Quarterly Financial Information (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended																12 Months Ended
	Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2012		Sep. 30, 2012		Jun. 30, 2012		Mar. 31, 2012		Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Disclosure Quarterly Financial Information [Abstract]
Revenues	$ 553,852		$ 537,224		$ 550,545		$ 593,010		$ 565,366		$ 526,883		$ 537,279		$ 583,299		$ 2,234,631	$ 2,212,827	$ 2,012,578
Gross Profit	263,080	[1]	265,056	[1]	282,276	[1]	302,439	[1]	264,396	[1]	259,957	[1]	266,913	[1]	284,083	[1]
Earnings Before Income Taxes	34,111		29,420		40,387		81,042		57,192		46,044		58,590		115,029		184,960	276,855	183,377
Net Earnings	$ 22,674		$ 21,138		$ 25,854		$ 51,000		$ 36,632		$ 28,941		$ 36,244		$ 71,226		$ 120,666	$ 173,043	$ 113,767
Earnings Per Share	$ 0.30		$ 0.28		$ 0.34		$ 0.67		$ 0.48		$ 0.38		$ 0.48		$ 0.94		$ 1.59	$ 2.28	$ 1.46
Earnings Per Share Assuming Dilution	$ 0.30		$ 0.28		$ 0.34		$ 0.67		$ 0.48		$ 0.38		$ 0.47		$ 0.92		$ 1.58	$ 2.25	$ 1.43

[1] Gross profit is the sum of lease revenues and fees, retail sales, and non-retail sales less retail cost of sales, non-retail cost of sales, depreciation of lease merchandise and write-offs of lease merchandise.