302,958	293,345	259,026	1,208,378	1,154,745	1,118,547
Net income attributable to the Company	$ 22,270	$ 30,129	$ 25,635	$ 15,045	$ 25,209	$ 28,311	$ 25,088	$ 12,460	$ 93,079	$ 91,068	$ 87,428
Net income attributable to the Company per share of common stock (usd per share)	$ 1.28	$ 1.73	$ 1.47	$ 0.87	$ 1.47	$ 1.65	$ 1.46	$ 0.72	$ 5.35	$ 5.30	$ 5.13
Common stock dividend declared, percent									5.00%	2.50%	0.00%
Average common shares outstanding by quarter	16,558,984	16,573,041	16,569,408	16,537,536	15,927,663	15,942,178	15,986,695	16,023,053	17,385,952	17,182,663	17,056,076