Condensed Consolidating Financial Statements - Condensed Consolidating Balance Sheets - (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Assets
Cash and cash equivalents	$ 112,211	$ 42,066	$ 143,444	$ 75,106
Restricted cash and cash equivalents	20,908	7,379	7,410
Loans and finance receivables, net	428,202	434,633	279,055
Income taxes receivable	7,436	5,503
Other receivables and prepaid expenses	18,810	20,049	15,667
Property and equipment, net	45,740	48,055	40,257
Goodwill	267,012	267,008	255,856
Intangible assets, net	6,221	6,540	33
Other assets	8,636	9,304	8,173
Total assets	915,176	840,537	749,895
Liabilities and Stockholders' Equity
Accounts payable and accrued expenses	74,278	72,141	54,175
Deferred tax liabilities, net	28,879	20,519	28,038
Long-term debt	594,414	541,909	481,417
Total liabilities	$ 697,571	$ 634,569	$ 572,075
Commitments and contingencies
Stockholders' equity	$ 217,605	$ 205,968	$ 177,820	$ 153,984
Total liabilities and stockholders' equity	915,176	840,537	$ 749,895
Parent
Assets
Income taxes receivable	42,513	37,201
Other receivables and prepaid expenses	131	162
Investment in subsidiaries	248,576	233,632
Intercompany receivable	426,183	480,112
Other assets	767	2,284
Total assets	718,170	753,391
Liabilities and Stockholders' Equity
Accounts payable and accrued expenses	16,349	5,514
Long-term debt	484,216	541,909
Total liabilities	$ 500,565	$ 547,423
Commitments and contingencies
Stockholders' equity	$ 217,605	$ 205,968
Total liabilities and stockholders' equity	718,170	753,391
Guarantor Subsidiaries
Assets
Cash and cash equivalents	110,721	40,927
Restricted cash and cash equivalents	7,191	7,379
Loans and finance receivables, net	285,172	430,862
Income taxes receivable	(35,073)	(31,709)
Other receivables and prepaid expenses	18,487	19,791
Property and equipment, net	45,404	47,821
Goodwill	267,012	267,008
Intangible assets, net	6,214	6,532
Investment in subsidiaries	13,769	14,177
Other assets	7,869	7,020
Total assets	726,766	809,808
Liabilities and Stockholders' Equity
Accounts payable and accrued expenses	56,572	66,220
Intercompany payables	384,495	480,906
Deferred tax liabilities, net	29,146	20,562
Total liabilities	$ 470,213	$ 567,688
Commitments and contingencies
Stockholders' equity	$ 256,553	$ 242,120
Total liabilities and stockholders' equity	726,766	809,808
Non-Guarantor Subsidiaries
Assets
Cash and cash equivalents	1,490	1,139
Restricted cash and cash equivalents	13,717
Loans and finance receivables, net	143,030	3,771
Income taxes receivable	(4)	11
Other receivables and prepaid expenses	192	96
Property and equipment, net	336	234
Intangible assets, net	7	8
Intercompany receivable		794
Total assets	158,768	6,053
Liabilities and Stockholders' Equity
Accounts payable and accrued expenses	1,357	407
Intercompany payables	41,688
Deferred tax liabilities, net	(267)	(43)
Long-term debt	110,198
Total liabilities	$ 152,976	$ 364
Commitments and contingencies
Stockholders' equity	$ 5,792	$ 5,689
Total liabilities and stockholders' equity	158,768	6,053
Eliminations
Assets
Investment in subsidiaries	(262,345)	(247,809)
Intercompany receivable	(426,183)	(480,906)
Total assets	(688,528)	(728,715)
Liabilities and Stockholders' Equity
Intercompany payables	(426,183)	(480,906)
Total liabilities	$ (426,183)	$ (480,906)
Commitments and contingencies
Stockholders' equity	$ (262,345)	$ (247,809)
Total liabilities and stockholders' equity	$ (688,528)	$ (728,715)