Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Name:	us-gaap_TreasuryStockValueAcquiredCostMethod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Repurchase Program (Details) - USD ($)	3 Months Ended	9 Months Ended
Repurchase Program (Details) - USD ($)	Sep. 30, 2019	Sep. 30, 2019	Sep. 30, 2018	Nov. 30, 2018
Equity, Class of Treasury Stock [Line Items]
Shares repurchased, value	$ 3,494,000	$ 19,031,000
Share repurchase program
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount				$ 100,000,000
Shares repurchased (in shares)		2,537,833	0
Shares repurchased, value		$ 19,000,000.0
Stock repurchase program, remaining authorized repurchase amount	$ 81,000,000.0	$ 81,000,000.0