Fair Value Measurements (Details 2) - USD ($) $ in Thousands	Dec. 31, 2014	Sep. 30, 2014	Dec. 31, 2013
Carrying Value [Member]
Financial assets:
Cash and cash equivalents	$ 77,599	$ 55,325	$ 32,689
Restricted cash	60,218	63,495	8,371
Pawn loans	150,930	162,444	153,421
Consumer loans, net	61,347	63,995	62,653
Pawn service charges receivable, net	30,241	31,044	30,842
Consumer loan fees and interest receivable, net	13,199	12,647	17,415
Restricted cash, non-current	4,310	5,070	4,189
Non-current consumer loans, net	78,362	85,004	78,686
Total	476,206	479,024	388,266
Temporary equity:
Redeemable noncontrolling interest	18,550	22,800	45,825
Financial liabilities:
2.125% cash convertible senior notes due 2019	187,727	185,693
Total	416,823	391,171	270,368
Estimated Fair Value [Member]
Financial assets:
Cash and cash equivalents	77,599	55,325	32,689
Restricted cash	60,218	63,495	8,371
Pawn loans	150,930	162,444	153,421
Consumer loans, net	61,936	64,631	61,789
Pawn service charges receivable, net	30,241	31,044	30,842
Consumer loan fees and interest receivable, net	13,199	12,647	17,415
Restricted cash, non-current	4,310	5,070	4,189
Non-current consumer loans, net	79,615	86,364	79,302
Total	478,048	481,020	388,018
Temporary equity:
Redeemable noncontrolling interest	44,771	49,021	51,596
Financial liabilities:
2.125% cash convertible senior notes due 2019	185,461	185,738
Total	413,284	389,988	271,586
Level 1 [Member]
Financial assets:
Cash and cash equivalents	77,599	55,325	32,689
Restricted cash	60,218	63,495	8,371
Pawn loans	0	0	0
Consumer loans, net	0	0	0
Pawn service charges receivable, net	0	0	0
Consumer loan fees and interest receivable, net	0	0	0
Restricted cash, non-current	4,310	5,070	4,189
Non-current consumer loans, net	0	0	0
Total	142,127	123,890	45,249
Temporary equity:
Redeemable noncontrolling interest	0	0	0
Financial liabilities:
2.125% cash convertible senior notes due 2019	0	0
Total	0	54,178	48,748
Level 2 [Member]
Financial assets:
Cash and cash equivalents	0	0	0
Restricted cash	0	0	0
Pawn loans	0	0	0
Consumer loans, net	0	0	0
Pawn service charges receivable, net	0	0	0
Consumer loan fees and interest receivable, net	0	0	0
Restricted cash, non-current	0	0	0
Non-current consumer loans, net	0	0	0
Total	0	0	0
Temporary equity:
Redeemable noncontrolling interest	0	0	0
Financial liabilities:
2.125% cash convertible senior notes due 2019	185,461	185,738
Total	413,284	335,810	222,838
Level 3 [Member]
Financial assets:
Cash and cash equivalents	0	0	0
Restricted cash	0	0	0
Pawn loans	150,930	162,444	153,421
Consumer loans, net	61,936	64,631	61,789
Pawn service charges receivable, net	30,241	31,044	30,842
Consumer loan fees and interest receivable, net	13,199	12,647	17,415
Restricted cash, non-current	0	0	0
Non-current consumer loans, net	79,615	86,364	79,302
Total	335,921	357,130	342,769
Temporary equity:
Redeemable noncontrolling interest	44,771	49,021	51,596
Financial liabilities:
2.125% cash convertible senior notes due 2019	0	0
Total	0	0	0
Domestic Line of Credit [Member] | Carrying Value [Member]
Financial liabilities:
Line of credit			146,500
Domestic Line of Credit [Member] | Estimated Fair Value [Member]
Financial liabilities:
Line of credit			146,500
Domestic Line of Credit [Member] | Level 1 [Member]
Financial liabilities:
Line of credit			0
Domestic Line of Credit [Member] | Level 2 [Member]
Financial liabilities:
Line of credit			146,500
Domestic Line of Credit [Member] | Level 3 [Member]
