Income Taxes - Reconciliation of Tax Rate (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Reconciliation of statutory tax to effective tax
Federal statutory tax rate	$ 80,191	$ 26,199
REIT and other non-taxable income	(79,198)	(24,501)
State income taxes	326	558
Federal benefit of state tax deduction	(69)	(117)
Intra-entity transfers	(3,868)	0
Other	168	91
Effective tax rate	$ (2,450)	$ 2,230
Reconciliation of statutory tax rate to effective tax rate
Federal statutory tax rate	21.00%	21.00%
REIT and other non-taxable income	(20.70%)	(19.60%)
State income taxes	0.10%	0.40%
Federal benefit of state tax deduction	0.00%	(0.10%)
Intra-entity transfers	(1.00%)	0.00%
Other	0.00%	0.10%
Effective tax rate	(0.60%)	1.80%

Effective Income Tax Rate Reconciliation Intra Entity Transfer

No definition available.

Name:	stwd_EffectiveIncomeTaxRateReconciliationIntraEntityTransfer
Namespace Prefix:	stwd_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to the federal benefit of state tax deductions.

+ References

No definition available.