CONDENSED CONSOLIDATING FINANCIAL INFORMATION - Condensed Cash Flow Statement (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Cash flows from operating activities
Net cash provided by operating activities	$ 54,787	$ 56,925
Cash flows from investing activities
Purchase of property, equipment and software	(1,609)	(3,093)
Cash paid for Cognical Holdings preferred shares	(958)	0
Changes in restricted cash	(5,403)	(6,993)
Net cash (used in) investing activities	(7,970)	(10,086)
Cash flows from financing activities
Proceeds from credit facilities	10,000
Payments on credit facilities	(10,000)
Net proceeds from issuance of common stock	13,135	0
Proceeds from issuance of 12.00% Senior Secured Notes	0	461,329
Payments on 10.75% Senior Secured Notes	(77,500)
Payments on 12.00% Senior Cash Pay Notes	0	(125,000)
Dividends (paid) received		0
Debt issuance costs paid	(71)	(13,690)
Net cash (used in) financing activities	(73,955)	(95,390)
Effect of exchange rate changes on cash	(4,497)	829
Net increase (decrease) in cash	(31,635)	(47,722)
Cash	130,739	145,803	$ 162,374	$ 193,525
Non-Recourse U.S. SPV Facility
Cash flows from financing activities
Proceeds from credit facilities	3,000
Payments on credit facilities	(12,519)
12% Senior Secured Notes
Cash flows from financing activities
Proceeds from issuance of 12.00% Senior Secured Notes		461,329
Payments on 10.75% Senior Secured Notes	(77,500)	0
10.75% Senior Secured Notes
Cash flows from financing activities
Payments on 10.75% Senior Secured Notes	0	(426,034)
Consolidation, Eliminations
Cash flows from operating activities
Net cash provided by operating activities	0	0
Cash flows from investing activities
Purchase of property, equipment and software	0	0
Cash paid for Cognical Holdings preferred shares	0
Changes in restricted cash	0	0
Net cash (used in) investing activities	0	0
Cash flows from financing activities
Proceeds from credit facilities	0
Payments on credit facilities	0
Net proceeds from issuance of common stock	0
Payments on 10.75% Senior Secured Notes	0
Payments on 12.00% Senior Cash Pay Notes		0
Dividends (paid) received		0
Debt issuance costs paid	0	0
Net cash (used in) financing activities	0	0
Effect of exchange rate changes on cash	0	0
Net increase (decrease) in cash	0	0
Cash	0	0	0	0
Consolidation, Eliminations | Non-Recourse U.S. SPV Facility
Cash flows from financing activities
Proceeds from credit facilities	0
Payments on credit facilities	0
Consolidation, Eliminations | 12% Senior Secured Notes
Cash flows from financing activities
Proceeds from issuance of 12.00% Senior Secured Notes		0
Consolidation, Eliminations | 10.75% Senior Secured Notes
Cash flows from financing activities
Payments on 10.75% Senior Secured Notes		0
Subsidiary Guarantors | Reportable Legal Entities
Cash flows from operating activities
Net cash provided by operating activities	(34,233)	(33,328)
Cash flows from investing activities
Purchase of property, equipment and software	(788)	(1,672)
Cash paid for Cognical Holdings preferred shares	0
Changes in restricted cash	0	0
Net cash (used in) investing activities	(788)	(1,672)
Cash flows from financing activities
Proceeds from credit facilities	0
Payments on credit facilities	0
Net proceeds from issuance of common stock	0
Payments on 10.75% Senior Secured Notes	0
Payments on 12.00% Senior Cash Pay Notes		0
Dividends (paid) received		0
Debt issuance costs paid	0	0
Net cash (used in) financing activities	0	0
Effect of exchange rate changes on cash	0	0
Net increase (decrease) in cash	(35,021)	(35,000)
Cash	82,358	92,712	117,379	127,712
Subsidiary Guarantors | Reportable Legal Entities | Non-Recourse U.S. SPV Facility
Cash flows from financing activities
Proceeds from credit facilities	0
Payments on credit facilities	0
