Correction of Immaterial Errors (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended			6 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2014	Sep. 30, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Receivables, net						$ 65,492	$ 59,178
Rental merchandise on rent, net						960,414	913,476	804,798
Rental merchandise held for rent, net						277,442	210,722	201,621
Total assets						3,271,197	3,018,175	2,859,085
Accounts payable - trade							120,438
Accrued liabilities						351,812	327,090
Deferred income taxes						345,299	318,503
Total liabilities						1,881,802	1,682,306
Retained earnings						1,927,445	1,880,320		1,658,857
Total equity						1,389,395	1,335,869
Rentals and fees	675,342	681,749	691,187	1,372,936	2,048,278	2,745,828	2,695,895	2,653,925
Installment sales	17,822	17,771	18,060	35,831	53,653	75,889	71,475	67,071
Franchise merchandise sales	4,477	3,840	5,328	9,168	13,645	19,236	24,556	32,893
Total revenues	764,363	768,426	828,473	1,596,899	2,361,262	3,157,796	3,094,018	3,075,671
Cost of rentals and fees	174,041	174,600	175,216	349,816	523,857	704,595	676,674	642,387
Cost of installment sales	5,867	6,075	6,086	12,161	18,028	26,084	24,541	23,287
Franchise cost of merchandise sold	4,200	3,614	5,004	8,618	12,818	18,070	23,104	31,314
Total cost of revenues	224,605	231,402	265,923	497,325	721,930	973,433	940,525	938,207
Gross profit	539,758	537,024	562,550	1,099,574	1,639,332	2,184,363	2,153,493	2,137,464
Store labor	218,623	222,269	225,938	448,207	666,830	888,929	881,671	840,377
Other store expenses	208,424	205,768	215,158	420,926	629,350	839,801	789,212	764,770
Operating profit	45,920	40,390	59,458	99,848	145,768	193,462	247,009	313,029
Finance charges from refinancing	0	0	4,213	4,213	4,213	4,213	0	0
Earnings before income taxes	34,139	28,839	44,080	72,919	107,058	142,353	208,196	281,806
Income tax expense	8,214	11,158	16,814	27,972	36,186	45,931	79,439	101,788
Net earnings	25,925	17,681	27,266	44,947	70,872	96,422	128,757	180,018
Basic earnings per common share	$ 0.49	$ 0.33	$ 0.52	$ 0.85	$ 1.34	$ 1.82	$ 2.35	$ 3.06
Diluted earnings per common share	$ 0.49	$ 0.33	$ 0.51	$ 0.84	$ 1.33	$ 1.81	$ 2.33	$ 3.03
Depreciation of rental merchandise			169,489	339,037	508,178	685,115	652,161	620,917
Finance charges			0	0	0
Deferred income taxes			(25,350)	(52,101)	(65,330)	26,796	24,020	3,429
Rental merchandise			(136,199)	(301,721)	(539,350)	(796,672)	(767,680)	(683,803)
Receivables			(2,735)	(7,047)	(20,345)	(21,823)	(19,248)	(13,390)
Prepaid expenses and other assets			(397)	(6,520)	(6,805)	(130,690)	(9,798)	1,772
Accounts payable - trade			3,377	(935)	23,227	21,440	19,373	(3,999)
Accrued liabilities			57,250	(2,454)	5,484	21,505	1,418	14,724
Net cash provided by operating activities			120,060	68,961	63,263	19,113	134,342	217,898
Restatement Adjustment [Member]
Receivables, net							492
Rental merchandise on rent, net							(1,142)
Rental merchandise held for rent, net							272
Total assets							(378)
Accounts payable - trade							272
Accrued liabilities							11,855
Deferred income taxes							(4,823)
Total liabilities							7,304
Retained earnings							(7,682)		(6,516)
Total equity							(7,682)
Rentals and fees	(2,848)	(2,385)	(2,981)	(5,366)	(8,214)		(2,500)	(156)
Installment sales	(267)	(283)	(296)	(579)	(846)		(1,230)	(1,285)
Franchise merchandise sales	(2,047)	(2,123)	(1,996)	(4,119)	(6,166)		(6,435)	(5,534)
Total revenues	(5,162)	(4,791)	(5,273)	(10,064)	(15,226)		(10,165)	(6,975)
Cost of rentals and fees	(3,167)	(2,912)	(2,654)	(5,566)	(8,733)		(6,547)	(3,703)
Cost of installment sales	(267)	(283)	(296)	(579)	(846)		(1,230)	(1,285)
