0001001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 0002002 - Document - Audit Information link:presentationLink link:calculationLink link:definitionLink 1001003 - Statement - CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 1002004 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 1003005 - Statement - CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME link:presentationLink link:calculationLink link:definitionLink 1004006 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 1005007 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 2101101 - Disclosure - BASIS OF PRESENTATION AND BUSINESS link:presentationLink link:calculationLink link:definitionLink 2402401 - Disclosure - BASIS OF PRESENTATION AND BUSINESS (Details) link:presentationLink link:calculationLink link:definitionLink 2103102 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES link:presentationLink link:calculationLink link:definitionLink 2204201 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) link:presentationLink link:calculationLink link:definitionLink 2305301 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) link:presentationLink link:calculationLink link:definitionLink 2406402 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2407403 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Concentration of Credit Risk (Details) link:presentationLink link:calculationLink link:definitionLink 2108103 - Disclosure - REVENUE link:presentationLink link:calculationLink link:definitionLink 2309302 - Disclosure - REVENUE (Tables) link:presentationLink link:calculationLink link:definitionLink 2410404 - Disclosure - REVENUE - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2411405 - Disclosure - REVENUE - Revenues from Contract with Customers (Details) link:presentationLink link:calculationLink link:definitionLink 2112104 - Disclosure - ACCOUNTS RECEIVABLE AND AGENT ADVANCES RECEIVABLE, NET OF ALLOWANCE link:presentationLink link:calculationLink link:definitionLink 2313303 - Disclosure - ACCOUNTS RECEIVABLE AND AGENT ADVANCES RECEIVABLE, NET OF ALLOWANCE (Tables) link:presentationLink link:calculationLink link:definitionLink 2414406 - Disclosure - ACCOUNTS RECEIVABLE AND AGENT ADVANCES RECEIVABLE, NET OF ALLOWANCE - Agent Advances Receivable Outstanding Balance (Details) link:presentationLink link:calculationLink link:definitionLink 2415407 - Disclosure - ACCOUNTS RECEIVABLE AND AGENT ADVANCES RECEIVABLE, NET OF ALLOWANCE - Agent Advances Receivable, Net of Allowance for Credit Loss (Details) link:presentationLink link:calculationLink link:definitionLink 2416408 - Disclosure - ACCOUNTS RECEIVABLE AND AGENT ADVANCES RECEIVABLE, NET OF ALLOWANCE - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2417409 - Disclosure - ACCOUNTS RECEIVABLE AND AGENT ADVANCES RECEIVABLE, NET OF ALLOWANCE - Maturities of Agent Advances Receivable (Details) link:presentationLink link:calculationLink link:definitionLink 2418410 - Disclosure - ACCOUNTS RECEIVABLE AND AGENT ADVANCES RECEIVABLE, NET OF ALLOWANCE - Changes in Allowance for Credit Losses (Details) link:presentationLink link:calculationLink link:definitionLink 2419411 - Disclosure - ACCOUNTS RECEIVABLE AND AGENT ADVANCES RECEIVABLE, NET OF ALLOWANCE - Allowance for Credit Losses (Details) link:presentationLink link:calculationLink link:definitionLink 2120105 - Disclosure - PREPAID EXPENSES AND OTHER ASSETS link:presentationLink link:calculationLink link:definitionLink 2321304 - Disclosure - PREPAID EXPENSES AND OTHER ASSETS (Tables) link:presentationLink link:calculationLink link:definitionLink 2422412 - Disclosure - PREPAID EXPENSES AND OTHER ASSETS - Prepaid Expenses and Other Current Assets (Details) link:presentationLink link:calculationLink link:definitionLink 2423413 - Disclosure - PREPAID EXPENSES AND OTHER ASSETS - Other Assets (Details) link:presentationLink link:calculationLink link:definitionLink 2424414 - Disclosure - PREPAID EXPENSES AND OTHER ASSETS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2125106 - Disclosure - PROPERTY AND EQUIPMENT link:presentationLink link:calculationLink link:definitionLink 2326305 - Disclosure - PROPERTY AND EQUIPMENT (Tables) link:presentationLink link:calculationLink link:definitionLink 2427415 - Disclosure - PROPERTY AND EQUIPMENT - Property and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 2428416 - Disclosure - PROPERTY AND EQUIPMENT - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2129107 - Disclosure - GOODWILL AND INTANGIBLE ASSETS link:presentationLink link:calculationLink link:definitionLink 2330306 - Disclosure - GOODWILL AND INTANGIBLE ASSETS (Tables) link:presentationLink link:calculationLink link:definitionLink 2431417 - Disclosure - GOODWILL AND INTANGIBLE ASSETS - Summary of Goodwill and Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 