Subsidiary Guarantors | Reportable Legal Entities | 12% Senior Secured Notes
Cash flows from financing activities
Proceeds from issuance of 12.00% Senior Secured Notes		0
Subsidiary Guarantors | Reportable Legal Entities | 10.75% Senior Secured Notes
Cash flows from financing activities
Payments on 10.75% Senior Secured Notes		0
Subsidiary Non-Guarantors | Reportable Legal Entities
Cash flows from operating activities
Net cash provided by operating activities	4,868	(13,996)
Cash flows from investing activities
Purchase of property, equipment and software	(821)	(1,421)
Cash paid for Cognical Holdings preferred shares	0
Changes in restricted cash	(6)	121
Net cash (used in) investing activities	(827)	(1,300)
Cash flows from financing activities
Proceeds from credit facilities	0
Payments on credit facilities	0
Net proceeds from issuance of common stock	0
Payments on 10.75% Senior Secured Notes	0
Payments on 12.00% Senior Cash Pay Notes		0
Dividends (paid) received		0
Debt issuance costs paid	0	0
Net cash (used in) financing activities	0	0
Effect of exchange rate changes on cash	(575)	818
Net increase (decrease) in cash	3,466	(14,478)
Cash	48,381	49,301	44,915	63,779
Subsidiary Non-Guarantors | Reportable Legal Entities | Non-Recourse U.S. SPV Facility
Cash flows from financing activities
Proceeds from credit facilities	0
Payments on credit facilities	0
Subsidiary Non-Guarantors | Reportable Legal Entities | 12% Senior Secured Notes
Cash flows from financing activities
Proceeds from issuance of 12.00% Senior Secured Notes		0
Subsidiary Non-Guarantors | Reportable Legal Entities | 10.75% Senior Secured Notes
Cash flows from financing activities
Payments on 10.75% Senior Secured Notes		0
SPV Subs | Reportable Legal Entities
Cash flows from operating activities
Net cash provided by operating activities	14,916	(891)
Cash flows from investing activities
Purchase of property, equipment and software	0	0
Cash paid for Cognical Holdings preferred shares	0
Changes in restricted cash	(5,397)	(7,114)
Net cash (used in) investing activities	(5,397)	(7,114)
Cash flows from financing activities
Proceeds from credit facilities	0
Payments on credit facilities	0
Net proceeds from issuance of common stock	0
Payments on 10.75% Senior Secured Notes	0
Payments on 12.00% Senior Cash Pay Notes		0
Dividends (paid) received		0
Debt issuance costs paid	0	0
Net cash (used in) financing activities	(9,519)	8,005
Effect of exchange rate changes on cash	0	0
Net increase (decrease) in cash	0	0
Cash	0	0	0	0
SPV Subs | Reportable Legal Entities | Non-Recourse U.S. SPV Facility
Cash flows from financing activities
Proceeds from credit facilities	3,000
Payments on credit facilities	(12,519)
SPV Subs | Reportable Legal Entities | 12% Senior Secured Notes
Cash flows from financing activities
Proceeds from issuance of 12.00% Senior Secured Notes		0
SPV Subs | Reportable Legal Entities | 10.75% Senior Secured Notes
Cash flows from financing activities
Payments on 10.75% Senior Secured Notes		0
Subsidiaries
Cash flows from operating activities
Net cash provided by operating activities	68,002	62,008
Cash flows from investing activities
Purchase of property, equipment and software	(1,609)	(3,093)
Cash paid for Cognical Holdings preferred shares	(958)
Changes in restricted cash	(5,403)	(6,993)
Net cash (used in) investing activities	(7,970)	(10,086)
Cash flows from financing activities
Proceeds from credit facilities	10,000
Payments on credit facilities	(10,000)
Net proceeds from issuance of common stock	0
Payments on 10.75% Senior Secured Notes	(77,500)
Payments on 12.00% Senior Cash Pay Notes		0
Dividends (paid) received		(130,083)
Debt issuance costs paid	(71)	(13,690)
Net cash (used in) financing activities	(87,090)	(100,473)
