CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (Parenthetical) $ in Thousands	12 Months Ended
Dec. 31, 2018 USD ($)
Income Statement [Abstract]
Reclassification of unrealized gain on investment in equity securities, income tax provision, to retained earnings from the cumulative effect of an accounting change	$ 200

Other Comprehensive Income (Loss), Reclassification of Gain on Investment in Equity Securities, Net of Tax, to Retained Earnings from the Effect of an Accounting Change, Tax

No definition available.

Name:	asps_OtherComprehensiveIncomeLossReclassificationofGainonInvestmentinEquitySecuritiesNetofTaxtoRetainedEarningsfromtheEffectofanAccountingChangeTax
Namespace Prefix:	asps_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration