Loans Receivable, Net - Recorded Investment in Residential and Consumer Loans Based on Payment Activity Excluding PCI Loans (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Non-performing	$ 16,507	$ 18,274
Total loans	3,048,912	1,997,938
Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Non-performing	7,017	5,779
Total loans	1,107,842	842,006
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Non-performing	1,450	1,576
Total loans	252,574	193,160
Residential Real Estate [Member] \| Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Performing	1,100,825	836,227
Non-performing	7,017	5,779
Total loans	1,107,842	842,006
Residential Real Estate [Member] \| Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Performing	251,124	191,584
Non-performing	1,450	1,576
Total loans	$ 252,574	$ 193,160

Credit quality of loan receivables performing.

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=65884687&loc=d3e4428-111522

+ Details

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- Definition

Reflects the carrying amount of loans deemed to be questionable as to collection on which no interest is continuing to be recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5111-111524

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