Effect of exchange rate changes on cash	(4,497)	829
Net increase (decrease) in cash	(31,555)	(47,722)
Cash	130,739	145,723	162,294	193,445
Subsidiaries | Non-Recourse U.S. SPV Facility
Cash flows from financing activities
Proceeds from credit facilities	3,000
Payments on credit facilities	(12,519)
Subsidiaries | 12% Senior Secured Notes
Cash flows from financing activities
Proceeds from issuance of 12.00% Senior Secured Notes		461,329
Subsidiaries | 10.75% Senior Secured Notes
Cash flows from financing activities
Payments on 10.75% Senior Secured Notes		(426,034)
Subsidiaries | Consolidation, Eliminations
Cash flows from operating activities
Net cash provided by operating activities	3,922	(11)
Cash flows from investing activities
Purchase of property, equipment and software	0	0
Cash paid for Cognical Holdings preferred shares	0
Changes in restricted cash	0	0
Net cash (used in) investing activities	0	0
Cash flows from financing activities
Proceeds from credit facilities	0
Payments on credit facilities	0
Net proceeds from issuance of common stock	0
Payments on 10.75% Senior Secured Notes	0
Payments on 12.00% Senior Cash Pay Notes		0
Dividends (paid) received		0
Debt issuance costs paid	0	0
Net cash (used in) financing activities	0	0
Effect of exchange rate changes on cash	(3,922)	11
Net increase (decrease) in cash	0	0
Cash	0	0	0	0
Subsidiaries | Consolidation, Eliminations | Non-Recourse U.S. SPV Facility
Cash flows from financing activities
Proceeds from credit facilities	0
Payments on credit facilities	0
Subsidiaries | Consolidation, Eliminations | 12% Senior Secured Notes
Cash flows from financing activities
Proceeds from issuance of 12.00% Senior Secured Notes		0
Subsidiaries | Consolidation, Eliminations | 10.75% Senior Secured Notes
Cash flows from financing activities
Payments on 10.75% Senior Secured Notes		0
CURO
Cash flows from operating activities
Net cash provided by operating activities	(13,215)	(5,083)
Cash flows from investing activities
Purchase of property, equipment and software	0	0
Cash paid for Cognical Holdings preferred shares	0
Changes in restricted cash	0	0
Net cash (used in) investing activities	0	0
Cash flows from financing activities
Proceeds from credit facilities	0
Payments on credit facilities	0
Net proceeds from issuance of common stock	13,135
Payments on 10.75% Senior Secured Notes	0
Payments on 12.00% Senior Cash Pay Notes		(125,000)
Dividends (paid) received		130,083
Debt issuance costs paid	0	0
Net cash (used in) financing activities	13,135	5,083
Effect of exchange rate changes on cash	0	0
Net increase (decrease) in cash	(80)	0
Cash	0	80	80	80
CURO | Non-Recourse U.S. SPV Facility
Cash flows from financing activities
Proceeds from credit facilities	0
Payments on credit facilities	0
CURO | 12% Senior Secured Notes
Cash flows from financing activities
Proceeds from issuance of 12.00% Senior Secured Notes		0
CURO | 10.75% Senior Secured Notes
Cash flows from financing activities
Payments on 10.75% Senior Secured Notes		0
CFTC | Subsidiary Issuer | Reportable Legal Entities
Cash flows from operating activities
Net cash provided by operating activities	78,529	(317,556)
Cash flows from investing activities
Purchase of property, equipment and software	0	0
Cash paid for Cognical Holdings preferred shares	(958)
Changes in restricted cash	0	0
Net cash (used in) investing activities	(958)	0
Cash flows from financing activities
Proceeds from credit facilities	10,000
Payments on credit facilities	(10,000)
Net proceeds from issuance of common stock	0
Payments on 10.75% Senior Secured Notes	(77,500)
Payments on 12.00% Senior Cash Pay Notes		0
Dividends (paid) received		(130,083)
Debt issuance costs paid	(71)	(13,690)
Net cash (used in) financing activities	(77,571)	317,556
