XML 43 R53.htm IDEA: XBRL DOCUMENT

Commitments and Contingencies - Purchase Commitments (Details) (Land Purchases [Member], USD $) In Millions, unless otherwise specified	Mar. 31, 2015
Land Purchases [Member]
Long-term Purchase Commitment [Line Items]
Remaining amount commitment to future land purchases	$ 51.0

Minimum amount to be expended to satisfy the terms of arrangements in which the entity has agreed to expend funds to procure goods or services, excluding long-term purchase commitments or unconditional purchase obligations.

+ References+ Details