Derivative Financial Instruments (Interest Rate Cap Derivative Summary) (Detail) $ in Thousands	6 Months Ended
Jun. 30, 2016 USD ($)
Interest Rate Cap, $56.5 million, August 2016 \| Not Designated as Hedging Instrument
Interest Rate Cap Derivative Summary [Line Items]
Derivative, maturity date	Aug. 22, 2016
Notional amount	$ 56,500
Fair Value as of End of Period	$ 0
Interest Rate Cap, $100 million, March 2017 \| Not Designated as Hedging Instrument
Interest Rate Cap Derivative Summary [Line Items]
Derivative, maturity date	Mar. 21, 2017
Notional amount	$ 100,000
Fair Value as of End of Period	$ 2
Interest Rate Cap, $75 million, November 2016 \| Not Designated as Hedging Instrument
Interest Rate Cap Derivative Summary [Line Items]
Derivative, maturity date	Nov. 16, 2016
Notional amount	$ 75,000
Fair Value as of End of Period	0
Total Interest Rate Cap
Interest Rate Cap Derivative Summary [Line Items]
Notional amount	581,500
Fair Value as of End of Period	$ 14
Cash Flow Hedging \| Interest Rate Cap, $216.5 million, August 2016 \| Designated as Hedging Instrument
Interest Rate Cap Derivative Summary [Line Items]
Derivative, maturity date	Aug. 29, 2016
Notional amount	$ 216,500
Fair Value as of End of Period	$ 0
Cash Flow Hedging \| Interest Rate Cap, $43.5 million, August 2016 \| Designated as Hedging Instrument
Interest Rate Cap Derivative Summary [Line Items]
Derivative, maturity date	Aug. 22, 2016
Notional amount	$ 43,500
Fair Value as of End of Period	$ 0
Cash Flow Hedging \| Interest Rate Cap, $50 million, September 2017 \| Designated as Hedging Instrument
Interest Rate Cap Derivative Summary [Line Items]
Derivative, maturity date	Sep. 15, 2017
Notional amount	$ 50,000
Fair Value as of End of Period	$ 6
Cash Flow Hedging \| Interest Rate Cap, $40 million, September 2017 \| Designated as Hedging Instrument
Interest Rate Cap Derivative Summary [Line Items]
Derivative, maturity date	Sep. 30, 2017
Notional amount	$ 40,000
Fair Value as of End of Period	6
Cash Flow Hedging \| Total Interest Rate Cap \| Designated as Hedging Instrument
Interest Rate Cap Derivative Summary [Line Items]
Notional amount	350,000
Fair Value as of End of Period	$ 12

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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Fair value as of the balance sheet date of interest rate derivative assets, net of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized on the balance sheet.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13433-108611

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13495-108611

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[Line Items] for Interest Rate Cap Derivative Summary [Table]

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