Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash paid for interest	$ 33,952	$ 40,227
Cash paid for income taxes, net	66	2
Non-cash investing activity:
Mortgage servicing rights resulting from mortgage loan sales	115,751	143,910
Mortgage servicing liabilities resulting from mortgage loan sales	794	2,037
Unsettled portion of MSR acquisitions	16,291	62
Operating lease right-of-use assets obtained in exchange for lease obligation	58,598
Non-cash financing activity:
Issuance of Excess servicing spread payable to PennyMac Mortgage Investment Trust pursuant to a recapture agreement	508	904
Issuance of Class A common stock and common stock in settlement of director fees	$ 86	$ 79