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Share-Based Payments - Summary of Restricted Stock and RSU Vesting Dates (Details) (LTIP [Member]) | Dec. 31, 2014
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 540,771 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest
January 2015 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 3,698 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_JanuaryTwoThousandFifteenMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
March 2015 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 6,667 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_MarchTwoThousandFifteenMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
April 2015 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 3,699 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_AprilTwoThousandFifteenMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
July 2015 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 3,300 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_JulyTwoThousandFifteenMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
July 2015 (2) [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 250 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_July20152Member / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
October 2015 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 3,300 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_OctoberTwoThousandFifteenMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
December 2015 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 212,340 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_DecemberTwoThousandFifteenMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
January 2016 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 3,299 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_JanuaryTwoThousandSixteenMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
April 2016 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 3,300 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_AprilTwoThousandSixteenMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
July 2016 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 2,828 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_JulyTwoThousandSixteenMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
October 2016 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 2,827 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_OctoberTwoThousandSixteenMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
December 2016 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 145,672 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_DecemberTwoThousandSixteenMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
January 2017 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 2,411 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_JanuaryTwoThousandSeventeenMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
April 2017 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 2,414 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_AprilTwoThousandSeventeenMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
July 2017 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 1,250 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_July2017Member / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
October 2017 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 1,250 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_October2017Member / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
December 2017 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 142,266 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_December2017Member / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
Shares Vesting [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 73,927 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
Shares Vesting [Member] | January 2015 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 3,698 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_JanuaryTwoThousandFifteenMember / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
Shares Vesting [Member] | March 2015 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 0 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_MarchTwoThousandFifteenMember / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
Shares Vesting [Member] | April 2015 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 3,699 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_AprilTwoThousandFifteenMember / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
Shares Vesting [Member] | July 2015 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 3,300 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_JulyTwoThousandFifteenMember / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
Shares Vesting [Member] | July 2015 (2) [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 250 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_July20152Member / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
Shares Vesting [Member] | October 2015 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 3,300 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_OctoberTwoThousandFifteenMember / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
Shares Vesting [Member] | December 2015 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 15,588 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_DecemberTwoThousandFifteenMember / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
Shares Vesting [Member] | January 2016 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 3,299 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_JanuaryTwoThousandSixteenMember / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
Shares Vesting [Member] | April 2016 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 3,300 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_AprilTwoThousandSixteenMember / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
Shares Vesting [Member] | July 2016 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 2,828 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_JulyTwoThousandSixteenMember / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
Shares Vesting [Member] | October 2016 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 2,827 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_OctoberTwoThousandSixteenMember / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
Shares Vesting [Member] | December 2016 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 12,255 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_DecemberTwoThousandSixteenMember / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
Shares Vesting [Member] | January 2017 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 2,411 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_JanuaryTwoThousandSeventeenMember / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
Shares Vesting [Member] | April 2017 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 2,414 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_AprilTwoThousandSeventeenMember / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
Shares Vesting [Member] | July 2017 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 1,250 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_July2017Member / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
Shares Vesting [Member] | October 2017 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 1,250 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_October2017Member / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
Shares Vesting [Member] | December 2017 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 12,258 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_December2017Member / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
RSU Vesting [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 466,844 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
RSU Vesting [Member] | January 2015 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 0 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_JanuaryTwoThousandFifteenMember / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
RSU Vesting [Member] | March 2015 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 6,667 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_MarchTwoThousandFifteenMember / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
RSU Vesting [Member] | April 2015 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 0 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_AprilTwoThousandFifteenMember / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
RSU Vesting [Member] | July 2015 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 0 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_JulyTwoThousandFifteenMember / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
RSU Vesting [Member] | July 2015 (2) [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 0 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_July20152Member / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
RSU Vesting [Member] | October 2015 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 0 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_OctoberTwoThousandFifteenMember / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
RSU Vesting [Member] | December 2015 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 196,752 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_DecemberTwoThousandFifteenMember / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
RSU Vesting [Member] | January 2016 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 0 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_JanuaryTwoThousandSixteenMember / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
RSU Vesting [Member] | April 2016 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 0 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_AprilTwoThousandSixteenMember / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
RSU Vesting [Member] | July 2016 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 0 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_JulyTwoThousandSixteenMember / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
RSU Vesting [Member] | October 2016 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 0 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_OctoberTwoThousandSixteenMember / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
RSU Vesting [Member] | December 2016 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 133,417 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_DecemberTwoThousandSixteenMember / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
RSU Vesting [Member] | January 2017 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 0 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_JanuaryTwoThousandSeventeenMember / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
RSU Vesting [Member] | April 2017 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 0 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_AprilTwoThousandSeventeenMember / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
RSU Vesting [Member] | July 2017 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 0 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_July2017Member / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
RSU Vesting [Member] | October 2017 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 0 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_October2017Member / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember
RSU Vesting [Member] | December 2017 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares vesting | 130,008 ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest / us-gaap_AwardDateAxis = ari_December2017Member / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember / us-gaap_PlanNameAxis = ari_A2009EquityIncentivePlanLTIPMember

X
- Definition Share based compensation arrangement by share based payment award equity instruments other than options expected to vest. + References No definition available. + Details
Name: | ari_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExpectedtoVest
Namespace Prefix: | ari_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

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- Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration