Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash paid for interest	$ 64,527	$ 33,952
Cash paid (refunds received) for income taxes, net	13	66
Non-cash investing activity:
Mortgage servicing rights resulting from loan sales	282,315	115,751
Mortgage servicing liabilities resulting from loan sales	6,576	794
Unsettled portion of MSR acquisitions	1,656	16,291
Operating right-of-use assets recognized	1,534	58,598
Non-cash financing activity:
Issuance of Excess servicing spread payable to PennyMac Mortgage Investment Trust pursuant to a recapture agreement	379	508
Issuance of common stock in settlement of director fees	$ 48	$ 86