Fair Value Measurements - Financial Assets and Liabilities Not Measured at Fair Value (Detail) - USD ($) $ in Thousands		Mar. 31, 2016		Dec. 31, 2015	Mar. 31, 2015
Carrying Value
Financial assets:
Cash and cash equivalents		$ 112,211		$ 42,066	$ 143,444
Short-term loans and line of credit accounts, net	[1]	123,755		129,269	100,124
Installment loans and RPAs, net	[1]	304,447	[2]	305,364	178,931
Restricted cash		20,908	[3]	7,379	7,410
Investment in unconsolidated investee	[5]	6,703	[4]	6,703	6,703	[4]
Total		568,024		490,781	436,612
Financial liabilities:
Liability for estimated losses on consumer loans guaranteed by the Company		1,182		1,756	945
Promissory note		3,000		3,000
Securitization Notes		113,913
Senior Notes		495,049		494,867	494,347
Total		613,144		558,023	495,292
Credit agreement borrowings				58,400
Level 1 | Estimated Fair Value
Financial assets:
Cash and cash equivalents		112,211		42,066	143,444
Restricted cash		20,908	[3]	7,379	7,410
Total		133,119		49,445	150,854
Level 2 | Estimated Fair Value
Financial liabilities:
Securitization Notes		113,913
Senior Notes		371,500		374,500	475,000
Total		485,413		374,500	475,000
Level 3 | Estimated Fair Value
Financial assets:
Short-term loans and line of credit accounts, net	[1]	123,755		129,269	100,124
Installment loans and RPAs, net	[1]	283,871	[2]	283,700	178,931
Investment in unconsolidated investee	[5]	6,703	[4]	6,703	6,703	[4]
Total		414,329		419,672	285,758
Financial liabilities:
Liability for estimated losses on consumer loans guaranteed by the Company		1,182		1,756	945
Promissory note		3,019		2,984
Total		$ 4,201		63,140	$ 945
Credit agreement borrowings				$ 58,400

[1] Short-term loans, line of credit accounts, installment loans and RPAs are included in “Loans and finance receivables, net” in the consolidated balance sheets.

[2] Installment loan and RPAs, net include $138.3 million in net assets of consolidated VIEs as of March 31, 2016.

[3] Restricted cash includes $13.7 million in assets of consolidated VIEs as of March 31, 2016.

[4] Investment in unconsolidated investee is included in “Other assets” in the consolidated balance sheets.

[5] See Note 4 for additional information related to the investment in unconsolidated investee.