2432418 - Disclosure - GOODWILL AND INTANGIBLE ASSETS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2433419 - Disclosure - GOODWILL AND INTANGIBLE ASSETS - Changes in Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 2434420 - Disclosure - GOODWILL AND INTANGIBLE ASSETS - Amortization Expense Related to Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 2135108 - Disclosure - WIRE TRANSFERS AND MONEY ORDERS PAYABLE, NET link:presentationLink link:calculationLink link:definitionLink 2336307 - Disclosure - WIRE TRANSFERS AND MONEY ORDERS PAYABLE, NET (Tables) link:presentationLink link:calculationLink link:definitionLink 2437421 - Disclosure - WIRE TRANSFERS AND MONEY ORDERS PAYABLE, NET (Details) link:presentationLink link:calculationLink link:definitionLink 2138109 - Disclosure - ACCRUED AND OTHER LIABILITIES link:presentationLink link:calculationLink link:definitionLink 2339308 - Disclosure - ACCRUED AND OTHER LIABILITIES (Tables) link:presentationLink link:calculationLink link:definitionLink 2440422 - Disclosure - ACCRUED AND OTHER LIABILITIES - Accrued and Other Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 2441423 - Disclosure - ACCRUED AND OTHER LIABILITIES - Changes in Deferred Revenue Loyalty Program Liability (Details) link:presentationLink link:calculationLink link:definitionLink 2142110 - Disclosure - DEBT link:presentationLink link:calculationLink link:definitionLink 2343309 - Disclosure - DEBT (Tables) link:presentationLink link:calculationLink link:definitionLink 2444424 - Disclosure - DEBT - Summary of Debt (Details) link:presentationLink link:calculationLink link:definitionLink 2445425 - Disclosure - DEBT - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2446426 - Disclosure - DEBT - Scheduled Annual Payments of Term Loan (Details) link:presentationLink link:calculationLink link:definitionLink 2147111 - Disclosure - FAIR VALUE MEASUREMENTS link:presentationLink link:calculationLink link:definitionLink 2148112 - Disclosure - SHARE-BASED COMPENSATION link:presentationLink link:calculationLink link:definitionLink 2349310 - Disclosure - SHARE-BASED COMPENSATION (Tables) link:presentationLink link:calculationLink link:definitionLink 2450427 - Disclosure - SHARE-BASED COMPENSATION - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2451428 - Disclosure - SHARE-BASED COMPENSATION - Fair Value of Stock Options (Details) link:presentationLink link:calculationLink link:definitionLink 2452429 - Disclosure - SHARE-BASED COMPENSATION - Stock Option Activity (Details) link:presentationLink link:calculationLink link:definitionLink 2453430 - Disclosure - SHARE-BASED COMPENSATION - Summary of RSUs, RSAs, and PSUs (Details) link:presentationLink link:calculationLink link:definitionLink 2154113 - Disclosure - Equity link:presentationLink link:calculationLink link:definitionLink 2455431 - Disclosure - Equity (Details) link:presentationLink link:calculationLink link:definitionLink 2156114 - Disclosure - EARNINGS PER SHARE link:presentationLink link:calculationLink link:definitionLink 2357311 - Disclosure - EARNINGS PER SHARE (Tables) link:presentationLink link:calculationLink link:definitionLink 2458432 - Disclosure - EARNINGS PER SHARE - Basic and Diluted Earnings (Loss) per Share (Details) link:presentationLink link:calculationLink link:definitionLink 2459433 - Disclosure - EARNINGS PER SHARE - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2160115 - Disclosure - INCOME TAXES link:presentationLink link:calculationLink link:definitionLink 2361312 - Disclosure - INCOME TAXES (Tables) link:presentationLink link:calculationLink link:definitionLink 2462434 - Disclosure - INCOME TAXES - Provision (Benefit) for Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 2463435 - Disclosure - INCOME TAXES - Reconciliation of Tax Provision (Benefit) (Details) link:presentationLink link:calculationLink link:definitionLink 2464436 - Disclosure - INCOME TAXES - Deferred Tax Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 2465437 - Disclosure - INCOME TAXES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2166116 - Disclosure - COMMITMENTS AND CONTINGENCIES link:presentationLink link:calculationLink link:definitionLink 2367313 - Disclosure - COMMITMENTS AND CONTINGENCIES (Tables) link:presentationLink link:calculationLink link:definitionLink 2468438 - Disclosure - COMMITMENTS AND CONTINGENCIES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2469439 - Disclosure - COMMITMENTS AND CONTINGENCIES - Future Minimum Rental Payments (Details) link:presentationLink link:calculationLink link:definitionLink 2170117 - Disclosure - DEFINED CONTRIBUTION PLAN link:presentationLink link:calculationLink link:definitionLink 2471440 - Disclosure - DEFINED CONTRIBUTION PLAN (Details) link:presentationLink link:calculationLink link:definitionLink