Financial liabilities:
Line of credit			0
Consumer loans facility due 2019 [Member] | Carrying Value [Member]
Financial liabilities:
Consumer loans facility	49,475	54,045
Consumer loans facility due 2019 [Member] | Estimated Fair Value [Member]
Financial liabilities:
Consumer loans facility	49,604	54,178
Consumer loans facility due 2019 [Member] | Level 1 [Member]
Financial liabilities:
Consumer loans facility	0	54,178
Consumer loans facility due 2019 [Member] | Level 2 [Member]
Financial liabilities:
Consumer loans facility	49,604	0
Consumer loans facility due 2019 [Member] | Level 3 [Member]
Financial liabilities:
Consumer loans facility	0	0
Consumer loans facility due 2017 [Member] | Carrying Value [Member]
Financial liabilities:
Consumer loans facility			32,147
Consumer loans facility due 2017 [Member] | Estimated Fair Value [Member]
Financial liabilities:
Consumer loans facility			32,225
Consumer loans facility due 2017 [Member] | Level 1 [Member]
Financial liabilities:
Consumer loans facility			32,225
Consumer loans facility due 2017 [Member] | Level 2 [Member]
Financial liabilities:
Consumer loans facility			0
Consumer loans facility due 2017 [Member] | Level 3 [Member]
Financial liabilities:
Consumer loans facility			0
Unsecured notes [Member] | Carrying Value [Member]
Financial liabilities:
Notes	18,727	36,991	36,381
Unsecured notes [Member] | Estimated Fair Value [Member]
Financial liabilities:
Notes	18,787	36,837	36,673
Unsecured notes [Member] | Level 1 [Member]
Financial liabilities:
Notes	0	0	16,523
Unsecured notes [Member] | Level 2 [Member]
Financial liabilities:
Notes	18,787	36,837	20,150
Unsecured notes [Member] | Level 3 [Member]
Financial liabilities:
Notes	0	0	0
Secured notes [Member] | Carrying Value [Member]
Financial liabilities:
Notes	23,935	26,195	4,160
Secured notes [Member] | Estimated Fair Value [Member]
Financial liabilities:
Notes	23,957	26,144	4,001
Secured notes [Member] | Level 1 [Member]
Financial liabilities:
Notes	0	0	0
Secured notes [Member] | Level 2 [Member]
Financial liabilities:
Notes	23,957	26,144	4,001
Secured notes [Member] | Level 3 [Member]
Financial liabilities:
Notes	0	0	0
Foreign currency debt [Member] | Carrying Value [Member]
Financial liabilities:
Debt instrument	23,791	27,185	32,838
Foreign currency debt [Member] | Estimated Fair Value [Member]
Financial liabilities:
Debt instrument	23,952	27,185	33,801
Foreign currency debt [Member] | Level 1 [Member]
Financial liabilities:
Debt instrument	0	0	0
Foreign currency debt [Member] | Level 2 [Member]
Financial liabilities:
Debt instrument	23,952	27,185	33,801
Foreign currency debt [Member] | Level 3 [Member]
Financial liabilities:
Debt instrument	0	0	0
Variable Interest Entity, Primary Beneficiary [Member] | Secured notes [Member] | Carrying Value [Member]
Financial liabilities:
Notes	113,168	61,062	18,342
Variable Interest Entity, Primary Beneficiary [Member] | Secured notes [Member] | Estimated Fair Value [Member]
Financial liabilities:
Notes	111,523	59,906	18,386
Variable Interest Entity, Primary Beneficiary [Member] | Secured notes [Member] | Level 1 [Member]
Financial liabilities:
Notes	0	0	0
Variable Interest Entity, Primary Beneficiary [Member] | Secured notes [Member] | Level 2 [Member]
Financial liabilities:
Notes	111,523	59,906	18,386
Variable Interest Entity, Primary Beneficiary [Member] | Secured notes [Member] | Level 3 [Member]
Financial liabilities:
Notes	$ 0	$ 0	$ 0