Franchise cost of merchandise sold	(2,047)	(2,123)	(1,996)	(4,119)	(6,166)		(6,435)	(5,534)
Total cost of revenues	(5,481)	(5,318)	(4,946)	(10,264)	(15,745)		(14,212)	(10,522)
Gross profit	319	527	(327)	200	519		4,047	3,547
Store labor	100	186	260	446	546		1,234	2,246
Other store expenses	(878)	110	(282)	(172)	(1,050)		1,973	3,943
Operating profit	1,097	231	(305)	(74)	1,023		840	(2,642)
Finance charges from refinancing	0	0	2,267	2,267	2,267
Earnings before income taxes	1,097	231	(2,572)	(2,341)	(1,244)		840	(2,642)
Income tax expense	478	83	(981)	(898)	(420)		321	(957)
Net earnings	619	148	(1,591)	(1,443)	(824)		519	(1,685)
Basic earnings per common share	$ 0.01	$ 0.00	$ (0.03)	$ (0.03)	$ (0.02)		$ 0.01	$ (0.02)
Diluted earnings per common share	$ 0.01	$ 0.00	$ (0.03)	$ (0.03)	$ (0.02)		$ 0.01	$ (0.03)
Depreciation of rental merchandise			(354)	(736)	(1,418)		(3,430)	(1,344)
Finance charges			(1,946)	(1,946)	(1,946)
Deferred income taxes			(980)	(897)	(418)		321	(957)
Rental merchandise			(792)	11,603	(24,184)		3,199	2,444
Receivables			114	(8)	(38)		(124)	(20)
Prepaid expenses and other assets			4,212	(6,790)	4,212		0	0
Accounts payable - trade			1,009	(272)	26,634		(1,227)	1,499
Accrued liabilities			328	489	(2,018)		742	63
Net cash provided by operating activities			0	0	0		0	0
Scenario, Previously Reported [Member]
Receivables, net							58,686
Rental merchandise on rent, net							914,618
Rental merchandise held for rent, net							210,450
Total assets							3,018,553
Accounts payable - trade							120,166
Accrued liabilities							315,235
Deferred income taxes							323,326
Total liabilities							1,675,002
Retained earnings							1,888,002		1,665,373
Total equity							1,343,551
Rentals and fees	678,190	684,134	694,168	1,378,302	2,056,492		2,698,395	2,654,081
Installment sales	18,089	18,054	18,356	36,410	54,499		72,705	68,356
Franchise merchandise sales	6,524	5,963	7,324	13,287	19,811		30,991	38,427
Total revenues	769,525	773,217	833,746	1,606,963	2,376,488		3,104,183	3,082,646
Cost of rentals and fees	177,208	177,512	177,870	355,382	532,590		683,221	646,090
Cost of installment sales	6,134	6,358	6,382	12,740	18,874		25,771	24,572
Franchise cost of merchandise sold	6,247	5,737	7,000	12,737	18,984		29,539	36,848
Total cost of revenues	230,086	236,720	270,869	507,589	737,675		954,737	948,729
Gross profit	539,439	536,497	562,877	1,099,374	1,638,813		2,149,446	2,133,917
Store labor	218,523	222,083	225,678	447,761	666,284		880,437	838,131
Other store expenses	209,302	205,658	215,440	421,098	630,400		787,239	760,827
Operating profit	44,823	40,159	59,763	99,922	144,745		246,169	315,671
Finance charges from refinancing	0	0	1,946	1,946	1,946
Earnings before income taxes	33,042	28,608	46,652	75,260	108,302		207,356	284,448
Income tax expense	7,736	11,075	17,795	28,870	36,606		79,118	102,745
Net earnings	25,306	17,533	28,857	46,390	71,696		128,238	181,703
Basic earnings per common share	$ 0.48	$ 0.33	$ 0.55	$ 0.88	$ 1.36		$ 2.34	$ 3.08
Diluted earnings per common share	$ 0.48	$ 0.33	$ 0.54	$ 0.87	$ 1.35		$ 2.32	$ 3.06
Depreciation of rental merchandise			169,843	339,773	509,596		655,591	622,261
Finance charges			1,946	1,946	1,946
Deferred income taxes			(24,370)	(51,204)	(64,912)		23,699	4,386
Rental merchandise			(135,407)	(313,324)	(515,166)		(770,879)	(686,247)
Receivables			(2,849)	(7,039)	(20,307)		(19,124)	(13,370)
Prepaid expenses and other assets			(4,609)	270	(11,017)		(9,798)	1,772
Accounts payable - trade			2,368	(663)	(3,407)		20,600	(5,498)
Accrued liabilities			56,922	(2,943)	7,502		676	14,661
Net cash provided by operating activities			$ 120,060	$ 68,961	$ 63,263		$ 134,342	$ 217,898