Effect of exchange rate changes on cash	0	0
Net increase (decrease) in cash	0	0
Cash	0	0	0	0
CFTC | Subsidiary Issuer | Reportable Legal Entities | Non-Recourse U.S. SPV Facility
Cash flows from financing activities
Proceeds from credit facilities	0
Payments on credit facilities	0
CFTC | Subsidiary Issuer | Reportable Legal Entities | 12% Senior Secured Notes
Cash flows from financing activities
Proceeds from issuance of 12.00% Senior Secured Notes		461,329
CFTC | Subsidiary Issuer | Reportable Legal Entities | 10.75% Senior Secured Notes
Cash flows from financing activities
Payments on 10.75% Senior Secured Notes		0
CURO Intermediate | Subsidiary Issuer | Reportable Legal Entities
Cash flows from operating activities
Net cash provided by operating activities	0	427,790
Cash flows from investing activities
Purchase of property, equipment and software	0	0
Cash paid for Cognical Holdings preferred shares	0
Changes in restricted cash	0	0
Net cash (used in) investing activities	0	0
Cash flows from financing activities
Proceeds from credit facilities	0
Payments on credit facilities	0
Net proceeds from issuance of common stock	0
Payments on 10.75% Senior Secured Notes	0
Payments on 12.00% Senior Cash Pay Notes		0
Dividends (paid) received		0
Debt issuance costs paid	0	0
Net cash (used in) financing activities	0	(426,034)
Effect of exchange rate changes on cash	0	0
Net increase (decrease) in cash	0	1,756
Cash	0	3,710	$ 0	$ 1,954
CURO Intermediate | Subsidiary Issuer | Reportable Legal Entities | Non-Recourse U.S. SPV Facility
Cash flows from financing activities
Proceeds from credit facilities	0
Payments on credit facilities	0
CURO Intermediate | Subsidiary Issuer | Reportable Legal Entities | 12% Senior Secured Notes
Cash flows from financing activities
Proceeds from issuance of 12.00% Senior Secured Notes		0
CURO Intermediate | Subsidiary Issuer | Reportable Legal Entities | 10.75% Senior Secured Notes
Cash flows from financing activities
Payments on 10.75% Senior Secured Notes		(426,034)
Revolving Credit Facility
Cash flows from financing activities
Proceeds from credit facilities	3,000	19,802
Payments on credit facilities	$ (12,519)	(11,797)
Revolving Credit Facility | Consolidation, Eliminations
Cash flows from financing activities
Proceeds from credit facilities		0
Payments on credit facilities		0
Revolving Credit Facility | Subsidiary Guarantors | Reportable Legal Entities
Cash flows from financing activities
Proceeds from credit facilities		0
Payments on credit facilities		0
Revolving Credit Facility | Subsidiary Non-Guarantors | Reportable Legal Entities
Cash flows from financing activities
Proceeds from credit facilities		0
Payments on credit facilities		0
Revolving Credit Facility | SPV Subs | Reportable Legal Entities
Cash flows from financing activities
Proceeds from credit facilities		19,802
Payments on credit facilities		(11,797)
Revolving Credit Facility | Subsidiaries
Cash flows from financing activities
Proceeds from credit facilities		19,802
Payments on credit facilities		(11,797)
Revolving Credit Facility | Subsidiaries | Consolidation, Eliminations
Cash flows from financing activities
Proceeds from credit facilities		0
Payments on credit facilities		0
Revolving Credit Facility | CURO
Cash flows from financing activities
Proceeds from credit facilities		0
Payments on credit facilities		0
Revolving Credit Facility | CFTC | Subsidiary Issuer | Reportable Legal Entities
Cash flows from financing activities
Proceeds from credit facilities		0
Payments on credit facilities		0
Revolving Credit Facility | CURO Intermediate | Subsidiary Issuer | Reportable Legal Entities
Cash flows from financing activities
Proceeds from credit facilities		0
Payments on credit facilities		$ 0