Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 265,021	$ 240,196	$ 132,333
Adjustments to reconcile net income to net cash provided by operating activities:
Loss on early extinguishment of debt	5,712	1,343	19,855
Depreciation and amortization expense	51,814	49,257	46,790
Amortization of debt costs	2,507	2,439	2,756
Provision for inventory losses	18,386	13,067	18,745
Increase in receivables	(16,678)	(18,756)	(13,300)
Increase in inventory	(69,599)	(77,881)	(56,919)
(Increase) decrease in prepaids and other current assets	(9,338)	3,959	(2,783)
Increase in accounts payable	6,628	651	23,243
(Decrease) increase in deferred revenue and other current liabilities	(18,496)	16,395	4,934
Other operating activities	2,147	(9,454)	(980)
Net cash provided by operating activities	238,104	221,216	174,674
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(50,247)	(41,930)	(43,817)
Cash paid for acquisitions (net of cash acquired)	(27,562)		(19,840)
Other investing activities	(1,606)	(1,884)	(1,887)
Net cash used in investing activities	(79,415)	(43,814)	(65,544)
CASH FLOWS FROM FINANCING ACTIVITIES:
Dividends paid to shareholders	(57,437)	(45,216)
Payments on long-term debt	(3,379)	(2,689)	(1,355,973)
Proceeds from exercised stock options	14,588	25,972	28,550
Tax benefit from exercise of stock options	17,852	39,834	22,409
Repurchase of treasury stock	(310,582)	(359,990)	(61,634)
Repurchase of Series A preferred stock			(223,107)
Net proceeds from sale of Class A common stock			237,253
Proceeds from issuance of long-term debt	249,552	199,000	1,196,200
Deferred financing fees	(2,397)	(1,335)	(17,346)
Other financing activities		(2,500)
Net cash used in financing activities	(91,803)	(146,924)	(173,648)
Effect of exchange rate on cash and cash equivalents	790	(375)	(946)
Net increase (decrease) in cash and cash equivalents	67,676	30,103	(65,464)
Beginning balance, cash and cash equivalents	158,541	128,438	193,902
Ending balance, cash and cash equivalents	226,217	158,541	128,438
Supplemental Cash Flow Information
Income taxes paid	143,573	102,335	51,088
Interest paid	$ 40,696	$ 45,088	$ 64,122