Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating Activities:
Net income	$ 117,795	$ 130,006	$ 108,292
Adjustments to reconcile net income to net cash provided (used) by operating activities:
Depreciation and amortization	20,575	19,435	17,942
Recognition of cumulative translation adjustment upon liquidation of foreign subsidiary	2,058	0	0
Extinguishment of debt	0	0	15,020
Deferred income tax expense	8,833	9,668	(936)
Share-based payments	27,061	22,350	19,240
Net pension benefit	(688)	(1,160)	(2,804)
Inventory writedowns and bad debt provisions	10,383	10,325	7,185
Amortization of debt discount	3,564	7,361	11,489
Excess tax benefits from share-based payments	(3,625)	(3,521)	(2,792)
Other	2,491	956	1,407
Changes in assets and liabilities:
Accounts receivable	(178,335)	(194,665)	(45,581)
Due to consignors	79,180	299,512	(184,067)
Inventory	(59,475)	(83,237)	12,513
Prepaid expenses and other current assets	(9,559)	(2,668)	(5,671)
Other long-term assets	5,372	(21,066)	(42,619)
Income tax receivable and deferred income tax assets	7,168	6,476	(4,824)
Accrued income taxes and deferred income tax liabilities	(9,309)	2,770	(4,395)
Accounts payable and accrued liabilities and other liabilities	20,776	34,885	35,221
Net cash provided (used) by operating activities	44,265	237,427	(65,380)
Investing Activities:
Funding of notes receivable	(592,022)	(378,650)	(352,810)
Collections of notes receivable	476,522	308,428	154,111
Capital expenditures	(10,868)	(23,467)	(19,689)
Proceeds from the sale of land and buildings	0	0	714
Distributions from equity investees	2,160	65	100
(Increase) decrease in restricted cash	(4,655)	1,300	(3,148)
Proceeds from the sale of equity method investment	300	1,225	0
Net cash used by investing activities	(128,563)	(91,099)	(220,722)
Financing Activities:
Proceeds from the issuance of 2022 Senior Notes	0	0	300,000
Debt issuance and other borrowing costs	(5,394)	0	(6,286)
Repayment of 2015 Senior Notes	0	0	(93,853)
Repayment of Convertible Notes	0	(197,371)	0
Proceeds from the settlement of Convertible Note Hedges	0	15,503	0
Repayments of York Property Mortgage	(3,614)	(3,162)	(3,215)
Proceeds from credit facility borrowings	507,500	0	0
Repayments of credit facility borrowings	(62,500)	0	0
Repurchase of common stock	(25,000)	0	0
Dividends paid	(331,535)	(13,754)	(35,223)
Proceeds from exercise of employee stock options	967	4,049	966
Excess tax benefits from share-based payments	3,625	3,521	2,792
Funding of employee tax obligations upon the vesting of share-based payments	(11,848)	(11,399)	(11,379)
Contribution from noncontrolling interest	0	322	0
Net cash provided (used) by financing activities	72,201	(202,291)	153,802
Effect of exchange rate changes on cash and cash equivalents	(15,389)	8,931	10,014
Decrease in cash and cash equivalents	(27,486)	(47,032)	(122,286)
Cash and cash equivalents at beginning of period	721,315	768,347	890,633
Cash and cash equivalents at end of period	$ 693,829	$ 721,315	$ 768,347